am49bds640ah Meet Spansion Inc., am49bds640ah Datasheet - Page 81

• Manufacturer Part Number: am49bds640ah
• Description: Stacked Multichip Package Mcp , Flash Memory And Psram Cmos 1.8 Volt-only Simultaneous Read/write, Burst Mode 64 Megabit 4m ? 16-bit Flash Memory, And 16 Mbit 1m ? 16-bit Psram
• Manufacturer: Meet Spansion Inc.

PSRAM AC CHARACTERISTICS
December 5, 2003
WE#
Data In
CE1#s
CE2s
LB#, UB#
Data Out
Address
High-Z
Figure 49. Timing Waveform of Write Cycle (WE# Control
t
t
SK
SK
t
SK
A D V A N C E
t
AS
t
t
LBW
WHZ
Am49BDS640AH
, t
I N F O R M A T I O N
UBW
t
CW
t
AW
t
WC
t
WP
t
DW
Data Valid
High-Z
t
WR
t
t
DH
OW
t
CP
t
t
CP
CP
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