IS25LP032A/B

IS25LP064A/B
IS25LP032A/B
64/32MBIT
3V SERIAL FLASH MEMORY WITH 133MHZ MULTI I/O SPI & QUAD
I/O QPI DTR INTERFACE
ADVANCED DATA SHEET
IS25LP064/032A/B
64/32MBIT
3V SERIAL FLASH MEMORY WITH 133MHZ MULTI I/O SPI &
QUAD I/O QPI DTR INTERFACE
ADVANCED INFORMATION
FEATURES
• Industry Standard Serial Interface
- IS25LP064A/B: 64Mbit/8Mbyte
- IS25LP032A/B: 32Mbit/4Mbyte
- 256 bytes per Programmable Page
- Supports standard SPI, Fast, Dual, Dual
I/O, Quad, Quad I/O, SPI DTR, Dual I/O
DTR, Quad I/O DTR, and QPI
- Double Transfer Rate (DTR) option
- Supports Serial Flash Discoverable
Parameters (SFDP)
• High Performance Serial Flash (SPI)
- 50MHz Normal and 133Mhz Fast Read
- 532MHz equivalent QPI
- DTR (Dual Transfer Rate) up to 66MHz
- Selectable dummy cycles
- Configurable drive strength
- Supports SPI Modes 0 and 3
- More than 100,000 erase/program cycles
- More than 20-year data retention
• Flexible & Efficient Memory Architecture
- Chip Erase with Uniform Sector/Block
Erase (4/32/64 Kbyte)
- Program 1 to 256 bytes per page
- Program/Erase Suspend & Resume
• Efficient Read and Program modes
- Low Instruction Overhead Operations
- Continuous Read 8/16/32/64-Byte burst
- Selectable burst length
- QPI for reduced instruction overhead
Integrated Silicon Solution, Inc.- www.issi.com
Rev. 00C
05/21/2015
• Low Power with Wide Temp. Ranges
- Single 2.3V to 3.6V Voltage Supply
- 10 mA Active Read Current
- 10 µA Standby Current
- 5 µA Deep Power Down
- Temp Grades:
Extended: -40°C to +105°C
Extended+: -40°C to +125°C
Auto Grade: up to +125°C
Note: Extended+ should not be used for Automotive.
• Advanced Security Protection
- Software and Hardware Write Protection
- Power Supply lock protect
- 4x256-Byte dedicated security area
with OTP user-lockable bits
- 128 bit Unique ID for each device (Call
Factory)
• Industry Standard Pin-out & Packages(1),(2)
- B = 8-pin SOIC 208mil
- F = 8-pin VSOP 208mil
- K = 8-contact WSON 6x5mm
- L = 8-contact WSON 8x6mm
- M = 16-pin SOIC 300mil(3)
- G = 24-ball TFBGA 6x8mm
- KGD (Call Factory)
Notes:
1. Call Factory for other package options available.
2. For the RESET# pin option instead of HOLD# pin, call
Factory.
3. For the additional RESET# pin option, see the
Ordering Information
2
IS25LP064/032A/B
GENERAL DESCRIPTION
The IS25LP064/032A/B Serial Flash memory offers a versatile storage solution with high flexibility and
performance in a simplified pin count package. ISSI’s “Industry Standard Serial Interface” Flash are for systems
that require limited space, a low pin count, and low power consumption. The device is accessed through a 4wire SPI Interface consisting of a Serial Data Input (SI), Serial Data Output (SO), Serial Clock (SCK), and Chip
Enable (CE#) pins, which can also be configured to serve as multi-I/O (see pin descriptions).
The device supports Dual and Quad I/O as well as standard, Dual Output, and Quad Output SPI. Clock
frequencies of up to 133MHz allow for equivalent clock rates of up to 532MHz (133MHz x 4) which equates to
66Mbytes/s of data throughput. The IS25xP series of Flash adds support for DTR (Double Transfer Rate)
commands that transfer addresses and read data on both edges of the clock. These transfer rates can
outperform 16-bit Parallel Flash memories allowing for efficient memory access to support XIP (execute in
place) operation.
The memory array is organized into programmable pages of 256-bytes. This family supports page program
mode where 1 to 256 bytes of data are programmed in a single command. QPI (Quad Peripheral Interface)
supports 2-cycle instruction further reducing instruction times. Pages can be erased in groups of 4Kbyte
sectors, 32Kbyte blocks, 64Kbyte blocks, and/or the entire chip. The uniform sector and block architecture
allows for a high degree of flexibility so that the device can be utilized for a broad variety of applications
requiring solid data retention.
GLOSSARY
Standard SPI
In this operation, a 4-wire SPI Interface is utilized, consisting of Serial Data Input (SI), Serial Data Output (SO),
Serial Clock (SCK), and Chip Enable (CE#) pins. Instructions are sent via the SI pin to encode instructions,
addresses, or input data to the device on the rising edge of SCK. The SO pin is used to read data or to check the
status of the device. This device supports SPI bus operation modes (0,0) and (1,1).
Mutil I/O SPI
Multi-I/O operation utilizes an enhanced SPI protocol to allow the device to function with Dual Output, Dual Input
and Output, Quad Output, and Quad Input and Output capability. Executing these instructions through SPI
mode will achieve double or quadruple the transfer bandwidth for READ and PROGRAM operations.
Quad I/O QPI
The device enables QPI protocol by issuing an “Enter QPI mode (35h)” command. The QPI mode uses four IO
pins for input and output to decrease SPI instruction overhead and increase output bandwidth. SI and SO pins
become bidirectional IO0 and IO1, and WP# and HOLD# pins become IO2 and IO3 respectively during QPI
mode. Issuing an “Exit QPI (F5h) command will cause the device to exit QPI mode. Power Reset or
Hardware/Software Reset can also return the device into the standard SPI mode.
DTR
In addition to SPI and QPI features, the device also supports SPI DTR READ. SPI DTR allows high data
throughput while running at lower clock frequencies. SPI DTR READ mode uses both rising and falling edges of
the clock to drive output, resulting in reducing input and output cycles by half.
Programmable drive strength and Selectable burst setting
The device offers programmable output drive strength and selectable burst (wrap) length features to increase
the efficiency and performance of READ operations. The driver strength and burst setting features are controlled
by setting the Read Register. A total of six different drive strengths and four different burst sizes (8/16/32/64
Bytes) are available for selection.
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IS25LP064/032A/B
TABLE OF CONTENTS
FEATURES .......................................................................................................................................................... 2
GENERAL DESCRIPTION .................................................................................................................................. 3
TABLE OF CONTENTS ....................................................................................................................................... 4
1.
PIN CONFIGURATION ................................................................................................................................. 7
2.
PIN DESCRIPTIONS .................................................................................................................................... 8
3.
BLOCK DIAGRAM ...................................................................................................................................... 10
4.
SPI MODES DESCRIPTION ...................................................................................................................... 11
5.
SYSTEM CONFIGURATION ...................................................................................................................... 13
5.1 BLOCK/SECTOR ADDRESSES .......................................................................................................... 13
6.
REGISTERS ............................................................................................................................................... 14
6.1 STATUS REGISTER ............................................................................................................................ 14
6.2 FUNCTION REGISTER ........................................................................................................................ 17
6.3 READ REGISTER................................................................................................................................. 18
7.
PROTECTION MODE................................................................................................................................. 20
7.1 HARDWARE WRITE PROTECTION.................................................................................................... 20
7.2 SOFTWARE WRITE PROTECTION .................................................................................................... 20
8.
DEVICE OPERATION ................................................................................................................................ 21
8.1 NORMAL READ OPERATION (NORD, 03h) ....................................................................................... 23
8.2 FAST READ OPERATION (FRD, 0Bh) ................................................................................................ 25
8.3 HOLD OPERATION .............................................................................................................................. 27
8.4 FAST READ DUAL I/O OPERATION (FRDIO, BBh) ........................................................................... 27
8.5 FAST READ DUAL OUTPUT OPERATION (FRDO, 3Bh) ................................................................... 30
8.6 FAST READ QUAD OUTPUT OPERATION (FRQO, 6Bh).................................................................. 31
8.7 FAST READ QUAD I/O OPERATION (FRQIO, EBh) .......................................................................... 33
8.8 PAGE PROGRAM OPERATION (PP, 02h) .......................................................................................... 37
8.9 QUAD INPUT PAGE PROGRAM OPERATION (PPQ, 32h/38h) ........................................................ 39
8.10 ERASE OPERATION ......................................................................................................................... 40
8.11 SECTOR ERASE OPERATION (SER, D7h/20h) ............................................................................... 41
8.12 BLOCK ERASE OPERATION (BER32K:52h, BER64K:D8h) ............................................................ 42
8.13 CHIP ERASE OPERATION (CER, C7h/60h) ..................................................................................... 44
8.14 WRITE ENABLE OPERATION (WREN, 06h) .................................................................................... 45
8.15 WRITE DISABLE OPERATION (WRDI, 04h) ..................................................................................... 46
8.16 READ STATUS REGISTER OPERATION (RDSR, 05h) ................................................................... 47
8.17 WRITE STATUS REGISTER OPERATION (WRSR, 01h) ................................................................. 48
8.18 READ FUNCTION REGISTER OPERATION (RDFR, 48h) ............................................................... 49
8.19 WRITE FUNCTION REGISTER OPERATION (WRFR, 42h)............................................................. 50
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IS25LP064/032A/B
8.20 ENTER QUAD PERIPHERAL INTERFACE (QPI) MODE OPERATION (QIOEN, 35h; QIODI, F5h)51
8.21 PROGRAM/ERASE SUSPEND & RESUME ...................................................................................... 52
8.22 ENTER DEEP POWER DOWN (DP, B9h) ......................................................................................... 54
8.23 RELEASE DEEP POWER DOWN (RDPD, ABh) ............................................................................... 55
8.24 SET READ PARAMETERS OPERATION (SRP, C0h) ...................................................................... 56
8.25 READ PRODUCT IDENTIFICATION (RDID, ABh) ............................................................................ 58
8.26 READ PRODUCT IDENTIFICATION BY JEDEC ID OPERATION (RDJDID, 9Fh; RDJDIDQ, AFh) 60
8.27 READ DEVICE MANUFACTURER AND DEVICE ID OPERATION (RDMDID, 90h) ........................ 61
8.28 READ UNIQUE ID NUMBER (RDUID, 4Bh) ...................................................................................... 62
8.29 READ SFDP OPERATION (RDSFDP, 5Ah) ...................................................................................... 63
8.30 NO OPERATION (NOP, 00h) ............................................................................................................. 63
8.31 SOFTWARE RESET (RESET-ENABLE (RSTEN, 66h) AND RESET (RST, 99h)) AND HARDWARE
RESET ........................................................................................................................................................ 64
8.32 SECURITY INFORMATION ROW ...................................................................................................... 65
8.33 INFORMATION ROW ERASE OPERATION (IRER, 64h) ................................................................. 66
8.34 INFORMATION ROW PROGRAM OPERATION (IRP, 62h) ............................................................. 67
8.35 INFORMATION ROW READ OPERATION (IRRD, 68h) ................................................................... 68
8.36 FAST READ DTR MODE OPERATION (FRDTR, 0Dh) ..................................................................... 69
8.37 FAST READ DUAL IO DTR MODE OPERATION (FRDDTR, BDh) .................................................. 71
8.38 FAST READ QUAD IO DTR MODE OPERATION (FRQDTR, EDh) ................................................. 74
8.39 SECTOR LOCK/UNLOCK FUNCTIONS ............................................................................................ 78
9.
ELECTRICAL CHARACTERISTICS........................................................................................................... 80
9.1 ABSOLUTE MAXIMUM RATINGS
(1)
................................................................................................... 80
9.2 OPERATING RANGE ........................................................................................................................... 80
9.3 DC CHARACTERISTICS ...................................................................................................................... 81
9.4 AC MEASUREMENT CONDITIONS .................................................................................................... 82
9.5 AC CHARACTERISTICS ...................................................................................................................... 83
9.6 SERIAL INPUT/OUTPUT TIMING ........................................................................................................ 85
9.7 POWER-UP AND POWER-DOWN ...................................................................................................... 87
9.8 PROGRAM/ERASE PERFORMANCE ................................................................................................. 88
9.9 RELIABILITY CHARACTERISTICS ..................................................................................................... 88
10.
PACKAGE TYPE INFORMATION ......................................................................................................... 89
10.1 8-Pin JEDEC 208mil Broad Small Outline Integrated Circuit (SOIC) Package (B) ............................ 89
10.2 8-Contact Ultra-Thin Small Outline No-Lead (WSON) Package 6x5mm (K)...................................... 90
10.3 8-Contact Ultra-Thin Small Outline No-Lead (WSON) Package 8x6mm (L) ...................................... 91
10.4 8-Pin 208mil VSOP Package (F) ........................................................................................................ 92
10.5 16-lead Plastic Small Outline package (300 mils body width) (M) ..................................................... 93
10.6 24-Ball Thin Profile Fine Pitch BGA 6x8mm (G) ................................................................................. 94
Integrated Silicon Solution, Inc.- www.issi.com
Rev. 00C
05/21/2015
5
IS25LP064/032A/B
11.
ORDERING INFORMATION- Valid Part Numbers................................................................................ 95
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Rev. 00C
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IS25LP064/032A/B
1. PIN CONFIGURATION
CE#
1
Vcc
8
8 Vcc
CE# 1
SO (IO1)
WP# (IO2)
GND
2
3
4
(1)
7
HOLD# (IO3)
6
SCK
5
SI (IO0)
SO (IO1)
2
7 HOLD# (IO3)
WP# (IO2)
3
6 SCK
GND
4
5 SI (IO0)
(1)
8-contact WSON 6x5mm
8-contact WSON 8x6mm
8-pin SOIC 208mil
8-pin VSOP 208mil
Top View, Balls Facing Down
HOLD# (IO3)
(2)
Vcc
RESET#/NC
1
2
(2)
16
15
SCK
SI (IO0)
3
14
NC
NC
4
13
NC
NC
5
12
NC
NC
6
11
CE#
7
10
SO (IO1)
8
9
16-pin SOIC 300mil
NC
GND
WP# (IO2)
A1
A2
A3
A4
NC
NC
NC
NC
B1
B2
B3
B4
NC
SCK
GND
VCC
C1
C2
C3
C4
NC
CE#
NC
WP#(IO2)
D3
D4
D1
D2
NC
SO(IO1)
(1)
SI(IO0) HOLD#(IO3)
E1
E2
E3
E4
NC
NC
NC
NC
F1
F2
F3
F4
NC
NC
NC
NC
24-ball TFBGA 6x8mm
Notes:
1. For RESET# pin option instead of HOLD# pin, call Factory.
2. In case of 16-pin SOIC package, there are three options.
1) Pin1 is HOLD# (IO3) and Pin3 is NC.
2) Pin1 is HOLD# (IO3) and Pin3 is additional RESET# pin. The RESET# pin will be independent of the QE bit of
Status Register. The RESET# pin has an internal pull-up resistor and may be left floating if not used. See the
Ordering Information for the additional RESET# pin option.
3) Pin1 is RESET# (IO3) and Pin3 is NC. Call Factory for the dedicated part.
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IS25LP064/032A/B
2. PIN DESCRIPTIONS
For all other packages except 16-pin SOIC 300mil with additional RESET# pin option on pin3
SYMBOL
TYPE
DESCRIPTION
Chip Enable: The Chip Enable (CE#) pin enables and disables the devices
operation. When CE# is high the device is deselected and output pins are in a high
impedance state. When deselected the devices non-critical internal circuitry power
down to allow minimal levels of power consumption while in a standby state.
CE#
INPUT
When CE# is pulled low the device will be selected and brought out of standby
mode. The device is considered active and instructions can be written to, data read,
and written to the device. After power-up, CE# must transition from high to low
before a new instruction will be accepted.
Keeping CE# in a high state deselects the device and switches it into its low power
state. Data will not be accepted when CE# is high.
SI (IO0),
SO (IO1)
INPUT/OUTPUT
Serial Data Input, Serial Output, and IOs (SI, SO, IO0, and IO1):
This device supports standard SPI, Dual SPI, and Quad SPI operation. Standard SPI
instructions use the unidirectional SI (Serial Input) pin to write instructions,
addresses, or data to the device on the rising edge of the Serial Clock (SCK).
Standard SPI also uses the unidirectional SO (Serial Output) to read data or status
from the device on the falling edge of the serial clock (SCK).
In Dual and Quad SPI mode, SI and SO become bidirectional IO pins to write
instructions, addresses or data to the device on the rising edge of the Serial Clock
(SCK) and read data or status from the device on the falling edge of SCK. Quad SPI
instructions use the WP# and HOLD# pins as IO2 and IO3 respectively.
WP# (IO2)
INPUT/OUTPUT
Write Protect/Serial Data IO (IO2): The WP# pin protects the Status Register from
being written in conjunction with the SRWD bit. When the SRWD is set to “1” and the
WP# is pulled low, the Status Register bits (SRWD, QE, BP3, BP2, BP1, BP0) are
write-protected and vice-versa for WP# high. When the SRWD is set to “0”, the
Status Register is not write-protected regardless of WP# state.
When the QE bit is set to “1”, the WP# pin (Write Protect) function is not available
since this pin is used for IO2.
HOLD#/Serial Data IO (IO3): When the QE bit of Status Register is set to “1”,
HOLD# pin is not available since it becomes IO3. When QE=0 the pin acts as
HOLD#.
RESET# pin instead of HOLD# can be selected with dedicated parts (Call Factory).
HOLD#
INPUT/OUTPUT
The HOLD# pin allows the device to be paused while it is selected. It pauses serial
communication by the master device without resetting the serial sequence. The
HOLD# pin is active low. When HOLD# is in a low state and CE# is low, the SO pin
will be at high impedance. Device operation can resume when HOLD# pin is brought
to a high state.
