s71ws-p Meet Spansion Inc., s71ws-p Datasheet - Page 6

• Manufacturer Part Number: s71ws-p
• Description: 1.8 Volt-only X16 Simultaneous Read/write, Burst Mode Flash Memory With Cellularram
• Manufacturer: Meet Spansion Inc.

3.3
4
NOR Flash and pSRAM Input/Output Descriptions
DQ15-DQ0
Amax-A0
F-RST#
F-V
F-WP#
R-CRE
R-VCC
F-CE#
F-ACC
R-CE#
R-UB#
F-V
R-LB#
AVD#
WE#
RFU
RDY
DNU
OE#
CLK
V
SS
CCQ
CC
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D a t a
NOR Flash Address inputs
Flash Data input/output, shared between NOR and ORNAND Flash. DQ0-DQ7 shared for x8 ORNAND
NOR Flash Chip-enable input #1. Asynchronous relative to CLK for Burst Mode.
Output Enable input. Asynchronous relative to CLK for Burst mode.
Write Enable input.
NOR Flash device power supply (1.7 V - 1.95V).
Input/Output Buffer power supply.
Ground
Reserved for Future Use
Flash ready output. Indicates the status of the Burst read. VOL = data valid. The Flash RDY pin is shared
with the WAIT pin of the pSRAM.
NOR Flash Clock, shared with CLK of burst-mode pSRAM.. The first rising edge of CLK in conjunction
with AVD# low latches the address input and activates burst mode operation. After the initial word is
output, subsequent rising edges of CLK increment the internal address counter. CLK should remain low
during asynchronous access.
NOR Flash Address Valid input. Shared with AVD# of burst-mode pSRAM. Indicates to device that the
valid address is present on the address inputs.
VIL = for asynchronous mode, indicates valid address; for burst mode, causes starting address to be
latched on rising edge of CLK.
VIH= device ignores address inputs
NOR Flash hardware reset input. VIL= device resets and returns to reading array data
NOR Flash hardware write protect input. VIL = disables program and erase functions in the four
outermost sectors.
NOR Flash accelerated input. At VHH, accelerates programming; automatically places device in unlock
bypass mode. At VIL, disables all program and erase functions. Should be at VIH for all other conditions.
Chip-enable input for pSRAM
Control Register Enable (pSRAM). For CellularRAM only.
pSRAM Power Supply
Upper Byte Control (pSRAM)
Lower Byte Control (pSRAM)
Do Not Use
S71WS-P based MCP Products
S h e e t
( A d v a n c e
I n f o r m a t i o n )
S71WS-P_00_A2 August 21, 2006