am49bds640ah Meet Spansion Inc., am49bds640ah Datasheet - Page 82

• 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
80
LB#, UB#
WE#
Data Out
Address
CE1#s
Data In
Figure 50. Timing Waveform of Write Cycle (CE1#s Control, CE2s = High)
A D V A N C E
t
AS
Am49BDS640AH
t
WHZ
I N F O R M A T I O N
t
LBW
t
AW
t
, t
CW
t
WC
UBW
t
WP
t
DW
Data Valid
High-Z
t
WR
t
DH
t
CP
December 5, 2003