RESET# pin is a hardware RESET signal. When RESET# is driven HIGH, the
memory is in the normal operating mode. When RESET# is driven LOW, the
memory enters reset mode and output is High-Z. If RESET# is driven LOW while an
internal WRITE, PROGRAM, or ERASE operation is in progress, data may be lost.
SCK
INPUT
Vcc
POWER
GND
GROUND
NC
Unused
Serial Data Clock: Synchronized Clock for input and output timing operations.
Power: Device Core Power Supply
Ground: Connect to ground when referenced to Vcc
NC: Pins labeled “NC” stand for “No Connect” and should be left uncommitted.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. 00C
05/21/2015
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IS25LP064/032A/B
For 16-pin SOIC 300mil package with additional RESET# pin option on pin3
- RESET# will be added to pin3 and pin1 will become HOLD# (IO3) pin (See the Ordering Information for the
parts)
SYMBOL
TYPE
CE#
INPUT
Same as the description in previous page
INPUT/OUTPUT
Same as the description in previous page
INPUT/OUTPUT
Same as the description in previous page
SI (IO0),
SO (IO1)
WP# (IO2)
DESCRIPTION
Hold/Serial Data IO (IO3): When the QE bit of Status Register is set to “1”, HOLD#
pin is not available since it becomes IO3. When QE=0 the pin acts as HOLD#.
HOLD# (IO3)
INPUT/OUTPUT
The HOLD# pin allows the device to be paused while it is selected. It pauses serial
communication by the master device without resetting the serial sequence. The
HOLD# pin is active low. When HOLD# is in a low state and CE# is low, the SO pin
will be at high impedance. Device operation can resume when HOLD# pin is brought
to a high state.
RESET: This additional RESET# pin is available only for dedicated parts. The
RESET# pin will be independent of the QE bit of Status Register.
The RESET# pin is a hardware RESET signal. When RESET# is driven HIGH, the
memory is in the normal operating mode. When RESET# is driven LOW, the
memory enters reset mode and output is High-Z. If RESET# is driven LOW while an
internal WRITE, PROGRAM, or ERASE operation is in progress, data may be lost.
RESET#
INPUT/OUTPUT
SCK
INPUT
Same as the description in previous page
Vcc
POWER
Same as the description in previous page
GND
GROUND
Same as the description in previous page
NC
Unused
Same as the description in previous page
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IS25LP064/032A/B
3. BLOCK DIAGRAM
Control Logic
High Voltage Generator
Status
Register
I/O Buffers and
Data Latches
256 Bytes
Page Buffer
Serial Peripheral Interface
CE#
SCK
WP#
(IO2)
SI
(IO0)
SO
(IO1)
(1)
X-Decoder
HOLD#
(IO3)
Y-Decoder
Memory Array
Address Latch &
Counter
Note1: For RESET# pin option instead of HOLD# pin, call Factory. In case of 16-pin SOIC package, there is also
additional RESET# pin option on pin3 without replacing HOLD# pin. See the Ordering Information for the
additional RESET# pin option.
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IS25LP064/032A/B
4. SPI MODES DESCRIPTION
Multiple IS25LP064/032A/B devices can be connected on the SPI serial bus and controlled by a SPI Master, i.e.
microcontroller, as shown in Figure 4.1. The devices support either of two SPI modes:
Mode 0 (0, 0)
Mode 3 (1, 1)
The difference between these two modes is the clock polarity. When the SPI master is in stand-by mode, the
serial clock remains at “0” (SCK = 0) for Mode 0 and the clock remains at “1” (SCK = 1) for Mode 3. Please refer
to Figure 4.2 and Figure 4.3 for SPI and QPI mode. In both modes, the input data is latched on the rising edge
of Serial Clock (SCK), and the output data is available from the falling edge of SCK.
Figure 4.1 Connection Diagram among SPI Master and SPI Slaves (Memory Devices)
SDO
SPI interface with
(0,0) or (1,1)
SDI
SCK
SCK SO
SI
SCK SO
SI
SCK SO
SI
SPI Master
(i.e. Microcontroller)
CS3
CS2
SPI
Memory
Device
CS1
SPI
Memory
Device
CE#
SPI
Memory
Device
CE#
CE#
(1)
WP# HOLD#
(1)
WP# HOLD#
WP# HOLD#
(1)
Notes:
1. For RESET# pin option instead of HOLD# pin, call Factory. In case of 16-pin SOIC package, there is also
additional RESET# pin option on pin3 without replacing HOLD# pin. See the Ordering Information for the
additional RESET# pin option.
2. SI and SO pins become bidirectional IO0 and IO1, and WP# and HOLD# pins become IO2 and IO3 respectively
during QPI mode.
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IS25LP064/032A/B
Figure 4.2 SPI Mode Support
SCK
Mode 0 (0,0)
SCK
Mode 3 (1,1)
MSB
SI
SO
MSB
Figure 4.3 QPI Mode Support
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SCK
Mode 0
3-byte Address
Mode Bits
Data 1
Data 2
Data 3
IO0
C4
C0
20
16
12
8
4
0
4
0
4
0
4
0
4
0
...
IO1
C5
C1
21
17
13
9
5
1
5
1
5
1
5
1
5
1
...
IO2
C6
C2
22
18
14
10
6
2
6
2
6
2
6
2
6
2
...
IO3
C71
C3
23 1
19
15
11
7
3
71
3
71
3
71
3
71
3
...
Note1: MSB (Most Significant Bit)
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IS25LP064/032A/B
5. SYSTEM CONFIGURATION
The memory array of the IS25LP064/032A/B is divided into uniform 4 Kbyte sectors or uniform 32/64 Kbyte
blocks (a block consists of eight/sixteen adjacent sectors respectively).
Table 5.1 illustrates the memory map of the device. The Status Register controls how the memory is protected.
5.1 BLOCK/SECTOR ADDRESSES
Table 5.1 Block/Sector Addresses of IS25LP064/032A/B
Memory Density
Block No.
(64Kbyte)
Block No.
(32Kbyte)
Block 0
Block 0
Block 1
Block 2
Block 1
Block 3
32Mb
Block 4
Block 2
Block 5
64Mb
:
:
Block 126
Block 63
Block 127
:
:
Block 254
Block 127
Block 255
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Sector 0
Sector Size
(Kbyte)
4
:
:
:
:
Sector 15
Sector 16
:
4
4
:
00F000h - 00FFFFh
010000h – 010FFFh
:
:
Sector 31
Sector 32
:
:
4
4
:
:
01F000h - 01FFFFh
020000h – 020FFFh
:
:
Sector 47
:
:
4
:
:
02F000h – 02FFFFh
:
:
:
Sector 1008
4
3F0000h – 3F0FFFh
:
:
Sector 1023
:
:
4
:
:
3FF000h – 3FFFFFh
:
:
:
Sector 2032
4
7F0000h – 7F0FFFh
:
:
Sector 2047
:
:
4
:
:
7FF000h – 7FFFFFh
Sector No.
Address Range
000000h – 000FFFh
13
IS25LP064/032A/B
6. REGISTERS
The IS25LP064/032A/B has three sets of Registers: Status, Function and Read.
6.1 STATUS REGISTER
Status Register Format and Status Register Bit Definitions are described in Table 6.1 & Table 6.2.
Table 6.1 Status Register Format
Default
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
SRWD
QE
BP3
BP2
BP1
BP0
WEL
WIP
0
0
0
0
0
0
0
0
Table 6.2 Status Register Bit Definition
Bit
Name
Bit 0
WIP
Bit 1
WEL
Bit 2
BP0
Bit 3
BP1
Bit 4
BP2
Bit 5
BP3
Bit 6
QE
Bit 7
SRWD
Definition
Write In Progress Bit:
"0" indicates the device is ready(default)
"1" indicates a write cycle is in progress and the device is busy
Write Enable Latch:
"0" indicates the device is not write enabled (default)
"1" indicates the device is write enabled
Block Protection Bit: (See Table 6.4 for details)
"0" indicates the specific blocks are not write-protected (default)
"1" indicates the specific blocks are write-protected
Quad Enable bit:
“0” indicates the Quad output function disable (default)
“1” indicates the Quad output function enable
Status Register Write Disable: (See Table 7.1 for details)
"0" indicates the Status Register is not write-protected (default)
"1" indicates the Status Register is write-protected
Read/Write
Type
R
Volatile
R/W
1
Volatile
R/W
Non-Volatile
R/W
Non-Volatile
R/W
Non-Volatile
Note1: WEL bit can be written by WREN and WRDI commands, but cannot by WRSR command.
The BP0, BP1, BP2, BP3, QE, and SRWD are non-volatile memory cells that can be written by a Write Status
Register (WRSR) instruction. The default value of the BP0, BP1, BP2, BP3, QE, and SRWD bits were set to “0”
at factory. The Status Register can be read by the Read Status Register (RDSR).
The function of Status Register bits are described as follows:
WIP bit: The Write In Progress (WIP) bit is read-only, and can be used to detect the progress or completion of a
program or erase operation. When the WIP bit is “0”, the device is ready for write Status Register, program or
erase operation. When the WIP bit is “1”, the device is busy.
WEL bit: The Write Enable Latch (WEL) bit indicates the status of the internal write enable latch. When the
WEL is “0”, the write enable latch is disabled and the write operations described in Table 6.3 are inhibited. When
the WEL bit is “1”, the write operations are allowed. The WEL bit is set by a Write Enable (WREN) instruction.
Each write register, program and erase instruction except for Set Read Register must be preceded by a WREN
instruction. The WEL bit can be reset by a Write Disable (WRDI) instruction. It will automatically reset after the
completion of any write operation.
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Table 6.3 Instructions requiring WREN instruction ahead
Instructions must be preceded by the WREN instruction
Name
PP
Hex Code
Operation
02h
Serial Input Page Program
PPQ
32h/38h
Quad Input Page Program
SER
D7h/20h
Sector Erase
BER32 (32Kb)
52h
Block Erase 32K
BER64 (64Kb)
D8h
Block Erase 64K
CER
C7h/60h
Chip Erase
WRSR
01h
Write Status Register
WRFR
42h
Write Function Register
IRP
62h
Program Information Row
BP3, BP2, BP1, BP0 bits: The Block Protection (BP3, BP2, BP1 and BP0) bits are used to define the portion of
the memory area to be protected. Refer to Table 6.4 for the Block Write Protection (BP) bit settings. When a
defined combination of BP3, BP2, BP1 and BP0 bits are set, the corresponding memory area is protected. Any
program or erase operation to that area will be inhibited.
Note: A Chip Erase (CER) instruction will be ignored unless all the Block Protection Bits are “0”s.
SRWD bit: The Status Register Write Disable (SRWD) bit operates in conjunction with the Write Protection
(WP#) signal to provide a Hardware Protection Mode. When the SRWD is set to “0”, the Status Register is not
write-protected. When the SRWD is set to “1” and the WP# is pulled low (VIL), the bits of Status Register
(SRWD, QE, BP3, BP2, BP1, BP0) become read-only, and a WRSR instruction will be ignored. If the SRWD is
set to “1” and WP# is pulled high (VIH), the Status Register can be changed by a WRSR instruction.
QE bit: The Quad Enable (QE) is a non-volatile bit in the Status Register that allows quad operation. When the
QE bit is set to “0”, the pin WP# and HOLD# are enabled. When the QE bit is set to “1”, the IO2 and IO3 pins
are enabled.
WARNING: The QE bit must be set to 0 if WP# or HOLD# pin is tied directly to the power supply.
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Table 6.4 Block (64Kbyte) assignment by Block Write Protect (BP) Bits
Status Register Bits
Protected Memory Area (IS25LP064A/B, 128Blocks)
BP3
BP2
BP1
BP0
TBS(T/B selection) = 0, Top area
TBS(T/B selection) = 1, Bottom area
0
0
0
0
0( None)
0( None)
0
0
0
0
0
1
1(1 block : 127th)
1(1 block : 0th)
1
0
2(2 blocks : 126th and 127th)
2(2 blocks : 0th and 1st)
0
0
1
1
3(4 blocks : 124th to 127th)
3(4 blocks : 0th to 3rd)
0
1
0
0
4(8 blocks : 120th to 127th)
4(8 blocks : 0th to 7th)
0
1
0
1
5(16 blocks : 112nd to 127th)
5(16 blocks : 0th to 15th)
0
1
1
0
6(32 blocks : 96th to 127th)
6(32 blocks : 0th to 31st)
0
1
1
1
7(64 blocks : 64th to 127th)
7(64 blocks : 0th to 63rd)
1
x
x
x
8~15(128 blocks : 0th to 127th) All blocks
8~15(128 blocks : 0th to 127th) All blocks
Status Register Bits
Protected Memory Area (IS25LP032A/B, 64Blocks)
BP3
BP2
BP1
BP0
TBS(T/B selection) = 0, Top area
TBS(T/B selection) = 1, Bottom area
0
0
0
0
0( None)
0( None)
0
0
0
1
1(1 block : 63rd)
1(1 block : 0th)
0
0
1
0
2(2 blocks : 62nd and 63rd)
2(2 blocks : 0th and 1st)
0
0
1
1
3(4 blocks : 60th to 63rd)
3(4 blocks : 0th to 3rd)
0
1
0
0
4(8 blocks : 56th to 63rd)
4(8 blocks : 0th to 7th)
0
1
0
1
5(16 blocks : 48th to 63rd)
5(16 blocks : 0th to 15th)
0
1
1
0
6(32 blocks : 32nd to 63rd)
6(32 blocks : 0th to 31st)
0
1
1
1
7(64 blocks : 0th to 63rd) All blocks
7(64 blocks : 0th to 63rd) All blocks
1
x
x
x
8~15(64 blocks : 0th to 63rd) All blocks
8~15(64 blocks : 0th to 63rd) All blocks
Note: x is don’t care
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6.2 FUNCTION REGISTER
Function Register Format and Bit definition are described in Table 6.5 and Table 6.6.
Table 6.5 Function Register Format
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
IRL3
IRL2
IRL1
IRL0
ESUS
PSUS
TBS
Reserved
0
0
0
0
0
0
0
0
Default
Table 6.6 Function Register Bit Definition
Bit
Name
Bit 0
Reserved
Bit 1
Top/Bottom
Selection
Bit 2
PSUS
Bit 3
ESUS
Bit 4
IR Lock 0
Bit 5
IR Lock 1
Bit 6
IR Lock 2
Bit 7
IR Lock 3
Definition
Reserved
Top/Bottom Selection. (See Table 6.4 for details)
“0” indicates Top area.
“1” indicates Bottom area.
Program suspend bit:
“0” indicates program is not suspend
“1” indicates program is suspend
Erase suspend bit:
"0" indicates Erase is not suspend
"1" indicates Erase is suspend
Lock the Information Row 0:
“0” indicates the Information Row can be programmed
“1” indicates the Information Row cannot be programmed
Lock the Information Row 1:
“0” indicates the Information Row can be programmed
“1” indicates the Information Row cannot be programmed
Lock the Information Row 2:
“0” indicates the Information Row can be programmed
“1” indicates the Information Row cannot be programmed
Lock the Information Row 3:
“0” indicates the Information Row can be programmed
“1” indicates the Information Row cannot be programmed
Read/Write
Type
R
Reserved
R/W
Non-Volatile
R
Volatile
R
Volatile
R/W
Non-Volatile
R/W
Non-Volatile
R/W
Non-Volatile
R/W
Non-Volatile
Note: Function Register bits are only one time programmable and cannot be modified.
Top/Bottom Selection: BP0~3 area assignment changed from Top or Bottom. See Table 6.4 for details
PSUS bit: The Program Suspend Status bit indicates when a Program operation has been suspended. The
PSUS changes to “1” after a suspend command is issued during the program operation. Once the suspended
Program resumes, the PSUS bit is reset to “0”.
ESUS bit: The Erase Suspend Status indicates when an Erase operation has been suspended. The ESUS bit is
“1” after a suspend command is issued during an Erase operation. Once the suspended Erase resumes, the
ESUS bit is reset to “0”.
IR Lock bit 0 ~ 3: The Information Row Lock bits are programmable. If the bit set to “1”, the Information Row
can’t be programmed.
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6.3 READ REGISTER
Read Register format and Bit definitions pertaining to QPI mode are described below.
READ PARAMETER BITS
Table 6.7 defines all bits that control features in SPI/QPI modes. The ODS2, ODS1, ODS0 (P7, P6, P5) bits
provide a method to set and control driver strength. The Dummy Cycle bits (P4, P3) define how many dummy
cycles are used during various READ modes. The wrap selection bits (P2, P1, P0) define burst length with wrap
around.
The SET READ PARAMETERS Operation (SRP, C0h) is used to set all the Read Register bits, and can thereby
define the output driver strength, number of dummy cycles used during READ modes, burst length with wrap
around.
Table 6.7 Read Parameter Table
Default (Volatile)
P7
P6
P5
ODS2
ODS1
ODS0
1
1
1
P4
Dummy
Cycles
0
P3
Dummy
Cycles
0
P2
Wrap
Enable
0
P1
Burst
Length
0
P0
Burst
Length
0
Table 6.8 Burst Length Data
P1
P0
8 bytes
0
0
16 bytes
0
1
32 bytes
1
0
64 bytes
1
1
Table 6.9 Wrap Function
Wrap around boundary
P2
Whole array regardless of P1 and P0 value
0
Burst Length set by P1 and P0
1
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Table 6.10 Read Dummy Cycles.
