Comparing Spansion S25FL-S (1.8V VIO) with Macronix MX25U-35F/G

APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
1. Introduction
Macronix offers MX25U_35F*1 and MX25U_35G*2 1.8V serial flash in densities from 128Mb to 512Mb for a
diversity of low voltage applications. Spansion only offers 3V S25FL_S devices with low voltage I/O drivers as
their solution for low voltage applications. The Spansion solution requires two power supplies, one for core
Vcc and the other to supply I/O drivers. It is much simpler to use the Macronix flash single 1.8V power supply
system solution. The Macronix single supply solution saves board space and simplifies layout. Some
applications may have previously designed in the Spansion solution. This application note explains how to
compare the Spansion S25FL_S 1.8V VIO*3 devices with the Macronix MX25U_35F/G series flash products in
the 16-SOP package.
The information in this document is based on datasheets listed in Section 8. Newer versions of the
datasheets may override the contents of this document.
Note:
1. MX66U51235F is 2-die solution and is included in MX25U_35F family which is referenced in this document.
2. MX25U_35G is currently under development. As a final datasheet is not yet available, the MX25U_35G family will be included in
the MX25U_35F family for purposes of discussion in this document.
3. VIO range focuses on 1.65V ~ 2.0V.
2. Feature Comparison
While the Macronix and Spansion devices are interchangeable, there are differences which need to be
accommodated such as memory structure and Page Program buffer size (Table 2-1).
In systems using Spansion’s solution, I/O voltage refers to VIO range; not the 3V core VCC level.
Table 2-1: Features
Feature
Supply Voltage Range
I/O Voltage Range
Sector Size
Page Program
S/W Reset Command
Hold# Pin
Reset# Pin
Manufacturer ID
128Mb
Device ID
256Mb
512Mb
Package
Macronix MX25U_35F
1.65V ~ 2.0V
4KB/32KB/64KB
256Byte
Yes
Yes
C2h
25h/38h
25h/39h
25h/3Ah
16-SOP (300mil)
Spansion S25FL_S
2.7V~3.6V
1.65~3.6V*1
64KB w/ 4KB boot sector/256KB*1
256Byte/512Byte
Yes
Yes
Yes
01h
02h/18h
02h/19h
02h/20h
16-SOP (300mil)
Notes:
1. In this application note, VIO range is 1.65V ~ 2.0V; not the full range.
2. MS25FL128S and S25FL256S have an ordering option to specify uniform 256KB blocks.
with uniform 256KB blocks.
P/N: AN0213
1
S25FL512S only comes
Ver. 1 Jan 03, 2013
APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
3. DC Characteristics
In general, VIL, VIH, VOL, and VOH levels depend on VCC range in single power systems. Table 3-1
compares VCC and I/O voltage levels between the two families. Both families have a similar I/O voltage
ranges with VIO = 1.65V ~ 2.0V. Please see the appropriate device datasheet for a complete parameter list
containing more detailed information.
Table 3-1: Input / Output Voltage
Parameter / Symbol
VCC range
VIO Voltage
128Mb
Input Low
Voltage / VIL 256Mb–512Mb
128Mb
Input High
Voltage / VIH 256Mb–512Mb
Output Low Voltage / VOL
Output High Voltage / VOH
Macronix MX25U_35F
1.65V ~ 2.0V
-0.5V (Min.) / 0.2VCC (Max.)
-0.5V (Min.) / 0.8V (Max.)
0.8VCC (Min.) / VCC+0.4V (Max.)
0.7VCC (Min.) / VCC+0.4V (Max.)
0.2V (Max.)
VCC-0.2V (Min.)
Spansion S25FL_S
2.7V ~ 3.6V
1.65V ~ VCC+200mV
-0.5V (Min.) / 0.2VIO(Max.)
-0.5V (Min.) / 0.2VIO(Max.)
0.7VIO (Min.) / VIO+0.4V (Max.)
0.7VIO (Min.) / VIO+0.4V (Max.)
0.15VIO (Max.)
0.85VIO (Min.)
Macronix MX25U_35F
15mA @ 84MHz (Max.)
30mA @ 84MHz (Max.)
80uA (Max.)
100uA (Max.)
200uA (Max.)
20uA (Max.)
40uA (Max.)
25mA (Max.)
Spansion S25FL_S
16mA @ 50MHz (Max.)
16mA @ 50MHz (Max.)
100uA (Max.)
100uA (Max.)
100uA (Max.)
100mA (Max.)
Table 3-2: Read / Write Current
Parameter
Read Current @
1xI/O
Standby Current
Deep Power
Down Current
Write Current
P/N: AN0213
128Mb, 256Mb
512Mb
128Mb
256Mb
512Mb
128Mb, 256Mb
512Mb
2
Ver. 1 Jan 03, 2013
APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
4. Performance Comparison
Tables 4-1 and 4-2 show MX25U_F series and S25FL_S with 1.8V VIO series AC performance.
