am42bds640ag Meet Spansion Inc., am42bds640ag Datasheet - Page 64

• 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.

SRAM AC CHARACTERISTICS
Read Cycle
Note: CE1#s = OE# = V
November 1, 2002
Parameter
t
t
Symbol
CO1
t
HZ1
LZ1
t
t
t
t
t
t
t
t
t
OLZ
BHZ
OHZ
BLZ
RC
AA
OE
BA
OH
, t
, t
, t
CO2
LZ2
HZ2
Address
Data Out
Description
Read Cycle Time
Address Access Time
Chip Enable to Output
Output Enable Access Time
LB#s, UB#s to Access Time
Chip Enable (CE1#s Low and CE2s High) to Low-Z Output
UB#, LB# Enable to Low-Z Output
Output Enable to Low-Z Output
Chip Disable to High-Z Output
UB#s, LB#s Disable to High-Z Output
Output Disable to High-Z Output
Output Data Hold from Address Change
IL
, CE2s = WE# = V
Previous Data Valid
Figure 34. SRAM Read Cycle—Address Controlled
IH
, UB#s and/or LB#s = V
P R E L I M I N A R Y
t
OH
Am42BDS640AG
t
AA
t
RC
IL
Max
Max
Max
Max
Max
Max
Max
Min
Min
Min
Min
Min
Data Valid
(54 MHz)
D8, D9
70
70
70
35
70
10
10
25
25
25
10
5
(40 MHz)
C8, C9
85
85
85
40
85
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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