Read Modes
P4,P3 = 00
(Default)
P4,P3 = 01
P4,P3 = 10
P4,P3 = 11
Max Freq
Mode
Normal Read
03h
0
0
0
0
50MHz
SPI
8
8
8
8
133MHz
SPI
6
4
8
10
4cc : 84MHz
6cc : 104MHz
8cc/10cc : 133MHz
QPI
4
4
8
4
4cc : 104MHz
8cc : 133MHz
SPI
Fast Read Dual Output
3Bh
8
8
8
8
133MHz
SPI
Fast Read Quad Output
6Bh
8
8
8
8
133MHz
SPI
6
4
8
10
4cc : 84MHz
6cc : 104MHz
8cc/10cc : 133MHz
SPI , QPI
Fast read
0Bh
(3)
Fast read
0Bh
(3)
Dual IO Read
BBh
Quad IO Read
EBh
(1)
(2)
Notes:
1. When 4 dummy cycles are used the max clock frequency is 104MHz; when 8 dummy cycles are used the max
clock frequency is 133MHz.
2. When 4 dummy cycles are used the max clock frequency is 84MHz; when 6 dummy cycles are used the max
clock frequency is 104MHz; when 8 or 10 dummy cycles are used the max clock frequency is 133MHz.
3. RDUID, RDSFDP, IRRD instructions are also applied.
4. In SPI DTR mode the dummy cycles are reduced by half.
5. Dummy cycles in the table are including Mode bit cycles.
6. Must satisfy bus I/O contention. For instance, if the number of dummy cycles and AX bit cycles are same, then X
must be Hi-Z.
Table 6.11 Driver Strength Table
ODS2
ODS1
ODS0
Description
0
0
0
Reserved
0
0
1
12.50%
0
1
0
25%
0
1
1
37.50%
1
0
0
Reserved
1
0
1
75%
1
1
0
100%
1
1
1
50%
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IS25LP064/032A/B
7. PROTECTION MODE
The IS25LP064/032A/B supports hardware and software write-protection mechanisms.
7.1 HARDWARE WRITE PROTECTION
The Write Protection (WP#) pin provides a hardware write protection method for BP3, BP2, BP1, BP0, SRWD,
and QE in the Status Register. Refer to the section 6.1 STATUS REGISTER.
Write inhibit voltage (VWI) is specified in the section 9.7 POWER-UP AND POWER-DOWN. All write sequence
will be ignored when Vcc drops to VWI.
Table 7.1 Hardware Write Protection on Status Register
SRWD
WP#
Status Register
0
Low
Writable
1
Low
Protected
0
High
Writable
1
High
Writable
Note: Before the execution of any program, erase or write Status/Function Register instruction, the Write Enable
Latch (WEL) bit must be enabled by executing a Write Enable (WREN) instruction. If the WEL bit is not
enabled, the program, erase or write register instruction will be ignored.
7.2 SOFTWARE WRITE PROTECTION
The IS25LP064/032A/B also provides a software write protection feature. The Block Protection (TBS, BP3, BP2,
BP1, BP0) bits allow part or the whole memory area to be write-protected.
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8. DEVICE OPERATION
The IS25LP064/032A/B utilizes an 8-bit instruction register. Refer to Table 8.1. Instruction Set for details on
instructions and instruction codes. All instructions, addresses, and data are shifted in with the most significant bit
(MSB) first on Serial Data Input (SI) or Serial Data IOs (IO0, IO1, IO2, IO3). The input data on SI or IOs is
latched on the rising edge of Serial Clock (SCK) for normal mode and both of rising and falling edges for DTR
mode after Chip Enable (CE#) is driven low (VIL). Every instruction sequence starts with a one-byte instruction
code and is followed by address bytes, data bytes, or both address bytes and data bytes, depending on the type
of instruction. CE# must be driven high (VIH) after the last bit of the instruction sequence has been shifted in to
end the operation.
Table 8.1 Instruction Set
Instruction
Name
Operation
Total
Bytes
Mode
Byte0
Byte1
Byte2
Byte3
Byte4
NORD
Normal Read
Mode
4
SPI
03h
A
<23:16>
A
<15:8>
A
<7:0>
Data out
FRD
Fast Read
Mode
5
SPI
QPI
0Bh
3
SPI
BBh
AXh(1),(2)
Dual
Dual
Data out
FRDO
Fast Read
Dual Output
5
SPI
3Bh
Dummy(1)
Byte
Dual
Data out
FRQIO
Fast Read
Quad I/O
2
SPI
QPI
EBh
AXh(1), (2)
Quad
Quad
Data out
FRQO
Fast Read
Quad Output
5
SPI
6Bh
A
<7:0>
A
<7:0>
Dual
A
<7:0>
A
<7:0>
Quad
A
<7:0>
Data out
Fast Read
Dual I/O
A
<15:8>
A
<15:8>
Dual
A
<15:8>
A
<15:8>
Quad
A
<15:8>
Dummy(1)
Byte
FRDIO
A
<23:16>
A
<23:16>
Dual
A
<23:16>
A
<23:16>
Quad
A
<23:16>
Dummy(1)
Byte
Quad
Data out
FRDTR
Fast Read
DTR Mode
5
SPI
QPI
0Dh
3
SPI
BDh
AXh(1), (2)
Dual
Dual
Data out
FRQDTR
Fast Read
Quad I/O DTR
5
SPI
QPI
EDh
A
<7:0>
A
<7:0>
Dual
A
<7:0>
Dual
Data out
Fast Read
Dual I/O DTR
A
<15:8>
A
<15:8>
Dual
A
<15:8>
Dummy(1)
Byte
FRDDTR
A
<23:16>
A
<23:16>
Dual
A
<23:16>
AXh(1), (2)
Quad
Quad
Data out
PP
Input Page
Program
4
+ 256
SPI
QPI
02h
A
<23:16>
A
<15:8>
A
<7:0>
PD
(256byte)
PPQ
Quad Input
Page Program
4
+ 256
SPI
32h
38h
A
<23:16>
A
<15:8>
A
<7:0>
Quad PD
(256byte)
SER
Sector Erase
4
SPI
QPI
D7h
20h
A
<23:16>
A
<15:8>
A
<7:0>
BER32
(32Kb)
Block Erase
32K
4
SPI
QPI
52h
A
<23:16>
A
<15:8>
A
<7:0>
BER64
(64Kb)
Block Erase
64K
4
SPI
QPI
D8h
A
<23:16>
A
<15:8>
A
<7:0>
CER
Chip Erase
1
SPI
QPI
C7h
60h
WREN
Write Enable
1
SPI
QPI
06h
WRDI
Write Disable
1
SPI
QPI
04h
RDSR
Read Status
Register
1
SPI
QPI
05h
SR
WRSR
Write Status
Register
2
SPI
QPI
01h
WSR
Data
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Byte6
21
IS25LP064/032A/B
Instruction
Name
Operation
Total
Bytes
Mode
Byte0
Byte1
RDFR
Read Function
Register
1
SPI
QPI
48h
Data
out
WRFR
Write Function
Register
2
SPI
QPI
42h
WFR
Data
QIOEN
Enter
QPI mode
1
SPI
35h
QIODI
Exit
QPI mode
1
QPI
F5h
PERSUS
Suspend during
program/erase
1
SPI
QPI
75h
B0h
PERRSM
Resume
program/erase
1
SPI
QPI
7Ah
30h
1
SPI
QPI
B9h
4
SPI
QPI
ABh
XXh(3)
DP
RDID,
RDPD
Deep Power
Down
Read ID /
Release
Power Down
Byte2
Byte3
Byte4
XXh(3)
XXh(3)
ID7-ID0
ID7-ID0
SRP
Set Read
Parameters
2
SPI
QPI
C0h
Data in
RDJDID
Read JEDEC
ID Command
1
SPI
9Fh
MF7-MF0
ID15-ID8
RDMDID
Read
Manufacturer
& Device ID
4
SPI
QPI
90h
XXh(3)
XXh(3)
RDJDIDQ
Read JEDEC ID
QPI mode
1
QPI
AFh
MF7-MF0
(4)
ID15-ID8
(4)
Byte5
00h
MF7-MF0
ID7-ID0
01h
ID7-ID0
MF7-MF0
ID7-ID0
RDUID
Read
Unique ID
5
SPI
QPI
4Bh
A
<23:16>
A
<15:8>
A(4)
<7:0>
Dummy
Byte
Data out
RDSFDP
SFDP Read
5
SPI
QPI
5Ah
A
<23:16>
A
<15:8>
A
<7:0>
Dummy
Byte
Data out
NOP
No Operation
1
SPI
QPI
00h
RSTEN
Software
Reset
Enable
1
SPI
QPI
66h
RST
Software Reset
1
SPI
QPI
99h
Erase
Information
Row
Program
Information
Row
Read
Information
Row
4
SPI
QPI
64h
A
<23:16>
A
<15:8>
A
<7:0>
4
+ 256
SPI
QPI
62h
A
<23:16>
A
<15:8>
A
<7:0>
PD
(256byte)
5
SPI
QPI
68h
A
<23:16>
A
<15:8>
A
<7:0>
Dummy
Byte
SECUNLOCK
Sector Unlock
4
SPI
QPI
26h
A
<23:16>
A
<15:8>
A
<7:0>
SECLOCK
Sector Lock
1
SPI
QPI
24h
IRER
IRP
IRRD
Byte6
Data out
Notes:
1. The number of dummy cycles depends on the value setting in the Table 6.10 Read Dummy Cycles.
2. AXh has to be counted as a part of dummy cycles. X means “don’t care”.
3. XX means “don’t care”.
4. A<23:9> are “don’t care” and A<8:4> are always “0”.
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8.1 NORMAL READ OPERATION (NORD, 03h)
The NORMAL READ (NORD) instruction is used to read memory contents of the IS25LP064/032A/B at a
maximum frequency of 50MHz.
The NORD instruction code is transmitted via the SI line, followed by three address bytes (A23 - A0) of the first
memory location to be read. A total of 24 address bits are shifted in, but only AMSB (most significant bit) - A0 are
decoded. The remaining bits (A23 – AMSB+1) are ignored. The first byte addressed can be at any memory
location. Upon completion, any data on the SI will be ignored. Refer to Table 8.2 for the related Address Key.
The first byte data (D7 - D0) is shifted out on the SO line, MSB first. A single byte of data, or up to the whole
memory array, can be read out in one NORMAL READ instruction. The address is automatically incremented by
one after each byte of data is shifted out. The read operation can be terminated at any time by driving CE# high
(VIH) after the data comes out. When the highest address of the device is reached, the address counter will roll
over to the 000000h address, allowing the entire memory to be read in one continuous READ instruction.
If the NORMAL READ instruction is issued while an Erase, Program or Write operation is in process (WIP=1)
the instruction is ignored and will not have any effects on the current operation.
Table 8.2 Address Key
Address
IS25LP064A/B
IS25LP032A/B
AMSB – A0
A23 - A0 (A23=X)
A23 - A0 (A23,A22=X)
X=Don’t Care
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Figure 8.1 Normal Read Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
...
28
29
30
31
0
SCK
Mode 0
3-byte Address
SI
Instruction = 03h
23
22
...
21
3
2
1
45
46
47
High Impedance
SO
CE #
32
33
34
35
36
37
39
38
40
41
42
43
44
...
SCK
SI
Data Out 1
SO
tV
7
6
5
4
3
Data Out 2
2
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0
7
6
5
4
3
2
1
0
...
24
IS25LP064/032A/B
8.2 FAST READ OPERATION (FRD, 0Bh)
The FAST READ (FRD) instruction is used to read memory data at up to a 133MHz clock.
The FAST READ instruction code is followed by three address bytes (A23 - A0) and a dummy byte (8 clocks),
transmitted via the SI line, with each bit latched-in during the rising edge of SCK. Then the first data byte from
the address is shifted out on the SO line, with each bit shifted out at a maximum frequency fCT, during the falling
edge of SCK.
The first byte addressed can be at any memory location. The address is automatically incremented by one after
each byte of data is shifted out. When the highest address is reached, the address counter will roll over to the
000000h address, allowing the entire memory to be read with a single FAST READ instruction. The FAST
READ instruction is terminated by driving CE# high (VIH).
If the FAST READ instruction is issued while an Erase, Program or Write cycle is in process (WIP=1) the
instruction is ignored without affecting the current cycle.
Figure 8.2 Fast Read Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
...
28
29
30
31
SCK
Mode 0
3-byte Address
SI
Instruction = 0Bh
31
30
41
42
29
...
3
2
1
0
44
45
46
47
...
High Impedance
SO
CE #
32
33
34
35
36
37
38
39
40
43
SCK
SI
Dummy Cycles
Data Out
tV
SO
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6
5
4
3
2
1
0
...
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IS25LP064/032A/B
FAST READ QPI OPERATION (FRD QPI, 0Bh)
The FAST READ QPI (FRD QPI) instruction is used to read memory data at up to a 133MHz clock.
The FAST READ QPI instruction code (2 clocks) is followed by three address bytes (A23-A0—6clocks) and 6
dummy cycles (configurable, default is 6 clocks), transmitted via the IO3, IO2, IO1 and IO0 lines, with each bit
latched-in during the rising edge of SCK. Then the first data byte addressed is shifted out on the IO3, IO2, IO1
and IO0 lines, with each bit shifted out at a maximum frequency fCT, during the falling edge of SCK.
The first byte addressed can be at any memory location. The address is automatically incremented by one after
each byte of data is shifted out. When the highest address is reached, the address counter will roll over to the
000000h address, allowing the entire memory to be read with a single FAST READ QPI instruction. The FAST
READ QPI instruction is terminated by driving CE# high (VIH).
If the FAST READ QPI instruction is issued while an Erase, Program or Write cycle is in process (WIP=1) the
instruction is ignored without affecting the current cycle.
Figure 8.3 Fast Read QPI Sequence
CE#
Mode 3 0
1
2
3
4
5
6
7
8
9
...
13
14
15
16
17
...
SCK
Mode 0
tV
IO[3:0]
0Bh
Instruction
23:20 19:16 15:12 11:8
3-byte Address
7:4
3:0
7:4
6 Dummy Cycles
3:0
Data 1
7:4
3:0
...
Data 2
Note: Number of dummy cycles depends on Read Parameter setting. Detailed information in Table 6.10 Read
Dummy Cycles.
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IS25LP064/032A/B
8.3 HOLD OPERATION
HOLD# is used in conjunction with CE# to select the IS25LP064/032A/B. When the device is selected and a
serial sequence is underway, HOLD# can be used to pause the serial communication with the master device
without resetting the serial sequence. To pause, HOLD# is brought low while the SCK signal is low. To resume
serial communication, HOLD# is brought high while the SCK signal is low (SCK may still toggle during HOLD).
Inputs to SI will be ignored while SO is in the high impedance state, during HOLD.
Note: HOLD is not supported in DTR mode or with QE=1 or for the specific parts that do not have HOLD# pin.
Timing graph can be referenced in AC Parameters Figure 9.4
8.4 FAST READ DUAL I/O OPERATION (FRDIO, BBh)
The FRDIO allows the address bits to be input two bits at a time. This may allow for code to be executed directly
from the SPI in some applications.
The FRDIO instruction code is followed by three address bytes (A23 – A0) and dummy cycles (configurable,
default is 4 clocks), transmitted via the IO1 and IO0 lines, with each pair of bits latched-in during the rising edge
of SCK. The address MSB is input on IO1, the next bit on IO0, and this shift pattern continues to alternate
between the two lines. Depending on the usage of AX read operation mode, a mode byte may be located after
address input.
The first data byte addressed is shifted out on the IO1 and IO0 lines, with each pair of bits shifted out at a
maximum frequency fCT, during the falling edge of SCK. The MSB is output on IO1, while simultaneously the
second bit is output on IO0. Figure 8.4 illustrates the timing sequence.
The first byte addressed can be at any memory location. The address is automatically incremented by one after
each byte of data is shifted out. When the highest address is reached, the address counter will roll over to the
000000h address, allowing the entire memory to be read with a single FRDIO instruction. FRDIO instruction is
terminated by driving CE# high (VIH).
The device supports the AX read operation by applying mode bits during dummy period. Mode bits consist of 8
bits, such as M7 to M0. Four cycles after address input are reserved for Mode bits in FRDIO execution. M7 to
M4 are important for enabling this mode. M3 to M0 become don’t care for future use. When M[7:4]=1010(Ah), it
enables the AX read operation and subsequent FRDIO execution skips command code. It saves cycles as
described in Figure 8.5. When the code is different from AXh (where X is don’t care), the device exits the AX
read operation. After finishing the read operation, device becomes ready to receive a new command. SPI or QPI
mode configuration retains the prior setting. Mode bit must be applied during dummy cycles. Number of dummy
cycle in Table 6.10 includes number of mode bit cycles. If dummy cycles is configured as 4 cycles, data output
will starts right after mode bit applied.
If the FRDIO instruction is issued while an Erase, Program or Write cycle is in process (WIP=1) the instruction is
ignored and will not affect the current cycle.
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Figure 8.4 Fast Read Dual I/O Sequence (with command decode cycles)
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
...
18
19
20
21
SCK
Mode 0
4 Dummy Cycles
3-byte Address
IO0
Instruction = BBh
22
20
18
...
2
0
6
4
23
21
19
...
3
1
7
5
High Impedance
IO1
Mode Bits
CE #
22
23
24
25
26
27
29
28
30
31
32
33
34
35
36
37
...
SCK
tV
IO0
2
0
6
4
2
0
6
Data Out 1
IO1
3
1
7
5
3
4
2
0
6
Data Out 2
1
7
5
3
4
2
0
6
4
...
1
7
5
...
Data Out 3
1
7
5
3
Mode Bits
Notes:
1. If the mode bits=AXh (where X is don’t care), it can execute the AX read mode (without command). When the
mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10. Read Dummy Cycles.
