am42bds640ag Meet Spansion Inc., am42bds640ag Datasheet - Page 58

• 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. Status reads in figure are shown as asynchronous.
2. VA = Valid Address. Two read cycles are required to
Notes:
1. Status reads in figure are shown as asynchronous.
2. VA = Valid Address. Two read cycles are required to
November 1, 2002
Addresses
Addresses
determine status. When the Embedded Algorithm
operation is complete, and Data# Polling will output true
data.
determine status. When the Embedded Algorithm
operation is complete, the toggle bits will stop toggling.
AVD#
AVD#
CE#f
CE#f
WE#
WE#
Data
Data
OE#
OE#
Figure 27. Data# Polling Timings (During Embedded Algorithm)
Figure 28. Toggle Bit Timings (During Embedded Algorithm)
t
t
t
t
CH
CH
OEH
OEH
VA
VA
t
t
OE
OE
t
t
ACC
ACC
t
t
CE
CE
P R E L I M I N A R Y
Status Data
Status Data
Am42BDS640AG
3. AVD# must toggle between data reads.
3. AVD# must toggle between data reads.
t
t
CEZ
OEZ
VA
VA
Status Data
Status Data
t
CEZ
t
OEZ
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