S25FL128SDPMFIG11 Datasheet, PDF (20/153 Pages) SPANSION – MirrorBit Flash Non-Volatile Memory CMOS 3.0 Volt Core with Versatile I/O Serial Peripheral Interface with Multi-I/O

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 V_IL. The signal has an internal pull-down resistor
and may be left unconnected in the host system or may be tied to V_SS. 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