3. Since the number of dummy cycles and AX bit cycles are same in the above Figure, X should be Hi-Z to avoid I/O
contention.
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Figure 8.5 Fast Read Dual I/O AX Read Sequence (without command decode cycles)
CE #
Mode 3 0
1
2
3
...
11
12
13
14
15
16
17
18
19
20
...
21
SCK
Mode 0
4 Dummy Cycles
3-byte Address
tV
Data Out 2
Data Out 1
IO0
22
20
18
...
2
0
6
4
2
0
6
4
2
0
6
4
...
IO1
23
21
19
...
3
1
7
5
3
1
7
5
3
1
7
5
...
Mode Bits
Notes:
1. If the mode bits=AXh (where X is don’t care), it will keep executing the AX read mode (without command). When
the mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
3. Since the number of dummy cycles and AX bit cycles are same in the above Figure, X should be Hi-Z to avoid I/O
contention.
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8.5 FAST READ DUAL OUTPUT OPERATION (FRDO, 3Bh)
The FRDO instruction is used to read memory data on two output pins each at up to a 133MHz clock.
The FRDO instruction code is followed by three address bytes (A23 – A0) and a dummy byte (8 clocks),
transmitted via the IO0 line, with each bit latched-in during the rising edge of SCK. Then the first data byte
addressed is shifted out on the IO1 and IO0 lines, with each pair of bits shifted out at a maximum frequency fCT,
during the falling edge of SCK. The first bit (MSB) is output on IO1. Simultaneously the second bit is output on
IO0.
The first byte addressed can be at any memory location. The address is automatically incremented by one after
each byte of data is shifted out. W hen the highest address is reached, the address counter will roll over to the
000000h address, allowing the entire memory to be read with a single FRDO instruction. The FRDO instruction
is terminated by driving CE# high (VIH).
If the FRDO instruction is issued while an Erase, Program or Write cycle is in process (BUSY=1) the instruction
is ignored and will not have any effects on the current cycle.
Figure 8.6 Fast Read Dual Output Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
...
28
29
30
31
SCK
Mode 0
3-byte Address
IO0
Instruction = 3Bh
23
22
41
42
21
...
3
2
1
0
44
45
46
47
...
High Impedance
IO1
CE #
32
33
34
35
36
37
38
39
40
43
SCK
tV
IO0
6
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0
6
Data Out 1
8 Dummy Cycles
IO1
4
7
5
3
4
2
0
...
1
...
Data Out 2
1
7
5
3
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IS25LP064/032A/B
8.6 FAST READ QUAD OUTPUT OPERATION (FRQO, 6Bh)
The FRQO instruction is used to read memory data on four output pins each at up to a 133 MHz clock.
The FRQO instruction code is followed by three address bytes (A23 – A0) and a dummy byte (8 clocks),
transmitted via the IO0 line, with each bit latched-in during the rising edge of SCK. Then the first data byte
addressed is shifted out on the IO3, IO2, IO1 and IO0 lines, with each group of four bits shifted out at a
maximum frequency fCT, during the falling edge of SCK. The first bit (MSB) is output on IO3, while
simultaneously the second bit is output on IO2, the third bit is output on IO1, etc.
The first byte addressed can be at any memory location. The address is automatically incremented after each
byte of data is shifted out. When the highest address is reached, the address counter will roll over to the
000000h address, allowing the entire memory to be read with a single FRQO instruction. FRQO instruction is
terminated by driving CE# high (VIH).
If a FRQO instruction is issued while an Erase, Program or Write cycle is in process (BUSY=1) the instruction
is ignored and will not have any effects on the current cycle.
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Figure 8.7 Fast Read Quad Output Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
...
28
29
30
31
SCK
Mode 0
3-byte Address
IO0
Instruction = 6Bh
23
22
41
42
21
...
3
2
1
0
44
45
46
47
...
High Impedance
IO1
High Impedance
IO2
High Impedance
IO3
CE #
32
33
34
35
36
37
38
39
40
43
SCK
tV
IO0
4
8 Dummy Cycles
0
4
0
4
0
4
0
...
Data Out 1 Data Out 2 Data Out 3 Data Out 4
IO1
5
1
5
1
5
1
5
1
...
IO2
6
2
6
2
6
2
6
2
...
IO3
7
3
7
3
7
3
7
3
...
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8.7 FAST READ QUAD I/O OPERATION (FRQIO, EBh)
The FRQIO instruction allows the address bits to be input four bits at a time. This may allow for code to be
executed directly from the SPI in some applications.
The FRQIO instruction code is followed by three address bytes (A23 – A0) and dummy cycles (configurable,
default is 6 clocks), transmitted via the IO3, IO2, IO1 and IO0 lines, with each group of four bits latched-in during
the rising edge of SCK. The address of MSB inputs on IO3, the next bit on IO2, the next bit on IO1, the next bit
on IO0, and continue to shift in alternating on the four. Depending on the usage of AX read operation mode, a
mode byte may be located after address input.
The first data byte addressed is shifted out on the IO3, IO2, IO1 and IO0 lines, with each group of four bits
shifted out at a maximum frequency fCT, during the falling edge of SCK. The first bit (MSB) is output on IO3,
while simultaneously the second bit is output on IO2, the third bit is output on IO1, etc. Figure 8.8 illustrates the
timing sequence.
The first byte addressed can be at any memory location. The address is automatically incremented after each
byte of data is shifted out. When the highest address is reached, the address counter will roll over to the
000000h address, allowing the entire memory to be read with a single FRQIO instruction. FRQIO instruction is
terminated by driving CE# high (VIH).
The device supports the AX read operation by applying mode bits during dummy period. Mode bits consists of 8
bits, such as M7 to M0. Two cycles after address input are reserved for Mode bits in FRQIO execution. M7 to
M4 are important for enabling this mode. M3 to M0 become don’t care for future use. When M[7:4]=1010(Ah), it
enables the AX read operation and subsequent FRQIO execution skips command code. It saves cycles as
described in Figure 8.9. When the code is different from AXh (where X is don’t care), the device exits the AX
read operation. After finishing the read operation, device becomes ready to receive a new command. SPI or QPI
mode configuration retains the prior setting. Mode bit must be applied during dummy cycles. Number of dummy
cycle in Table 6.10 includes number of mode bit cycles. If dummy cycles is configured as 6 cycles, data output
will starts right after mode bits and 4 additional dummy cycles are applied.
If the FRQIO instruction is issued while an Erase, Program or Write cycle is in process (WIP=1) the instruction is
ignored and will not have any effects on the current cycle.
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IS25LP064/032A/B
Figure 8.8 Fast Read Quad I/O Sequence (with command decode cycles)
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
11
12
13
14
15
SCK
Mode 0
3-byte Address
IO0
20
16
12
8
4
0
4
0
21
17
13
9
5
1
5
1
IO2
22
18
14
10
6
2
6
2
IO3
23
19
15
11
7
3
7
3
Instruction = EBh
High Impedance
IO1
Mode Bits
CE #
16
17
18
19
20
21
23
22
24
25
26
27
28
29
30
31
...
SCK
6 Dummy Cycles
tV Data Out 1 Data Out 2 Data Out 3 Data Out 4 Data Out 5 Data Out 6
IO0
4
0
4
0
4
0
4
0
4
0
4
0
...
IO1
5
1
5
1
5
1
5
1
5
1
5
1
...
6
2
6
2
6
2
6
2
6
2
6
2
...
7
3
7
3
7
3
7
3
7
3
7
3
...
IO2
IO3
Notes:
1. If the mode bits=AXh (where X is don’t care), it can execute the AX read mode (without command). When the
mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
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IS25LP064/032A/B
Figure 8.9 Fast Read Quad I/O AX Read Sequence (without command decode cycles)
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
...
SCK
Mode 0
6 Dummy Cycles
3-byte Address
tV
Data Out 1 Data Out 2
IO0
20
16
12
8
4
0
4
0
4
0
4
0
...
IO1
21
17
13
9
5
1
5
1
5
1
5
1
...
IO2
22
18
14
10
6
2
6
2
6
2
6
2
...
IO3
23
19
15
11
7
3
7
3
7
3
7
3
...
Mode Bits
Notes:
1. If the mode bits=AXh (where X is don’t care), it will keep executing the AX read mode (without command). When
the mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
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FAST READ QUAD I/O QPI OPERATION (FRQIO QPI, EBh)
The FRQIO QPI instruction is used to read memory data at up to a 133MHz clock.
The FRQIO QPI instruction utilizes all four IO lines to input the instruction code so that only two clocks are
required, while the FRQIO instruction requires that the byte-long instruction code is shifted into the device only
via IO0 line in eight clocks. As a result, 6 command cycles will be reduced by the FRQIO QPI instruction. In
addition, subsequent address and data out are shifted in/out via all four IO lines like the FRQIO instruction. In
fact, except for the command cycle, the FRQIO QPI operation is exactly same as the FRQIO. A Quad Enable
(QE) bit of Status Register must be set to "1" before sending the FRQIO QPI instruction.
The device supports the AX read operation by applying mode bits during dummy period. Mode bits consist of 8
bits, such as M7 to M0. Two cycles after address input are reserved for Mode bits in FRQIO execution. M7 to
M4 are important for enabling this mode. M3 to M0 become don’t care for future use. When M[7:4]=1010(Ah), it
enables the AX read operation and subsequent FRQIO execution skips command code. It saves cycles as
described in Figure 8.9. When the code is different from AXh (where X is don’t care), the device exits the AX
read operation. After finishing the read operation, device becomes ready to receive a new command. SPI or QPI
mode configuration retains the prior setting. Mode bit must be applied during dummy cycles. Number of dummy
cycles in Table 6.10 includes number of mode bit cycles. If dummy cycles are configured as 6 cycles, data
output will start right after mode bits and 4 additional dummy cycles are applied.
If the FRQIO QPI instruction is issued while an Erase, Program or Write cycle is in process (WIP=1) the
instruction is ignored and will not have any effects on the current cycle.
Figure 8.10 Fast Read Quad I/O QPI Sequence
CE#
Mode 3 0
1
2
3
4
5
6
7
8
9
...
13
14
15
16
...
17
SCK
Mode 0
Mode Bits
IO[3:0]
EBh
Instruction
23:20 19:16 15:12 11:8
3-byte Address
7:4
3:0
7:4
3:0
6 Dummy Cycles
tV
7:4
3:0
Data 1
7:4
3:0
...
Data 2
Note: Number of dummy cycles depends on Read Parameter setting. Detailed information in Table 6.10 Read
Dummy Cycles.
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IS25LP064/032A/B
8.8 PAGE PROGRAM OPERATION (PP, 02h)
The Page Program (PP) instruction allows up to 256 bytes data to be programmed into memory in a single
operation. The destination of the memory to be programmed must be outside the protected memory area set by
the Block Protection (BP3, BP2, BP1, BP0) bits. A PP instruction which attempts to program into a page that is
write-protected will be ignored. Before the execution of PP instruction, the Write Enable Latch (WEL) must be
enabled through a Write Enable (WREN) instruction.
The PP instruction code, three address bytes and program data (1 to 256 bytes) are input via the Sl line.
Program operation will start immediately after the CE# is brought high, otherwise the PP instruction will not be
executed. The internal control logic automatically handles the programming voltages and timing. During a
program operation, all instructions will be ignored except the RDSR instruction. The progress or completion of
the program operation can be determined by reading the WIP bit in Status Register via a RDSR instruction. If
the WIP bit is “1”, the program operation is still in progress. If WIP bit is “0”, the program operation has
completed.
If more than 256 bytes data are sent to a device, the address counter rolls over within the same page, the
previously latched data are discarded, and the last 256 bytes are kept to be programmed into the page. The
starting byte can be anywhere within the page. When the end of the page is reached, the address will wrap
around to the beginning of the same page. If the data to be programmed are less than a full page, the data of all
other bytes on the same page will remain unchanged.
Note: A program operation can alter “1”s into “0”s, but an erase operation is required to change “0”s back to “1”s.
A byte cannot be reprogrammed without first erasing the whole sector or block.
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IS25LP064/032A/B
Figure 8.11 Page Program Sequence
1
...
7
8
9
31
...
32
33
...
39
...
...
2079
Mode 3 0
2072
CE #
SCK
Mode 0
SI
Data In 1
3-byte Address
Instruction = 02h
23
Data In 256
22
...
0
7
6
...
0
...
7
...
0
5
6
7
8
9
10
11
12
13
14
15
...
7:4
3:0
7:4
3:0
7:4
3:0
7:4
3:0
7:4
3:0
...
High Impedance
SO
Figure 8.12 Page Program QPI Sequence
CE#
Mode 3 0
1
2
3
4
SCK
Mode 0
IO[3:0]
02h
23:20 19:16 15:12 11:8
3-byte Address
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Data In 1
Data In 2
Data In 3
Data In 4
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IS25LP064/032A/B
8.9 QUAD INPUT PAGE PROGRAM OPERATION (PPQ, 32h/38h)
The Quad Input Page Program instruction allows up to 256 bytes data to be programmed into memory in a
single operation with four pins (IO0, IO1, IO2 and IO3). The destination of the memory to be programmed must
be outside the protected memory area set by the Block Protection (BP3, BP2, BP1, BP0) bits. A Quad Input
Page Program instruction which attempts to program into a page that is write-protected will be ignored. Before
the execution of Quad Input Page Program instruction, the QE bit in the Status Register must be set to “1” and
the Write Enable Latch (WEL) must be enabled through a Write Enable (WREN) instruction.
The Quad Input Page Program instruction code, three address bytes and program data (1 to 256 bytes) are
input via the four pins (IO0, IO1, IO2 and IO3). Program operation will start immediately after the CE# is brought
high, otherwise the Quad Input Page Program instruction will not be executed. The internal control logic
automatically handles the programming voltages and timing. During a program operation, all instructions will be
ignored except the RDSR instruction. The progress or completion of the program operation can be determined
by reading the WIP bit in Status Register via a RDSR instruction. If the WIP bit is “1”, the program operation is
still in progress. If WIP bit is “0”, the program operation has completed.
If more than 256 bytes data are sent to a device, the address counter rolls over within the same page, the
previously latched data are discarded, and the last 256 bytes data are kept to be programmed into the page.
The starting byte can be anywhere within the page. When the end of the page is reached, the address will wrap
around to the beginning of the same page. If the data to be programmed are less than a full page, the data of all
other bytes on the same page will remain unchanged.
Note: A program operation can alter “1”s into “0”s, but an erase operation is required to change “0”s back to “1”s.
A byte cannot be reprogrammed without first erasing the whole sector or block.
Figure 8.13 Quad Input Page Program Sequence
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
...
31
32
33
34
35
...
SCK
Mode 0
3-byte Address
Data In 1
Data In 2
4
0
4
0
...
5
1
5
1
...
IO2
6
2
6
2
...
IO3
7
3
7
3
...
IO0
IO1
Instruction = 32h/38h
High Impedance
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22
...
0
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IS25LP064/032A/B
8.10 ERASE OPERATION
The memory array of the IS25LP064/032A/B is organized into uniform 4 Kbyte sectors or 32/64 Kbyte uniform
blocks (a block consists of eight/sixteen adjacent sectors respectively).
Before a byte is reprogrammed, the sector or block that contains the byte must be erased (erasing sets bits to
“1”). In order to erase the device, there are three erase instructions available: Sector Erase (SER), Block Erase
(BER) and Chip Erase (CER). A sector erase operation allows any individual sector to be erased without
affecting the data in other sectors. A block erase operation erases any individual block. A chip erase operation
erases the whole memory array of a device. A sector erase, block erase, or chip erase operation can be
executed prior to any programming operation.
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8.11 SECTOR ERASE OPERATION (SER, D7h/20h)
A Sector Erase (SER) instruction erases a 4 Kbyte sector before the execution of a SER instruction, the Write
Enable Latch (WEL) must be set via a Write Enable (WREN) instruction. The WEL bit is automatically reset after
the completion of Sector Erase operation.
A SER instruction is entered, after CE# is pulled low to select the device and stays low during the entire
instruction sequence The SER instruction code, and three address bytes are input via SI. Erase operation will
start immediately after CE# is pulled high. The internal control logic automatically handles the erase voltage and
timing.
During an erase operation, all instruction will be ignored except the Read Status Register (RDSR) instruction.
The progress or completion of the erase operation can be determined by reading the WIP bit in the Status
Register using a RDSR instruction.
If the WIP bit is “1”, the erase operation is still in progress. If the WIP bit is “0”, the erase operation has been
completed.
Figure 8.14 Sector Erase Sequence
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
...
28
29
30
31
1
0
SCK
Mode 0
3-byte Address
SI
SO
Instruction = D7h/20h
23
22
21
...
4
5
6
7
7:4
3:0
3
2
High Impedance
Figure 8.15 Sector Erase QPI Sequence
CE#
Mode 3 0
1
2
3
SCK
Mode 0
IO[3:0]
3-byte Address
D7h/20h
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8.12 BLOCK ERASE OPERATION (BER32K:52h, BER64K:D8h)
A Block Erase (BER) instruction erases a 32/64 Kbyte block. Before the execution of a BER instruction, the
Write Enable Latch (WEL) must be set via a Write Enable (WREN) instruction. The WEL is reset automatically
after the completion of a block erase operation.
The BER instruction code and three address bytes are input via SI. Erase operation will start immediately after
the CE# is pulled high, otherwise the BER instruction will not be executed. The internal control logic
automatically handles the erase voltage and timing.
Figure 8.16 Block Erase (64K) Sequence
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
...
28
29
30
31
2
1
0
SCK
Mode 0
3-byte Address
SI
SO
Instruction = D8h
23
22
21
...
