AS7C1024A
AS7C31024A
®
Read cycle (over the operating range)
Parameter
Read cycle time
Address access time
Chip enable (CE1) access time
Chip enable (CE2) access time
Output enable (OE) access time
Output hold from address change
CE1 Low to output in low Z
CE2 High to output in low Z
CE1 Low to output in high Z
CE2 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
ACE1
t
ACE2
t
OE
t
OH
t
CLZ1
t
CLZ2
t
CHZ1
t
CHZ2
t
OLZ
t
OHZ
t
PU
t
PD
-10
Min Max
10
–
–
10
–
10
–
10
–
5
2
–
0
–
0
–
–
3
–
3
0
–
–
3
0
–
–
10
-12
Min Max
12
–
–
12
–
12
–
12
–
6
3
–
0
–
0
–
–
3
–
3
0
–
–
3
0
–
–
12
-15
Min Max
15
–
–
15
–
15
–
15
–
7
3
–
0
–
0
–
–
4
–
4
0
–
–
4
0
–
–
15
-20
Min Max
20
–
–
20
–
20
–
20
–
8
3
–
0
–
0
–
–
5
–
5
0
–
–
5
0
–
–
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Notes
3
3, 12
3, 12
5
4, 5, 12
4, 5, 12
4, 5, 12
4, 5, 12
4, 5
4, 5
4, 5, 12
4, 5, 12
Key to switching waveforms
Rising input
Falling input
Undefined / don’t care
Read waveform 1 (address controlled)
t
RC
Address
D
OUT
t
AA
Data valid
t
OH
Read waveform 2 (CE1, CE2, and OE controlled)
CE1
CE2
OE
D
OUT
Current
supply
t
ACE1
,
tACE2
t
CLZ1
, t
CLZ2
t
PU
Data valid
t
PD
50%
50%
I
CC
I
SB
t
OE
t
OLZ
t
OHZ
t
CHZ1
, t
CHZ2
t
RC1
9/26/02; 0.9.9
Alliance Semiconductor
P. 4 of 9
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
