am42bds640ag Meet Spansion Inc., am42bds640ag Datasheet - Page 53

• Manufacturer Part Number: am42bds640ag
• Description: 64 Megabit 4 M ? 16-bit Cmos 1.8 Volt-only, Simultaneous Operation, Burst Mode Flash Memory And 16 Mbit 1 M ? 16-bit Static Ram Preliminary
• Manufacturer: Meet Spansion Inc.

AC CHARACTERISTICS
Notes:
1. PA = Program Address, PD = Program Data, VA = Valid
2. “In progress” and “complete” refer to status of program
3. A21–A12 are don’t care during command sequence
52
Address for reading status bits.
operation.
unlock cycles.
Addresses
AVD#
CE#f
WE#
Data
OE#
CLK
V
CC
V
V
IH
IL
t
t
VCS
AS
t
AH
Figure 22. Alternate Asynchronous Program Operation Timings
t
CS
555h
t
t
WP
AVSW
t
Program Command Sequence (last two cycles)
DS
t
CHW
t
A0h
AVHW
t
AVDP
t
DH
t
WC
P R E L I M I N A R Y
t
WPH
Am42BDS640AG
PA
(Note 4)
PD
4. CLK can be either V
5. The Asynchronous programming operation is
6. AVD# must toggle during command sequence if CLK is at
independent of the Set Device Read Mode bit in the Burst
Mode Configuration Register.
V
IH
t
CH
.
VA
IL
t
WHWH1
or V
Progress
IH
Read Status Data
.
In
November 1, 2002
VA
Complete