Table 4-1: Read Performance
Parameter
Density
128Mb, 512Mb
Normal Read (Max.)
256Mb
128Mb, 512Mb
Fast Read (Max.)
256Mb
128Mb
*4
Multi I/O Read (Max.)
256Mb, 512Mb
128Mb, 256Mb
tCLQV / tV (Max.)
@ 15pf
512Mb
128Mb, 256Mb
tCLQV / tV (Max.)
@ 30pf
512Mb
Macronix MX25U_35F
55MHz
50MHz
104MHz
133MHz*1
104MHz
84MHz*2
6ns
9ns
8ns
12ns
Spansion S25FL_S
50MHz
50MHz
66MHz
66MHz
66MHz*3
66MHz*3
12.0ns
12.0ns
14.5ns
14.5ns
Notes:
1. MX25U_35F Fast Read runs at 104MHz with 8 dummy cycles (default); 133MHz with 10 dummy cycles.
2. MX25U_35F Quad I/O (1-4-4) runs at 84MHz with 6 dummy cycles (default); 104Hhz with 8 dummy cycles;
3. Quad read (1-4-4) only reaches 50MHz
4. Multi I/O is including 2xRead, 4xRead, Dual output, and Quad output mode
Table 4-2: Write Performance
Parameter
4KB
32KB
Erase
64KB
256KB
128Mb
Chip Erase
256Mb
512Mb
Byte
Program
Page
Write/Erase Cycles (Endurance)
Macronix MX25U_35F
60ms
250ms
500ms
-72s
200s
200s
12us
1200us
100,000
Spansion S25FL_S
130ms
-130ms
520ms
33s
66s
103s
-250us(256B) / 340us(512B)
100,000
Note: All values in Table 4-2 are typical.
P/N: AN0213
3
Ver. 1 Jan 03, 2013
APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
5. Hardware Consideration
The pin assignments of the 16-SOP packages are identical, with the exception of the VIO and
HOLD# pin functions which are unavailable on the Macronix chips. The 16-SOP pin assignments for
the Macronix and Spansion devices are shown below.
RESET#/SIO3
16
SCLK
3
15
14
SI/SIO0
NC
4
NC
5
NC
VCC
1
2
NC
DNU/SIO3
HOLD#/IO3
1
16
SCK
VCC
2
15
SI/IO0
NC
RESET#
3
14
VIO
NC
DNU
4
13
NC
NC
DNU
5
12
DNU
11
NC
RFU
6
11
DNU
7
10
GND
CS#
7
10
VSS
8
9
SO/IO1
8
9
16
SCLK
15
14
SI/SIO0
VCC
1
2
NC
RESET#
3
13
NC
NC
4
12
NC
NC
5
MX25U_35F 13
256Mb, 12
6
11
NC
NC
6
CS#
7
10
GND
CS#
SO/SIO1
8
9
SO/SIO1
MX25U12835F
Reset# signal is internal pull high
WP#/SIO2
WP#/SIO2
Reset# signal is internal pull high
Recommend DNU connecting to VCC
S25FL_S
WP# /IO2
DNU means Do Not Use
16-SOP (300mil)
When comparing the S25FL_S (1.8V VIO) with Mx25U_35F, take care to level-shift the 3.3V core
supply down to 1.8V to match the I/O supply.
I/O pin definition and locations are the same, with the following three differences:
1) Pin 14 of the S25FL_S is a VIO pin, but on the MX25U_35F it is NC pin. It is fine to connect
the NC pin to the 1.8V voltage.
2) S25FL_S offers a Hold function on Pin1, but the MX25U_35F doesn’t support this function. Instead
Macronix offers a Reset function on the 128Mb density flash and has a DNU pin on the 256Mb and
512Mb devices which is recommended to be connected to the 1.8V VCC with a pull-up resistor.
3) S25FL_S has Reset function on Pin3. Macronix also offers this function in density 256Mb and
512Mb. However, the 128Mb has this function on Pin1.
P/N: AN0213
4
Ver. 1 Jan 03, 2013
APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
6. Software Considerations
Basic command sets of both flash families are similar. Notable differences are highlighted in blue in Table 6-1.
See the Macronix datasheet for a complete list of commands and a description of their functions.
