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WCMA1008U1X PDF预览

WCMA1008U1X

更新时间: 2022-04-23 23:00:11
品牌 Logo 应用领域
韦达 - WEIDA /
页数 文件大小 规格书
12页 235K
描述
128K x 8 Static RAM

WCMA1008U1X 数据手册

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WCMA1008U1X  
Switching Waveforms (continued)  
Write Cycle No. 1(WE Controlled) [8, 12, 14]  
t
WC  
ADDRESS  
t
SCE  
CE  
1
CE  
2
t
t
HA  
AW  
t
t
PWE  
SA  
WE  
OE  
t
t
SD  
HD  
DATA  
VALID  
DATA I/O  
IN  
NOTE  
13  
t
HZOE  
[8, 12, 14]  
Write Cycle No. 2 (CE1 or CE2 Controlled)  
t
WC  
ADDRESS  
t
SCE  
CE  
1
t
SA  
CE  
2
t
t
HA  
AW  
t
PWE  
WE  
OE  
t
t
HD  
SD  
DATA I/O  
DATA VALID  
IN  
Notes:  
12. Data I/O is high impedance if OE = VIH  
.
13. During this period, the I/Os are in output state and input signals should not be applied.  
14. If CE1 goes HIGH and CE2 goes LOW simultaneously with WE HIGH, the output remains in a high-impedance state.  
7

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