4
5
6
7
7:4
3:0
3
High Impedance
Figure 8.17 Block Erase (64K) QPI Sequence
CE#
Mode 3 0
1
2
3
SCK
Mode 0
IO[3:0]
3-byte Address
D8h
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Figure 8.18 Block Erase (32K) Sequence
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
...
28
29
30
31
2
1
0
SCK
Mode 0
3-byte Address
SI
SO
Instruction = 52h
23
22
21
...
4
5
6
7
7:4
3:0
3
High Impedance
Figure 8.19 Block Erase (32K) QPI Sequence
CE#
Mode 3 0
1
2
3
SCK
Mode 0
IO[3:0]
3-byte Address
52h
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8.13 CHIP ERASE OPERATION (CER, C7h/60h)
A Chip Erase (CER) instruction erases the entire memory array. Before the execution of CER instruction, the
Write Enable Latch (WEL) must be set via a Write Enable (WREN) instruction. The WEL is automatically reset
after completion of a chip erase operation.
The CER instruction code is input via the SI. Erase operation will start immediately after CE# is pulled high,
otherwise the CER instruction will not be executed. The internal control logic automatically handles the erase
voltage and timing.
Figure 8.20 Chip Erase Sequence
CE#
0
Mode 3
1
2
3
4
5
6
7
SCK
Mode 0
SI
Instruction = C7h/60h
SO
High Impedance
Figure 8.21 Chip Erase QPI Sequence
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
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8.14 WRITE ENABLE OPERATION (WREN, 06h)
The Write Enable (WREN) instruction is used to set the Write Enable Latch (WEL) bit. The WEL bit is reset to
the write-protected state after power-up. The WEL bit must be write enabled before any write operation,
including Sector Erase, Block Erase, Chip Erase, Page Program, Program Information Row, Write Status
Register, and Write Function Register operations. The WEL bit will be reset to the write-protected state
automatically upon completion of a write operation. The WREN instruction is required before any above
operation is executed.
Figure 8.22 Write Enable Sequence
CE#
Mode 3
0
1
2
3
4
5
6
7
SCK
Mode 0
Instruction = 06h
SI
High Impedance
SO
Figure 8.23 Write Enable QPI Sequence
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
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8.15 WRITE DISABLE OPERATION (WRDI, 04h)
The Write Disable (WRDI) instruction resets the WEL bit and disables all write instructions. The WRDI
instruction is not required after the execution of a write instruction, since the WEL bit is automatically reset.
Figure 8.24 Write Disable Sequence
CE#
Mode 3
0
1
2
3
4
5
6
7
SCK
Mode 0
Instruction = 04h
SI
High Impedance
SO
Figure 8.25 Write Disable QPI Sequence
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
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8.16 READ STATUS REGISTER OPERATION (RDSR, 05h)
The Read Status Register (RDSR) instruction provides access to the Status Register. During the execution of a
program, erase or write Status Register operation, all other instructions will be ignored except the RDSR
instruction, which can be used to check the progress or completion of an operation by reading the WIP bit of
Status Register.
Figure 8.26 Read Status Register Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
11
12
13
14
15
SCK
Mode 0
SI
Instruction = 05h
tV
SO
Data Out
7
6
5
4
3
2
1
0
Figure 8.27 Read Status Register QPI Sequence
CE#
Mode 3 0
1
2
3
SCK
Mode 0
tV
IO[3:0]
05h
7:4
3:0
Data Out
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8.17 WRITE STATUS REGISTER OPERATION (WRSR, 01h)
The Write Status Register (WRSR) instruction allows the user to enable or disable the block protection and
Status Register write protection features by writing “0”s or “1”s into the non-volatile BP3, BP2, BP1, BP0, and
SRWD bits. Also WRSR instruction allows the user to disable or enable quad operation by writing “0” or “1” into
the non-volatile QE bit.
Figure 8.28 Write Status Register Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
11
12
13
14
15
2
1
0
SCK
Mode 0
Data In
SI
SO
Instruction = 01h
7
6
2
3
7:4
3:0
5
4
3
High Impedence
Figure 8.29 Write Status Register QPI Sequence
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
01h
Data In
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8.18 READ FUNCTION REGISTER OPERATION (RDFR, 48h)
The Read Function Register (RDFR) instruction provides access to the Function Register. Refer to Table 6.6
Function Register Bit Definition for more detail.
Figure 8.30 Read Function Register Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
11
12
13
14
15
SCK
Mode 0
SI
Instruction = 48h
tV
SO
Data Out
6
7
5
4
3
2
1
0
Figure 8.31 Read Function Register QPI Sequence
CE#
Mode 3 0
1
2
3
SCK
Mode 0
tV
IO[3:0]
48h
7:4
3:0
Data Out
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8.19 WRITE FUNCTION REGISTER OPERATION (WRFR, 42h)
The Write Function Register (WRFR) instruction allows the user to select top or bottom block area by writing into
TBS bit and lock or unlock the Information Row by writing “0”s (IR lock) or “1”s (IR unlock) into IRL3, IRL2, IRL1,
IRL0.
Figure 8.32 Write Function Register Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
11
12
13
14
15
2
1
0
SCK
Mode 0
Data In
SI
SO
Instruction = 42h
7
6
2
3
7:4
3:0
5
4
3
High Impedence
Figure 8.33 Write Function Register QPI Sequence
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
42h
Data In
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8.20 ENTER QUAD PERIPHERAL INTERFACE (QPI) MODE OPERATION (QIOEN, 35h; QIODI, F5h)
The Enter Quad I/O (QIOEN) instruction, 35h, enables the Flash device for QPI bus operation. Upon completion
of the instruction, all instructions thereafter will be 4-bit multiplexed input/output until a power cycle or an Exit
Quad I/O instruction is sent to device.
The Exit Quad I/O instruction, F5h, resets the device to 1-bit SPI protocol operation. To execute an Exit Quad
I/O operation, the host drives CE# low, sends the Exit Quad I/O command cycle, then drives CE# high. The
device just accepts QPI (2 clocks) command cycles.
Figure 8.34 Enter Quad Peripheral Interface (QPI) Mode Sequence
CE#
Mode 3
0
1
2
3
4
5
6
7
SCK
Mode 0
Instruction = 35h
SI
High Impedance
SO
Figure 8.35 Exit Quad Peripheral Interface (QPI) Mode Sequence
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
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8.21 PROGRAM/ERASE SUSPEND & RESUME
The device allows the interruption of Sector-Erase, Block-Erase or Page-Program operations to conduct other
operations. 75h/B0h command for suspend and 7Ah/30h for resume will be used. (SPI/QPI all acceptable)
Function Register bit2 (PSUS) and bit3 (ESUS) are used to check whether or not the device is in suspend mode.
Suspend to read ready timing: 100µs.
Resume to another suspend timing: 400µs (recommendation).
PROGRAM/ERASE SUSPEND DURING SECTOR-ERASE OR BLOCK-Erase (PERSUS 75h/B0h)
The Program/Erase Suspend allows the interruption of Sector Erase and Block Erase operations. After the
Program/Erase Suspend, WEL bit will be disabled, therefore only read related, resume and reset commands
can be accepted. Refer to Table 8.3 for more detail.
To execute a Program/Erase Suspend operation, the host drives CE# low, sends the Program/Erase Suspend
command cycle (75h/B0h), then drives CE# high. The Function Register indicates that the erase has been
suspended by changing the ESUS bit from “0” to “1”, but the device will not accept another command until it is
ready. To determine when the device will accept a new command, poll the WIP bit in the Status Register or wait
the specified time tSUS. When ESUS bit is issued, the Write Enable Latch (WEL) bit will be reset.
PROGRAM/ERASE SUSPEND DURING PAGE PROGRAMMING (PERSUS 75h/B0h)
The Program/Erase Suspend allows the interruption of all program operations. After the Program/Erase
Suspend command, WEL bit will be disabled, therefore only read related, resume and reset command can be
accepted. Refer to Table 8.3 for more detail.
To execute the Program/Erase Suspend operation, the host drives CE# low, sends the Program/Erase Suspend
command cycle (75h/B0h), then drives CE# high. The Function Register indicates that the programming has
been suspended by changing the PSUS bit from “0” to “1”, but the device will not accept another command until
it is ready. To determine when the device will accept a new command, poll the WIP bit in the Status Register or
wait the specified time tSUS.
PROGRAM/ERASE RESUME (PERRSM 7Ah/30h)
The Program/Erase Resume restarts the Program or Erase command that was suspended, and changes the
suspend status bit in the Function Register (ESUS or PSUS bits) back to “0”. To execute the Program/Erase
Resume operation, the host drives CE# low, sends the Program/Erase Resume command cycle (7Ah/30h), then
drives CE# high. A cycle is two nibbles long, most significant nibble first. To determine if the internal, self-timed
Write operation completed, poll the WIP bit in the Status Register, or wait the specified time tSE, tBE or tPP for
Sector Erase, Block Erase, or Page Programming, respectively. The total write time before suspend and after
resume will not exceed the uninterrupted write times tSE, tBE or tPP.
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Table 8.3 Instructions accepted during Suspend
Instruction Allowed
Operation
Suspended
Name
Hex Code
Program or Erase
NORD
03h
Read Data Bytes from Memory at Normal Read Mode
Program or Erase
FRD
0Bh
Read Data Bytes from Memory at Fast Read Mode
Program or Erase
FRDIO
BBh
Fast Read Dual I/O
Program or Erase
FRDO
3Bh
Fast Read Dual Output
Program or Erase
FRQIO
EBh
Fast Read Quad I/O
Program or Erase
FRQO
6Bh
Fast Read Quad Output
Program or Erase
FRDTR
0Dh
Fast Read DTR Mode
Program or Erase
FRDDTR
BDh
Fast Read Dual I/O DTR
Program or Erase
FRQDTR
EDh
Fast Read Quad I/O DTR
Program or Erase
RDSR
05h
Read Status Register
Program or Erase
RDFR
48h
Read Function Register
Program or Erase
PERRSM
7Ah/30h
Resume program/erase
Program or Erase
RDID
Program or Erase
SRPV
C0
Set Read Parameters (Volatile)
Program or Erase
RDJDID
9Fh
Read Manufacturer and Product ID by JEDEC ID Command
Program or Erase
RDMDID
90h
Read Manufacturer and Device ID
Program or Erase
RDJDIDQ
AFh
Read JEDEC ID QPI mode
Program or Erase
RDUID
4Bh
Read Unique ID Number
Program or Erase
RDSFDP
5Ah
SFDP Read
Program or Erase
NOP
00h
No Operation
Program or Erase
RSTEN
66h
Software reset enable
Program or Erase
RST
99h
Reset (Only along with 66h)
Program or Erase
IRRD
68h
Read Information Row
ABh
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8.22 ENTER DEEP POWER DOWN (DP, B9h)
The Enter Deep Power-down (DP) instruction is for setting the device on the minimizing the power consumption
(enter into Power-down mode). During this mode, standby current is reduced from Isb1 to Isb2. While in the
Power-down mode, the device is not active and all Write/Program/Erase instructions are ignored. The instruction
is initiated by driving the CE# pin low and shifting the instruction code into the device. The CE# pin must be
driven high after the instruction has been latched, or Power-down mode will not engage. Once CE# pin driven
high, the Power-down mode will be entered within the time duration of tDP. While in the Power-down mode only
the Release from Power-down/RDID instruction, which restores the device to normal operation, will be
recognized. All other instructions are ignored, including the Read Status Register instruction which is always
available during normal operation. Ignoring all but one instruction makes the Power Down state a useful
condition for securing maximum write protection. It is available in both SPI and QPI mode.
Figure 8.36 Enter Deep Power Down Mode Sequence
tDP
CE #
Mode 3 0
1
2
3
4
5
6
7
SCK
Mode 0
SI
SO
Instruction = B9h
High Impedance
Figure 8.37 Enter Deep Power Down Mode QPI Sequence
tDP
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
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8.23 RELEASE DEEP POWER DOWN (RDPD, ABh)
The Release Deep Power-down/Read Device ID instruction is a multi-purpose command. To release the device
from the Power-down mode, the instruction is issued by driving the CE# pin low, shifting the instruction code
“ABh” and driving CE# high.
Releasing the device from Power-down mode will take the time duration of tRES1 before normal operation is
restored and other instructions are accepted. The CE# pin must remain high during the tRES1 time duration. If
the Release Deep Power-down/RDID instruction is issued while an Erase, Program or Write cycle is in progress
(WIP=1) the instruction is ignored and will not have any effects on the current cycle.
Figure 8.38 Release Power Down Sequence
tRES1
CE #
Mode 3 0
1
2
3
4
5
6
7
SCK
Mode 0
SI
SO
Instruction = ABh
High Impedance
Figure 8.39 Release Power Down QPI Sequence
tRES1
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
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8.24 SET READ PARAMETERS OPERATION (SRP, C0h)
Set Read Operational Driver Strength
This device supports configurable Operational Driver Strengths in both SPI and QPI modes by setting three bits
within the Read Register (ODS0, ODS1, ODS2). To set the ODS bits the SRP operation (C0h) instruction is
required. The device’s driver strength can be reduced as low as 12.50% of full drive strength. Details regarding
the driver strength can be found in Table 6.11.
Note: The default driver strength is set to 50%
Figure 8.40 Set Read Parameters Sequence
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
11
12
13
14
15
2
1
0
SCK
Mode 0
Data In
SI
SO
Instruction = C0h
7
6
2
3
7:4
3:0
5
4
3
High Impedence
Figure 8.41 Set Read Parameters QPI Sequence
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
C0h
Data In
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Read with “8/16/32/64-Byte Wrap Around”
The device is capable of burst read with wrap around in both SPI and QPI mode. The size of burst length is
configurable by using P0, P1, and P2 bits in Read Register. P2 bit (Wrap enable) enables the burst mode
feature. P0 and P1 define the size of burst. Burst lengths of 8, 16, 32, and 64 bytes are supported. By default,
address increases by one up through the entire array. By setting the burst length, the data being accessed can
be limited to the length of burst boundary within a 256 byte page. The first output will be the data at the initial
address which is specified in the instruction. Following data will come out from the next address within the burst
boundary. Once the address reaches the end of boundary, it will automatically move to the first address of the
boundary. CE# high will terminate the command.
For example, if burst length of 8 and initial address being applied is 0h, following byte output will be from
address 00h and continue to 01h,..,07h, 00h, 01h… until CE# terminates the operation. If burst length of 8 and
initial address being applied is FEh(254d), following byte output will be from address FEh and continue to FFh,
F8h, F9h, FAh, FBh, FCh, FDh, and repeat from FEh until CE# terminates the operation.
The command, “SET READ PARAMETERS OPERATION (C0h)”, is used to configure the burst length. If the
following data input is one of “00h”,”01h”,”02h”, and ”03h”, the device will be in default operation mode. It will be
continuous burst read of the whole array. If the following data input is one of “04h”,”05h”,”06h”, and ”07h”, the
device will set the burst length as 8,16,32 and 64 respectively.
To exit the burst mode, another “C0h” command is necessary to set P2 to 0. Otherwise, the burst mode will be
retained until either power down or reset operation. To change burst length, another “C0h” command should be
executed to set P0 and P1 (Detailed information in Table 6.8 Burst Length Data). All read commands operate in
burst mode once the Read Register is set to enable burst mode.
Refer to Figures 8.40 and 8.41 for instruction sequence.
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8.25 READ PRODUCT IDENTIFICATION (RDID, ABh)
The Release from Power-down/Read Device ID instruction is a multi-purpose instruction. It can support both SPI
and QPI modes. The Read Product Identification (RDID) instruction is for reading out the old style of 8-bit
Electronic Signature, whose values are shown as table of Product Identification.
The RDID instruction code is followed by three dummy bytes, each bit being latched-in on SI during the rising
SCK edge. Then the Device ID is shifted out on SO with the MSB first, each bit been shifted out during the
falling edge of SCK. The RDID instruction is ended by driving CE# high. The Device ID (ID7-ID0) outputs
repeatedly if additional clock cycles are continuously sent to SCK while CE# is at low.
Table 8.4 Product Identification
Manufacturer ID
(MF7-MF0)
ISSI Serial Flash
9Dh
Instruction
ABh
90h
Device Density
Device ID (ID7-ID0)
9Fh
Memory Type + Capacity
(ID15-ID0)
32Mb
15h
6016h
64Mb
16h
6017h
Figure 8.42 Read Product Identification Sequence
CE #
Mode 3 0
1
...
7
8
9
...
31
32
33
...
39
SCK
Mode 0
SI
Instruction = ABh
3 Dummy Bytes
tV
SO
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Device ID
(ID7-ID0)
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Figure 8.43 Read Product Identification Sequence (QPI)
CE#
Mode 3 0
1
2
3
4
5
6
7
8
9
SCK
Mode 0
tV
IO[3:0]
ABh
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Device ID
(ID7-ID0)
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8.26 READ PRODUCT IDENTIFICATION BY JEDEC ID OPERATION (RDJDID, 9Fh; RDJDIDQ, AFh)
The JEDEC ID READ instruction allows the user to read the Manufacturer and product ID of devices. Refer to
Table 8.4 Product Identification for Manufacturer ID and Device ID. After the JEDEC ID READ command (9Fh in
SPI mode, AFh in QPI mode) is input, the Manufacturer ID is shifted out MSB first followed by the 2-byte
electronic ID (ID15-ID0) that indicates Memory Type and Capacity, one bit at a time. Each bit is shifted out
during the falling edge of SCK. If CE# stays low after the last bit of the 2-byte electronic ID, the Manufacturer ID
and 2-byte electronic ID will loop until CE# is pulled high.
Figure 8.44 Read Product Identification by JEDEC ID READ Sequence in SPI mode
CE #
Mode 3 0
1
...
7
8
9
...
15
16
17
...