Table 6-1: Command Comparison
Instruction
Type
Read ID
Read
Write
Register
Others
Command
Instruction
Macronix
Spansion
MX25U_35F
S25FL_S
RDID
REMS
READ
FAST_READ
2READ
DREAD
4READ
QREAD
WREN
WRDI
PP
SE
BE(32KB)
BE(64KB)
CE
RDSR
RDCR
WRSR
RDSCUR
WRSCUR
RSTEN
RST
PGM/ERS
Suspend
PGM/ERS
Resume
RDSFDP
DP
RDP
Description
Op-code
Macronix
Spansion
MX25U_35F
S25FL_S
RDID
READ_ID
READ
FAST_READ
DIOR
DOR
QIOR
QOR
WREN
WRDI
PP
P4E
SE
BE
RDSR1
RDSR2
RDCR
WRR
RESET
Read Identification
Read Electronic Manufacturer Signature
Read Data Bytes
Read Data Bytes at Higher Speed
2xI/O Read
1I/2O Read
4xI/O Read
1I/4O Read
Write Enable
Write Disable
Page Program
Sector Erase
Block Erase 32KB
Block Erase 64KB/256KB
Chip Erase
Read Status Register
Read Status Register-2
Read Configuration Register
Write Status & Configuration Registers
Read Security Register
Write Security Register
Reset Enable
Software Reset Memory
9Fh
90h
03h
0Bh
BBh
1
3Bh*
EBh
1
6Bh*
06h
04h
02h
20h
52h
D8h
60 or C7h
05h
15h
01h
2Bh
2Fh
66h
99h
9Fh
90h
03h
0Bh
BBh
3Bh
EBh
6Bh
06h
04h
02h
20h
2
D8h*
60 or C7h
05h
07h
35h
01h
F0h
PGSP/ERSP
Program/Erase Suspend
B0h
85h/75h
PGRS/ERRS
Program/Erase Resume
30h
8Ah/7Ah
-
Read SFDP
Deep Power Down
Release from Deep Power Down
5Ah
B9h
ABh
5Ah
-
*3
Notes:
1. MX25U12835F doesn’t support Dual out read (1-1-2) and Quad out read (1-1-4) function.
2. The block erase command for 64KB and 256KB is the same.
3. S25FL512S supports SFDP and CFI, but the S25FL128S and S25FL256S support CFI only. Macronix supports SFDP
on all three densities.
P/N: AN0213
5
Ver. 1 Jan 03, 2013
APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
For Spansion devices configured with the hybrid mix of 4KB sectors and 64KB blocks, no software adjustment
will be required. The MX25U_35F sector and block organization is a superset of the Spansion hybrid memory
organization and can match sector for sector and block for block. Spansion devices using uniform 256KB
blocks will require software adjustments to accommodate the smaller blocks provided by the MX25U_35F
devices.
6-1. Status Register, Configuration Register, and Security Register
Both devices use registers to configure the flash for operation modes, but there are some differences which
may require minor algorithm modifications depending on application.
A register comparison is shown in Table 6-2, Table 6-3, and Table 6-4. If a detailed functional description of
register bits is required please refer to the datasheets listed in section 8.
Table 6-2: Status Register
Register Bit
Bit0
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
Bit7
Macronix MX25U_35F
WIP; 1=write operation
WEL; 1=write enable
BP0; BP protection
BP1; BP protection
BP2; BP protection
BP3; BP protection
QE; 1=Quad mode enable
SRWD; 1=SR write disable
Spansion S25FL_S
WIP; 1=write operation
WEL; 1=write enable
BP0; BP protection
BP1; BP protection
BP2; BP protection
E_ERR; 1=erase fail
P_ERR; 1=program fail
SRWD; 1=SR write disable
Table 6-3: Configuration Register
Register Bit
Bit0
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
Bit7
Macronix MX25U_35F
ODS0; Output driver strength
ODS1; Output driver strength
ODS2; Output driver strength
TB; 1=Bottom area protect
Reserved
4 BYTE; 1=4byte address*2
DC0; Dummy cycle*2
DC1; Dummy cycle*2
Spansion S25FL_S
FREEZE; 1=BPx write disable
QUAD; 1=Quad mode enable
TBPARM; 1= Top parameter sector*1
BPNV; 1=BPx is Volatile
RFU
TBPROT; 1=boot array protect
LC0; Latency cycle
LC1; Latency cycle
Notes:
1. Bit2 of Configuration Register is RFU for S25FL_S with uniform 256KB structure.
2. Bit5 – Bit7 of Configuration Register is reserved for MX25U12835F.
P/N: AN0213
6
Ver. 1 Jan 03, 2013
APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
Table 6-4: Security Register / Status Register 2
Register Bit
Bit0
Bit1
Bit2
Bit3
Bit4
Bit5
Bit6
Bit7
Macronix MX25U_35F
4Kb Secured OTP; 1=factory lock
LDSO; 1=OTP lock down
PSB; 1=Program suspend
ESB; 1=Erase suspend
Reserved
P_FAIL; 1=Program fail
E_FAIL; 1=Erase fail
WPSEL; 1=Individual WP
Spansion S25FL_S
PS; 1=Program suspend
ES; 1=Erase suspend
RFU
RFU
RFU
RFU
RFU
RFU
6-2. Manufacturer and Device Identification Numbers
Manufacturer ID and Device ID numbers are different allowing for software device identification.
