Hynix H27U4G8 6F2D 4 gbit (512m x 8 bit) nand flash Datasheet

APCPCWM_4828539:WP_0000001WP_000000
APCPCWM_4828539:WP_0000001WP_0000001
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
4Gb NAND FLASH
H27U4G8_6F2D
H27S4G8_6F2D
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_000000
APCPCWM_4828539:WP_0000001WP_0000001
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Document Title
4 Gbit (512M x 8 bit) NAND Flash Memory
Revision History
Revision
No.
History
Draft
Date
Remark
0.0
Initial Draft
Jan. 12. 2010
Preliminary
1.0
1.1
1.2
ICC2: Saparate Cache case and normal case
tCBSYW value update (5us-Typ.)
tCEA -> tCR Typo correction
ICC2 Typcal delete (because of same as max. value)
Adding Bad Block Marking Information
Mar. 04. 2010
Mar. 31. 2010
April 14. 2010
Parameter page update
1.3
Fig. 37 correction
June 29. 2010
1.4
at least five times -> 3 times in 3.21
Typo correction D1 -> D in Table. 29
OCT. 8. 2010
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
FEATURES SUMMARY
DENSITY
- 4Gbit: 4096blocks
Nand FLASH INTERFACE
- NAND Interface
- ADDRESS / DATA Multiplexing
SUPPLY VOLTAGE
- Vcc = 3.0/1.8V Volt core supply voltage for Program,
Erase and Read operations.
MEMORY CELL ARRAY
- X8: (2K + 64) bytes x 64 pages x 4096 blocks
- X16: (1k+32) words x 64 pages x 2048 blocks
PAGE SIZE
- X8: (2048 + 64 spare) bytes
- X16:(1024 + 32spare) Words
Block SIZE
- X8: (128K + 4K spare) bytes
- X16:(64K + 2K spare) Words
PAGE READ / PROGRAM
- Random access: 25us (Max)
- Sequentiall access: 25ns / 45ns (3.0V/1.8V, min.)
- Program time(3.0V/1.8V): 200us / 250us (Typ)
ADDTIONAL FEATURE
- Multiplane Architecture
: Array is split into two independent planes.
Parallel operations on both planes are available, having
program and erase time.
- Single and multiplane copy back program with automatic
EDC (error detection code)
- Single and multiplane page re-program
- Single and multiplane cache program
- Cache read
- Multiplane block erase
Reliability
- 100,000 Program / Erase cycles (with 1bit /528Byte ECC)
- 10 Year Data retention
ONFI 1.0 COMPLIANT COMMAND SET
ELECTRONICAL SIGNATURE
- Munufacture ID: ADh
- Device ID
PACKAGE
- Lead/Halogen Free
- TSOP48 12 x 20 mm
- Multi-page program time (2 pages):
200us / 250us (3.0V/1.8V, Typ.)
BLOCK ERASE / MULTIPLE BLOCK ERASE
- Block erase time: 3.5 ms (Typ)
- Multi-block erase time (2 blocks):
3.5ms/ 3.5ms (3.0V/1.8V, Typ.)
SEQURITY
- OTP area
- Sreial number (unique ID)
- Non-volatile protection option for OTP and Block0(Opt.)
- Hardware program/erase disabled during
power transition
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
CONTENTS
1 Summary Description...................................................................................................................5
1.1 Product List....................................................................................................................................6
1.2 Pin description................................................................................................................................8
1.3 Functional block diagram...............................................................................................................9
1.4 Address role.................................................................................................................................10
1.5 Command Set...............................................................................................................................11
2 Bus Operations............................................................................................................................13
2.1 Command Input............................................................................................................................13
2.2 Address Input...............................................................................................................................13
2.3 Data Input....................................................................................................................................13
2.4 Data Output.................................................................................................................................13
2.5 Write Protect................................................................................................................................13
2.6 Stand-by......................................................................................................................................13
3 DEVICE OPERATION...................................................................................................................14
3.1 Page Read....................................................................................................................................14
3.2 Data Handiling Restriction During Program Sequences......................................................................14
3.3 Page Program...............................................................................................................................14
3.4 Multiple plane program..................................................................................................................15
3.5 Block Erase...................................................................................................................................15
3.6 Multiple plane Block Erase..............................................................................................................16
3.7 Copy-Back Program.......................................................................................................................16
3.8 Multiple plane copy back Program...................................................................................................17
3.9 Special read for copy back..............................................................................................................17
3.10 EDC Operation........................................................................................................................17
3.11 Read Status Register...................................................................................................................19
3.12 Read Status Enhanced.................................................................................................................19
3.13 Read Status Register field definition..............................................................................................20
3.14 Read EDC Status Register............................................................................................................20
3.15 Reset.........................................................................................................................................21
3.16 Cache Read................................................................................................................................21
3.17 Cache Program...........................................................................................................................22
3.18 Multi-plane Cache Program..........................................................................................................22
3.19 Read ID......................................................................................................................................24
3.20 Read ONFI Signature...................................................................................................................26
3.21 Read Parameter Page..................................................................................................................26
3.22 Parameter Page Data Structure Definition......................................................................................26
4 OTHER FEATURES.......................................................................................................................30
4.1 Data Protection and Power on / off sequence...................................................................................30
4.2 Ready/Busy..................................................................................................................................30
4.3 Write protect (#WP) handling........................................................................................................30
5 Device Parameters......................................................................................................................31
6 Timing Diagrams.........................................................................................................................35
7 Package Mechanical...............................................................................................................58
7.1 Power consumptions and pin capacitance for allowed stacking configurations.....................................59
8 Application notes and comments.............................................................................................60
8.1 System Interface using CE# don't care..........................................................................................60
8.2 System Bad Block Replacement....................................................................................................61
8.3 Bad Block Management System....................................................................................................62
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
1 Summary Description
H27(U_S)4G8_6F2D series is a 512Mx8bit with spare 16Mx8 bit capacity.
The device is offered in 3.0/1.8 Vcc Power Supply, and with x8 and x16 I/O interface
Its NAND cell provides the most cost-effective solution for the solid state mass storage market.
The memory is divided into blocks that can be erased independently so it is possible to preserve valid data while old
data is erased.
The device contains 4096 blocks, composed by 64 pages.
Memory array is split into 2 planes, each of them consisting of 2048 blocks.
Like all other 2KB - page NAND Flash devices, a program operation allows to write the 2112-byte page in typical
200us(3.3V) and an erase operation can be performed in typical 3.5ms on a 128K-byte block.
In addition to this, thanks to multi-plane architecture, it is possible to program 2 pages at a time (one per each plane)
or to erase 2 blocks at a time (again, one per each plane). As a consequence, multi-plane architecture allows program
time to be reduced by 40% and erase time to be reduction by 50%. In case of multi-plane operation, there is small degradation at 1.8V application in terms of program/erase time.
The multiplane operations are supported both with traditional and ONFI 1.0 protocols.
Data in the page can be read out at 25ns (3V version) and 45nsec (1.8V version) cycle time per byte. The I/O pins
serve as the ports for address and data input/output as well as command input. This interface allows a reduced pin
count and easy migration towards different densities, without any rearrangement of footprint.
Commands, Data and Addresses are synchronously introduced using CE#, WE#, ALE and CLE input pin.
The on-chip Program/Erase Controller automates all read, program and erase functions including pulse repetition,
where required, and internal verification and margining of data.
A WP# pin is available to provide hardware protection against program and erase operations.
The output pin RB# (open drain buffer) signals the status of the device during each operation. In a system with multiple memories the RB# pins can be connected all together to provide a global status signal.
Each block can be programmed and erased up to 100,000 cycles with ECC (error correction code) on. To extend the lifetime of Nand Flash devices, the implementation of an ECC is mandatory.
The chip supports CE# don't care function. This function allows the direct download of the code from the NAND Flash
memory device by a microcontroller, since the CE# transitions do not stop the read operation.
In addition, device supports ONFI 1.0 specification.
The copy back function allows the optimization of defective blocks management: when a page program operation fails
the data can be directly programmed in another page inside the same array section without the time consuming serial
data insertion phase. Copy back operation automatically executes embedded error detection operation: 1 bit error out
of every 528-byte (x8) or 1 bit error out of every 264-word (x16) can be detected. With this feature it is no longer necessary to use an external to detect copy back operation errors.
Multiplane copy back is also supported, both with traditional and ONFI 1.0 protocols. Data read out after copy back read
(both for single and multiplane cases) is allowed.
In addition, Cache program and multi cache program operations improve the programing throughput by programing
data using the cache register.
The devices provide two innovative features: page re-program and multiplane page re-program. The page re-program
allows to re-program one page. Normally, this operation is performed after a previously failed page program operation.
Similarly, the multiplane page re-program allows to re-program two pages in parallel, one per each plane. The first page
must be in the first plane while the second page must be in the second plane; the multiplane page re-program operation is performed after a previously failed multiplane page program operation. The page re-program and multiplane
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
page re-program guarantee imporve performance, since data insertion can be omitted during re-program operations,
and save ram buffer at the host in the case of program failure.
The devices, available in the TSOP48 (12X20mm) package, support the ONFI1.0 specfication and come with four sequrity features:
- OTP (one time programmable) area, which is a restricted access area where sensitive data/code can be stored
permantely.
- Serial number (unique identifier), which allows the devices to be nuniquely indentified.
- Read ID2 extention
- Non-volatile protection to lock sensible data permanently.
These security features are subject to an NDA (non-disclosure agreement) and are, therefore, no described in the
datasheet. For more details about them, contact your nearest Hynix sales office.
1.1.Product List
PART NUMBER
ORGANIZATION
Operating RANGE
PACKAGE
H27U4G8F2D
x8
2.7 to 3.6V
-
H27U4G6F2D
x16
2.7 to 3.6V
-
H27S4G8F2D
x8
1.7 to 1.95V
-
H27S4G6F2D
x16
1.7 to 1.95V
-
Table 1: list of supported versions / packages
VDD
DQ0~DQ7 (x8)
CE#
DQ0~DQ15 (x16)
WE#
RB#
RE#
ALE
CLE
WP#
VSS
Figure 1: Logic Diagram
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
DQ7 - DQ0
Data Input / Outputs (x8/x16)
DQ15 - DQ8
Data Input / Outputs (x16)
CLE
Command latch enable
ALE
Address latch enable
CE#
Chip Enable
RE#
Read Enable
WE#
Write Enable
WP#
Write Protect
RB#
Ready/ Busy
VCC
Power supply
VSS
Ground
NC
No Connected internally
Table 2: Signal Names
NC
NC
NC
NC
NC
NC
R/B
RE
CE
NC
NC
Vcc
Vss
NC
NC
CLE
ALE
WE
WP
NC
NC
NC
NC
NC
1
12
13
48
NAND Flash
TSOP1
37
36
(x8)
24
25
NC
NC
NC
NC
I/O7
I/O6
I/O5
I/O4
NC
NC
NC
Vcc
Vss
NC
NC
NC
I/O3
I/O2
I/O1
I/O0
NC
NC
NC
NC
NC
NC
NC
NC
NC
NC
R/B
RE
CE
NC
NC
Vcc
Vss
NC
NC
CLE
ALE
WE
WP
NC
NC
NC
NC
NC
1
48
G
12
13
NAND Flash G
TSOP1
37
36
(x16)
24
25
Vss
I/O15
I/O7
I/O14
I/O6
I/O13
I/O5
I/O12
I/O4
NC
NC
Vcc
NC
NC
NC
I/O11
I/O3
I/O10
I/O2
I/O9
I/O1
I/O8
I/O0
Vss
Figure 2. 48TSOP1 Contact, x8 and x16 Devic
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
1.2 PIN DESCRIPTION
Pin Name
Description
DQ0 - DQ15
DATA INPUTS/OUTPUTS
The DQ pins allow to input command, address and data and to output data during read / program
operations. The inputs are latched on the rising edge of Write Enable (WE#). The I/O buffer float to
High-Z when the device is deselected or the outputs are disabled.
CLE
COMMAND LATCH ENABLE
This input activates the latching of the DQ inputs inside the Command Register on the Rising edge of
Write Enable (WE#).
