am42bds640ag Meet Spansion Inc., am42bds640ag Datasheet - Page 56

• 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. SA is the sector address for Sector Erase.
2. Address bits A21–A12 are don’t cares during unlock cycles in the command sequence.
November 1, 2002
Addresses
AVD#
WE#
CE#f
Data
OE#
CLK
V
CC
V
V
t
IH
IL
AS
t
VCS
2AAh
t
CS
t
AVDP
Erase Command Sequence (last two cycles)
t
Figure 25. Chip/Sector Erase Command Sequence
t
AH
WP
55h
t
WC
t
WPH
chip erase
555h for
SA
P R E L I M I N A R Y
Am42BDS640AG
chip erase
t
t
10h for
DH
DS
30h
t
CH
VA
t
WHWH2
Progress
Read Status Data
In
VA
Complete
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