S25FL256SDPBFI700 查看數據表（PDF） - Spansion Inc.

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S25FL256SDPBFI700

MirrorBit® Flash Non-Volatile Memory CMOS 3.0 Volt Core with Versatile I/O Serial Peripheral Interface with Multi-I/O

Spansion Inc. 

Data Sheet

3.15

Do Not Use (DNU)

A device internal signal may be connected to the package connector. The connection may be used by

Spansion for test or other purposes and is not intended for connection to any host system signal. Any DNU

signal related function will be inactive when the signal is at VIL. The signal has an internal pull-down resistor

and may be left unconnected in the host system or may be tied to VSS. Do not use these connections for PCB

signal routing channels. Do not connect any host system signal to these connections.

3.16 Block Diagrams

Figure 3.2 Bus Master and Memory Devices on the SPI Bus - Single Bit Data Path

HOLD#

WP#

SI

SO

SCK

HOLD#

WP#

SO

SI

SCK

CS2#

CS1#

CS1#

CS2#

SPI

Bus Master

FL-S

Flash

FL-S

Flash

Figure 3.3 Bus Master and Memory Devices on the SPI Bus - Dual Bit Data Path

HOLD#

WP#

IO1

IO0

SCK

HOLD#

WP#

IO1

IO0

SCK

CS2#

CS1#

CS1#

CS2#

SPI

Bus Master

FL-S

Flash

FL-S

Flash

Figure 3.4 Bus Master and Memory Devices on the SPI Bus - Quad Bit Data Path

IO3

IO2

IO1

IO0

SCK

IO3

IO2

IO1

IO0

SCK

CS2#

CS1#

CS1#

CS2#

SPI

Bus Master

FL-S

Flash

FL-S

Flash

20

S25FL128S and S25FL256S

S25FL128S_256S_00_05 July 12, 2012

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