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參數(shù)資料
型號: W971632AF
廠商: WINBOND ELECTRONICS CORP
英文描述: 256K x 32 bit x 2 Banks SGRAM(256K x 32位 x 2組同步圖形RAM)
中文描述: 256K × 32位× 2銀行SGRAM(256K × 32位× 2組同步圖形RAM)的
文件頁數(shù): 8/55頁
文件大小: 2653K
代理商: W971632AF
W971632AF
256K x 32 bit x 2 Banks SGRAM
Revision 1.0 Publication Release Date: March, 1999
- 8 -
NOTES:
1.
Operation exceeds "ABSOLUTE MAXIMUM RATING" may cause permanent damage to the device.
2.
All voltages are referenced to V
SS
3.
These parameters are dependent on cycle rate and listed values are measured at a cycle rate with the minimum values
of t
CK
and t
RC
.
4.
These parameters are dependent on output loading. Specified values are obtained with the outputs open.
5.
Power up sequence is further described in the "Functional Description" section.
6.
AC TESTING CONDITIONS
Output Reference Level
Output Load
Input Signal Levels
Transition Time (Rise and Fall) of Input Signal
Input Reference Level
1.4V/1.4V
See diagram A below
2.4V/0.4V
2ns
1.4V
50 ohms
1.4 volt
AC TEST LOAD (A)
Z = 50 ohms
output
30pF
7. Transition times are measured between V
IH
and V
IL
.
8. t
HZ
defines the time at which the outputs achieve the open circuit condition.
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