APPLICATION NOTE
Macronix MX25U6435E/3235E to
MX25U6435F/3235F Migration Guide
1. Introduction
This application note introduces the related notices for migrating of following products.
•
•
To MX25U6435F from MX25U6435E
To MX25U3235F from MX25U3235E
The document does not provide detailed information on individual devices, but highlights the similarities and
differences between them. The comparison covers the general features, performance, command set and
device ID.
MX25U6435F and MX25U3235F support new features, "n" Byte Program ("n" = how many bytes to program)
and Hardware Reset# pin. These functions provide user better ways to control Flash memory efficiently.
The information provided is based on the data available at the time. MX25U6435F and MX25U3235F
datasheets may override this application note if there is a different description for the same specification in
the datasheets.
Please refer to the contents and comparison tables below for more details.
2. General Features
2-1. Feature Comparison
MX25U6435F, MX25U3235F products provide following new features.
1. If user needs to program data that is less than 256 bytes, "n" Byte Program ("n" = how many bytes to
program) provides user to program the data at the requested address without affecting data on other
addresses of the same page (256 bytes per page).
2. The Hardware Reset# pin provides user additional method to control memory.
For the differences between these products, please check the comparison tables below for the details.
P/N: AN0124
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APPLICATION NOTE
Table 2-1. Feature Comparison for 64Mb Products
Parameter\Product
MX25U6435E
MX25U6435F
8-WSON(6x5mm)
8-SOP(200mil)
8-WSON(6x5mm)
Fast Read
104MHz
104MHz
Read
33MHz
50MHz*
84MHz
84MHz
104MHz**
104MHz**
"n" Byte Program
No
Yes
Hardware Reset# pin
No
Yes
MX25U3235E
MX25U3235F
Fast Read
104MHz
104MHz
Read
33MHz
50MHz*
84MHz
84MHz
104MHz**
104MHz**
"n" Byte Program
No
Yes
Hardware Reset# pin
No
Yes
Package
Clock Rate
2READ (2 x I/O read
command)
4READ (4 x I/O read
command)
Table 2-2. Feature Comparison for 32Mb Products
Parameter\Product
Clock Rate
2READ (2 x I/O read
command)
4READ (4 x I/O read
command)
Note:
* The maximum clock rate=33MHz when reading secured OTP area.
**When dummy cycle=4 (in both SPI & QPI mode), maximum clock rate=84MHz; when dummy cycle=6 (in both SPI &
QPI mode), maximum clock rate=104MHz.
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APPLICATION NOTE
2-2. Performance Comparison
Tables below are the comparison of new products and the former products.
Table 2-3: Performance Comparison for 64Mb Products
Parameter
tCH
Clock High/Low Time
tCL
Program Time
Erase Time
CS# Deselect Time
Vcc Standby Current (Max.)
MX25U6435E
MX25U6435F
Others(fSCLK)
4.5ns(min.)
4.5ns(min.)
Normal
Read(fRSCLK)
13ns(min.)
9ns(min.)
Others(fSCLK)
4.5ns(min.)
4.5ns(min.)
Normal
Read(fRSCLK)
13ns(min.)
9ns(min.)
8us(typ.)* ; 30us(max.)
1.2ms(typ.) ; 3ms(max.)
60ms(typ.)
0.25s(typ.); 1s(max.)
0.5s(typ.); 2s(max.)
36s(typ.); 80s (max.)
12ns(min.)
12us(typ.)** ; 30us(max.)
1.2ms(typ.) ; 3ms(max.)
60ms(typ.)
0.25s(typ.); 1s(max.)
0.5s(typ.); 2s(max.)
50s(typ.); 100s (max.)
5ns(min.)
30ns(min.)
30ns(min.)
100uA
80uA
MX25U3235E
MX25U3235F
Others(fSCLK)
4.5ns(min.)
4.5ns(min.)
Normal
Read(fRSCLK)
13ns(min.)
9ns(min.)
Others(fSCLK)
4.5ns(min.)
4.5ns(min.)
Normal
Read(fRSCLK)
13ns(min.)
9ns(min.)
8us(typ.)* ; 30us(max.)
1.2ms(typ.) ; 3ms(max.)
60ms(typ.)
0.25s(typ.); 1s(max.)
0.5s(typ.); 2s(max.)
18s(typ.); 40s(max.)
12ns(min.)
12us(typ.)** ; 30us(max.)
1.2ms(typ.) ; 3ms(max.)
60ms(typ.)
0.25s(typ.); 1s(max.)
0.5s(typ.); 2s(max.)
25s(typ.); 50s (max.)
5ns(min.)
30ns(min.)
30ns(min.)
100uA
80uA
Byte
Page
Sector
Block(32KB)
Block(64KB)
Chip
Read
tSHSL
Write/Erase/
Program
Table 2-4: Performance Comparison for 32Mb Products
Parameter
tCH
Clock High/Low Time
tCL
Program Time
Erase Time
CS# Deselect Time
Vcc Standby Current (Max.)
Byte
Page
Sector
Block(32KB)
Block(64KB)
Chip
Read
tSHSL
Write/Erase/
Program
Note:
* The typical time for single byte programming is 8us, and more than single byte (≦256 bytes) programming is 1.2ms.
**For MX25U6435F, MX25U3235F, "n" Byte Program feature is provided. The formula of calculating byte program time is
8us + (n x 4us). "n" = how many bytes to program. In the formula, while N=1, byte program time = 12us.
P/N: AN0124
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APPLICATION NOTE
3. Command Set Comparison
MX25U3235E and MX25U3235F have the same command sets for all operation.
MX25U6435E and MX25U6435F have the same command sets for all operation.
4. Device ID Code Comparison
The following tables show that the Manufacturer and Device IDs have not changed.
Table 4-1: ID Code Comparison for 64Mb Products
Command Type
RDID
MX25U6435E
Manufactory ID
C2
RES
REMS
MX25U6435F
Type
Density
Manufactory ID
25
37
C2
Type
Density
25
37
Electronic ID
Electronic ID
37
37
Manufactory ID
Device ID
Manufactory ID
Device ID
C2
37
C2
37
Table 4-2: ID Code Comparison for 32Mb Products
Command Type
RDID/QPIID
MX25U3235E
Manufactory ID
Type
Density
Manufactory ID
Type
Density
C2
25
36
C2
25
36
Electronic ID
RES
REMS
P/N: AN0124
MX25U3235F
Electronic ID
36
36
Manufactory ID
Device ID
Manufactory ID
Device ID
C2
36
C2
36
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APPLICATION NOTE
5. References
The following datasheets were used for preparing this comparison note:
Datasheet
Location
Date Issued
Version
MX25U6435E
Macronix Website
Apr. 2013
1.4
MX25U6435F
Macronix Website
Feb. 2012
1.0
MX25U3235E
Macronix Website
Apr. 2013
1.8
MX25U3235F
Macronix Website
Feb. 2012
1.0
6. Revision History
Revision No.
P/N: AN0124
Description
REV. 1
Initial Release
REV. 2
1. Removed Product Support section
2. Correct Performance Comparison Table for both 32Mb and
64Mb products
5
Page
Date
ALL
MAY 04, 2011
5
3
ARP. 19, 2013
REV. 2, APR. 19, 2013
APPLICATION NOTE
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Copyright© Macronix International Co., Ltd. 2011~2013. 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,
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For the contact and order information, please visit Macronix’s Web site at: http://www.macronix.com
MACRONIX INTERNATIONAL CO., LTD. reserves the right to change product and specifications without notice.
P/N: AN0124
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REV. 2, APR. 19, 2013