AS7C1026
AS7C31026
®
Read cycle (over the operating range)
3,9
-12
Parameter
Read cycle time
Address access time
Chip enable (CE) access time
Output enable (OE) access time
Output hold from address change
CE Low to output in low Z
CE High to output in high Z
OE Low to output in low Z
Byte select access time
Byte select Low to low Z
Byte select High to high Z
OE High to output in high Z
Power up time
Power down time
Shaded areas indicate preliminary information.
-15
Max
–
12
12
6
–
–
6
–
6
–
6
6
–
12
Min
15
–
–
–
4
0
–
0
–
0
–
–
0
–
Max
–
15
15
7
–
–
6
–
7
–
6
6
–
15
Min
20
–
–
–
4
0
–
0
–
0
–
–
0
–
-20
Max
–
20
20
8
–
–
8
–
8
–
8
8
–
20
Unit
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
4,5
4,5
4, 5
4, 5
4, 5
5
4, 5
4, 5
4, 5
3
3
Notes
Symbol
t
RC
t
AA
t
ACE
t
OE
t
OH
t
CLZ
t
CHZ
t
OLZ
t
BA
t
BLZ
t
BHZ
t
OHZ
t
PU
t
PD
Min
12
–
–
–
4
0
–
0
–
0
–
–
0
–
Key to switching waveforms
Rising input
Falling input
Undefined output/don’t care
Read waveform 1 (address controlled)
3,6,7,9
t
RC
Address
Data
OUT
t
OH
Previous data valid
t
AA
Data valid
t
OH
Read waveform 2 (OE, CE, UB, LB controlled)
3,6,8,9
t
RC
Address
t
AA
OE
t
OLZ
CE
t
LZ
LB, UB
t
BLZ
Data
IN
t
BA
Data valid
t
BHZ
t
ACE
t
OHZ
t
HZ
t
OE
t
OH
3/23/01; v.1.0
Alliance Semiconductor
P. 4 of 10