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MX25L12875FMI-10G

P1-P3P4-P4
APPLICATION NOTE
Macronix MX25Lxx35E/F and MX25Lxx75E/F comparison
Publication Number: AN-175V2 July 25, 2012
1
1. Introduction
Macronix offers MX25Lxx35E/F multi-I/O serial flash in densities from 16Mb to 256Mb. The
default I/O mode is Single and Dual I/O only. To enable Quad I/O, HOLD# and WP# must be
re-tasked from control inputs to data I/O pins by setting QE=1 (Status Register bit-6). However,
some applications may require Quad I/O as the default mode, so Macronix now offers
MX25Lxx75E/F from 32Mb to 128Mb with QE preset to ‘1’ . The MX25Lxx35E/F and
MX25Lxx75E/F are identical in all ways except the default QE bit status. This application note
explains this difference in more detail.
2. Status Register Comparison
Both flash families have identical function--only Status Register bit-6 (QE) has a different
default setting before shipping.
Status Register bit Macronix 25Lxx35E/F
Macronix 25Lxx75E/F
Bit 0
WIP
1 = write operation
0 0
Bit 1
WEL
1 = write enable
0 0
Bit 2
BP0
Level of protected block
0 0
Bit 3
BP1
Level of protected block
0 0
Bit 4
BP2
Level of protected block
0 0
Bit 5
BP3
Level of protected block
0 0
Bit 6
QE
Quad I/O Enable = 1
Quad I/O Disable = 0
0 1
Bit 7
SRWD
1 = status register write
disable
0 0
3. Quad Mode Introduction (QE bit setting)
When QE (Status Register bit-6) is set to ’1’, Quad I/O mode is enabled. WP# and HOLD#
functions are re-tasked as data I/O pins only. In other words, HPM (hardware protection) and
hold functions can’t be used in Quad I/O mode. If the system requires either function, it may set
QE=0 to return to Single and Dual I/O mode only.
Note: The QE bit (SR.6) is non-volatile and can be set or cleared by the customer or programmer at any time by
using the WRSR command (01h).
APPLICATION NOTE
Macronix MX25Lxx35E/F and MX25Lxx75E/F comparison
Publication Number: AN-175V2 July 25, 2012
2
4. QE Bit of MX25Lxx75E/F Usage in Application
The default QE bit value of the MX25Lxx75E/F is ‘1’. If the system needs Quad I/O mode to
be set permanently, there is no need to change the default QE bit value. However, if WP# or
Hold# functions are needed at any time, they can be re-enabled by setting the QE bit to ‘0’.
Please note that if WP# or Hold# functions are not needed and Quad I/O mode is not used,
Single I/O and Dual I/O modes still work with the default setting of QE=1. There is no need for
the system to change the default QE bit setting.
Figure 1 and Figure 2 show 4 x I/O mode and Quad I/O mode waveforms. When either I/O
mode is used, WP# and Hold# pins are used as data I/O pins only. Their original hardware input
control functions are disabled and will not be active until QE bit is cleared to ’0’.
Figure1: 4xI/O mode ( 1-1-4 mode) wavefrom
Figure2: Quad I/O mode ( 1-4-4 mode) waveform
APPLICATION NOTE
Macronix MX25Lxx35E/F and MX25Lxx75E/F comparison
Publication Number: AN-175V2 July 25, 2012
3
5. Summary
Macronix MX25Lxx35E/F and MX25Lxx75E/F have identical functions and performance.
Their usage depends on the application requirement; select MX25Lxx75E/F for those
applications needing Quad I/O mode as the factory default setting.
6. Appendix
The table will show cross device between MX25Lxx35E/F and MX25Lxx75E/F.
Density
MX25Lxx35E/F
(default: QE = 0)
MX25Lxx75E/F
(default: QE = 1)
Package
MX25L3235EMI-10G MX25L3275EMI-10G 300mil 16-SOP
MX25L3235EM2I-10G MX25L3275EM2I-10G
209mil 8-SOP
32Mb
MX25L3235EZNI-10G MX25L3275EZNI-10G
6x5mm 8-WSON
MX25L6435EMI-10G MX25L6475EMI-10G 300mil 16-SOP
MX25L6435EM2I-10G MX25L6475EM2I-10G
209mil 8-SOP
64Mb
MX25L6435EZNI-10G MX25L6475EZNI-10G
6x5mm 8-WSON
MX25L12835FMI-10G MX25L12875FMI-10G
300mil 16-SOP
MX25L12835FM2I-10G MX25L12875FM2I-10G
209mil 8-SOP
MX25L12835FZNI-10G MX25L12875FZNI-10G
6x5mm 8-WSON
128Mb
MX25L12835FZ2I-10G MX25L12875FZ2I-10G
8x6mm 8-WSON
7. Data Sheet Version
The following data sheets are used for comparison in this application note.
Data sheet Location Date Issue Revision
MX25L3235E Website May. 07, 2012 Rev. 1.0
MX25L3275E Website Apr. 24, 2012 Rev. 0.00
MX25L6435E Website Apr. 19, 2012 Rev. 0.05
MX25L6475E Website Apr. 24, 2012 Rev. 0.00
MX25L12835F Website Apr. 17, 2012 Rev. 0.01
MX25L12875F Website Jun. 15, 2012 Rev. 0.00
Note:
1. Macronix data sheet is subject to change without notice.
2. For more functional and parametric specifications, please refer to the datasheet on the Macronix Website at
http://www.macronix.com/ and go to: Products/Flash Memory/Serial Flash.
P1-P3P4-P4

MX25L12875FMI-10G

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IC FLASH 128M SPI 104MHZ 16SOP
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