GS8644Z18 ETC [List of Unclassifed Manufacturers], GS8644Z18 Datasheet - Page 23

• Manufacturer Part Number: GS8644Z18
• Description: 72Mb Pipelined and Flow Through Synchronous NBT SRAM
• Manufacturer: ETC [List of Unclassifed Manufacturers]

AC Electrical Characteristics
Notes:
1.
2.
Rev: 1.03 11/2004
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
Through
Pipeline
Flow
These parameters are sampled and are not 100% tested.
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.
G to output in High-Z (x72)
G to output in High-Z (x18/
Clock to Output in Low-Z
Clock to Output in Low-Z
Clock to Output Invalid
Clock to Output Invalid
Clock to Output Valid
Clock to Output Valid
Clock to Output Valid
G to output in Low-Z
Clock to Output in
Clock to Output in
Clock Cycle Time
Clock Cycle Time
Clock HIGH Time
G to Output Valid
G to Output Valid
Clock LOW Time
ZZ setup time
Parameter
High-Z (x72)
ZZ hold time
ZZ recovery
Setup time
Setup time
Hold Time
(x18/x36)
Hold time
(x18/x36)
(x18/x36)
High-Z
(x72)
(x72)
x36)
Symbol
tOHZ
tOHZ
tOLZ
tZZS
tZZH
tKQX
tKQX
tZZR
tHZ
tHZ
tLZ
tLZ
tKC
tKQ
tKQ
tKC
tKQ
tKH
tOE
tOE
tKL
tS
tH
tS
tH
1
1
1
1
1
2
2
1
1
Min
4.0
1.5
1.5
1.3
0.2
6.5
3.0
3.0
1.5
0.5
1.3
1.5
1.5
1.5
—
—
—
—
—
—
—
20
0
5
1
-250
Max
2.5
3.0
6.5
2.5
3.0
2.5
3.0
2.5
3.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
23/39
Min
4.4
1.5
1.5
1.3
0.3
6.5
3.0
3.0
1.5
0.5
1.3
1.5
1.5
1.5
—
—
—
—
—
—
—
20
0
5
1
-225
GS8644Z18(B/E)/GS8644Z36(B/E)/GS8644Z72(C)
Max
2.7
3.0
6.5
2.7
3.0
2.7
3.0
2.7
3.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Min
5.0
1.5
1.5
1.4
0.4
6.5
3.0
3.0
1.5
0.5
1.3
1.5
1.5
1.5
—
—
—
—
—
—
—
20
0
5
1
-200
Max
3.0
3.0
6.5
3.0
3.0
3.2
3.2
3.0
3.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Min
6.0
1.5
1.5
1.5
0.5
7.0
3.0
3.0
1.5
0.5
1.3
1.5
1.5
1.5
—
—
—
—
—
—
—
20
0
5
1
-166
Max Min
3.5
3.5
7.0
3.0
3.0
3.5
3.5
3.0
3.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
6.7
1.5
1.5
1.5
0.5
7.5
3.0
3.0
1.5
0.5
1.5
1.7
1.5
1.5
—
—
—
—
—
—
—
20
0
5
1
-150
Product Preview
Max
3.8
3.8
7.5
3.0
3.0
3.8
3.8
3.0
3.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
© 2003, GSI Technology
Min Max
7.5
1.5
1.5
1.5
0.5
8.5
3.0
3.0
1.5
0.5
1.7
1.5
1.5
—
—
—
—
—
—
—
20
2
0
5
1
-133
4.0
4.0
8.5
3.0
3.0
4.0
4.0
3.0
3.0
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
—
Unit
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