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| 型号： | GS8151Z18 |
| 厂商： | GSI TECHNOLOGY |
| 英文描述： | 16Mb Pipelined and Flow Through Synchronous NBT SRAM(16M位流水线式和流通型同步NBT静态RAM) |
| 中文描述： | 16Mb的流水线和流量，通过同步唑的SRAM（1,600位流水线式和流通型同步唑静态内存） |
| 文件页数： | 8/27页 |
| 文件大小： | 683K |
| 代理商： | GS8151Z18 |
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Rev: 1.01 1/2001
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
8/27
2000, Giga Semiconductor, Inc.
Preliminary
GS8151Z18/36T-225/200/180/166/150/133
Synchronous Truth Table
Operation
Type Address
E
1
E
2
E
3
ZZ ADV W Bx G CKE CK
DQ
Notes
Deselect Cycle, Power Down
D
None
H
X
X
L
L
X
X
X
L
L-H
High-Z
Deselect Cycle, Power Down
D
None
X
X
H
L
L
X
X
X
L
L-H
High-Z
Deselect Cycle, Power Down
D
None
X
L
X
L
L
X
X
X
L
L-H
High-Z
Deselect Cycle, Continue
D
None
X
X
X
L
H
X
X
X
L
L-H
High-Z
1
Read Cycle, Begin Burst
R
External
L
H
L
L
L
H
X
L
L
L-H
Q
Read Cycle, Continue Burst
B
Next
X
X
X
L
H
X
X
L
L
L-H
Q
1,10
NOP/Read, Begin Burst
R
External
L
H
L
L
L
H
X
H
L
L-H
High-Z
2
Dummy Read, Continue Burst
B
Next
X
X
X
L
H
X
X
H
L
L-H
High-Z
1,2,10
Write Cycle, Begin Burst
W
External
L
H
L
L
L
L
L
X
L
L-H
D
3
Write Cycle, Continue Burst
B
Next
X
X
X
L
H
X
L
X
L
L-H
D
1,3,10
NOP/Write Abort, Begin Burst
W
None
L
H
L
L
L
L
H
X
L
L-H
High-Z
2,3
Write Abort, Continue Burst
B
Next
X
X
X
L
H
X
H
X
L
L-H
High-Z
1,2,3,10
Clock Edge Ignore, Stall
Current
X
X
X
L
X
X
X
X
H
L-H
-
4
Sleep Mode
None
X
X
X
H
X
X
X
X
X
X
High-Z
Notes:
1.
Continue Burst cycles, whether read or write, use the same control inputs. A Deselect continue cycle can only be entered into if a Deselect
cycle is executed first.
Dummy Read and Write abort can be considered NOP’s because the SRAM performs no operation. A Write abort occurs when the W pin
is sampled low but no Byte Write pins are active so no Write operation is performed.
G can be wired low to minimize the number of control signals provided to the SRAM. Output drivers will automatically turn off during Write
cycles.
If CKE High occurs during a pipelined Read cycle, the DQ bus will remain active (Low Z). If CKE High occurs during a Write cycle, the bus
will remain in High Z.
X = Don’t Care; H = Logic High; L = Logic Low; Bx = High = All Byte Write signals are high; Bx = Low = One or more Byte/Write signals
are low
All inputs, except G and ZZ must meet setup and hold times of rising clock edge.
Wait states can be inserted by setting CKE high.
This device contains circuitry that ensures all outputs are in High Z during power-up.
A 2-bit burst counter is incorporated.
10. The address counter is incriminated for all Burst continue cycles.
2.
3.
4.
5.
6.
7.
8.
9.
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