ALE
ADDRESS LATCH ENABLE
This input activates the latching of the DQ inputs inside the Command Register on the Rising edge of
Write Enable (WE#).
CE#
CHIP ENABLE
This input controls the selection of the device. When the device is busy CE# low does not deselect the
memory.
WE#
WRITE ENABLE
This input acts as clock to latch Command, Address and Data. The DQ inputs are latched on the rise
edge of WE#.
RE#
READ ENABLE
The RE# input is the serial data-out control, and when active drives the data onto the I/O bus. Data is
valid tREA after the falling edge of RE# which also increments the internal column address counter by
one.
WP#
WRITE PROTECT
The WP# pin, when Low, provides an Hardware protection against undesired modify (program / erase)
operations.
RB#
READY BUSY
The Ready/Busy output is an Open Drain pin that signals the state of the memory.
VCC
SUPPLY VOLTAGE FOR IO BUFFER
The VCC supplies the power for all the operations (Read, Write, Erase). An internal lock circuit prevent
the insertion of Commands when VCC is less than VLKO
VSS
GROUND
NC / DNU
NO CONNECTED / DON’T USE
Table 3: Pin Description
NOTE:
1. A 0.1uF capacitor should be connected between the VCC Supply Voltage pin and the VSS Ground pin to decouple
the current surges from the power supply. The PCB track widths must be sufficient to carry the currents required
during program and erase operations.
2. an internal voltage detector disables all functions whenever VCC is below 1.8V (3V version) or 1.1V (1.8V) version
to protect the device from any involuntary program/erase during power transitions.
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
1.3 Functional block diagram
ADDRESS
REGISTER/
COUNTER
PROGRAM
ERASE
CONTROLLER
HV GENERATION
X
4096 Mbit + 128 Mbit
NAND Flash
MEMORY ARRAY
WE#
CE#
WP#
RE#
D
E
C
O
D
E
R
COMMAND
INTERFACE
LOGIC
PAGE BUFFER
COMMAND
REGISTER
Y DECODER
DATA
REGISTER
BUFFERS
IO
Figure 3: block description
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
1.4 Address role
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
Cycle
A0
A1
A2
A3
A4
A5
A6
A7
2nd Cycle
A8
A9
A10
A11
0
0
0
0
3rd Cycle
A12
A13
A14
A15
A16
A17
A18
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
A31
0
0
0
0
1st
4
th
Cycle
5th Cycle (*)
Table 4: Address Cycle Map (x8)
(*): A30 for 8Gbit DDP(1CE). A30:A31 for 16Gbit QDP(1CE).
As far as the address bits are concerned, the following rules apply:
A0 - A11 : column address in the page
A12 - A17 : page address in the block
A18 : plane address (for multi-plane operations) / block address (for normal operations)
A19 - A31 : block address
DQ0
DQ1
DQ2
DQ3
DQ4
DQ5
DQ6
DQ7
Cycle
A0
A1
A2
A3
A4
A5
A6
A7
Cycle
A8
A9
A10
0
0
0
0
0
3rd Cycle
A11
A12
A13
A14
A15
A16
A17
A18
4th Cycle
A19
A20
A21
A22
A23
A24
A25
A26
A27
A28
A29
A30
0
0
0
0
1st
nd
2
5
th
Cycle (*)
Table 5: Address Cycle Map (x16)
(*): A29 for 8Gbit DDP(1CE). A29:A30 for 16Gbit QDP(1CE)
As far as the address bits are concerned, the following rules apply:
A0 - A10 : column address in the page
A11 - A16 : page address in the block
A17 : plane address (for multi-plane operations) / block address (for normal operations)
A18 - A30 : block address
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
1.5 Command Set
Command(1)
1st CYCLE
2nd CYCLE
READ
00h
30h
READ FOR COPY-BACK
00h
35h
SPECIAL READ FOR COPY BACK
00h
36h
READ ID
90h
READ ID2
30h-65h-00h
PAGE PGM (start) / CACHE PGM (end)
80h
10h
CACHE PGM (Start) / (continue)
80h
15h
8Bh
10h
th
PAGE CACHE REPROGRAM (end)
N
PAGE CACHE REPROGRAM (continue)
8Bh
15h
N-1
th
8Ah
15h
PAGE CACHE REPROGRAM (continue)
COPY BACK PGM (start)
85h
10h
80h
11h
81h
10h
ONFI MULTIPLANE PROGRAM
80h
11h
80h
10h
MULTIPLANE PAGE RE-PROGRAM
8Bh
11h
8Bh
10h
(Traditional) MULTIPLANE CACHE PGM (start/cont)
80h
11h
81h
15h
ONFI MULTIPLANE CACHE PGM (start/cont)
80h
11h
80h
15h
(Traditional) MULTI PLANE
PROGRAM(3)
(3)
(Traditional) MULTIPLANE CACHE PGM (end)
80h
11h
81h
10h
ONFI MULTIPLANE CACHE PGM (end)
80h
11h
80h
10h
Nth PAGES MULTIPLANE CACHE RE-PROGRAM (cont)
8Bh
11h
8Bh
15h
Nth PAGES MULTIPLANE CACHE RE-PROGRAM (end)
8Bh
11h
8Bh
10h
N-1th PAGES MULTIPLANE CACHE RE-PROGRAM (cont)
8Ah
11h
8Ah
15h
(Traditional) MULTI PLANE COPY BACK PROGRAM(3)
85h
11h
81h
10h
ONFI MULTIPLANE COPYBACK PGM
85h
11h
85h
10h
BLOCK ERASE
60h
D0h
(Traditional) MULTI PLANE BLOCK
ERASE(3)
ONFI MULTIPLANE BLOCK ERASE
Acceptable
command
during busy
Yes(2)
FFh
PAGE REPROGRAM / N
4th CYCLE
30h
RESET
th
3rd CYCLE
60h
60h
D0h
60h
D1h
60h
D0h
READ STATUS REGISTER
70h
Yes
READ STATUS ENHANCED
78h
Yes
RANDOM DATA INPUT
85h
RANDOM DATA OUTPUT
05h
CACHE READ(SEQUENTIAL)
31h
CACHE READ ENHANCED (RANDOM)
00h
CACHE READ END
3Fh
READ PARAMETER PAGE
Ech
EDC STATUS READ
EXTENDED READ STATUS
E0h
31h
7Bh
F2h/F3h/F4h/F5h
Yes
Table 6: Public Command Set
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
NOTE:
1. Commands listed in BOLD are referring to ONFI 1.0 Specification.
2. Only during cache ready busy.
3.Command maintained for backward compatibility
CLE
ALE
CE#
WE#
RE#
WP#
H
L
L
Rising
H
X
MODE
Read
Mode
Command Input
L
H
L
Rising
H
X
H
L
L
Rising
H
H
Address Input
L
H
L
Rising
H
H
Write
Mode
L
L
L
Rising
H
H
Data Input
L
L
(1)
L
H
Falling
X
Data Output (on going)
X
X
L(1)
H
H
X
Data Output (suspended)(2)
L
L
L
H
H
X
Busy time in Read
X
X
X
X
X
H
Busy time in Program
X
X
X
X
X
H
Busy time in Erase
X
X
X
X
X
L
Write Protect
X
X
H
X
X
0 V / VCC
Command Input
Address Input
Stand By
Table7: Mode Selection
NOTES:
1. As 4Gbit SLC F41 is CE# don't care device, CE# high during latency time does not stop the read operation.
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
2. BUS OPERATION
There are six standard bus operationTable 28s that control the device. These are Command Input, Address Input, Data
Input, Data Output, Write PrTable 28otect, and Standby. (see Figure 1 and Table 6)
Typically glitches less than 5 ns on Chip Enable, Write Enable and Read Enable are ignored by the memory and do not
affect bus operations.
2.1. Command Input
Command Input bus operation is used to give a command to the memory device. Command are accepted with Chip
Enable low, Command Latch Enable High, Address Latch Enable low and Read Enable High and latched on the rising
edge of Write Enable. Moreover for commands that starts a modify operation (write/erase) the Write Protect pin must
be high. See Figure 5 and Table 28 for details of the timings requirements. Command codes are always applied on
IO7:0 regardless of the bus configuration. (X8 or X16)
2.2. Address Input
Address Input bus operation allows the insertion of the memory address. 5 clock cycles are needed to input the
addresses. Addresses are accepted with Chip Enable low, Address Latch Enable High, Command Latch Enable low and
Read Enable High and latched on the rising edge of Write Enable. Moreover for commands that starts a modify operation (write/erase) the Write Protect pin must be high. See Figure 5 and Table 28 for details of the timings requirements. Addresses are always applied on IO7:0 regardless of the bus configuration. (X8 or X16). Refer to Table 4 and
Table 5 for more detailed information.
2.3. Data Input
Data Input bus operation allows to feed to the device the data to be programmed. The data insertion is serial and
timed by the Write Enable cycles. Data are accepted only with Chip Enable low, Address Latch Enable low, Command
Latch Enable low, Read Enable High, and Write Protect High and latched on the rising edge of Write Enable. See Figure 7 and Table 28 for details of the timings requirements.
2.4. Data Output
Data Output bus operation allows to read data from the memory array and to check the status register content, the
EDC register content and the ID data. Data can be serially shifted out by toggling the Read Enable pin with Chip Enable
low, Write Enable High, Address Latch Enable low, and Command Latch Enable low. See Figure 8 to Figure 11 and
Table 28 for details of the timings requirements.
2.5. Write Protect
Hardware Write Protection is activated when the Write Protect pin is low. In this condition modify operation do not start
and the content of the memory is not altered. Write Protect pin is not latched by Write Enable to ensure the protection
even during the power up.
2.6. Standby
In Standby the device is deselected, outputs are disabled and Power Consumption is reduced.
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3. DEVICE OPERATION
3.1. Page Read
This operation is initiated by writing 00h and 30h to the command register along with five address cycles. Two types of
operations are available: random read, serial page read. The random read mode is enabled when the page address is
changed. The 2112 bytes (x8) or 1056 (x16) of data within the selected page are transferred to the data registers in
less than 25us(tR). The system controller may detect the completion of this data transfer (tR) by analyzing the output
of R/B pin. Once the data in a page is loaded into the data registers, they may be read out in 25ns (3V version) and
45nsec (1.8V version) cycle time by sequentially pulsing RE#. The repetitive high to low transitions of the RE# clock
make the device output the data starting from the selected column address up to the last column address.
The device may output random data in a page instead of the sequential data by writing random data output command.
The column address of next data, which is going to be out, may be changed to the address which follows random data
output command.
Random data output can be operated multiple times regardless of how many times it is done in a page.
After power up device is in read mode, so 00h command cycle is not necessary to start a read operation. Any operation
other than read or random data output causes device to exit read mode.
Check Figure 12, Figure 13, Figure 14 as references.
3.2 Data handling restirctions during program sequences
Applications which use the error detection code in copy back must respect some restrictions related to data handling
during program sequence.
The error dection code check is used during copy back program and multiplane copy back program operations to detect
single bit errors pccurred in the source page (for details about EDC)
Note: The restrictions described below are not valid if the application uses the copy back program or multiplane copy
back program without EDC check.
When data handling is performed, the page program, multiplane page program, page re-program, multiplane page reprogram, cache ptrgram and multiplane cache program operations, must respect the following restrictions:
1. Program operations must be performed on the whole page, or on the whple EDC unit at a time.
2. For each program operation, random data input can be executed only once for each EDC unit.
Copy back program or multiplane copy back program opeations must respect the following restrictions:
1. If rando, data input is applied in a given EDC unit, the data of the whole EDC unit must be inserted. In ohter words, the
EDC check is possible only if the whole EDC unit is modified during a copy back program sequence.
2. For each program operation, rando, data input can be executed only once for each EDC unit.
3.3 Page Program
A page program cycle consists of a serial data loading period in which up to 2112 bytes of data may be loaded into the
data register, followed by a non-volatile programming period where the loaded data is programmed into the appropriate
cell.
