am49bds640ah Meet Spansion Inc., am49bds640ah Datasheet - Page 64

• 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.

AC CHARACTERISTICS
Notes:
1. PA = Program Address, PD = Program Data, VA = Valid Address for reading status bits.
2. “In progress” and “complete” refer to status of program operation.
3. A21–A12 are don’t care during command sequence unlock cycles.
4. CLK can be either V
5. The Asynchronous programming operation is independent of the Set Device Read Mode bit in the Configuration Register.
62
Addresses
AVD#
WE#
CE#f
Data
OE#
V
CLK
CC
f
V
V
Figure 32. Asynchronous Program Operation Timings: WE# Latched Addresses
IH
IL
t
t
VCS
AS
t
AH
IL
t
or V
CS
555h
IH
.
t
t
WP
AVSW
t
A D V A N C E
DS
Program Command Sequence (last two cycles)
A0h
t
AVHW
t
AVDP
t
DH
t
WC
t
WPH
Am49BDS640AH
PA
I N F O R M A T I O N
PD
t
CH
VA
t
WHWH1
Progress
Read Status Data
In
December 5, 2003
VA
Complete