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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
Transfer All of SRAM to Sector (F3H)
The Transfer SRAM to Sector command (F3H) will
write the existing contents of the SRAM to the speci-
fied sector in memory. The command sequence is
identical to that of the Write to Sector command
except that immediately after the sector address field
S[15:0] and 16 control clocks, the CS pin is asserted
high. This automatically transfers the 264-bytes of
SRAM data to the specified sector in the memory array.
During this time, the array will be busy. Since the entire
264-bytes are transferred, the byte-address field B[15:0]
is not used.
Transfer SRAM
to Sector
Sector
Command Address*
SI
F3H
S[15:0]
16 Clocks
0000H
Program Time
(tWP)
SO
*The sector address only uses bits [8:0], [9:0] or [10:0]
Depending on device density
Transfer All of Sector to SRAM (53H)
The Transfer Sector to SRAM command (53H) allows the
contents of a sector to be transferred directly to the SRAM
without having to clock or read the sector out of the device
and rewrite it into the SRAM. During the transfer, the SO
output is in a high-impedance state and the TR bit in the
status register will be set to a "1" state. When the last byte
address is transferred the TR bit in the status register will be
cleared. Note that the Transfer Sector to SRAM Clocked
command (54H) can also be used if partial transfers are
required.
Transfer Sector
to SRAM
Sector
Command Address*
SI
53H
S[15:0]
32
Clocks
0000 0000H
Transfer Time
(tXS)
SO
*The sector address only uses bits [8:0], [9:0] or [10:0]
Depending on device density
20
NexFlash Technologies, Inc.
PRELIMINARY NXSF016F-1201
12/12/01 ©
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