The serial data loading period begins by inputting the Serial Data Input command (80h), followed by the five cycle
address inputs and then serial data. The words other than those to be programmed do not need to be loaded. The
device supports random data input within a page. The column address of next data, which will be entered, may be
changed to the address which follows random data input command (85h). Random data input may be operated multiple times regardless of how many times it is done in a page.
The Page Program confirm command (10h) initiates the programming process. The internal write state controller
automat-
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ically executes the algorithms and controls timings necessary for program and verify, thereby freeing the system controller for other tasks. Once the program process starts, the Read Status Register commands (70h or 78h) may be
issued to read the status register. The system controller can detect the completion of a program cycle by monitoring
the RB# output, or the Status bit (I/O 6) of the Status Register. Only the Read Status commands (70h or 78h) or Reset
command are valid during programming is in progress. When the Page Program is complete, the Write Status Bit (I/O
0) may be checked. The internal write verify detects only errors for "1"s that are not successfully programmed to "0"s.
The command register remains in Read Status command mode until another valid command is written to the command register. Figure 14 and Figure 15 detail the sequence.
The device is programmed basically by page, but it also allows multiple partial page programming of a word or consecutive bytes up to 2112 (x8) or 1056 (x16) in a single page program cycle.
The number of consecutive partial page programming operations (NOP) within the same page must not exceed the
number indicated in Table 27. In addition, pages must be sequentially programmed within a block.
Users which use "EDC check" in copy back must comply with some limitations related to data handling during one
page program sequence. Please refer to Section 3.10 for details.
3.4. Multiple plane program
Device supports multiple plane program: it is possible to program 2 pages in parallel, one per each plane.
A multiple plane program cycle consists of a double serial data loading period in which up to 4224bytes of data may be
loaded into the data register, followed by a non-volatile programming period where the loaded data is programmed into
the appropriate cell. The serial data loading period begins with inputting the Serial Data Input command (80h), followed
by the five cycle address inputs and serial data for the 1st page. Address for this page must be in the 1st plane
(A<18>=0). The device supports random data input exactly same as in the case of page program operation. The Dummy Page Program Confirm command (11h) stops 1st page data input and devices becomes busy for a short time (tDBSY).
Once it has become ready again, either the traditional "81h" or the ONFI 1.0 "80h" command must be issued, followed
by 2nd page address (5 cycles) and its serial data input. Address for this page must be in the 2nd plane (A<18>=1).
Program Confirm command (10h) makes parallel programming of both pages to start. Figure 20 and Figure 21 describe the sequences.
User can check operation status by monitoring RB# pin or reading status register commands (70h or 78h), as if it were
a normal page program: read status register command is also available during Dummy Busy time (tDBSY).
In case of fail in any of 1st and 2nd page program, fail bit of status register will be set however, in order to know which
page failed, ONFI 1.0 "read status enhanced" command must be issued Refer to section 3.11 for further info.
The number of consecutive partial page programming operations (NOP) within the same page must not exceed
the number indicated in Table 27. In addition, it is recommended to program pages sequentially within a block.
3.5. Block Erase
The Block Erase operation is done on a block basis. Block address loading is accomplished in 3 cycles initiated by an
Erase Setup command (60h). Only addresses A18 to A29 are valid while A12 to A17 are ignored. The Erase Confirm
command (D0h) following the block address loading initiates the internal erasing process This two-step sequence of
setup followed by execution command ensures that memory contents are not accidentally erased due to external noise
conditions.
At the rising edge of WE# after the erase confirm command input, the internal write controller handles erase and
erase-verify.
Once the erase process starts, the Read Status Register commands (70h or 78h) may be issued to read the status
register. The system controller can detect the completion of an erase by monitoring the RB# output, or the Status bit
(I/O 6) of the Status Register. Only the Read Status commands (70h or 78h) and Reset command are valid while erasing is in progress. When the erase operation is completed, the Write Status Bit (I/O 0) may be checked.
Figure 19 details the sequence.
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3.6. Multiple plane Block Erase
Multiple plane erase, allows parallel erase of two blocks in parallel, one per each memory plane.
Two different command sequences are allowed in these case, traditional and ONFI 1.0.
In traditional case, Block erase setup command (60h) must be repeated two times, followed by 1st and 2nd block address
respectively (3 cycles each). As for block erase, D0h command makes embedded operation to start.
In this case, multiplane erase does not need any Dummy Busy Time between 1st and 2nd block insertion.
See Figure 25 for details.
As an alternative, the ONFI 1.0 multiplane command protocol can be used, with 60h erase setup followed by 1st block
address and D1h first confirm, 60h erase setup followed by 2nd block address and D0h (multiplane confirm). Between the
two block-related sequences, a short busy time tIEBSY will occur. See Table 27 and Figure 26 for details.
Address limitation required for multiple plane program applies also to multiple plane erase. Also operation progress can be
checked like in the multiple plane program through Read Status Register, or ONFI 1.0 Read Status Enhanced.
As for multiplane page program, the address of the first second page must be within the first plane (A18=0 for x8
devices, A17=0 for x16 devices) and second plane (A18 = 1 for devices, A17=1 for x16 devices), respectively.
3.7. Copy-Back Program.
The copy-back program is configured to quickly and efficiently rewrite data stored in one page without utilizing an external memory. Since the time-consuming cycles of serial access and re-loading cycles are removed, the system performance
is greatly improved. The benefit is especially obvious when a portion of a block needs to be updated and the rest of the
block also need to be copied to the newly assigned free block. The operation for performing a copy-back program is a
sequential execution of page-read (without mandatory serial access) and copy back -program with the address of destination page. A read operation with "35h" command and the address of the source page moves the whole 2112byte data into
the internal data buffer. As soon as the device returns to Ready state, optional data read-out is allowed by toggling RE#
(see Figure 17), or Copy Back command (85h) with the address cycles of destination page may be written. The Program
Confirm command (10h) is required to actually begin the programming operation.
Source and Destination page in the copy back program sequence must belong to the same device plane (x8 : same A18,
x16 : same A17)
Data input cycle for modifying a portion or multiple distant portions of the source page is allowed as shown in Figure 18.
This device includes automatic Error Detection Code check during copy back operation, to detect single bit errors in EDC
units occurred in the source page.
More details on EDC operation, and limitation related to data input handling during one copy back program sequence are
available in section 3.10
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3.8. Multiple plane copy back Program
As for page program, device supports Multi-plane copy back program with exactly same sequence and limitations. Multi
plane copy back program must be preceded by 2 single page read for copy back command sequences (1st page must be
read from the 1st plane and 2nd page from the 2nd plane).
Multi-plane copy back cannot cross plane boundaries : the contents of the source page of one device plane can be copied only to a destination page of the same plane.
EDC check is available also for multi-plane copy back program.
Users which use "EDC check" in copy back must comply with some limitations related to data handling during one multiplane copy back program sequence. Please refer to Section 3.10 for details.
Also in this case, two different sequences are allowed : the traditional one (85h, first plane address 11h, 81h, second
plane address, 10h) represented in Figure 22, and ONFI 1.0 sequence (85h, first plane address 11h, 85h, second
plane address, 10h) represented in Figure 23 and Figure 24.
3.9. Special read for copy back
The device feature the "special read for copy back".
If copy back read (described in sections 3.7 and 3.8) is triggered with confirm command "36h" instead "35h", copy
back read from target page(s) will be executed with an increased internal (Vpass) voltage.
This special feature is used in order to try to recover incorrigible ECC read errors due to over-program or read disturb: it
shall be used ONLY if ECC read errors have occurred in the source page using "standard read" or "standard read for
copy back" sequences..
Excluding the copy-back read confirm command, all other features described in sections 3.7 and 3.8 for standard copy
back remain valid (including the figures referred to in those sections).
3.10. EDC operation
Error Detection Code check is a feature which be used during copy back program operation (both single and multiplane) to detect single bit errors occurred in the source page (s).
- In the x8 version EDC check allows detection of up to 1 single bit error every 528 bytes, where each 528 byte group is
composed by 512 byte of main array and 16 bytes of spare area (see Table 8 and Table 9). The described 528 byte
area is called "EDC unit".
- In the x16 version EDC allows detection of up to 1 single bit error every 264 words, where each 264 word group is
composed by 256 words of main array and 8 words of spare area (see Table 10 and Table 11). The described 264
word area is called "EDC unit".
EDC result can be checked through specific Read EDC register command, available only during copy back program and
only for the device version supporting ECC=1. EDC register can be queried during the copy back program busy time.
(tPROG)
For "EDC check" feature to operate correctly specific conditions on data input handling apply for page program and copy
back program (single, cached, multi-plane):
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For the case of page program
1) In section 3.2 it was explained that a number of consecutive partial program operations (NOP) is allowed within the
same page. In case this feature is used, the number of partial program operations occurring in the same EDC unit must
not exceed "one" (1). In other words, page program operations must be performed on the whole page, or on whole
EDC unit at a time.
2) "random data input" in a given EDC unit can be executed several times during one page program sequence, but data
insertion in each column address of each EDC unit must not exceed "one" (1).
For the case of copy back program
1) If random data input is applied in a given EDC unit, the data of the whole EDC unit must be inserted. In other words,
the EDC check is possible only if the whole EDC unit is modified during one copy back program sequence
2) "random data input" in a given EDC unit can be executed several times during one copy back sequence , but data
insertion in each column address of the EDC unit must not exceed "one" (1)
For the user which use Copy Back without EDC check, all the limitations described above do not apply.
Main Field (2,048 Byte)
“A”area
(1st sector)
“B”area
sector)
(2nd
512 Byte
512 Byte
Spare Field (64 Byte)
“C”area
(3rd sector)
“D”area
(4th sector)
“E”area
(1st sector)
512 Byte
512 Byte
16 Byte
“F”area
sector)
(2nd
16 Byte
“G”area
(3rd sector)
“H”area
(4th sector)
16 Byte
16 Byte
Table 8: page organization in EDC units (x8)
Sector
Main Field (Column 0~2047)
Area Name
Spare Field (Column 2048~2111)
Column Address
Area Name
Column Address
“A”
0~511
“E”
2048~2063
528-Byte Sector
“B”
512~1023
“F”
2064~2079
528-Byte Sector
“C”
1024~1535
“G”
2080~2095
4th 528-Byte Sector
“D”
1536~2047
“H”
2096~2111
1st 528-Byte Sector
2
nd
rd
3
Table 9: page organization in EDC units (x8)
“A”area
(1st sector)
“B”area
(2nd sector)
“C”area
(3rd sector)
“D”area
(4th sector)
“E”area
(1st sector)
256 words
256 words
256 words
256 words
8 words
“F”area
sector)
(2nd
8 words
“G”area
(3rd sector)
“H”area
(4th sector)
8 words
8 words
Table 10: page organization in EDC units (x16)
Sector
Main Field (Column 0~1023)
Spare Field (Column 1024~1055)
Area Name
Column Address
Area Name
Column Address
1st 264-word Sector
“A”
0~255
“E”
1024~1031
2nd 264-word Sector
“B”
256~511
“F”
1032~1039
3
rd
4
th
264-word Sector
“C”
512~767
“G”
1040~1047
264-word Sector
“D”
768~1023
“H”
1048~1055
Table 11: page organization in EDC units (x16)
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3.11 Read Status Register.
The device contains a Status Register to retrieve the status value for the last operation issued. After writing 70h command
to the command register, a read cycle outputs the content of the Status Register to the I/O pins on the falling edge of
CE# or RE#, whichever occurs last. This two line control allows the system to poll the progress of each device in multiple
memory connections even when RB# pins are common-wired. Refer to Table 12 for specific Status Register definition,
and to Figure 10 and Figure 38 for timings.
If Read Status register command is issued during multi-plane operations Read Status Register polling shall return the
combined status value related to the outcome of the operation in the two planes according to this table:
Status Register bit
Composite status value
Bit 0, Pass/Fail
OR
Bit 1, Cache Pass/Fail
OR
Status register is dynamic in other words, user is not required to toggle RE# / CE# to update it.
