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參數(shù)資料
| 型號： | GS8180S18 |
| 廠商： | GSI TECHNOLOGY |
| 英文描述： | 1Mb x 18Bit Separate I/O Sigma DDR SRAM(1M x 18位獨立I/O接口雙數(shù)據(jù)速率讀和寫模式靜態(tài)ΣRAM) |
| 中文描述： | 1兆x 18位獨立的I / O西格瑪?shù)腄DR SRAM的（100萬× 18位獨立的I / O接口雙數(shù)據(jù)速率讀和寫模式靜態(tài)ΣRAM） |
| 文件頁數(shù)： | 20/32頁 |
| 文件大小： | 853K |
| 代理商： | GS8180S18 |
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Rev: 1.01 11/2000
Specifications cited are subject to change without notice. For latest documentation see http://www.gsitechnology.com.
20/32
2000, Giga Semiconductor, Inc.
A
Advanced Information
GS8180S09/18/36B-333/300/275/250
AC Electrical Characteristics
Parameter
Symbol
-333
-300
-275
-250
Unit
Notes
Min
Max
Min
Max
Min
Max
Min
Max
Clock Cycle Time
tKHKH
3.0
—
3.3
—
3.6
—
4.0
—
ns
—
Clock High to Output Valid
tKHQV
—
1.6
—
1.8
—
1.9
—
2.1
ns
—
Clock High to Output in High-Z
tKHQZ
0.5
1.6
0.5
1.8
0.5
1.9
0.5
2.1
ns
1
Clock High to Output Invalid
tKHQX
0.5
—
0.5
—
0.5
—
0.5
—
ns
—
Clock High to Output in Low-Z
tKHQX1
0.5
—
0.5
—
0.5
—
0.5
—
ns
1
Clock High to Echo Clock Low-Z
tKHCX1
0.5
—
0.5
—
0.5
—
0.5
—
ns
2, 4
Clock High to Echo Clock High
tKHCH
0.6
1.5
0.6
1.7
0.6
1.8
0.6
2.0
ns
4
Clock Low to Echo Clock Low
tKLCL
0.6
1.7
0.6
1.8
0.6
2.0
0.6
2.2
ns
4
Output Invalid to Echo Clock High
tCHQX
—
–0.5
—
–0.6
—
–0.6
—
–0.7
ns
2
Echo Clock High to Output Valid
tCHQV
—
0.5
—
0.6
—
0.6
—
0.7
ns
2
Clock High to Echo Clock High-Z
tKHCZ
0.5
1.5
0.5
1.7
0.5
1.8
0.5
2.0
ns
1, 2
Clock HIGH Time
tKHKL
1.2
—
1.3
—
1.4
—
1.6
—
ns
—
Clock LOW Time
tKLKH
1.2
—
1.3
—
1.4
—
1.6
—
ns
—
Address Valid to Clock High
tAVKH
0.6
—
0.7
—
0.7
—
0.8
—
ns
—
Clock High to Address Don’t Care
tKHAX
0.4
—
0.4
—
0.5
—
0.5
—
ns
—
Enable Valid to Clock High
tEVKH
0.6
—
0.7
—
0.7
—
0.8
—
ns
—
Clock High to Enable Don’t Care
tKHEX
0.4
—
0.4
—
0.5
—
0.5
—
ns
—
Write Valid to Clock High
tWVKH
0.6
—
0.7
—
0.7
—
0.8
—
ns
—
Clock High to Write Don’t Care
tKHWX
0.4
—
0.4
—
0.5
—
0.5
—
ns
—
Data In Valid to Clock High
tDVKH
0.6
—
0.7
—
0.7
—
0.8
—
ns
—
Clock High to Data In Don’t Care
Notes:
1.
Measured at 100 mV from steady state. Not 100% tested.
2.
Guaranteed by design. Not 100% tested.
3.
For any specific temperature and voltage tKHCZ < tKHCX1.
4.
Tested using AC Test Load B
tKHDX
0.4
—
0.4
—
0.5
—
0.5
—
ns
—
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