®
AS7C1025A
AS7C31025A
Read cycle (over the operating range)
3,9
-10
Parameter
Read cycle time
Address access time
Chip enable (CE) access time
Output enable (OE) access time
Output hold from address change
CE
Low t
o output in low Z
CE Low to output in high Z
OE Low to output in low Z
OE High to output in high Z
Power up time
Power down time
Symbol
t
RC
t
AA
t
ACE
t
OE
t
OH
t
CLZ
t
CHZ
t
OLZ
t
OHZ
t
PU
t
PD
10
–
–
–
2
0
–
0
–
0
–
–
10
10
3
–
–
3
–
3
–
10
12
–
–
–
3
0
–
0
–
0
–
-12
–
12
12
3
–
–
3
–
3
–
12
15
–
–
–
3
0
–
0
–
0
–
-15
–
15
15
4
–
–
4
–
4
–
15
20
–
–
–
3
0
–
0
–
0
–
-20
Min
Max
–
20
20
5
–
–
5
–
5
–
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
4, 5
4, 5
4, 5
4, 5
4, 5
4, 5
3
3
Notes
Min Max Min
Max Min Max
Key to switching waveforms
Rising input
Falling input
Undefined/don’t care
Read waveform 1 (address controlled)
3,6,7,9
t
RC
Address
t
AA
D
OUT
Data valid
t
OH
Read waveform 2 (CE and OE controlled)
3,6,8,9
CE
t
OE
OE
D
OUT
Supply
current
t
PU
t
ACE
t
CLZ
50%
Data valid
t
PD
50%
I
CC
I
SB
t
OLZ
t
OHZ
t
CHZ
t
RC1
2/6/01; V.0.9
Alliance Semiconductor
P. 4 of 8
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