The command register remains in Status Read mode until further commands are issued. Therefore, if the status register
is read during a random read cycle, the read command (00h) should be given before starting read cycles.
Note:
Read Status Register command shall not be used for concurrent operations in of multi-dice stack configurations (single
CE#). For this case, either "Read Status Enhanced" (Section 3.12) shall be used instead.
3.12 Read Status Enhanced
Read Status Enhanced is an additional feature used to retrieve the status value for a previous operation in the following
cases:
- on a specific die of a multi-dice stack configurations (single CE#), in case of concurrent operations
When 4Gbit dice are stacked(*) to form 8Gbit DDP or 16Gbit QDP (single CE#), it is possible to run a first operation on
the first 4Gbit, then activate a concurrent operation on the second (or third or fourth) device. (examples: Erase while
Read, Read while Program, etc.)
- on a specific plane in case of multi-plane operations in the same die.
Figure 39 defines the Read Status Enhanced behavior and timings. The plane and die address must be specified in the
command sequence in order to retrieve the status of the die and the plane of interest.
Refer to Table 12 for specific Status Register definition. The command register remains in Status Read mode until further
commands are issued.
Status register is dynamic in other words, user is not required to toggle RE# / CE# to update it.
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3.13 Read Status Register field definition
Table 12 below lists the meaning of each bit of Read Status Register and Read Status Enhanced
IO
Page
Program/
Page
Reprogram
Block
Erase
Read
Cache
Read
Cache
Program/
Cache
reprogram
CODING
0
Pass / Fail
Pass / Fail
NA
NA
Pass / Fail
N Page
Pass: ‘0’ Fail: ‘1’
1
NA
NA
NA
NA
Pass / Fail
N - Page
Pass: ‘0’ Fail: ‘1’
2
NA
NA
NA
NA
NA
-
3
NA
NA
NA
NA
NA
-
4
NA
NA
NA
NA
NA
-
5
Ready / Busy
Ready / Busy
Ready / Busy
Ready / Busy
Ready / Busy
Active: ‘0’
Idle: ‘1’
6
Ready / Busy
Ready / Busy
Ready / Busy
Ready / Busy
Ready / Busy
Data cache Read/Busy
Busy: ‘0’ Ready: ‘1’
7
Write
Protect
Write
Protect
Write
Protect
Write
Protect
Write
Protect
Protected: ‘0’
Not Protected: ‘1’
Table 12: Status Register Coding
3.14 Read EDC status register
This operation is available only in copy back program and it allows the detection of errors occurred during read for copy
back. In case of multiple plane copy back, it is not possible to know which of the two read operation caused the error.
After writing Read EDC status register command (7Bh) to the command register, a read cycle outputs the content of the
EDC Register to the I/O pins on the falling edge of CE# or RE#, whichever occurs last.
Operation is same as read status register command. Refer to Table 13 for specific EDC Register definitions:
Copy back
program
IO
CODING
0
Pass / Fail
Pass: ‘0’ Fail: ‘1’
1
EDC status
No error: ‘0’ Error: ‘1’
2
EDC validity
Invalid: ‘0’ Valid: ‘1’
3
NA
-
4
NA
-
5
Ready / Busy
Busy: ‘0’ Ready: ‘1’
6
Ready / Busy
Busy: ‘0’ Ready: ‘1’
7
Write Protect
Protected: ‘0’ Not Protected: ‘1’
Table 13: EDC register coding
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3.15 Reset
The device offers a reset feature, executed by writing FFh to the command register. If the device is in Busy state during
random read, program or erase mode, the reset operation will abort these operations. The contents of memory cells being
altered are no longer valid, as the data will be partially programmed or erased. The command register is cleared to wait
for the next command, and the Status Register is cleared to value E0h when WP# is high. Refer to table 16 for device
status after reset operation. If the device is already in reset state a new reset command will not be accepted by the command register. The RB# pin transitions to low for tRST after the Reset command is written. Refer to Figure 28 for further
details.
3.16 Cache Read
Cache Read can be used to increase the read operation speed, as defined in Section 3.1, which is available only within
a block. As soon as the user starts to read one page, the device automatically loads the next page into the cache register.
Serial data output may be executed while data in the memory is read into cache register, Cache Read is initiated by the
page read sequence (00-30h) on a page M.
After random access to the first page is complete (R/B# returned to high, or read status register IO<6> switches to high),
two command sequences can be used to continue read cache:
- sequential read cache continue (command "31h" only): once the command is latched into the command register (see
Figure 30), device does busy for a short time (tRCBSY), during which data of the first page is transferred from the data
register to the cache register. At the end of this phase cache register data can be output by toggling RE# while the "next
"page (page address M+1) is read from the memory array into data register.
- random read cache continue (sequence "00h" <page N address> "31"): once the command is latched into the command
register (see Figure 31), device does busy for a short time (tRCBSY), during which data of the first page is transferred
from the data register to the cache register. At the end of this phase cache register data can be output by toggling RE#
while page N is read from the memory array into data register.
Subsequent pages are read by issuing additional "sequential" or "random" read cache continue command sequences.
If serial data output time of one page exceeds random access time (tR), the random access time of the next page is hidden
by data downloading of the previous page.
On the other hand, if 31h is issued prior to complete the random access to the next page, the device will stay busy as long
as needed to complete random access to this page, transfer its contents into the cache register, and trigger the random
access to the following page.
To terminate cache read, 3Fh command should be issued (see Figure 32). This command transfer data from data register to the cache register without issuing next page read.
During the Cache Read Operation, device doesn't allow any other command except for 31h, 3Fh, Read SR or reset (FFh).
To carry out other operations Cache read must be ended either by 3Fh command or device must be reset by issuing FFh.
Read Status command (70h) may be issued to check the status of the different registers, and the busy/ready status of the
cached read operations. More in detail:
a) the Cache-Busy status bit I/O<6> indicates when the cache register is ready to output new data.
b) the status bit I/O<5> can be used to determine when the cell reading of the current data register contents is complete.
Note:
31h and 3Fh commands reset the column counter thus when RE# is toggled to output the data of a given page, the first
output data is related to the first byte of the page (column address 00h). Random data output command can be used to
switch column address.
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3.17 Cache Program
Cache Program is used to improve the program throughput by programing data using the cache register. The cache program operation can only be used within one block. The cache register allows new data to be input while the previous data
that was transffered to the page buffer is programmed into the memory array.
Cache program is available only within a block
After the serial data input command (80h) is loaded to the command register, followed by 5 cycles of address, a full or
partial page of data is latched into the cache register.
Once the cache write command (15h) is loaded to the command register, the data in the cache register is transferred into
the data register for cell programming. At this time the device remains in Busy state For a short time (tCBSYW). After all
data of the cache register are transferred into the data register, the device returns to the Ready state, and allows loading
the next data into the cache register through another cache program command sequence (80h-15h).
The Busy time following the first sequence 80h - 15h equals the time needed to transfer the data of cache register to the
data register. Cell programming of the data of data register and loading of the next data into the cache register is conse
quently processed through a pipeline model.
In case of any subsequent sequence 80h - 15h, transfer from the cache register to the data register is held off until cell
programming of current data register contents is complete: till this moment the device will stay in a busy state (tCBSYW).
Read Status commands (70h or 78h) may be issued to check the status of the different registers, and the pass/fail status
of the cached program operations. More in detail:
a) the Cache-Busy status bit I/O<6> indicates when the cache register is ready to accept new data.
b) the status bit I/O<5> can be used to determine when the cell programming of the current data register contents is
complete.
c) the cache program error bit I/O<1> can be used to identify if the previous page (page N-1) has been successfully
programmed or not in cache program operation. The latter can be polled upon I/O<6> status bit changing to "1" .
d) the error bit I/O<0> is used to identify if any error has been detected by the program / erase controller while program
ming page N. The latter can be polled upon I/O<5> status bit changing to "1".
I/O<1> may be read together with I/O<0>.
If the system monitors the progress of the operation only with R/B#, the last page of the target program sequence must
be programmed with Page Program Confirm command (10h). If the Cache Program command (15h) is used instead, the
status bit I/O<5> must be polled to find out if the last programming is finished before starting any other operation.
See Table 12 and Figure 40 for more details.
3.18 Multi-plane Cache Program
The device supports multi-plane cache program, which enables high program throughput by programming two pages in
parallel while exploiting the data and cache registers of both planes to implement cache.
The device supports both the traditional and ONFI 1.0 command sets.
The command sequence can be summarized as follows:
a) Serial Data Input command (80h), followed by the five cycle address inputs and then serial data for the 1st page. Ad
dress for this page must be within 1st plane (A<20>=0). The data of 1st page other than those to be programmed do
not need to be loaded. The device supports random data input exactly like page program operation.
b) The Dummy Page Program Confirm command (11h) stops 1st page data input and the device becomes busy for a short
time (tDBSY).
c) Once device returns to ready again, 81h (or 80h) command must be issued, followed by 2nd page address (5 cycles)
and its serial data input. Address for this page must be within 2nd plane (A<20>=1). The data of 2nd page other than
those to be programmed do not need to be loaded.
d) Cache Program confirm command (15h) Once the cache write command (15h) is loaded to the command register, the
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
data in the cache registers is transferred into the data registers for cell programming. At this time the device remains in Busy
state for a short time (tCBSYW). After all data of the cache registers are transferred into the data registers, the device returns
to the Ready state, and allows loading the next data into the cache register through another cache program command se
quence.
The sequence 80h-...- 11h...-...81h...-...15h (or the corresponding ONFI 80h-...- 11h...-...80h...-...15h ) can be iterated, and
any new time the device will be busy for a for the tCBSYW time needed to complete cell programming of current data registers
contents, and transfer from cache registers can be allowed.
The sequence to end multi-plane cache program is 80h-...- 11h...-...81h...-...10h (or 80h-...- 11h...-...80h...-...10h for the
ONFI 1.0 case).
Figure 50 and Figure 51 show the command sequence for the multi plane cache program operation for the two protocols.
Multi-plane Cache program is available only within two paired blocks belonging to the two planes..
User can check operation status by R/B# pin or read status register commands (70h or 78h)
If user opts for 70h, Status register read will provide a "global" information about the operation in the two planes. More
in detail:
a) I/O<6> indicates when both cache registers are ready to accept new data.
b) I/O<5> indicates when the cell programming of the current data registers is complete
c) I/O<1> identifies if the previous pages in both planes (pages N-1) have been successfully programmed or not. The
latter can be polled upon I/O<6> status bit changing to "1".
d) I/O<0> identifies if any error has been detected by the program / erase controller while programming the two pages N.
The latter can be polled upon I/O<5> status bit changing to "1".
See Table 12 for more details
If the system monitor rs the progress of the operation only with R/B#, the last pages of the target program sequence must
be programmed with Page Program Confirm command (10h). If the Cache Program command (15h) is used instead, the sta
tus bit I/O<5> must be polled to find out if the last programming is finished before starting any other operation.
Refer to section 3.11 for further information.
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
3.19 Read ID.
The device contains a product identification mode, initiated by writing 90h to the command register, followed by an
address input of 00h.
The 5-byte Read ID configuration are supported: The device operating mode (5-byte) is selected through cam setting.
3.19.1 Legacy Read ID
Five read cycles sequentially output the manufacturer code (20h), and the device code and 3rd, 4th, and 5th cycle ID,
respectively. The command register remains in Read ID mode until further commands are issued to it. Figure 27 shows
the operation sequence, while Table 14 to Table 18 explain the byte meaning. Complete read id code table is as
follows.
