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GS832218 Datasheet, PDF (22/41 Pages) List of Unclassifed Manufacturers – 2M x 18, 1M x 36, 512K x 72 36Mb S/DCD Sync Burst SRAMs
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Preliminary
GS832218(B/E)/GS832236(B/E)/GS832272(C)
AC Electrical Characteristics
Parameter
-250
-225
-200
-166
-150
-133
Symbol
Unit
Min Max Min Max Min Max Min Max Min Max Min Max
Clock Cycle Time
tKC
4.0 — 4.4 — 5.0 — 6.0 — 6.7 — 7.5 — ns
Clock to Output Valid (x18/x36) tKQ
Clock to Output Valid (x72)
tKQ
— 2.5 — 2.7 — 3.0 — 3.5 — 3.8 — 4.0 ns
— 3.0 — 3.0 — 3.0 — 3.5 — 3.8 — 4.0 ns
Pipeline
Clock to Output Invalid
Clock to Output in Low-Z
tKQX
tLZ1
1.5 — 1.5 — 1.5 — 1.5 — 1.5 — 1.5 — ns
1.5 — 1.5 — 1.5 — 1.5 — 1.5 — 1.5 — ns
Setup time
Hold time
Clock Cycle Time
tS
1.2 — 1.3 — 1.4 — 1.5 — 1.5 — 1.5 — ns
tH
0.2 — 0.3 — 0.4 — 0.5 — 0.5 — 0.5 — ns
tKC
6.5 — 7.0 — 7.5 — 8.0 — 8.5 — 8.5 — ns
Flow
Through
Clock to Output Valid
Clock to Output Invalid
Clock to Output in Low-Z
Setup time
tKQ
— 6.5 — 7.0 — 7.5 — 8.0 — 8.5 — 8.5 ns
tKQX
3.0 — 3.0 — 3.0 — 3.0 — 3.0 — 3.0 — ns
tLZ1
3.0 — 3.0 — 3.0 — 3.0 — 3.0 — 3.0 — ns
tS
1.5 — 1.5 — 1.5 — 1.5 — 1.5 — 1.5 — ns
Hold time
tH
0.5 — 0.5 — 0.5 — 0.5 — 0.5 — 0.5 — ns
Clock HIGH Time
tKH
1.3 — 1.3 — 1.3 — 1.3 — 1.5 — 1.7 — ns
Clock LOW Time
tKL
1.5 — 1.5 — 1.5 — 1.5 — 1.7 — 2 — ns
Clock to Output in
High-Z (x18/x36)
Clock to Output in
High-Z (x72)
G to Output Valid
(x18/x36)
G to Output Valid
(x72)
tHZ1
1.5 2.5 1.5 2.7 1.5 3.0 1.5 3.0 1.5 3.0 1.5 3.0 ns
tHZ1
1.5 3.0 1.5 3.0 1.5 3.0 1.5 3.0 1.5 3.0 1.5 3.0 ns
tOE
— 2.5 — 2.7 — 3.0 — 3.5 — 3.8 — 4.0 ns
tOE
— 3.0 — 3.0 — 3.0 — 3.5 — 3.8 — 4.0 ns
G to output in Low-Z
tOLZ1
0
—
0
—
0
—
0
—0
— 0 — ns
G to output in High-Z (x18/x36)
G to output in High-Z (x72)
tOHZ1
tOHZ1
— 2.5 — 2.7 — 3.0 — 3.0 — 3.0 — 3.0 ns
— 3.0 — 3.0 — 3.0 — 3.0 — 3.0 — 3.0 ns
ZZ setup time
tZZS2
5
—
5
—
5
—
5
—5
— 5 — ns
ZZ hold time
tZZH2
1
—
1
—
1
—
1
—1
— 1 — ns
ZZ recovery
tZZR
20 — 20 — 20 — 20 — 20 — 20 — ns
Notes:
1. These parameters are sampled and are not 100% tested.
2. ZZ is an asynchronous signal. However, in order to be recognized on any given clock cycle, ZZ must meet the specified setup and hold
times as specified above.
Rev: 1.06 9/2004
22/41
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
© 2001, GSI Technology
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