23
24
25
...
31
SCK
Mode 0
SI
Instruction = 9Fh
tV
Manufacturer ID
(MF7-MF0)
SO
Capacity
(ID7-ID0)
Memory Type
(ID15-ID8)
Figure 8.45 RDJDIDQ (Read JEDEC ID in QPI Mode) Sequence
CE#
Mode 3 0
1
2
3
4
5
6
7
SCK
Mode 0
IO[3:0]
tV
AFh
7:4
3:0
MF7-MF0
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3:0
ID15-ID8
7:4
3:0
ID7-ID0
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8.27 READ DEVICE MANUFACTURER AND DEVICE ID OPERATION (RDMDID, 90h)
The Read Device Manufacturer and Device ID (RDMDID) instruction allows the user to read the Manufacturer
and product ID of devices. Refer to Table 8.4 Product Identification for Manufacturer ID and Device ID. The
RDMDID instruction code is followed by two dummy bytes and one byte address (A7~A0), each bit being
latched-in on SI during the rising edge of SCK. If one byte address is initially set as A0 = 0, then the
Manufacturer ID is shifted out on SO with the MSB first followed by the Device ID (ID7- ID0). Each bit is shifted
out during the falling edge of SCK. If one byte address is initially set as A0 = 1, then Device ID will be read first
followed by the Manufacturer ID. The Manufacturer and Device ID can be read continuously alternating between
the two until CE# is driven high.
Figure 8.46 Read Product Identification by RDMDID Read Sequence
CE #
Mode 3 0
1
...
7
8
9
...
31
32
33
...
39
40
41
...
47
SCK
Mode 0
SI
3-byte Address
Instruction = 90h
tV
Device ID
(ID7-ID0)
Manufacturer ID
(MF7-MF0)
SO
Notes:
1. ADDRESS A0 = 0, will output the 1-byte Manufacturer ID (MF7-MF0)  1-byte Device ID (ID7-ID0)
ADDRESS A0 = 1, will output the 1-byte Device ID (ID7-ID0)  1-byte Manufacturer ID (MF7-MF0)
2. The Manufacturer and Device ID can be read continuously and will alternate from one to the other until CE# pin is pulled high.
Figure 8.47 Read Product Identification by RDMDID QPI Read Sequence
CE#
Mode 3 0
1
2
3
4
5
6
7
8
9
10
11
SCK
Mode 0
tV
IO[3:0]
90h
23:20 19:16 15:12 11:8
Instruction
3-byte Address
7:4
3:0
7:4
3:0
7:4
3:0
Manufacturer Device ID
ID (MF7-MF0) (ID7-ID0)
Notes:
1. ADDRESS A0 = 0, will output the 1-byte Manufacturer ID (MF7-MF0)  1-byte Device ID (ID7-ID0)
ADDRESS A0 = 1, will output the 1-byte Device ID (ID7-ID0)  1-byte Manufacturer ID (MF7-MF0)
2. The Manufacturer and Device ID can be read continuously and will alternate from one to the other until CE# pin is pulled high.
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8.28 READ UNIQUE ID NUMBER (RDUID, 4Bh)
The Read Unique ID Number (RDUID) instruction accesses a factory-set read-only 16-byte number that is
unique to the device. The ID number can be used in conjunction with user software methods to help prevent
copying or cloning of a system. The RDUID instruction is instated by driving the CE# pin low and shifting the
instruction code (4Bh) followed by 3 address bytes and a dummy byte. After which, the 16-byte ID is shifted out
on the falling edge of SCK as shown below.
As a result, the sequence of RDUID instruction is same as FAST READ except for the instruction code. RDUID
QPI sequence is also same as FAST READ QPI except for the instruction code. Refer to the FAST READ QPI
operation.
Note: 16 bytes of data will repeat as long as CE# is low and SCK is toggling.
Figure 8.48 RDUID Sequence
CE #
Mode 3 0
1
...
7
8
9
...
31
32
33
...
39
40
41
...
47
...
SCK
Mode 0
SI
Instruction = 4Bh
3 Byte Address
Dummy Byte
tV
SO
Data Out
A[23:16]
A[15:9]
A[8:4]
A[3:0]
XXh
XXh
00h
0h Byte address
XXh
XXh
00h
1h Byte address
XXh
XXh
00h
2h Byte address
XXh
XXh
00h
…
Table 8.5 Unique ID Addressing
XXh
XXh
00h
Fh Byte address
Note: XX means “don’t care”.
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8.29 READ SFDP OPERATION (RDSFDP, 5Ah)
The Serial Flash Discoverable Parameters (SFDP) standard provides a consistent method of describing the
functions and features of serial Flash devices in a standard set of internal parameter tables. These parameters
can be interrogated by host system software to enable adjustments needed to accommodate divergent features
from multiple vendors. For more details please refer to the JEDEC Standard JESD216A (Serial Flash
Discoverable Parameters).
The sequence of issuing RDSFDP instruction is same as FAST_READ: CE# goes low  Send RDSFDP
instruction (5Ah)  Send 3 address bytes on SI pin  Send 1 dummy byte on SI pin  Read SFDP code on
SO  End RDSFDP operation by driving CE# high at any time during data out. Refer to ISSI’s Application note
for SFDP table. The data at the addresses that are not specified in SFDP table are undefined.
The sequence of RDSFDP instruction is same as FAST READ except for the instruction code. RDSFDP QPI
sequence is also same as FAST READ QPI except for the instruction code. Refer to the FAST READ QPI
operation.
Figure 8.49 RDSFDP (Read SFDP) Sequence
CE #
Mode 3 0
1
...
7
8
9
...
31
32
33
...
39
40
41
...
47
...
SCK
Mode 0
SI
Instruction = 5Ah
3 Byte Address
Dummy Byte
tV
SO
Data Out
8.30 NO OPERATION (NOP, 00h)
The No Operation command solely cancels a Reset Enable command and has no impact on any other
commands. It is available in both SPI and QPI modes. To execute a NOP, the host drives CE# low, sends the
NOP command cycle (00h), then drives CE# high.
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8.31 SOFTWARE RESET (RESET-ENABLE (RSTEN, 66h) AND RESET (RST, 99h)) AND HARDWARE RESET
The Software Reset operation is used as a system reset that puts the device in normal operating mode. During
the Reset operation, the value of volatile registers will default back to the value in the corresponding non-volatile
register. This operation consists of two commands: Reset-Enable (RSTEN) and Reset (RST). The operation
requires the Reset-Enable command followed by the Reset command. Any command other than the Reset
command after the Reset-Enable command will disable the Reset-Enable.
Execute the CE# pin low  sends the Reset-Enable command (66h), and drives CE# high. Next, the host drives
CE# low again, sends the Reset command (99h), and pulls CE# high.
Only for the dedicated parts that have the RESET# pin, Hardware Reset function is available. For all other
packages with RESET# pin option except 16-pin SOIC 300mil with additional RESET# pin option, the RESET#
pin will be solely applicable in SPI mode and when the QE bit is disabled. For 16-pin SOIC 300mil package with
additional RESET# pin option, the RESET# pin is always applicable regardless of the QE bit value. The
RESET# pin has the highest priority among all the input signals and will reset the device to its initial power-on
state regardless of the state of all other pins (CE#, IOs, SCK, and WP#).
In order to activate Hardware Reset, the RESET# pin must be driven low for a minimum period of tRESET (1µs).
Drive RESET# low for a minimum period of tRESET will interrupt any on-going internal and external operations,
1
release the device from deep power down mode , disable all input signals, force the output pin enter a state of
high impedance, and reset all the read parameters. If the RESET# pulse is driven for a period shorter than 1µs,
it may still reset the device, however the 1µs minimum period is recommended to ensure the reliable operation.
The required wait time after activating a HW Reset before the device will accept another instruction (tHWRST) is
the same as the maximum value of tSUS (100µs).
The Software/Hardware Reset during an active Program or Erase operation aborts the operation, which can
result in corrupting or losing the data of the targeted address range. Depending on the prior operation, the reset
timing may vary. Recovery from a Write operation will require more latency than recovery from other operations.
Note 1: The Status and Function Registers remain unaffected.
Figure 8.50 Software Reset Enable and Software Reset Sequence (RSTEN, 66h + RST, 99h)
CE#
Mode 3 0
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
SCK
Mode 0
SI
Instruction = 66h
Instruction = 99h
High Impedance
SO
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Figure 8.51 Software Reset Enable and Software Reset QPI Sequence (RSTEN, 66h + RST, 99h)
CE#
Mode 3 0
0
1
1
SCK
Mode 0
IO[3:0]
99h
66h
8.32 SECURITY INFORMATION ROW
The security Information Row is comprised of an additional 4 x 256 bytes of programmable information. The
security bits can be reprogrammed by the user. Any program security instruction issued while an erase, program
or write cycle is in progress is rejected without having any effect on the cycle that is in progress.
Table 8.6 Information Row Valid Address Range
Address Assignment
A[23:16]
A[15:8]
A[7:0]
IRL0 (Information Row Lock0)
00h
00h
Byte address
IRL1
00h
10h
Byte address
IRL2
00h
20h
Byte address
IRL3
00h
30h
Byte address
Bit 7~4 of the Function Register is used to permanently lock the programmable memory array.
When Function Register bit IRLx = “0”, the 256 bytes of the programmable memory array can be programmed.
When Function Register bit IRLx = “1”, the 256 bytes of the programmable memory array function as read only.
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8.33 INFORMATION ROW ERASE OPERATION (IRER, 64h)
Information Row Erase (IRER) instruction erases the data in the Information Row x (x: 0~3) array. Prior to the
operation, the Write Enable Latch (WEL) must be set via a Write Enable (WREN) instruction. The WEL bit is
automatically reset after the completion of the operation.
The sequence of IRER operation: Pull CE# low to select the device  Send IRER instruction code  Send
three address bytes  Pull CE# high. CE# should remain low during the entire instruction sequence. Once CE#
is pulled high, Erase operation will begin immediately. The internal control logic automatically handles the erase
voltage and timing. Refer to Figure 8.49 for IRER Sequence.
Figure 8.52 IRER (Information Row Erase) Sequence
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
...
28
29
30
31
1
0
SCK
Mode 0
3-byte Address
SI
SO
Instruction = 64h
23
22
21
...
3
2
High Impedance
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8.34 INFORMATION ROW PROGRAM OPERATION (IRP, 62h)
The Information Row Program (IRP) instruction allows up to 256 bytes data to be programmed into the memory
in a single operation. Before the execution of IRP instruction, the Write Enable Latch (WEL) must be enabled
through a Write Enable (WREN) instruction.
The IRP instruction code, three address bytes and program data (1 to 256 bytes) should be sequentially input.
Three address bytes has to be input as specified in the Table 8.6 Information Row Valid Address Range.
Program operation will start once the CE# goes high, otherwise the IRP instruction will not be executed. The
internal control logic automatically handles the programming voltages and timing. During a program operation,
all instructions will be ignored except the RDSR instruction. The progress or completion of the program
operation can be determined by reading the WIP bit in Status Register via a RDSR instruction. If the WIP bit is
“1”, the program operation is still in progress. If WIP bit is “0”, the program operation has completed.
If more than 256 bytes data are sent to a device, the address counter rolls over within the same page. The
previously latched data are discarded and the last 256 bytes data are kept to be programmed into the page. The
starting byte can be anywhere within the page. When the end of the page is reached, the address will wrap
around to the beginning of the same page. If the data to be programmed are less than a full page, the data of all
other bytes on the same page will remain unchanged.
Note: A program operation can alter “1”s into “0”s, but an erase operation is required to change “0”s back to “1”s.
A byte cannot be reprogrammed without first erasing the corresponding Information Row array which is one
of IR0~3.
Figure 8.53 IRP (Information Row Program) Sequence
1
...
7
8
9
...
31
32
33
...
39
...
...
2079
Mode 3 0
2072
CE #
SCK
Mode 0
SI
SO
Data In 1
3-byte Address
Instruction = 62h
23
22
...
0
7
6
...
Data In 256
0
...
7
...
0
High Impedance
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8.35 INFORMATION ROW READ OPERATION (IRRD, 68h)
The IRRD instruction is used to read memory data at up to a 133MHz clock.
The IRRD instruction code is followed by three address bytes (A23 - A0) and a dummy byte, transmitted via the
SI line, with each bit latched-in during the rising edge of SCK. Then the first data byte addressed is shifted out
on the SO line, with each bit shifted out at a maximum frequency fCT, during the falling edge of SCK.
The address is automatically incremented by one after each byte of data is shifted out. Once the address
reaches the last address of each 256 byte Information Row, the next address will not be valid and the data of
the address will be garbage data. It is recommended to repeat four times IRRD operation that reads 256 byte
with a valid starting address of each Information Row in order to read all data in the 4 x 256 byte Information
Row array. The IRRD instruction is terminated by driving CE# high (VIH).
If an IRRD instruction is issued while an Erase, Program or Write cycle is in process (WIP=1) the instruction is
ignored and will not have any effects on the current cycle.
The sequence of IRRD instruction is same as FAST READ except for the instruction code. IRRD QPI sequence
is also same as FAST READ QPI except for the instruction code. Refer to the FAST READ QPI operation.
Figure 8.54 IRRD (Information Row Read) Sequence
CE #
Mode 3 0
1
...
7
8
9
...
31
32
33
...
39
40
41
...
47
...
SCK
Mode 0
SI
Instruction = 68h
3 Byte Address
Dummy Cycles
tV
SO
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8.36 FAST READ DTR MODE OPERATION (FRDTR, 0Dh)
The FRDTR instruction is for doubling the data in and out. Signals are triggered on both rising and falling edge
of clock. The address is latched on both rising and falling edge of SCK, and data of each bit shifts out on both
rising and falling edge of SCK at a maximum frequency fC2. The 2-bit address can be latched-in at one clock,
and 2-bit data can be read out at one clock, which means one bit at the rising edge of clock, the other bit at the
falling edge of clock.
The first address byte can be at any location. The address is automatically increased to the next higher address
after each byte of data is shifted out, so the whole memory can be read out in a single FRDTR instruction. The
address counter rolls over to 0 when the highest address is reached.
The sequence of issuing FRDTR instruction is: CE# goes low  Sending FRDTR instruction code (1bit per
clock)  3-byte address on SI (2-bit per clock)  4 dummy clocks on SI  Data out on SO (2-bit per clock) 
End FRDTR operation via driving CE# high at any time during data out.
While a Program/Erase/Write Status Register cycle is in progress, FRDTR instruction will be rejected without
any effect on the current cycle.
Figure 8.55 FRDTR Sequence
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
...
19
20
21
36
...
SCK
Mode 0
3-byte Address
SI
23 22 21 20 19 18 17
...
31
35
Instruction = 0Dh
0
High Impedance
SO
CE #
22
23
24
25
26
27
28
29
30
32
33
34
SCK
SI
4 Dummy
Cycles
tV
Data Out 1
SO
Data Out 2
Data Out 3
Data Out ...
7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 4 3 2 1 0 7 6 5 ...
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FAST READ DTR QPI MODE OPERATION (FRDTR QPI, 0Dh)
The FRDTR QPI instruction utilizes all four IO lines to input the instruction code so that only two clocks are
required, while the FRDTR instruction requires that the byte-long instruction code is shifted into the device only
via IO0 line in eight clocks. In addition, subsequent address and data out are shifted in/out via all four IO lines
unlike the FRDTR instruction. Eventually this operation is same as the FRQDTR QPI, but the only different thing
is that AX mode is not available in the FRDTR QPI operation. A Quad Enable (QE) bit of Status Register must
be set to "1" before sending the FRDTR QPI instruction.
The sequence of issuing FRDTR QPI instruction is: CE# goes low  Sending FRDTR QPI instruction (4-bit per
clock)  24-bit address interleave on IO3, IO2, IO1 & IO0 (8-bit per clock)  3 dummy clocks (configurable,
default is 3 clocks)  Data out interleave on IO3, IO2, IO1 & IO0 (8-bit per clock)  End FRDTR QPI operation
by driving CE# high at any time during data out.
If the FRDTR QPI instruction is issued while a Program/Erase/Write Status Register cycle is in progress
(WIP=1), the instruction will be rejected without any effect on the current cycle.
Figure 8.56 FRDTR QPI Sequence
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
11
12
...
SCK
Mode 0
IO0
IO1
IO2
IO3
Instruction
= 0Dh
3 Dummy Cycles
3-byte Address
tV
Data Data Data Data Data
Out Out Out Out Out
4
0
20 16 12 8 4 0
4 0 4 0 4 0 4 0 4 0 ...
5
1
21 17 13 9 5 1
5 1 5 1 5 1 5 1 5 1 ...
6
2
22 18 14 10 6 2
6 2 6 2 6 2 6 2 6 2 ...
7
3
23 19 15 11 7 3
7 3 7 3 7 3 7 3 7 3 ...
Notes:
1. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
2. Sufficient dummy cycles are required to avoid I/O contention.
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8.37 FAST READ DUAL IO DTR MODE OPERATION (FRDDTR, BDh)
The FRDDTR instruction enables Double Transfer Rate throughput on dual I/O of the device in read mode. The
address (interleave on dual I/O pins) is latched on both rising and falling edge of SCK, and the data (interleave
on dual I/O pins) shift out on both rising and falling edge of SCK at a maximum frequency fT2. The 4-bit address
can be latched-in at one clock, and 4-bit data can be read out at one clock, which means two bits at the rising
edge of clock, the other two bits at the falling edge of clock.
The first address byte can be at any location. The address is automatically increased to the next higher address
after each byte of data is shifted out, so the whole memory can be read out with a single FRDDTR instruction.