DENSITY
4 Gbit
8 Gbit
DDP
16 Gbit
QDP
ORG
VCC
1st
2nd
3rd
4th (1)
5th
X8
3.0V
ADh
DCh
90h
95h
54h
X16
3.0V
ADh
CCh
90h
D5h
54h
X8
1.8V
ADh
ACh
90h
15h
54h
X16
1.8V
ADh
BCh
90h
55h
54h
X8
3.0V
ADh
D3h
D1h
95h
58h
X16
3.0V
ADh
C3h
D1h
D5h
58h
X8
1.8V
ADh
A3h
D1h
15h
58h
X16
1.8V
ADh
B3h
D1h
55h
58h
X8
3.0V
ADh
D5h
D2h
95h
5Ch
X16
3.0V
ADh
C5h
D2h
D5h
5Ch
X8
1.8V
ADh
A5h
D2h
15h
5Ch
X16
1.8V
ADh
B5h
D2h
55h
5Ch
Table 14: Legacy " Read ID for supported configurations
NOTE: for 1.8V version, IO<7,3>=00 would mean "50nsec", while device serial cycle time is 45nsec
DEVICE IDENTIFIER BYTE
DESCRIPTION
1st
Manufacturer Code
2nd
Device Identifier
3rd
Internal chip number, cell type, etc.
4th
Page Size, Block Size, Spare Size, Organization
5th
Multiplane information
Table 15: "Legacy" Read ID bytes meaning
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4 Gbit (512M x 8 bit) NAND Flash
3rd ID Data
Description
Internal Chip Number
1
2
4
8
Cell Type
2 Level Cell
4 Level Cell
8 Level Cell
16 Level Cell
Number of
Simultaneously
Programmed Pages
1
2
4
8
Interleave Program
Between multiple chips
Not Support
Support
Cache Program
Not Support
Support
I/O7
I/O6
I/O5 I/O4
I/O3 I/O2
I/O1 I/O0
0
0
1
1
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Table 16: Legacy Read ID 3rd byte description
4th ID Data
Description
Page Size
(w/o redundant area)
1KB
2KB
4KB
8KB
Block Size
(w/o redundant area)
64KB
128KB
256KB
512KB
Redundant Area Size
(byte/512byte)
8
16
Organization
X8
X16
Serial Access Minimum
50ns/30ns
25ns
Reserved
Reserved
I/O7
I/O6
I/O5 I/O4
I/O3
I/O2
I/O1 I/O0
0
0
1
1
0
0
1
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
0
1
1
Table 17: Legacy Read ID 4th byte description
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
5th ID Data
Description
Plane Number
1
2
4
8
Plane Size
(w/o redundant Area)
64Mb
128Mb
256Mb
512Mb
1Gb
2Gb
4Gb
8Gb
I/O7
I/O6 I/O5 I/O4
I/O3 I/O2
0
0
1
1
Reserved
0
0
0
0
1
1
1
1
0
0
1
1
0
0
1
1
I/O1
I/O0
0
0
0
1
0
1
0
1
0
1
0
1
0
1
0
Table 18: Legacy Read ID 5th byte description
3.20 Read ONFI Signature
To retrieve the ONFI signature, the command 90h together with an address of 20h shall be entered (i.e. it is not valid to
enter an address of 00h and read 36 bytes to get the ONFI signature). The ONFI signature is the ASCII encoding of 'ONFI'
where 'O' = 4Fh, 'N' = 4Eh, 'F' = 46h, and 'I' = 49h. Reading beyond four bytes yields indeterminate values. Figure 28
shows the operation sequence
3.21 Read Parameter Page
The Read Parameter Page function retrieves the data structure that describes the chip's organization, features, timings
and other behavioral parameters. Figure 37 defines the Read Parameter Page behavior.
This data structure enables the host processor to automatically recognize the Nand Flash configuration of a device. The
whole data structure is repeated at leat three times.
The Random Data Read command can be issued during execution of the read parameter page to read specific portions
of the parameter page.
The Read Status command may be used to check the status of read parameter page during execution. After completion
of the Read Status command, 00h is issued by the host on the command line to continue with the data output flow for
the Read Parameter Page command.
Read Status Enhanced shall not be used during execution of the Read Parameter Page command.
3.22 Parameter Page Data Structure Definition
Table21 defines the parameter page data structure. For parameters that span multiple bytes, the least significant byte
of the parameter corresponds to the first byte.
Values are reported in the parameter page in units of bytes when referring to items related to the size of data access (as
in an 8-bit data access device). For example, the chip will return how many data bytes are in a page. For a device that
supports 16-bit data access, the host is required to convert byte values to word values for its use. Unused fields should
be cleared to 0h.
For more detailed information about Parameter Page Data bits, refer to ONFI Specification 1.0 section 5.4.1
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Byte
O/M
Description
Values
Revision information and features block
0-3
4-5
6-7
8-9
M
Parameter page signature
Byte 0: 4Fh, "O"
Byte 1: 4Eh, "N"
Byte 2: 46h, "F"
Byte 3: 49h, "I"
4Fh, 4Eh, 46h, 49h
M
Revision number
2-15
1
0
02h, 00h
M
Features supported
5-15
Reserved (0)
4
1 = supports
3
1 = supports
2
1 = supports
programming
1
1 = supports
0
1 = supports
M
10-31
Reserved (0)
1 = supports ONFI version 1.0
Reserved (0)
odd to even page Copyback
interleaved operations
non-sequential page
multiple LUN operations
16-bit data bus width
H27U4G8F2DKA-BM:1Ch, 00h
H27S4G8F2DKA-BM:1Ch, 00h
H27S4G6F2DKA-BM:1Dh, 00h
H27U4G8F2DTR-BC:1Ch, 00h
H27U4G8F2DTR-BI:1Ch, 00h
H27U8G8G5DTR-BC:1Ch, 00h
H27U8G8G5DTR-BI:1Ch, 00h
Optional commands supported
6-15
Reserved (0)
5
1 = supports Read Unique ID
4
1 = supports Copyback
3
1 = supports Read Status Enhanced
2
1 = supports Get Features and Set Features
1
1 = supports Read Cache ntegrit
0
1 = supports Page Cache Program command
1Bh, 00h
Reserved (0)
00h
Manufacturer information block
32-43
M
Device manufacturer (12 ASCII characters)
48h, 59h, 4Eh, 49h, 58h, 20h, 20h, 20h, 20h, 20h,
20h, 20h
44-63
M
Device model (20 ASCII characters)
H27U4G8F2DKA-BM
48h, 32h, 37h, 55h, 34h, 47h, 38h, 46h, 32h, 44h,
4Bh, 41h, 2Dh, 42h, 4Dh, 20h, 20h, 20h, 20h, 20h
H27S4G8F2DKA-BM
48h, 32h, 37h, 53h, 34h, 47h, 38h, 46h, 32h, 44h,
4Bh, 41h, 2Dh, 42h, 4Dh, 20h, 20h, 20h, 20h, 20h
H27S4G6F2DKA-BM
48h, 32h, 37h, 53h, 34h, 47h, 36h, 46h, 32h, 44h,
4Bh, 41h, 2Dh, 42h, 4Dh, 20h, 20h, 20h, 20h, 20h
H27U4G8F2DTR-BC
48h, 32h, 37h, 55h, 34h, 47h, 38h, 46h, 32h, 44h,
54h, 52h, 2Dh, 42h, 43h, 20h, 20h, 20h, 20h, 20h
H27U4G8F2DTR-BI
48h, 32h, 37h, 55h, 34h, 47h, 38h, 46h, 32h, 44h,
54h, 52h, 2Dh, 42h, 49h, 20h, 20h, 20h, 20h, 20h
H27U8G8G5DTR-BC
48h, 32h, 37h, 55h, 38h, 47h, 38h, 47h, 35h, 44h,
54h, 52h, 2Dh, 42h, 43h, 20h, 20h, 20h, 20h, 20h
H27U8G8G5DTR-BI
48h, 32h, 37h, 55h, 38h, 47h, 38h, 47h, 35h, 44h,
54h, 52h, 2Dh, 42h, 49h, 20h, 20h, 20h, 20h, 20h
64
M
JEDEC manufacturer ID
ADh
65-66
O
Date code
00h
Reserved (0)
00h
67-79
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Memory organization block
80-83
M
Number of data bytes per page
00h, 08h, 00h, 00h
84-85
M
Number of spare bytes per page
40h, 00h
86-89
M
Number of data bytes per partial page
00h, 02h, 00h, 00h
90-91
M
Number of spare bytes per partial page
10h, 00h
92-95
M
Number of pages per block
40h, 00h, 00h, 00h
96-99
M
Number of blocks per logical unit (LUN)
00h, 10h, 00h, 00h
100
M
Number of logical units (LUNs)
01h
101
M
Number of address cycles
4-7
Column address cycles
0-3
Row address cycles
23h
102
M
Number of bits per cell
01h
103-104
M
Bad blocks maximum per LUN
50h, 00h
105-106
M
Block endurance
01h, 05h
107
M
Guaranteed valid blocks at beginning of target
01h
108-109
M
Block endurance for guaranteed valid blocks
00h, 00h
110
M
Number of programs per page
04h
111
M
Partial programming attributes
5-7
Reserved
4
1 = partial page layout is partial page data
followed by partial page spare
1-3
Reserved
0
1 = partial page programming has constraints
00h
112
M
Number of bits ECC correctability
01h
M
Number of interleaved address bits
4-7
Reserved (0)
0-3
Number of interleaved address bits
01h
O
Interleaved operation attributes
4-7
Reserved (0)
3
Address restrictions for program cache
2
1 = program cache supported
1
1 = no block address restrictions
0
Overlapped / concurrent interleaving support
04h
Reserved (0)
00h
113
114
115-127
Electrical parameters block
128
129-130
M
I/O pin capacitance
0Ah
M
Timing mode support
6-1
5Reserved (0)
5
1 = supports timing
4
1 = supports timing
3
1 = supports timing
2
1 = supports timing
1
1 = supports timing
0
1 = supports timing
H27U4G8F2DKA-BM:1Fh, 00h
H27S4G8F2DKA-BM:03h, 00h
H27S4G6F2DKA-BM:03h, 00h
H27U4G8F2DTR-BC:1Fh, 00h
H27U4G8F2DTR-BI:1Fh, 00h
H27U8G8G5DTR-BC:1Fh, 00h
H27U8G8G5DTR-BI:1Fh, 00h
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mode
mode
mode
mode
mode
5
4
3
2
1
0, shall be 1
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
131-132
O
Program cache timing mode support
6-1
5Reserved (0)
5
1 = supports timing mode 5
4
1 = supports timing mode 4
3
1 = supports timing mode 3
2
1 = supports timing mode 2
1
1 = supports timing mode 1
0
1 = supports timing mode 0,
133-134
M
tPROG Maximum page program time (㎲)
BCh, 02h
135-136
M
tBERS Maximum block erase time (㎲)
0Ah, 00h
137-138
M
tR Maximum page read time (㎲)
19h, 00h
139-140
M
tccs Minimum Change Column setup time (ns)
64h, 00h
141-163
Reserved (0)
H27U4G8F2DKA-BM:1Fh, 00h
H27S4G8F2DKA-BM:03h, 00h
H27S4G6F2DKA-BM:03h, 00h
H27U4G8F2DTR-BC:1Fh, 00h
H27U4G8F2DTR-BI:1Fh, 00h
H27U8G8G5DTR-BC:1Fh, 00h
H27U8G8G5DTR-BI:1Fh, 00h
00h
Vendor block
164-165
M
166-253
Vendor specific Revision number
00h
Vendor specific
00h
H27U4G8F2DKA-BM:48h, F6h
H27S4G8F2DKA-BM:9Bh, CEh
H27S4G6F2DKA-BM:54h, 61h
H27U4G8F2DTR-BC:1Fh, EDh
H27U4G8F2DTR-BI:5Bh, 14h
H27U8G8G5DTR-BC:FCh, C1h
H27U8G8G5DTR-BI:B8h, 38h
254-255
M
Integrita CRC
256-511
M
Value of bytes 0-255
512-767
M
Value of bytes 0-255
Repeat Value of bytes 0-255
768+
O
Additional redundant parameter pages
FFh
Redundant Parameter Pages
Repeat Value of bytes 0-255
Table 21: Parameter Page Description
NOTE: “O” Stands for Optional, “M” for Mandatory
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
4. OTHER FEATURES
4.1 Data Protection and Power on / off sequence
The device is designed to offer protection from any involuntary program/erase during power-transitions. An internal voltage detector disables all functions whenever Vcc is below about 1.8V (3V version), or 1.1V (1.8V version).
