AC Operating Conditions and Characteristics (Cont’d): (Full operating voltage and temperature
unless otherwise specified)
Read Cycle:
Read Cycle Time
Access Time
Parameter
Symbol Min Max Unit
tRC 450 – ns
tA
– 450 ns
Read Cycle (Cont’d):
Parameter
Address Setup Time
Address Hold Time
Chip Enable (CE1) to Output
Chip Enable (CE2) to Output
Output Disable to Output
Data Output to High Z State
Previous Read Data Valid with Respect to Address Change
Previous Read Data Valid with Respect to Chip Enable
Symbol Min Max Unit
tAS
tAH
tCO1
tCO2
tOD
tDF
tOH1
tOH2
20 – ns
0 – ns
– 400 ns
– 500 ns
– 250 ns
0 130 ns
0 – ns
0 – ns
Write Cycle:
Write Cycle
Write Delay
Chip Enable (CE1) to Write
Chip Enable (CE2) to Write
Data Setup
Data Hold
Write Pulse
Write Recovery
Output Disable Setup
Parameter
Symbol Min Max Unit
tWC 450 – ns
tAW 130 – ns
tCW1 350 – ns
tCW2 350 – ns
tDW 250 – ns
tDH 50 – ns
tWP 250 – ns
tWR 50 – ns
tDS 130 – ns
Truth Table:
CE1
CE2
OD
R/W
Din
Output
H
X
X
X
X
High Z
X
L
X
X
X
High Z
X
X
H
H
X
High Z
L
H
H
L
X
High Z
L
H
L
L
X
Din
L
H
L
H
X
Dout
Mode
Not Selected
Not Selected
Output Disable
Write
Write
Read