The address counter rolls over to 0 when the highest address is reached. Once writing FRDDTR instruction, the
following address/dummy/data out will perform as 4-bit instead of previous 1-bit.
The sequence of issuing FRDDTR instruction is: CE# goes low  Sending FRDDTR instruction (1-bit per clock)
 24-bit address interleave on IO1 & IO0 (4-bit per clock)  2 dummy clocks (configurable default is 2 clocks)
on IO1 & IO0  Data out interleave on IO1 & IO0 (4-bit per clock)  End FRDDTR operation via pulling CE#
high at any time during data out (Please refer to Figure 8.57 for 2 x I/O Double Transfer Rate Read Mode
Timing Waveform).
If AXh (where X is don’t care) is input for the mode bits during dummy cycles, the device will enter AX read
operation mode which enables subsequent FRDDTR execution skips command code. It saves cycles as
described in Figure 8.58. When the code is different from AXh, the device exits the AX read operation. After
finishing the read operation, device becomes ready to receive a new command. Since the number of dummy
cycles and AX bit cycles are same in this case, X should be Hi-Z to avoid I/O contention.
If the FRDDTR instruction is issued while a Program/Erase/Write Status Register cycle is in progress (WIP=1),
the instruction will be rejected without any effect on the current cycle.
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Figure 8.57 FRDDTR Sequence (with command decode cycles)
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
...
13
14
SCK
Mode 0
3-byte Address
SI
Instruction = BDh
22 20 18 16 14 12 10
2 Dummy Cycles
...
0 6 4
Mode Bits
High Impedance
SO
23 21 19 17 15 13 11
...
1 7 5
CE #
15
16
17
18
19
20
21
22
23
24
25
26
27
28
...
SCK
tV
SI
2 0
Data Out
Data Out
Data Out
Data Out
Data Out
Data Out
6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0 6 4 2 0 6 4 ...
Mode Bits
SO
3 1
7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 3 1 7 5 ...
Notes:
1. If the mode bits=AXh (where X is don’t care), it can execute the AX read mode (without command). When the
mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
3. Since the number of dummy cycles and AX bit cycles are same in the above Figure, X should be Hi-Z to avoid I/O
contention.
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Figure 8.58 FRDDTR AX Read Sequence (without command decode cycles)
CE #
Mode 3 0
1
2
...
6
7
8
9
10
11
12
13
14
15
...
SCK
Mode 0
2 Dummy Cycles
tV
3-byte Address
SI
22 20 18 16 14 12 10
...
0 6 4 2 0
Data Out
Data Out
Data Out
6 4 2 0 6 4 2 0 6 4 2 0 6 4 ...
Mode Bits
SO
23 21 19 17 15 13 11
...
1 7 5 3 1
7 5 3 1 7 5 3 1 7 5 3 1 7 5 ...
Notes:
1. If the mode bits=AXh (where X is don’t care), it will keep executing the AX read mode (without command). When
the mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
3. Since the number of dummy cycles and AX bit cycles are same in the above Figure, X should be Hi-Z to avoid I/O
contention.
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8.38 FAST READ QUAD IO DTR MODE OPERATION (FRQDTR, EDh)
The FRQDTR instruction enables Double Transfer Rate throughput on quad I/O of the device in read mode. A
Quad Enable (QE) bit of Status Register must be set to "1" before sending the FRQDTR instruction. The
address (interleave on 4 I/O pins) is latched on both rising and falling edge of SCK, and data (interleave on 4 I/O
pins) shift out on both rising and falling edge of SCK at a maximum frequency fQ2. The 8-bit address can be
latched-in at one clock, and 8-bit data can be read out at one clock, which means four bits at the rising edge of
clock, the other four bits at the falling edge of clock.
The first address byte can be at any location. The address is automatically increased to the next higher address
after each byte data is shifted out, so the whole memory can be read out with a single FRQDTR instruction. The
address counter rolls over to 0 when the highest address is reached. Once writing FRQDTR instruction, the
following address/dummy/data out will perform as 8-bit instead of previous 1-bit.
The sequence of issuing FRQDTR instruction is: CE# goes low  Sending FRQDTR instruction (1-bit per clock)
 24-bit address interleave on IO3, IO2, IO1 & IO0 (8-bit per clock)  3 dummy clocks (configurable, default is
3 clocks)  Data out interleave on IO3, IO2, IO1 & IO0 (8-bit per clock)  End FRQDTR operation by driving
CE# high at any time during data out.
If AXh (where X is don’t care) is input for the mode bits during dummy cycles, the device will enter AX read
operation mode which enables subsequent FRQDTR execution skips command code. It saves cycles as
described in Figure 8.60. When the code is different from AXh, the device exits the AX read operation. After
finishing the read operation, device becomes ready to receive a new command.
If the FRQDTR instruction is issued while a Program/Erase/Write Status Register cycle is in progress (WIP=1),
the instruction will be rejected without any effect on the current cycle.
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Figure 8.59 FRQDTR Sequence (with command decode cycles)
CE #
Mode 3 0
1
2
3
4
5
7
6
8
9
10
11
12
SCK
Mode 0
3-byte Address
IO0
Instruction = EDh
3 Dummy Cycles
20 16 12 8 4 0 4 0
High Impedance
IO1
21 17 13 9 5 1 5 1
IO2
22 18 14 10 6 2 6 2
IO3
23 19 15 11 7 3 7 3
Mode Bits
CE #
13
14
15
16
17
18
19
20
21
22
23
24
25
26
...
SCK
Data Data Data Data Data Data Data Data Data Data Data Data Data
tV Out Out Out Out Out Out Out Out Out Out Out Out Out
IO0
4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 4 0 ...
IO1
5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 5 1 ...
IO2
6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 6 2 ...
IO3
7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 7 3 ...
Notes:
1. If the mode bits=AXh (where X is don’t care), it can execute the AX read mode (without command). When the
mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
3. Sufficient dummy cycles are required to avoid I/O contention. If the number of dummy cycles and AX bit cycles
are same, then X should be Hi-Z.
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Figure 8.60 FRQDTR AX Read Sequence (without command decode cycles)
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
11
12
...
SCK
Mode 0
3-byte Address
IO0
IO1
IO2
IO3
3 Dummy Cycles
Data Data Data Data Data Data Data
tV Out Out Out Out Out Out Out
20 16 12 8 4 0 4 0
4 0 4 0 4 0 4 0 4 0 4 0 4 0 ...
21 17 13 9 5 1 5 1
5 1 5 1 5 1 5 1 5 1 5 1 5 1 ...
22 18 14 10 6 2 6 2
6 2 6 2 6 2 6 2 6 2 6 2 6 2 ...
23 19 15 11 7 3 7 3
7 3 7 3 7 3 7 3 7 3 7 3 7 3 ...
Mode Bits
Notes:
1. If the mode bits=AXh (where X is don’t care), it will keep executing the AX read mode (without command). When
the mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
3. Sufficient dummy cycles are required to avoid I/O contention. If the number of dummy cycles and AX bit cycles
are same, then X should be Hi-Z.
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FAST READ QUAD IO DTR QPI MODE OPERATION (FRQDTR QPI, EDh)
The FRQDTR QPI instruction utilizes all four IO lines to input the instruction code so that only two clocks are
required, while the FRQDTR instruction requires that the byte-long instruction code is shifted into the device
only via IO0 line in eight clocks. As a result, 6 command cycles will be reduced by the FRQDTR QPI instruction.
In addition, subsequent address and data out are shifted in/out via all four IO lines like the FRQDTR instruction.
In fact, except for the command cycle, the FRQDTR QPI operation is exactly same as the FRQDTR. A Quad
Enable (QE) bit of Status Register must be set to "1" before sending the FRQDTR QPI instruction.
The sequence of issuing FRQDTR QPI instruction is: CE# goes low  Sending FRQDTR QPI instruction (4-bit
per clock)  24-bit address interleave on IO3, IO2, IO1 & IO0 (8-bit per clock)  3 dummy clocks (configurable,
default is 3 clocks)  Data out interleave on IO3, IO2, IO1 & IO0 (8-bit per clock)  End FRQDTR QPI
operation by driving CE# high at any time during data out.
If AXh (where X is don’t care) is input for the mode bits during dummy cycles, the device will enter AX read
operation mode which enables subsequent FRQDTR QPI execution skips command code. It saves cycles as
described in Figure 8.60. When the code is different from AXh, the device exits the AX read operation. After
finishing the read operation, device becomes ready to receive a new command.
If the FRQDTR QPI instruction is issued while a Program/Erase/Write Status Register cycle is in progress
(WIP=1), the instruction will be rejected without any effect on the current cycle.
Figure 8.61 FRQDTR QPI Sequence (with command decode cycles)
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
11
12
...
SCK
Mode 0
IO0
IO1
IO2
IO3
Instruction
= EDh
3 Dummy Cycles
3-byte Address
tV
Data Data Data Data Data
Out Out Out Out Out
4
0
20 16 12 8 4 0 4 0
4 0 4 0 4 0 4 0 4 0 ...
5
1
21 17 13 9 5 1 5 1
5 1 5 1 5 1 5 1 5 1 ...
6
2
22 18 14 10 6 2 6 2
6 2 6 2 6 2 6 2 6 2 ...
7
3
23 19 15 11 7 3 7 3
7 3 7 3 7 3 7 3 7 3 ...
Mode Bits
Notes:
1. If the mode bits=AXh (where X is don’t care), it can execute the AX read mode (without command). When the
mode bits are different from AXh, the device exits the AX read operation.
2. Number of dummy cycles depends on clock speed. Detailed information in Table 6.10 Read Dummy Cycles.
3. Sufficient dummy cycles are required to avoid I/O contention. If the number of dummy cycles and AX bit cycles
are same, then X should be Hi-Z.
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8.39 SECTOR LOCK/UNLOCK FUNCTIONS
SECTOR UNLOCK OPERATION (SECUNLOCK, 26h)
The Sector Unlock command allows the user to select a specific sector to allow program and erase operations.
This instruction is effective when the blocks are designated as write-protected through the BP0, BP1, BP2, and
BP3 bits in the Status Register. Only one sector can be enabled at any time. To enable a different sector, a
previously enabled sector must be disabled by executing a Sector Lock command. The instruction code is
followed by a 24-bit address specifying the target sector, but A0 through A11 are not decoded. The remaining
sectors within the same block remain as read-only.
Figure 8.62 Sector Unlock Sequence
CE #
Mode 3 0
1
2
3
4
5
6
7
8
9
10
...
28
29
30
31
1
0
SCK
Mode 0
3-byte Address
SI
SO
Instruction = 26h
23
22
21
...
4
5
6
7
7:4
3:0
3
2
High Impedance
Figure 8.63 Sector Unlock QPI Sequence
CE#
Mode 3 0
1
2
3
SCK
Mode 0
Instruction
IO[3:0]
26h
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SECTOR LOCK OPERATION (SECLOCK, 24h)
The Sector Lock command relocks a sector that was previously unlocked by the Sector Unlock command. The
instruction code does not require an address to be specified, as only one sector can be enabled at a time. The
remaining sectors within the same block remain in read-only mode.
Figure 8.64 Sector Lock Sequence
CE#
Mode 3
0
1
2
3
4
5
6
7
SCK
Mode 0
Instruction = 24h
SI
High Impedance
SO
Figure 8.65 Sector Lock QPI Sequence
CE#
Mode 3 0
1
SCK
Mode 0
IO[3:0]
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9. ELECTRICAL CHARACTERISTICS
9.1 ABSOLUTE MAXIMUM RATINGS
(1)
Storage Temperature
Surface Mount Lead Soldering Temperature
-65°C to +150°C
Standard Package
240°C 3 Seconds
Lead-free Package
260°C 3 Seconds
Input Voltage with Respect to Ground on All Pins
-0.5V to VCC + 0.5V
All Output Voltage with Respect to Ground
-0.5V to VCC + 0.5V
VCC
-0.5V to +6.0V
Note:
1. Applied conditions greater than those listed in “Absolute Maximum Ratings” may cause permanent damage to
the device. This is a stress rating only and functional operation of the device at these or any other conditions
above those indicated in the operational sections of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect reliability.
9.2 OPERATING RANGE
Part Number
IS25LP064/032A/B
Operating Temperature (Extended Grade E)
-40°C to 105°C
Operating Temperature (Extended+ Grade E1)
-40°C to 125°C
Operating Temperature (Automotive Grade A1)
-40°C to 85°C
Operating Temperature (Automotive Grade A2)
-40°C to 105°C
Operating Temperature (Automotive Grade A3)
-40°C to 125°C
VCC Power Supply
2.3V (VMIN) – 3.6V (VMAX); 3.0V (Typ)
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9.3 DC CHARACTERISTICS
(Under operating range)
Symbol
ICC1
Typ(2)
Max
NORD at 50MHz,
4
9
FRD Single at 133MHz
6
8
FRD Dual at 133MHz
8
10
FRD Quad at 133MHz
10
13
Parameter
VCC Active Read current
Condition
(3)
Min
FRD Quad at 84MHz
8
10
FRD Quad at 104MHz
9
11
FRD Single DDR at 66MHz
6
8
FRD Dual DDR at 66MHz
8
10
Units
mA
FRD Quad DDR at 66MHz
10
13
ICC2
VCC Program Current
CE# = VCC
25
30
ICC3
VCC WRSR Current
CE# = VCC
25
30
ICC4
VCC Erase Current (4K/32K/64K)
CE# = VCC
25
30
ICC5
VCC Erase Current (CE)
CE# = VCC
25
30
ISB1
VCC Standby Current CMOS
CE# = VCC, CE#, RESET#(4) = VCC
10
50
µA
5
20
µA
ISB2
Deep power down current
mA
(4)
CE# = VCC, CE#, RESET#
= VCC
(5)
ILI
Input Leakage Current
VIN = 0V to VCC
±1
µA
ILO
Output Leakage Current
VIN = 0V to VCC
±1(5)
µA
(1)
Input Low Voltage
-0.5
0.3VCC
V
(1)
VIH
Input High Voltage
0.7VCC
VCC + 0.3
V
VOL
Output Low Voltage
IOL = 100 µA
0.2
V
VOH
Output High Voltage
IOH = -100 µA
VIL
VCC - 0.2
V
Notes:
1. Maximum DC voltage on input or I/O pins is VCC + 0.5V. During voltage transitions, input or I/O pins may
overshoot VCC by +2.0V for a period of time not to exceed 20ns. Minimum DC voltage on input or I/O pins is -0.5V.
During voltage transitions, input or I/O pins may undershoot GND by -2.0V for a period of time not to exceed 20ns.
2. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at
VCC = VCC (Typ), TA=25°C.
3. Outputs are unconnected during reading data so that output switching current is not included.
4. Only for the additional RESET# pin on 16-pin SOIC 300mil package.
5. The Max of ILI and ILO for the additional RESET# pin on 16-pin SOIC 300mil package is ±2 µA.
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9.4 AC MEASUREMENT CONDITIONS
Symbol
CL
Parameter
Min
Max
Units
Load Capacitance up to 104MHz
30
pF
Load Capacitance up to 133MHz
15
pF
5
ns
TR,TF
Input Rise and Fall Times
VIN
Input Pulse Voltages
0.2VCC to 0.8VCC
V
VREFI
Input Timing Reference Voltages
0.3VCC to 0.7VCC
V
VREFO
Output Timing Reference Voltages
0.5VCC
V
Figure 9.1 Output test load & AC measurement I/O Waveform
0.8VCC
Input
1.8k
VCC/2
AC
Measurement
Level
0.2VCC
OUTPUT PIN
1.2k
15/30pf
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9.5 AC CHARACTERISTICS
(Under operating range, refer to section 9.4 for AC measurement conditions)
Symbol
Min
(1)
tCLCH
(1)
tCHCL
SCK Rise Time (peak to peak)
0.1
V/ns
SCK Fall Time ( peak to peak)
0.1
V/ns
tCKH
SCK High Time
tCKL
SCK Low Time
tCEH
CE# High Time
7
ns
tCS
CE# Setup Time
6
ns
tCH
CE# Hold Time
6
ns
fCT
fC2, fT2, fQ2
fC
tDS
Data In Setup Time
tDH
Data in Hold Time
tV
Output Valid
tOH
For read mode
For others
For read mode
For others
Normal Mode
DTR Mode
Normal Mode
DTR Mode
Max
Units
0
133
MHz
0
66
MHz
0
50
MHz
45% fC
ns
45% fCT/C2/T2/Q2
45% fC
ns
45% fCT/C2/T2/Q2
2
ns
1.5
2
ns
1.5
@ 133MHz (CL = 15pF)
7
@ 104MHz (CL = 30pF)
8
Output Hold Time
(1)
Typ
(3)
Parameter
Clock Frequency for fast read mode:
SPI, Dual, Dual I/O, Quad I/O, and QPI.
Clock Frequency for fast read DTR:
SPI DTR, Dual DTR, Dual I/O DTR, Quad I/O DTR, and
QPI DTR.
Clock Frequency for read mode SPI
2
ns
ns
tDIS
Output Disable Time
tHLCH
HOLD Active Setup Time relative to SCK
5
ns
tCHHH
HOLD Active Hold Time relative to SCK
5
ns
tHHCH
HOLD Not Active Setup Time relative to SCK
5
ns
tCHHL
HOLD Not Active Hold Time relative to SCK
5
tLZ
8
ns
ns
(1)
HOLD to Output Low Z
12
ns
(1)
HOLD to Output High Z
12
ns
tHZ
tEC
Sector Erase Time (4Kbyte)
45
300
ms
Block Erase Time (32Kbyte)
0.15
0.75
s
s
Block Erase time (64Kbyte)
Chip Erase Time
tPP
0.3
1.5
32Mb
8
23
64Mb
16
45
0.2
1.0
Page Program Time
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Symbol
tRES1
(1)
(1)
tDP
tW
Parameter
Min
Units
Release deep power down
3
µs
Deep power down
3
µs
tSRST
tRESET
2
Suspend to read ready
(1)
(1),(4)
tHWRST
(1),(4)
(3)
Max
Write Status Register time
(1)
tSUS
Software Reset recovery time
RESET# pin low pulse width
Hardware Reset recovery time
Typ
1
15
ms
100
µs
100
µs
(2)
µs
100
µs
Notes:
1. These parameters are characterized and not 100% tested.
2. If the RESET# pulse is driven for a period shorter than 1µs (tRESET minimum), it may still reset the device, however
the 1µs minimum period is recommended to ensure reliable operation.
