AS7C1024
AS7C31024
®
Read cycle (over the operating range)
-10
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
Min
10
–
–
–
–
2
3
3
–
–
0
–
0
–
Max
–
10
10
10
3
–
–
–
3
3
–
3
–
10
12
–
–
–
–
3
3
3
–
–
0
–
0
–
-12
Min
Max
–
12
12
12
3
–
–
–
3
3
–
3
–
12
15
–
–
–
–
3
3
3
–
–
0
–
0
–
-15
Min
Max
–
15
15
15
4
–
–
–
4
4
–
4
–
15
20
–
–
–
–
3
3
3
–
–
0
–
0
–
-20
Min
Max
–
20
20
20
5
–
–
–
5
5
–
5
–
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
5
4, 5, 12
4, 5, 12
4, 5, 12
4, 5, 12
4, 5
4, 5
4, 5, 12
4, 5, 12
3
3, 12
3, 12
Notes
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
4
ALLIANCE SEMICONDUCTOR
11/29/00
ALSC [ ALLIANCE SEMICONDUCTOR CORPORATION ]
