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AS7C33256FT18B-75TQC Datasheet(PDF) 10 Page - Alliance Semiconductor Corporation

Part # AS7C33256FT18B-75TQC
Description  3.3V 256K x 18 Flow Through Synchronous SRAM
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Manufacturer  ALSC [Alliance Semiconductor Corporation]
Direct Link  https://www.alliancememory.com
Logo ALSC - Alliance Semiconductor Corporation

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AS7C33256FT18B
®
12/10/04; v.1.4
Alliance Semiconductor
P. 10 of 19
Snooze Mode Electrical Characteristics
Timing characteristics over operating range
Parameter
Sym
–65
-75
-80
–10
Unit
Notes
1
1
See “Notes” on page 16.
Min Max
Min
Max
Min
Max
Min
Max
Cycle time
tCYC
7.5
8.5
10
12
ns
Clock access time
tCD
6.5
7.5
8.0
10
ns
Output enable LOW to data valid
tOE
3.5
3.5
4.0
4.0
ns
Clock HIGH to output Low Z
tLZC
2.5
2.5
2.5
2.5
ns
2,3,4
Data output invalid from clock HIGH
tOH
2.5
2.5
2.5
2.5
ns
2
Output enable LOW to output Low Z
tLZOE
0
0
0
0
ns
2,3,4
Output enable HIGH to output High Z
tHZOE
3.0
3.5
4.0
5.0
ns
2,3,4
Clock HIGH to output High Z
tHZC
3.0
3.5
4.0
5.0
ns
2,3,4
Output enable HIGH to invalid output
tOHOE
0–
0
0
0
ns
Clock HIGH pulse width
tCH
2.5
3.0
4.0
4.0
ns
5
Clock LOW pulse width
tCL
2.5
3.0
4.0
4.0
ns
5
Address setup to clock HIGH
tAS
1.5
2.0
2.0
2.0
ns
6
Data setup to clock HIGH
tDS
1.5
2.0
2.0
2.0
ns
6
Write setup to clock HIGH
tWS
1.5
2.0
2.0
2.0
ns
6,7
Chip select setup to clock HIGH
tCSS
1.5
2.0
2.0
2.0
ns
6,8
Address hold from clock HIGH
tAH
0.5
0.5
0.5
0.5
ns
6
Data hold from clock HIGH
tDH
0.5
0.5
0.5
0.5
ns
6
Write hold from clock HIGH
tWH
0.5
0.5
0.5
0.5
ns
6,7
Chip select hold from clock HIGH
tCSH
0.5
0.5
0.5
0.5
ns
6,8
ADV setup to clock HIGH
tADVS
1.5
2.0
2.0
2.0
ns
6
ADSP setup to clock HIGH
tADSPS
1.5
2.0
2.0
2.0
ns
6
ADSC setup to clock HIGH
tADSCS
1.5
2.0
2.0
2.0
ns
6
ADV hold from clock HIGH
tADVH
0.5
0.5
0.5
0.5
ns
6
ADSP hold from clock HIGH
tADSPH
0.5
0.5
0.5
0.5
ns
6
ADSC hold from clock HIGH
tADSCH
0.5
0.5
0.5
0.5
ns
6
Description
Conditions
Symbol
Min
Max
Units
Current during Snooze Mode
ZZ > VIH
ISB2
30
mA
ZZ active to input ignored
tPDS
2cycle
ZZ inactive to input sampled
tPUS
2cycle
ZZ active to SNOOZE current
tZZI
2cycle
ZZ inactive to exit SNOOZE current
tRZZI
0


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