AS7C33256PFS32A
AS7C33256PFS36A
®
Timing characteristics over operating range
–166
–150
–133
–100
Parameter
Symbol Min Max Min Max Min Max Min Max Unit Notes1
Clock frequency
fMax
tCYC
–
6
166
–
–
150
–
–
133
–
–
100 MHz
Cycle time (pipelined mode)
6.6
10
-
7.5
12
-
10
12
-
–
–
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Cycle time (flow-through mode)
tCYCF
10
-
–
–
–
Clock access time (pipelined mode)- 3.3V VDDQ tCD 3.3V
Clock access time (pipelined mode)- 2.5V VDDQ tCD 2.5V
3.5
4.0
9
3.8
4.3
10
3.8
–
4.0
4.5
10
4.0
–
5.0
5.0
12
5.0
–
-
-
-
-
Clock access time (flow-through mode)
Output enable LOW to data valid
Clock HIGH to output Low Z
Data output invalid from clock HIGH
Output enable LOW to output Low Z
Output enable HIGH to output High Z
Clock HIGH to output High Z
Output enable HIGH to invalid output
Clock HIGH pulse width
tCDF
tOE
tLZC
tOH
–
–
–
–
–
3.5
–
–
–
–
0
0
0
0
2,3,4
2
1.5
0
–
1.5
0
–
1.5
0
–
1.5
0
–
tLZOE
tHZOE
tHZC
tOHOE
tCH
–
–
–
–
2,3,4
2,3,4
2,3,4
–
3.5
3.5
–
–
3.8
3.8
–
–
4.0
4.0
–
–
4.5
5.0
–
–
–
–
–
0
0
0
0
2.4
2.4
1.5
1.5
1.5
1.5
0.5
0.5
0.5
0.5
1.5
–
2.5
2.5
1.5
1.5
1.5
1.5
0.5
0.5
0.5
0.5
1.5
1.5
1.5
0.5
0.5
0.5
–
2.5
2.5
1.5
1.5
1.5
1.5
0.5
0.5
0.5
0.5
1.5
1.5
1.5
0.5
0.5
0.5
–
3.5
3.5
2.0
2.0
2.0
2.0
0.5
0.5
0.5
0.5
2.0
2.0
2.0
0.5
0.5
0.5
–
5
5
Clock LOW pulse width
tCL
–
–
–
–
Address setup to clock HIGH
Data setup to clock HIGH
tAS
–
–
–
–
6
tDS
–
–
–
–
6
Write setup to clock HIGH
tWS
–
–
–
–
6,7
6,8
6
Chip select setup to clock HIGH
Address hold from clock HIGH
Data hold from clock HIGH
Write hold from clock HIGH
Chip select hold from clock HIGH
ADV setup to clock HIGH
tCSS
–
–
–
–
tAH
–
–
–
–
tDH
–
–
–
–
6
tWH
tCSH
tADVS
–
–
–
–
6,7
6,8
6
–
–
–
–
–
–
–
–
ADSP setup to clock HIGH
tADSPS 1.5
tADSCS 1.5
tADVH 0.5
tADSPH 0.5
tADSCH 0.5
–
–
–
–
6
ADSC setup to clock HIGH
–
–
–
–
6
ADV hold from clock HIGH
ADSP hold from clock HIGH
ADSC hold from clock HIGH
1 See “Notes” on page 12
–
–
–
–
6
–
–
–
–
6
–
–
–
–
6
4/15/02; v.1.9
Alliance Semiconductor
P. 8 of 14
ISSI [ INTEGRATED SILICON SOLUTION, INC ]