The power-up and power-down sequence is shown in Figure 32 in this case VCC and VCCQ on the one hand (and VSS
and VSSQ on the other hand) are shorted together at all times
The Ready/Busy signal shall be valid within 100us since the power supplies have reached the minimum values (as specified on), and shall return to one within 5msec (max).
During this busy time, the device executes the initialization process (cam reading), and dissipates a current ICC0 (30mA
max) in addition, it disregards all command excluding Read Status Register (70h).
At the end of this busy time, the device deaults into "read setup", thus if user decides to issue page read command, the
00h command may be skipped.
WP# pin provides hardware protection and is recommended to be kept at VIL during power-up and power-down. A recovery time of minimum 100usec is required before internal circuit gets ready for any command sequences as shown in
Figure 33. The two-step command sequence for program/erase provides additional software protection.
4.2 Ready/Busy.
The device has a Ready/Busy output that provides method of indicating the completion of a page program, erase, copyback, random read completion. The RB# pin is normally high and goes to low when the device is busy (after a reset,
read, program, erase operation). It returns to high when the internal controller has finished the operation. The pin is an
open-drain driver thereby allowing two or more RB# outputs to be Or-tied. Because pull-up resistor value is related to
tr(RB#) and current drain during busy (Ibusy), an appropriate value can be obtained with the following reference chart
(refer to Figure 34). Its value can be determined by the following guidance.
4.3 Write protect (#WP) handling
Erase and program operations are aborted if WP# is driven low during busy time, and kept low for about 100nsec.
Switching WP# low during this time is equivalent to issuing a Reset command (FFh)
The contents of memory cells being altered are no longer valid, as the data will be partially programmed or erased.
The R/B# pin will stay low for tRST (similarly to Figure 29). At the end of this time, the command register is ready to
process the next command, and the Status Register bit IO<6> will be cleared to "1", while IO<7> value will be related
to the WP# value.
Refer to Table 12 for more information on device status.
Erase and program operations are enabled or disabled by setting WP# to high or low respectively prior to issuing the setup commands (80h or 60h).
The level of WP# shall be set tWW nsec prior to raising the WE# pin for the set up command, as explained in Figure 35
and Figure 36.
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
WE
IO[7:0]
VALID
WP
SEQUENCE
ABORTED
> 100nsec
Figure 5: WP# low timing requirements during program/erase command sequence
5. Device Parameters
Parameter
Symbol
Min
Typ
Max
Unit
Valid Block Numbe, 4Gb
NVB
4016
-
4096
Blocks
Valid Block Numbe, 8Gb
NVB
8032(*)
-
8192
Blocks
Valid Block Numbe, 16Gb
NVB
16064(*)
-
16284
Blocks
Table 22: Valid Blocks Number
(*) Each 4Gb has maximum 80 bad blocks
NOTE: The 1st block is quranteed to be a valid blick at the time of shipment.
Symbol
Value
Parameter
3.0
Unit
Ambient Operating Temperature (Temperature Range Option 1)
0 to 70
°C
Ambient Operating Temperature (Temperature Range Option 6)
-40 to 85
°C
TBIAS
Temperature Under Bias
-50 to 125
°C
TSTG
Storage Temperature
-60 to 150
°C
VIO(2)
Input or Output Voltage
-0.6 to 4.6
V
Supply Voltage
-0.6 to 4.6
V
TA
VCC
Table 23: Absolute maximum ratings
NOTES:
1. Except for the rating "Operating Temperature Range", stresses above those listed in the Table "Absolute Maximum
Ratings" may cause permanent damage to the device. These are stress ratings only and operation of the device at
these or any other conditions above those indicated in the Operating sections of this specification is not implied. Expo
sure to Absolute Maximum Rating conditions for extended periods may affect device reliability. Refer also to the STMi
croelectronics SURE Program and other relevant quality documents.
2. Minimum Voltage may undershoot to -2V during transition and for less than 20ns during transitions.
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Parameter
Symbol
Test Conditions
ICC0
Power up Current
Power on current
Operatin
g
Current
Sequential
Read
ICC1
Program
ICC2
Erase
(Refer to 4.41)
tRC = see Table 28
CE#=vIL, Iout=0MA
1.8Volt
3.0Volt
Unit
Min
Typ
Max
Min
Typ
Max
-
15
30
-
15
30
mA
-
10
20
-
15
30
mA
Normal
-
-
20
-
-
30
mA
Cache
-
-
30
-
-
40
mA
ICC3
-
-
10
20
-
15
30
mA
Stand-by Current (TTL)
ICC4
CE#=VIH,
WP#=0V/Vcc
-
-
1
-
-
1
mA
Stand-By Current (CMOS)
ICC5
CE#=Vcc-0.2,
WP#=0/Vcc
-
10
50
-
10
50
uA
Input Leakage Current
ILI
VIN=0 to 3.6V
-
-
± 10
-
-
± 10
uA
Output Leakage Current
ILO
VOUT=0 to 3.6V
-
-
± 10
-
-
± 10
uA
Input High Voltage
VIH
-
Vcc
*0.8
-
Vcc
+0.3
Vcc
*0.8
-
Vcc
+0.3
V
Input Low Voltage
VIL
-
-0.3
-
Vcc*0.2
-0.3
-
Vcc
*0.2
V
Output High Voltage Level
VOH
IOH= -100uA
Vcc0.1
-
-
-
-
-
V
IOH= -400uA
-
-
-
2.4
--
-
V
IOH= -100uA
-
-
0.1
-
-
V
IOL= 2.1mA
-
-
-
-
-
0.4
V
VOL= 0.1V
3
-
4
-
-
-
mA
VOL= 0.4V
-
-
-
8
-
10
mA
VOL
Output Low Voltage Level
Output Low Current
(RB#)
IOL(RB#)
Table 24: DC and Operating Characteristics
NOTES:
1) all VCCQ and VCC pins, and VSS and VSSQ pins respectively are shorted together
2) Values listed in this table refer to the complete voltage range for VCC and VCCQ and to a single device in case of device stacking
refer to Section 7.3
3) All current measurement are performed with a 0.1uF capacitor connected between the Vcc Supply Voltage pin and the Vss Ground
pin.
4) Standby current measurement can be performed after the device has completed the initialization process at power up. Refer to
Section 4.1for more details
Parameter
Input Pulse Levels
Input Rise and Fall Times
Input and Output Timing Levels
Output Load (1.7V - 1.95Volt & 2.7V-3.6V)
Value
1.8Volt
3.0Volt
0V to Vcc
0V to Vcc
5ns
5ns
Vcc / 2
Vcc / 2
1 TTL GATE and
CL=30(1.8V), 50pF(3.3V)
1 TTL GATE and
CL=30(1.8V), 50pF(3.3V)
Table 25: AC Test Conditions
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Item
Symbol
Test Condition
Min
Max
Unit
Input / Output Capacitance (1)
CI/O
VIL= 0V
-
10
pF
Input Capacitance (1)
CIN
VIN= 0V
-
10
pF
Table 26: Pin Capacitance (TA = 25C, f=1.0MHz)
NOTE: For the stacked devices version the Input Capacitance is 10pF x (number of stacked chips) and the I/O ca
pacitance is 10pF x (number of stacked chips)
Parameter
Symbol
Program Time / Multi-plane program Time (3.0V)
Program Time/ Multi-plane program Time (1.8V)
tPROG
Min
Typ
Max
Unit
-
200
700
us
-
250
700
us
tDBSY
-
0.5
1
us
tCBSYW
-
5
tPROG
us
NOP
-
-
4
Cycle
Block Erase Time / Multi-plane Erase Time (3.0V)
tBERS
-
3.5
10
ms
Block Erase Time/ Multi-plane Block Erase Time (1.8V)
tBERS
-
3.5
10
ms
tCBSYR
-
3
tR
us
tIEBSY
-
0.5
1
us
Dummy Busy Time for Two Plane Program
Cache program short busy time
Number of partial Program
Cycles in the same page
Main + Spare Array
Read Cache busy time
Multi-plane erase short busy time (ONFI protocol only)
Table 27: Program / Erase Characteristics
NOTE: Typical program time is defined as the time within which more than 50% of the whole pages are programmed
(Vcc=3.3V and 1.8V, 25*C )
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Parameter
Symbol
1.8 Volt
Min
Max
3.0 Volt
Min
Max
Unit
tCLS
25
12
ns
CLE Hold time
tCLH
10
5
ns
CE# Setup time
tCS
35
20
ns
CE# Hold time
tCH
10
5
ns
WE# Pulse width
tWP
25
12
ns
ALE Setup time
tALS
25
12
ns
ALE Hold time
tALH
10
5
ns
Data Setup time
tDS
20
12
ns
Data Hold time
tDH
10
5
ns
Write Cycle time
tWC
45
25
ns
WE# High Hold time
tWH
15
10
ns
Address to Data Loading time
tADL
100
70
ns
CLE Setup time
25
tR
Data Transfer from Cell to Register
25
us
ALE to RE# Delay
tAR
10
CLE to RE# Delay
tCLR
10
10
ns
Ready to RE# Low
tRR
20
20
ns
RE# Pulse Width
tRP
25
WE# High to Busy
tWB
Read Cycle Time
tRC
RE# Access Time
tREA
CE# Low to RE# Low
tCR
10
ns
12
100
45
ns
100
25
30
10
ns
ns
20
10
ns
ns
RE# High to Output Hi-Z
tRHZ
100
CE# High to Output Hi-Z
tCHZ
30
CE# High to ALE or CLE Don't care
tCSD
10
10
ns
tRHOH
15
15
ns
RE# Low to Output Hold
tRLOH
-
5
ns
CE# High to Output Hold
tCOH
15
15
ns
RE# High Hold Time
tREH
15
10
ns
RE# High to Output Hold
100
ns
30
ns
tIR
0
0
ns
RE# High to WE# Low
tRHW
100
100
ns
WE# High to RE# Low
tWHR
60
60
Device Resetting Time(Read/Program/Erase)
tRST
-
Write protection time
tWW
100
Output Hi-Z to RE# Low
5/10/500(2)
ns
5/10/500(2)
100
ns
ns
Table 28: AC Timing Characteristics
NOTES: 1. The time to Ready depends on the value of the pull-up resistor tied to RB# pin
2. If Reset Command (FFh) is written at Ready state, the device goes into Busy for maximum 5us
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
6. Timing Diagrams
Command Latch Cycle
CLE
tCLS
tCLH
tCS
tCH
CE
tWP
WE
tALS
tALH
ALE
tDS
I/O x
tDH
Command
Figure 5: Command Latch Cycle
Address Latch Cycle
W&/6
&/(
W&6
W:&
W:&
W:&
W:&
&(
W:3
W:3
W:3
W:3
:(
W:+
W$/+
W$/6
W$/6
W:+
W$/+
W$/6
W:+
W$/+
W$/6
W:+
W$/+
W$/6
W$/+
$/(
W'+
,2[
W'+
W'6
W'6
&RO$GG
&RO$GG
W'+
W'6
5RZ$GG
W'+
W'6
5RZ$GG
W'+
W'6
5RZ$GG
Figure 6: Address Latch Cycle
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Input Data Latch Cycle
tCLH
CLE
tCH
CE
tWC
tALS
ALE
tWP
tWP
WE
tWH
tWH
tDS
I/Ox
tDH
tDS
DIN 0
tWP
tDH
tDS
DIN 1
tDH
DIN final
Figure 7: Input Data Latch Cycle
* Serial Access Cycle after Read (CLE=L, WE=H, ALE=L)
tRC
CE
tREH
tREA
RE
tCHZ
tREA
tREA
tRHZ
tCOH
tRHZ
tRHOH
I/Ox
Dout
Dout
Dout
tRR
R/B
NOTES: Transition is measured at ±200mV from steady state voltage with load.
This parameter is sampled and not 100% tested.
tRLOH is valid when frequency is higher than 33MHz.
tRHOH starts to be valid when frequency is lower than 33MHz.
