AM49DL640BG25IS SPANSION [SPANSION], AM49DL640BG25IS Datasheet - Page 56
AM49DL640BG25IS
Manufacturer Part Number
AM49DL640BG25IS
Description
Stacked Multi-Chip Package (MCP) Flash Memory and SRAM
Manufacturer
SPANSION [SPANSION]
Datasheet
1.AM49DL640BG25IS.pdf
(62 pages)
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pSRAM AC CHARACTERISTICS
Notes:
1. If the device is using the I/Os to output data, input signals of reverse polarity must not be applied.
2. If OE# is high during the write cycle, the outputs will remain at high impedance.
March 8, 2002
Addresses
A0 to A20
I/O1 to 16
I/O1 to 16
LB#, UB#
CE#1
D
WE#
CE2
OUT
D
IN
High-Z
t
CH
Figure 31. Pseudo SRAM Write Cycle—CE1#s Control
t
(Note 1)
AS
P R E L I M I N A R Y
t
COE
t
BE
Am49DL640BG
t
t
WC
ODW
t
CW
t
BW
t
WP
Valid Data In
t
DS
t
DH
t
WR
High-Z
(Note 1)
55
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