am42bds640ag Meet Spansion Inc., am42bds640ag Datasheet - Page 48

• 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
Asynchronous Read
Notes:
1. Asynchronous Access Time is from the last of either stable addresses or the falling edge of AVD#.
2. Not 100% tested.
Note: RA = Read Address, RD = Read Data.
November 1, 2002
JEDEC
Parameter
DQ15-DQ0
A21-A0
Standard
AVD#
t
CE#f
t
WE#
OE#
t
AAVDS
AAVDH
t
t
t
t
AVDP
t
t
ACC
OEH
OEZ
CAS
OE
CE
Description
Access Time from CE# Low
Asynchronous Access Time (Note 1)
AVD# Low Time
Address Setup Time to Rising Edge of AVD
Address Hold Time from Rising Edge of AVD
Output Enable to Output Valid
Output Enable Hold
Time
Output Enable to High Z (Note 2)
CE# Setup Time to AVD#
Figure 18. Asynchronous Mode Read with Latched Addresses
t
t
CAS
OEH
P R E L I M I N A R Y
Read
Toggle and
Data# Polling
Am42BDS640AG
t
AAVDS
RA
t
CE
t
ACC
t
OE
t
AVDP
t
AAVDH
Max
Max
Max
Max
Min
Min
Min
Min
Min
Min
Valid RD
(54 MHz)
D8, D9
13.5
70
70
10
t
OEZ
12
10
5
7
0
0
(40 MHz)
C8, C9
10.5
85
85
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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