Figure 8: Sequential Out Cycle after Read
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Serial Access Cycle after Read (EDO Type, CLE=L, WE=H, ALE=L)
tCR
CE
tRC
tRP
tCHZ
tCOH
tREH
RE
tREA
tRHZ
tREA
tRLOH
IOx
tRHOH
Dout
Dout
tRR
NOTES: Transition is measured at ±200mV from steady state voltage with load.
This parameter is sampled and not 100% tested.
tRLOH is valid when frequency is higher than 33MHz.
tRHOH starts to valid when frequency is lower than 33MHz.
R/B
Figure 9: Sequential Out Cycle after Read
Status Read Cycle & EDC Status Read Cycle
tCLR
CLE
tCLS
tCLH
tCS
CE
tCH
tWP
WE
tCEA
tCHZ
tCOH
tWHR
RE
tDS
IOx
tDH
tIR
tREA
70h or 7Bh
tRHZ
tRHOH
Status Output
Figure 10: Status / EDC Read Cycle
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
CLE
WE
ALE
RE
IO0-7
78h
R1
R2
R3
SR
Figure 11: Read Status Enhanced cycle
Read Operation
Figure 12: Read Operation (Read One Page)
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Read Operation (Intercepted by CE)
Figure 13: Read Operation intercepted by CE#
Random Data Output In a Page
Figure 14: Random Data Output
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Page Program Operation
CLE
CE
tWC
tWC
tWC
WE
tADL
tWB
tWHR
tPROG
ALE
RE
I/Ox
Col.
Add2
Col.
Add1
80h
Serial Data
Input Command Column Address
Row.
Add3
Row.
Add2
Row.
Add1
Row Address
Din
N
Din
M
1 up to m Byte
Serial Input
10h
70h
I/O0
Read Status
Command
Program
Command
R/B
I/O0=0 Successful Program
I/O0=1 Error in Program
NOTES: tADL is the time from the WE rising edge of final address cycle to the WE rising edge of first data cycle.
Figure 15: Page Program Operation
Page Program Operation with Random Data Input
CLE
CE
tWC
tWC
tWC
WE
tADL
tADL
tWB
tWHR
tPROG
ALE
RE
IOx
80h
Serial Data
Input Command
Col.
Add1
Col.
Add2
Column Address
Row
Add1
Row
Add2
Row
Add3
Column Address
Din
N
Din
M
85h
Random Data
Input Command
Col.
Add1
Col.
Add2
Column Address
Din
J
Din
K
Serial Input
70h
10h
IO0
Read Status
Command
Program
Command
R/B
NOTES : 1. tADL is the time from the WE risinig edge of final address cycle to the WE rising edge of first data cycle.
2. For EDC operation. only one time random data input is possible at same address.
Figure 16: Random Data In
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Figure 17: Copy back read with optional data readout
Copy- Back Program Operation With Random Data Input
Figure 18: Copy Back Program with Random Data Input
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Block Erase Operation
CLE
CE
tWC
WE
tWHR
tBERS
tWB
ALE
RE
IOx
60h
Row Add1 Row Add2 Row Add3
70h
D0h
I/O0
Row Address
BUSY
R/B
Auto Block Erase
Setup Command
Erase Command
Read Status
Command
IO0=0 Successful Erase
IO0=1 Error in Erase
Figure 19: Block Erase Operation (Erase One Block)
Two-Plane Page Program Operation
CLE
CE
tWC
WE
tWB
tDBSY
tWB
tPROG
tWHR
ALE
RE
I/Ox
tADL
tADL
Col.
Add1
80h
Col.
Add2
Row
Add1
Row
Add2
Row
Add3
Serial Data
Column Address Page Row Address
Input Command
Din
N
Din
M
1 up to 2112 Byte
Data Serial Input
81h
11h
Program
Command
(Dummy)
Col.
Add1
Col.
Add2
Row
Add1
Row
Add2
Row
Add3
Din
N
Din
M
10h
Program Confirm
Command (True)
70h
IO
Read Staus
Command
R/B
tDBSY: typ. 500us
max. 1us
Ex.) Tow-Plane Page Program
IO 0~7
tPROG
tDBSY
R/B
80h
Address & Data Input
11h
Col Add 1,2 & Row Add 1,2,3
2112 Byte Data)
81h
Note
A0 ~ A11 : Valid
A12 ~ A17 : Fixed ‘Low’
A18
: Fixed ‘Low’
A19 ~ A28 : Fixed ‘Low’
Address & Data Input
10h
70h
Col Add 1,2 & Row Add 1,2,3
2112 Byte Data)
A0 ~ A11 : Valid
A12 ~ A17 : Valid
A18
: Fixed “High’
A19 ~ A28 : Valid
Note : Any command between 11h and 81h is prohibited except 70h and FFh
NOTES:
1) the figure refers to x8 case. Please refer to Section 1.4 for address remapping rules for the x16 case
2) any command between 11h and 81h is prohibited except 70h, 78h and FFh
Figure 20: Multiple plane page program (traditional protocol)
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Cycle Type
CMD ADDR ADDR ADDR ADDR ADDR
DIN
DIN
DIN
DIN
CMD
D0A
D1A
...
DnA
11h
tADL
DQx
80h
C1A
C2A
R1A
R2A
R3A
tADL
tIPBSY
SR[6]
A
Cycle Type
CMD ADDR ADDR ADDR ADDR ADDR
DIN
DIN
DIN
DIN
CMD
D0B
D1BA
...
DnB
10h
tADL
DQx
80h
C1B
C2B
R1B
R2B
R3B
tADL
tPROG
SR[6]
Figure 21 : Multiple plane page program (ONFI 1.0 protocol)
NOTES :
C1A-C2A Column address for page A. C1A is the least significant byte.
R1A-R3A Row address for page A. R1A is the least significant byte.
D0A-DnA Data to program for page A.
C1B-C2B Column address for page B. C1B is the least significant byte.
R1B-R3B Row address for page B. R1B is the least significant byte.
D0B-DnB Data to program for page B.
Same restrictions on address of pages A and B, and allowed commands as Figure 20 apply
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Figure 22: Multiple plane copy back program (traditional protocol)
NOTE: the figure refers to x8 case. Please refer to Section 1.4 for address remapping rules for the x16 case
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
CLE
WE
ALE
RE
IOx
00h
C1 A
C2 A
R1A R2A R3A
35h
00h
C1B
C2 B
R1B
R2B
R3B
35h
tR
SR[6]
tR
Figure 23: Multiple plane copy back read (ONFI 1.0 protocol)
NOTES:
C1A-C2A
R1A-R3A
C1B-C2B
R1B-R3B
Column address for page
Row address for page A.
Column address for page
Row address for page B.
A
A. C1A is the least significant byte.
R1A is the least significant byte.
B. C1B is the least significant byte.
R1B is the least significant byte.
CLE
WE
ALE
RE
IOx
85h
C1 C
C2 C
R1C R2C R3C
85h
11h
C1D
C2D
R1D
R2D
t IPBSY
SR[6]
R3D
10h
t PROG
A
Figure 24: Multiple plane copy back program (ONFI 1.0 protocol)
NOTES:
C1C-C2C
R1C-R3C
D0C-DnC
C1D-C2D
R1D-R3D
D0D-DnD
Column address for page C. C1A is the least significant byte.
Row address for page C. R1A is the least significant byte.
Data to program for page C.
Column address for page D. C1B is the least significant byte.
Row address for page D. R1B is the least significant byte.
Data to program for page D.
Same restrictions on address of pages C and D, and allowed commands as Figure 21 apply
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Two-Plane Block Erase Operation
CLE
CE
tWC
tWC
WE
tWB
tWHR
tBERS
ALE
RE
I/Ox
60h
Row Add1 Row Add2 Row Add3
60h
Row Add1 Row Add2 Row Add3
Row Address
D0h
I/O0
70h
Row Address
R/B
Busy
Block Erase Setup Command1
Block Erase Setup Command2
Erase Confirm Command
Read Status Command
I/O 1 = 0 Successful Erase
I/O 1 = 1 Error in plane
Ex.) Address Restriction for Two-Plane Block Erase Operation
R/B
I/O0~7
tBERS
60h
Address
60h
Address
Row Add1,2,3
Row Add1,2,3
A12 ~ A17 : Fixed ‘Low’
A18
: Fixed ‘Low’
A19 ~ A28 : Fixed ‘Low’
A12 ~ A17 : Fixed ‘Low’
A18
: Fixed ‘High’
A19 ~ A28 : Valid
D0h
70h
Figure 25: Multiple plane block erase (traditional protocol)
NOTE: the figure refers to x8 case. Please refer to Section 1.4 for address remapping rules for the x16 case
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H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
CLE
WE
ALE
RE
IOx
60h
R1 A
R2A
R3A D1h
60h
t
SR[6]
R1B
R2B
R3B
D0h
t
BERS
IEBSY
Figure 26: Multiple plane block erase (ONFI 1.0 protocol)
NOTES:
R1A-R3A Row address for block on plane 0. R1A is the least significant byte.
R1B-R3B Row address for block on plane 1. R1B is the least significant byte.
Same restrictions on address of blocks on plane 0(A) and 1(B) and allowed commands as Figure 24 apply
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_000000
APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Read ID Operation
CLE
CE
WE
tAR
ALE
RE
tREA
90h
I/Ox
Device
code
ADh
00h
Read ID Command Address 1 Cycle
3rd cyc.
4th cyc.
5th cyc.
Maker Code Device Code
Figure 27: ID Read
CLE
WE
ALE
RE
IO0~7
tWHR
90h
20h
4Fh
4Eh
46h
49h
tREA
Figure 28: ONFI signature timing diagram
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
WE
ALE
CLE
RE#
FF
DQ7:0
tRST
RB#
Figure 29: Reset operation timing
As defined for
Read
Cycle Type
CMD
CMD
DQx
30h
31h
tWB
SR[6]
CMD
DOUT
...
31h
D0
D0
tWB
tR
DOUT DOUT DOUT
tRR
tCBSYR
Dn
tWB
tRR
tCBSYR
Figure 30: "sequential" read cache timings, start (and continuation) of cache operation
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Figure 31: "random" read cache timings, start (and continuation) of cache operation
Figure 32 : read cache timings, end of cache operation
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_000000
APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Vcc(min)
Vcc(min)
Vth
Vth
VCC
0V
don’t
care
don’t
care
CE
WP
VIH
5ms max
VIL
Operation
VIL
100u smax
Invalid
don’t
care
ReadyBusy
Figure 33: Power on and Data Protection timings
NOTE: VTH = 1.2 Volt for 1.8 Volt Supply devices: 1.8 Volt for 3.0 Volt Supply devices.
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Rp
Vcc
1.8V device - VOL : 0.1V. VOH : VCC-0.1V
2.7V device - VOL : 0.4V. VOH : VCCQ-0.4V
3.3V device - VOL : 0.4V. VOH : 2.4V
ibusy
Ready
VCC
R/B
open drain output
VOL : 0.4V, VOH : 2.4V
CL
VOH
VOL
Busy
tf
tr
GND
Device
Rp vs tr, tf & Rp vs ibusy
@ Vcc = 2.7V, Ta = 25°C, CL=30pF
@ Vcc = 1.8V, Ta = 25°C, CL=30pF
2.3
ibusy
200n
1.70
0.85
100n
30
tr 60
0.57
1m 100n
tr
60
1.70
1.70
2.3 tf
1.70
90
2.3
2.3
1K
2K
3K
2.3
2m
0.8
tr
1m
0.6
0.55
1.8 tf
1.8
1K
2K
1.8
1.8
3K
4K
tr,tf [c]
1K
4K
50
1m 100n
tr,tf [c]
tr,tf [c]
150
100
120
0.75
0.43
1.70 tf
2m 200n
ibusy [A]
3m
1.2
1.1
30
200
ibusy
ibusy
2m 200n
120
90
2.4
3m 300n
3m 300n
300n
@ Vcc = 3.3V, Ta = 25°C, CL=50pF
ibusy [A]
ibusy [A]
2K
3K
4K
Rp(ohm)
Rp(ohm)
Rp(ohm)
Rp value guidence
Rp (min. 1.8V part) =
Rp (min. 2.7V part) =
Vcc (Max.) - VOL (Max.)
