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NX25F011B View Datasheet(PDF) - Unspecified

Part NameDescriptionManufacturer
NX25F011B 1M-BIT, 2M-BIT, AND 4M-BIT SERIAL FLASH MEMORIES WITH 4-PIN SPI INTERFACE ETC1
Unspecified 
NX25F011B Datasheet PDF : 37 Pages
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NX25F011B
NX25F021B
NX25F041B
COMPATIBILITY COMMANDS FOR 25xxxA
SERIES DEVICES
Read from SRAM (81H)
The Read from SRAM command (81H) provides access to
the 264-Byte SRAM independent of any Flash memory
array operations. The command is similar to the Read from
Sector command except for the sector address field
S[15:0] which is replaced with all 0 bits.
Read from
SRAM
Command
SI
81H
16 Clocks
0000H
Byte
Address*
B[15:0]
16 Clocks
0000H
SO
*The byte address only uses bits [8:0]
RB[15:0]
Read/Busy
Status
First Byte - Last Byte
Read SRAM Data
Write to SRAM (82H)
The Write to SRAM command (82H) provides access to
the 264-Byte SRAM independently of any Flash memory
array operation. The command is similar to the Write to
Sector command sequence except that the sector
address field S[15:0] is replaced by all 0 bits. When CS
is asserted high to complete the command, the contents
of the SRAM will be maintained until overwritten through
another command or the power is removed. Using the
Write to SRAM command, data can be loaded in prepara-
tion of writing to a sector in memory and then transferred
to a selected sector using the Transfer SRAM to Sector
command.
Write to
SRAM
Command
16 Clocks
SI
82H
0000H
Byte
Address*
B[15:0]
SO
*The byte address only uses bits [8:0]
Write Sector Data
First Byte - Last Byte
8 Clocks
00H
26
NexFlash Technologies, Inc.
PRELIMINARY NXSF016F-1201
12/12/01 ©
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