am49bds640ah Meet Spansion Inc., am49bds640ah Datasheet - Page 67

• 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. SA is the sector address for Sector Erase.
2. Address bits A21–A12 are don’t cares during unlock cycles in the command sequence.
December 5, 2003
Addresses
AVD#
WE#
Data
OE#
CLK
CE#
V
CC
V
V
t
IH
IL
AS
t
VCS
2AAh
t
CS
t
AVDP
Erase Command Sequence (last two cycles)
t
Figure 35. Chip/Sector Erase Command Sequence
t
AH
WP
55h
A D V A N C E
t
WC
t
WPH
chip erase
555h for
SA
Am49BDS640AH
chip erase
I N F O R M A T I O N
t
t
10h for
DH
DS
30h
t
CH
VA
t
WHWH2
Progress
Read Status Data
In
VA
Complete
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