Table 6-5: Manufacturer and Device ID
Command Type
128Mb
RDID 9Fh
256Mb
512Mb
128Mb
REMS 90h
256Mb
512Mb
Macronix MX25L_35F
C2h/25h/38h
C2h/25h/39h
C2h/25h/3Ah
C2h/38h
C2h/39h
C2h/3Ah
Spansion S25FL_S
01h/20h/18h
01h/02h/19h
01h/02h/20h
01h/17h
01h/18h
01h/19h
Macronix defines 1.8V serial flash as another flash family, so Device ID of the1.8V device is different from
Device ID of 3V device. The ID code must be modified in software, in order to use MX25U_35F in the same
system as S25FL_S with 1.8V VIO.
7. Summary
The Macronix MX25U_35F, MX25U_35G and Spansion S25FL_S with 1.8V VIO have similar commands,
functions, and features. Additionally, the 16-SOP package has similar footprint and pin out definitions.
Hardware modification may be needed to accommodate RESET# pin to HOLD# pin changes, if Quad IO
mode is not used.
If common features are used in standard traditional modes software modification may still be necessary to
accommodate changes to Manufacturer and Device IDs and register locations of Program and Erase error
flags.
8. References
Table 8-1 shows the datasheet versions used for comparison in this application note. For the most current,
detailed specification, please refer to the Macronix Website at http://www.macronix.com
P/N: AN0213
7
Ver. 1 Jan 03, 2013
APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
Table 8-1: Datasheet Version
Datasheet
MX25U12835F
MX25U25635F
MX66U51235F
S25FL128S/256S
S25FL512S
Location
Website
Website
Internal using
Website
Website
Data Issued
AUG. 31, 2012
DEC. 14, 2012
NOV. 13, 2012
JUL. 12, 2012
MAR. 2, 2012
Version
Rev. 1.1
Rev. 1.0
Rev. 0.00
Rev. 05
Rev. 02
9. Appendix
Table 9-1 shows part number and package information cross reference between Macronix
MX25U_35F and Spansion S25FL_S with 1.8V VIO.
Table 9-1: Part Number Cross Reference
Density
Macronix Part No.
Spansion Part No.
S25FL128SAGMFIR0/R1
*2
Package
Dimension
16-SOP
300 mil
128Mb
MX25U12835FMI-10G
256Mb
MX25U25635FMI-10G
S25FL256SAGMFIR0/R1
16-SOP
300 mil
MX66U51235FMI-10G
S25FL512SAGMR1
16-SOP
300 mil
*1
512Mb
Note:
1.
MX66U51235F is 2-die solution and is included in MX25U_35F family which is referenced in this document.
2.
R0: 16-SOP with Reset#, VIO & 64KB sector; R1: 16-SOP with Reset#, VIO & 256KB sector.
10. Revision History
P/N: AN0213
Revision
Description
Date
1.0
Initial Release
JAN. 03, 2013
8
Ver. 1 Jan 03, 2013
APPLICATION NOTE
Comparing Spansion S25FL_S (1.8V VIO) with Macronix MX25U_35F/G
Except for customized products which have been expressly identified in the applicable agreement,
Macronix's products are designed, developed, and/or manufactured for ordinary business, industrial,
personal, and/or household applications only, and not for use in any applications which may, directly or
indirectly, cause death, personal injury, or severe property damages. In the event Macronix products are
used in contradicted to their target usage above, the buyer shall take any and all actions to ensure said
Macronix's product qualified for its actual use in accordance with the applicable laws and regulations; and
Macronix as well as it’s suppliers and/or distributors shall be released from any and all liability arisen
therefrom.
Copyright© Macronix International Co., Ltd. 2011~2012. All rights reserved, including the trademarks and
tradename thereof, such as Macronix, MXIC, MXIC Logo, MX Logo, Integrated Solutions Provider, NBit,
Nbit, NBiit, Macronix NBit, eLiteFlash, HybridNVM, HybridFlash, XtraROM, Phines, KH Logo, BE-SONOS,
KSMC, Kingtech, MXSMIO, Macronix vEE, Macronix MAP, Rich Au-dio, Rich Book, Rich TV, and FitCAM.
The names and brands of third party referred thereto (if any) are for identification purposes only
For the contact and order information, please visit Macronix’s Web site at: http://www.macronix.com
P/N: AN0213
9
Ver. 1 Jan 03, 2013
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