3. Typical values are included for reference only and are not guaranteed or tested. Typical values are measured at
VCC = VCC (Typ), TA=25°C.
4. Only applicable to the parts that have the RESET# pin option.
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9.6 SERIAL INPUT/OUTPUT TIMING
Figure 9.2 SERIAL INPUT/OUTPUT TIMING (Normal Mode)
(1)
tCEH
CE#
tCH
tCS
tCKL
tCKH
SCK
tDS
SI
tDH
VALID IN
VALID IN
tOH
tV
SO
HI-Z
tDIS
HI-Z
VALID OUTPUT
Note1. For SPI Mode 0 (0,0)
Figure 9.3 SERIAL INPUT/OUTPUT TIMING (DTR Mode)
(1)
tCEH
CE#
tCH
tCS
tCKH
SCK
tDS
SI
tCKL
tDH
VALID IN
VALID IN
VALID IN
tV
SO
HI-Z
tV
Output
tOH
Output
tDIS
HI-Z
Note1. For SPI Mode 0 (0,0)
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Figure 9.4 HOLD TIMING
CE#
tHLCH
tCHHL
tHHCH
SCK
tCHHH
tHZ
tLZ
SO
SI
HOLD#
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9.7 POWER-UP AND POWER-DOWN
At Power-up and Power-down, the device must be NOT SELECTED until Vcc reaches at the right level. (Adding
a simple pull-up resistor on CE# is recommended.)
Power up timing
VCC
VCC(max)
All Write Commands are Rejected
Chip Selection Not Allowed
VCC(min)
Reset State
tVCE
Read Access Allowed
V(write inhibit)
Device fully
accessible
tPUW
Symbol
Min.
Vcc(min) to CE# Low
1
(1)
Power-up time delay to write instruction
1
tVCE
tPUW
VWI
Parameter
(1)
(1)
Write Inhibit Voltage
Max
Unit
ms
10
ms
2.1
V
Note: These parameters are characterized and not 100% tested.
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9.8 PROGRAM/ERASE PERFORMANCE
Parameter
Typ
Max
Unit
Sector Erase Time (4Kbyte)
45
300
ms
Block Erase Time (32Kbyte)
Block Erase Time (64Kbyte)
0.15
0.75
s
0.3
1.5
s
8
23
16
45
0.2
1.0
ms
8
40
µs
Chip Erase Time
32Mb
64Mb
Page Programming Time
Byte Program
s
Note: These parameters are characterized and not 100% tested.
9.9 RELIABILITY CHARACTERISTICS
Parameter
Min
Unit
Test Method
Endurance
100,000
Cycles
JEDEC Standard A117
Data Retention
20
Years
JEDEC Standard A103
ESD – Human Body Model
2,000
Volts
JEDEC Standard A114
ESD – Machine Model
200
Volts
JEDEC Standard A115
Latch-Up
100 + ICC1
mA
JEDEC Standard 78
Note: These parameters are characterized and not 100% tested.
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10. PACKAGE TYPE INFORMATION
10.1 8-PIN JEDEC 208MIL BROAD SMALL OUTLINE INTEGRATED CIRCUIT (SOIC) PACKAGE (B)
SIDE VIEW
TOP VIEW
0.48
0.35
5.38
5.18
1.27 BSC
5.38
5.18
2.16
1.75
0.25
0.05
8.10
7.70
END VIEW
5.33
5.13
5.38
5.18
0.25
0.19
0.80
0.50
Note: All dimensions are in millimeters. Lead co-planarity is 0.1mm.
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10.2 8-CONTACT ULTRA-THIN SMALL OUTLINE NO-LEAD (WSON) PACKAGE 6X5MM (K)
Top View
Side View
5.00
BSC
0.25
0.19
6.00
BSC
0.80
0.70
Pin 1
Bottom View
4.00
1.27
BSC
3.40
0.48
0.35
0.75
0.50
Note: All dimensions are in millimeters. Lead co-planarity is 0.08mm.
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10.3 8-CONTACT ULTRA-THIN SMALL OUTLINE NO-LEAD (WSON) PACKAGE 8X6MM (L)
SYMBOL
DIMENSION IN MM
MIN.
NOM
MAX
A
0.70
0.75
0.80
A1
0.00
0.02
0.05
A2
---
0.20
---
D
7.90
8.00
8.10
E
5.90
6.00
6.10
D1
4.65
4.70
4.75
E1
4.55
4.60
4.65
e
---
1.27
---
b
0.35
0.40
0.48
L
0.4
0.50
0.60
Note: All dimensions are in millimeters. Lead co-planarity is 0.08mm.
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E
E1
10.4 8-PIN 208MIL VSOP PACKAGE (F)
•
L
D
10°(4x)
A2
A1
A
c
e
b
Symbols
A
Min
-
Typ
-
Max
1
A1
0.05
0.1
0.15
A2
0.75
0.8
0.85
b
0.35
0.42
0.48
c
-
.127 REF
-
D
5.18
5.28
5.38
E
7.7
7.9
8.1
E1
5.18
5.28
5.38
e
-
1.27
-
L
0.5
0.65
0.8
y
-
-
0.1
¸
0°
-
8°
Note: All dimensions are in millimeters. Lead co-planarity is 0.1mm.
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10.5 16-LEAD PLASTIC SMALL OUTLINE PACKAGE (300 MILS BODY WIDTH) (M)
Millimeters
10.65
7.6
10.0
9
7.4
16
10.1
10.5
0.23
0.32
Detail A
1
8
2.25
2.4
2.35
2.65
Detail A
1.27
0.1
0.33
0.51
0.1
0.3
0.4
1.27
00
80
Note: All dimensions are in millimeters. Lead co-planarity is 0.08mm.
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10.6 24-BALL THIN PROFILE FINE PITCH BGA 6X8MM (G)
D
4
3
2
1
A1 Corner
Index Area
A
B
E
E1
C
e
D
E
F
(TOP VIEW)
A1 Corner
Index Area
nX Øb
e
D1
(BOTTOM VIEW)
A3
A
A2
A1
SYMBOL
A
A1
A2
A3
D
E
D1
E1
e
b
DIMENSIONS (MM)
MIN
NOM
MAX
1.20
0.27
0.37
0.21 REF
0.54 REF
6 BSC
8 BSC
3.00
5.00
1.00
0.40
-
Note: All dimensions are in millimeters. Lead co-planarity is 0.08mm.
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11. ORDERING INFORMATION- Valid Part Numbers
IS25LP064A -
J
B
L
E
TEMPERATURE RANGE
E = Extended (-40°C to +105°C)
E1 = Extended+ (-40°C to +125°C)
A1 = Automotive Grade (-40°C to +85°C)
A2 = Automotive Grade (-40°C to +105°C)
A3 = Automotive Grade (-40°C to +125°C)
PACKAGING CONTENT
L = RoHS compliant
PACKAGE Type(1),(2)
B = 8-pin SOIC 208mil
K = 8-contact WSON 6x5mm
L = 8-contact WSON 8x6mm
F = 8-pin VSOP 208mil
M = 16-pin SOIC 300mil
G = 24-ball TFBGA 6x8mm
W = KGD (Call Factory)
Option
J = Standard
R = additional RESET# pin option for 16-pin SOIC 300mil
Q = QE bit set to 1
P = Additional RESET# pin and QE bit set to 1 for 16-pin
SOIC 300mil
SPEED
A = 133MHz (NOT Support DTR)
B = 66MHz DTR Support
Density
064 = 64 Megabit
032 = 32 Megabit
BASE PART NUMBER
IS = Integrated Silicon Solution Inc.
25LP = FLASH, 2.3V ~ 3.6V, QPI
Note:
1. Call Factory for other package options available.
2. For the RESET# pin option instead of HOLD# pin, call Factory.
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Density
64Mb
Frequency (MHz)
133
Order Part Number(1)
Package(2)
IS25LP064A-JBLE
IS25LP064A-JBLE1
8-pin SOIC 208mil
IS25LP064A-JKLE
IS25LP064A-JKLE1
8-contact WSON 6x5mm
IS25LP064A-JLLE
IS25LP064A-JLLE1
8-contact WSON 8x6mm
IS25LP064A-JFLE
IS25LP064A-JFLE1
8-pin VSOP 208mil
IS25LP064A-JMLE
IS25LP064A-JMLE1
16-pin SOIC 300mil
IS25LP064A-JGLE
IS25LP064A-JGLE1
24-ball TFBGA 6x8mm
IS25LP064A-QBLE
IS25LP064A-QBLE1
8-pin SOIC 208mil
IS25LP064A-QKLE
IS25LP064A-QKLE1
8-contact WSON 6x5mm
IS25LP064A-QLLE
IS25LP064A-QLLE1
8-contact WSON 8x6mm
IS25LP064A-QFLE
IS25LP064A-QFLE1
8-pin VSOP 208mil
IS25LP064A-QMLE
IS25LP064A-QMLE1
16-pin SOIC 300mil
IS25LP064A-QGLE
IS25LP064A-QGLE1
24-ball TFBGA 6x8mm
IS25LP064A-RMLE
IS25LP064A-RMLE1
16-pin SOIC 300mil(3)
IS25LP064A-PMLE
IS25LP064A-PMLE1
16-pin SOIC 300mil(3)
IS25LP064A-JBLA*
8-pin SOIC 208mil (Call Factory)
IS25LP064A-JKLA*
8-contact WSON 6x5mm (Call Factory)
IS25LP064A-JLLA*
8-contact WSON 8x6mm (Call Factory)
IS25LP064A-JFLA*
8-pin VSOP 208mil (Call Factory)
IS25LP064A-JMLA*
16-pin SOIC 300mil (Call Factory)
IS25LP064A-JGLA*
24-ball TFBGA 6x8mm (Call Factory)
IS25LP064A-QBLA*
8-pin SOIC 208mil (Call Factory)
IS25LP064A-QKLA*
8-contact WSON 6x5mm (Call Factory)
IS25LP064A-QLLA*
8-contact WSON 8x6mm (Call Factory)
IS25LP064A-QFLA*
8-pin VSOP 208mil (Call Factory)
IS25LP064A-QMLA*
16-pin SOIC 300mil (Call Factory)
IS25LP064A-QGLA*
24-ball TFBGA 6x8mm (Call Factory)
IS25LP064A-RMLA*
16-pin SOIC 300mil(3)
IS25LP064A-PMLA*
16-pin SOIC 300mil(3)
IS25LP064A-JWLE
KGD (Call Factory)
Integrated Silicon Solution, Inc.- www.issi.com
Rev. 00C
05/21/2015
96
IS25LP064/032A/B
Density
64Mb
Frequency (MHz)
DTR
66
Order Part Number(1)
Package(2)
IS25LP064B-JBLE
IS25LP064B-JBLE1
8-pin SOIC 208mil
IS25LP064B-JKLE
IS25LP064B-JKLE1
8-contact WSON 6x5mm
IS25LP064B-JLLE
IS25LP064B-JLLE1
8-contact WSON 8x6mm
IS25LP064B-JFLE
IS25LP064B-JFLE1
8-pin VSOP 208mil
IS25LP064B-JMLE
IS25LP064B-JMLE1
16-pin SOIC 300mil
IS25LP064B-JGLE
IS25LP064B-JGLE1
24-ball TFBGA 6x8mm
IS25LP064B-QBLE
IS25LP064B-QBLE1
8-pin SOIC 208mil
IS25LP064B-QKLE
IS25LP064B-QKLE1
8-contact WSON 6x5mm
IS25LP064B-QLLE
IS25LP064B-QLLE1
8-contact WSON 8x6mm
IS25LP064B-QFLE
IS25LP064B-QFLE1
8-pin VSOP 208mil
IS25LP064B-QMLE
IS25LP064B-QMLE1
16-pin SOIC 300mil
IS25LP064B-QGLE
IS25LP064B-QGLE1
24-ball TFBGA 6x8mm
IS25LP064B-RMLE
IS25LP064B-RMLE1
16-pin SOIC 300mil(3)
IS25LP064B-PMLE
IS25LP064B-PMLE1
16-pin SOIC 300mil(3)
IS25LP064B-JBLA*
8-pin SOIC 208mil (Call Factory)
IS25LP064B-JKLA*
8-contact WSON 6x5mm (Call Factory)
IS25LP064B-JLLA*
8-contact WSON 8x6mm (Call Factory)
IS25LP064B-JFLA*
8-pin VSOP 208mil (Call Factory)
IS25LP064B-JMLA*
16-pin SOIC 300mil (Call Factory)
IS25LP064B-JGLA*
24-ball TFBGA 6x8mm (Call Factory)
IS25LP064B-QBLA*
8-pin SOIC 208mil (Call Factory)
IS25LP064B-QKLA*
8-contact WSON 6x5mm (Call Factory)
IS25LP064B-QLLA*
8-contact WSON 8x6mm (Call Factory)
IS25LP064B-QFLA*
8-pin VSOP 208mil (Call Factory)
IS25LP064B-QMLA*
16-pin SOIC 300mil (Call Factory)
IS25LP064B-QGLA*
24-ball TFBGA 6x8mm (Call Factory)
IS25LP064B-RMLA*
16-pin SOIC 300mil(3)
IS25LP064B-PMLA*
16-pin SOIC 300mil(3)
IS25LP064B-JWLE
KGD (Call Factory)
Integrated Silicon Solution, Inc.- www.issi.com
Rev. 00C
05/21/2015
97
IS25LP064/032A/B
Density
Frequency (MHz)
133
Order Part Number(1)
Package(2)
IS25LP032A-JBLE
IS25LP032A-JBLE1
8-pin SOIC 208mil
IS25LP032A-JKLE
IS25LP032A-JKLE1
8-contact WSON 6x5mm
IS25LP032A-JLLE
IS25LP032A-JLLE1
8-contact WSON 8x6mm
IS25LP032A-JFLE
IS25LP032A-JFLE1
8-pin VSOP 208mil
IS25LP032A-JMLE
IS25LP032A-JMLE1
16-pin SOIC 300mil
IS25LP032A-JGLE
IS25LP032A-JGLE1
24-ball TFBGA 6x8mm
IS25LP032A-RMLE
IS25LP032A-RMLE1
16-pin SOIC 300mil(3)
IS25LP032A-PMLE
IS25LP032A-PMLE1
16-pin SOIC 300mil(3)
IS25LP032A-JBLA*
8-pin SOIC 208mil (Call Factory)
IS25LP032A-JKLA*
8-contact WSON 6x5mm (Call Factory)
IS25LP032A-JLLA*
8-contact WSON 8x6mm (Call Factory)
IS25LP032A-JFLA*
8-pin VSOP 208mil (Call Factory)
IS25LP032A-JMLA*
16-pin SOIC 300mil (Call Factory)
IS25LP032A-JGLA*
24-ball TFBGA 6x8mm (Call Factory)
IS25LP032A-RMLA*
16-pin SOIC 300mil(3)
IS25LP032A-PMLA*
16-pin SOIC 300mil(3)
IS25LP032A-JWLE
KGD (Call Factory)
32Mb
DTR
66
IS25LP032B-JBLE
IS25LP032B-JBLE1
8-pin SOIC 208mil
IS25LP032B-JKLE
IS25LP032B-JKLE1
8-contact WSON 6x5mm
IS25LP032B-JLLE
IS25LP032B-JLLE1
8-contact WSON 8x6mm
IS25LP032B-JFLE
IS25LP032B-JFLE1
8-pin VSOP 208mil
IS25LP032B-JMLE
IS25LP032B-JMLE1
16-pin SOIC 300mil
IS25LP032B-JGLE
IS25LP032B-JGLE1
24-ball TFBGA 6x8mm
IS25LP032B-RMLE
IS25LP032B-RMLE1
16-pin SOIC 300mil(3)
IS25LP032B-PMLE
IS25LP032B-PMLE1
16-pin SOIC 300mil(3)
IS25LP032B-JBLA*
8-pin SOIC 208mil (Call Factory)
IS25LP032B-JKLA*
8-contact WSON 6x5mm (Call Factory)
IS25LP032B-JLLA*
8-contact WSON 8x6mm (Call Factory)
IS25LP032B-JFLA*
8-pin VSOP 208mil (Call Factory)
IS25LP032B-JMLA*
16-pin SOIC 300mil (Call Factory)
IS25LP032B-JGLA*
24-ball TFBGA 6x8mm (Call Factory)
IS25LP032B-RMLA*
16-pin SOIC 300mil(3)
IS25LP032B-PMLA*
16-pin SOIC 300mil(3)
IS25LP032B-JWLE
KGD (Call Factory)
Notes:
1. A* = A1, A2, A3: Meets AEC-Q100 requirements with PPAP, E1= Extended+ non-Auto qualified
Temp Grades: E= -40 to 105°C, E1= -40 to 125°C, A1= -40 to 85°C, A2= -40 to 105°C, A3= -40 to 125°C
2. For RESET# pin option, call Factory.
3. The dedicated parts have additional RESET# pin on pin3.
Integrated Silicon Solution, Inc.- www.issi.com
Rev. 00C
05/21/2015
98