,OL + ™,L
Vcc (Max.) - VOL (Max.)
,OL + ™,L
Rp (min. 3.3V part) =
Vcc (Max.) - VOL (Max.)
,OL + ™,L
1.85V
=
P$™,L
1.8V version
2.5V
=
P$™,L
3.2V
=
P$™,L
3.0V version
where IL is the sum of the input currnts of all devices tied to the R/B pin.
Rp(max) is determined by maximum permissible limit of tr
Figure 34: Ready/Busy Pin electrical application
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
WE
WE
tWW
IOx
tWW
80h
10h
IOx
WP
WP
R/B
R/B
80h
10h
Figure 35: program Enabling / Disabling through WP# handling
WE
WE
tWW
IOx
tWW
60h
D0h
IOx
WP
WP
R/B
R/B
60h
D0h
Figure 36: Erase Enabling / Disabling through WP# handling
CLE
WE
ALE
RE
IO0-7
ECh
00h
P00
...
P10
P01
P11
...
tR
R/B
Figure 37: Read Parameter Page timings
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
CLE
WE
tWHR
ALE
RE
IO0-7
70h
SR
tREA
Figure 38: Read Status Timings
CLE
tWHR
WE
ALE
RE
IO0-7
78h
R1
R2
R3
tAR
SR
Figure 39: Read Status Enhanced timings
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
CLE
CE
tWC
tWC
WE
tWB
ALE
RE
Col.
Add1
80h
IOx
Col.
Add2
Column Address
Row.
Add1
Row.
Add2
Row.
Add3
Din
N
Din
M
15h
Col.
Add1
80h
Row Address
Col.
Add2
Row.
Add1
Column Address
Row.
Add2
Row.
Add3
Din
N
Din
M
15h
Row Address
R/B
tPCSBY
tCBSYR
1
CLE
CE
tWC
WE
ALE
RE
tADL
IOx
80h
Col.
Add1
Col.
Add2
Column Address
Row.
Add1
Row.
Add2
Row.
Add3
Din
N
Din
M
10h
70h
I/OQ
Row Address
R/B
1
tPROG
Figure 40: Cache program
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Command Input
Address Input
80h
11h
Data Input
A13~A17:Fixed”Low”
A18:Fixed”Low”
A19~A31:Fixed”Low”
RY/BY
Data Input
Address Input
81h
15h
A13~A17:Valid
A18:Fixed”Low”
A19~A31:Fixed”Low”
tDBSY
tPCBSY
1
Return to 1
Repeat a max of 63 times
Command Input
Address Input
80h
11h
Data Input
A13~A17:Fixed”Low”
A18:Fixed”Low”
A19~A31:Fixed”Low”
RY/BY
Data Input
Address Input
81h
10h
A13~A17:Valid
A18:Fixed”Low”
A19~A31:Fixed”Low”
tDBSY
tPROG
1
CLE
CE
tWC
tWB
WE
ALE
tWB
RE
tADL
IOx
Col.
Add1
80h
Col.
Add2
Row
Add1
Column Address
Row
Add2
Row
Add3
tADL
Din
N
Din
M
11h
81h
Row Address
Col.
Add1
Col.
Add2
Row
Add1
Row
Add2
Row
Add3
Din
N
Din
M
15h
Row Address
Column Address
R/B
tDBSY
tCBSY
1
CLE
CE
tWC
tWB
WE
ALE
RE
80h
IOx
Col.
Add1
Row
Add1
Col.
Add2
Column Address
Row
Add2
Row
Add3
Din
N
Din
M
81h
11h
Row Address
Col.
Add1
Col.
Add2
Row
Add1
Column Address
Row
Add2
Row
Add3
Din
N
Din
M
10h
70h
I/OQ
Row Address
R/B
1
tPROG
tDBSY
Figure 41: multi-plane cache program (traditional protocol)
NOTE:
1) the figure refers to x8 case. Please refer to Section 1.4 for address remapping rules for the x16 case
2) Read Status register (70h) is used in the figure. Read Status Enhanced (78h) can be also used
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_000000
APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
Command Input
Address Input
80h
11h
Data Input
A13~A17:Fixed”Low”
A18:Fixed”Low”
A19~A31:Fixed”Low”
RY/BY
Data Input
Address Input
80h
15h
A13~A17:Valid
A18:Fixed”Low”
A19~A31:Fixed”Low”
tDBSY
tPCBSY
1
Return to 1
Repeat a max of 63 times
Command Input
Address Input
80h
11h
Data Input
A13~A17:Fixed”Low”
A18:Fixed”Low”
A19~A31:Fixed”Low”
RY/BY
Data Input
Address Input
80h
10h
A13~A17:Valid
A18:Fixed”Low”
A19~A31:Fixed”Low”
tDBSY
tPROG
1
CLE
CE
tWC
tWB
WE
ALE
tWB
RE
tADL
IOx
Col.
Add1
80h
Col.
Add2
Row
Add1
Column Address
Row
Add2
Row
Add3
tADL
Din
N
Din
M
11h
80h
Row Address
Col.
Add1
Col.
Add2
Row
Add1
Column Address
Row
Add2
Row
Add3
Din
N
Din
M
15h
Row Address
R/B
tDBSY
tCBSY
1
CLE
CE
tWC
tWB
WE
ALE
RE
80h
IOx
Col.
Add1
Row
Add1
Col.
Add2
Column Address
Row
Add2
Row
Add3
Din
N
Din
M
80h
11h
Row Address
Col.
Add1
Col.
Add2
Row
Add1
Column Address
Row
Add2
Row
Add3
Din
N
Din
M
10h
F1h
I/OQ
Row Address
R/B
1
tPROG
tDBSY
Figure 42: multi-plane cache program (ONFI protocol)
NOTE:
3) the figure refers to x8 case. Please refer to Section 1.4 for address remapping rules for the x16 case
4) Read Status register (70h) is used in the figure. Read Status Enhanced (78h) can be also used
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
7 Package Mechanical
H
'
$
$
%
$
Į
/
',(
(
(
&
&3
Figure 43. 48-TSOP1 - 48-lead Plastic Thin Small Outline, 12 x 20mm, Package Outline
Symbol
Millimeters
Typ
Min
A1
0.10
0.05
A2
1.00
B
0.22
inches
Typ
Min
0.15
0.004
0.002
0.006
0.95
1.05
0.039
0.037
0.041
0.17
0.27
0.009
0.007
0.001
0.10
0.21
A
Max
1.20
C
CP
Max
0.047
0.004
0.08
0.008
0.003
D
12.00
11.90
12.10
0.472
0.468
0.476
E
20.00
19.80
20.20
0.787
0.779
0.795
E1
18.40
18.30
18.50
0.724
0.720
0.728
e
0.50
-
-
0.020
-
L
0.60
0.50
0.70
0.024
0.020
0.028
a
3°
0°
5°
3°
0°
5°
Table 29: 48-TSOP1 - 48-lead Plastic Thin Small Outline, 12 x 20mm, Package Mechanical Data
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_000000
APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
x8
R
R
R
R/B4#
R/B3#
R/B2#
R/B1#
RE#
CE1#
CE2#
R
Vcc
Vss
CE3#
CE4#
CLE
ALE
WE#
WP#
R
R
R
R
R
x8
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
48
47
46
45
44
43
42
41
40
39
38
37
36
35
34
33
32
31
30
29
28
27
26
25
R/Vss
R
R
R
IO7
IO6
IO5
IO4
R
R/Vcc
R
Vcc
Vss
R
R/Vcc
R
IO3
IO2
IO1
IO0
R
R
R
R/Vss
Figure 44: ONFI 1.0 TSOP and WSOP connection (x8 multi CE# / multi RyBYconfiguration) (*)
NOTES:
1) TSOP48 "ONFI" is supported only for x8 I/O configuration
2) Pins marked in Red are used in case a quad stack die is implemented with separated RyBy and CE# pins. If this is not
the case, CE# for the stack is pin 9, and RyBy# for the stack is pin 7, and pins marked in Red Bold are Reserved ("R")
3) this package is supported only if die is mounted OVER package frame
7.1 Power consumptions and pin capacitance for allowed stacking configurations
Table 28 reports the power consumptions related to the single chip case. When multiple dice are stacked in the same
package the power consumption of the stack will increase according to the nr of chips of it. As an example, the standby
current is the sum of the standby currents of all the chips, while the active power consumption depends on the nr of chips
concurrently executing different operations.
Similarly, Table 26 reports the pin capacitance for the single chip case. When multiple dice are stacked in the same package the pin/ball capacitance for the single input and the single input/output of the combo package must be calculated
based on the number of chips sharing that input or that pin/ball.
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_000000
APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
8 Application notes and comments
8.1 System Interface using CE# don't care
To simplify system interface, CE# may be un-asserted during data loading or sequential data-reading as shown below. By
operating in this way, it is possible to connect NAND Flash to a microprocessor.
Contrary to standard Nand, CE# don't care devices do not allow sequential read function.
CLE
CE don’t-care
CE
WE
ALE
I/Ox
80h
Start Add.(5Cycle)
Data Input
Data Input
10h
Figure 45: Program Operation with CE# don't-care.
&/(
,IVHTXHQWLDOURZUHDGHQDEOHG
&(PXVWEHKHOGORZGXULQJW5
&(GRQ¶WFDUH
&(
5(
$/(
5%
W5
:(
,2[
K
6WDUW$GG &\FOH
K
'DWD2XWSXW VHTXHQWLDO
Figure 46: Read Operation with CE# don't-care.
Rev 1.4 / OCT. 2010
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
8.2 System Bad Block Replacement
Over the lifetime of the device additional Bad Blocks may develop. In this case each bad block has to be replaced by
copying the data to a valid block. These additional Bad Blocks can be identified as attempts to program or erase them will
return "fail" after Read Status Register.
The failure of a page program operation does not affect the data in other pages in the same block, thus the block can be
replaced by re-programming the current data and copying the rest of the replaced block to an available valid block.
Refer to Table 30 and Figure 47 for the recommended procedure to follow if an error occurs during an operation.
Operation
Recommended Procedure
Erase
Block Replacement
Program
Block Replacement
Read
ECC
Table 30: Block Failure
(2)
Data
th
n page
Data
th
Failure (1)
n page
(3)
FFh
FFh
Buffer memory of the controller
Figure 47 : Bad Block Replacement
NOTE:
1. An error occurs on Nth page of the Block A during program or erase operation.
2. Data in Block A is copied to same location in Block B which is valid block.
3. Nth page of block A which is in controller buffer memory is copied into Nth page of Block B
4. Bad block table should be updated to prevent from erasing or programming Block A
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APCPCWM_4828539:WP_0000001WP_0000001
1
H27(U_S)4G8_6F2D
4 Gbit (512M x 8 bit) NAND Flash
8.3 Bad Block Management
Devices with Bad Blocks have the same quality level and the same AC and DC characteristics as devices where all the
blocks are valid. A Bad Block does not affect the performance of valid blocks because it is isolated from the bit line and
common source line by a select transistor. The devices are supplied with all the locations inside valid blocks
erased(FFh). The Bad Block Information is written prior to shipping. Any block where the 1st Byte in the spare area of
the 1st or 2nd th page (if the 1st page is Bad) does not contain FFh is a Bad Block. The Bad Block Information must be
read before any erase is attempted as the Bad Block Information may be erased. For the system to be able to recognize the Bad Blocks based on the original information it is recommended to create a Bad Block table following the flowchart shown in Figure 48. The 1st block, which is placed on 00h block address is guaranteed to be a valid block.
67$57
%ORFN$GGUHVV
%ORFN
,QFUHPHQW
%ORFN$GGUHVV
'DWD ))K"
1R
8SGDWH
%DG%ORFNWDEOH
<HV
/DVW
EORFN"
1R
<HV
(1'
Figure 48: Bad Block Management Flowchart
NOTE :
1. Check FFh at 1st Byte in the spare area of the 1st or 2nd th page (if the 1st page is Bad).
Rev 1.4 / OCT. 2010
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