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STLC5432 数据表(PDF) 43 Page - STMicroelectronics |
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STLC5432 数据表(HTML) 43 Page - STMicroelectronics |
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43 / 46 page ![]() AS DS R/W CS AD0/7 tWAS tWDS tASDS tCSS tRWH tCSH tAAS tAAH tDV tDF tDWS tDWN ADDRESS VALID READ DATA VALID AD0/7 READ CYCLE WRITE DATA VALID AD0/7 WRITE CYCLE D93TL072B tRWS Signal name Corresponding pin AS/ALE (13) AS AD0/7 DS/RD (21) DS R/W/WR (26) R/W CS CS (35) A/D0 to A/D7 ( 4 ........30) Multiplexed ST9-like µP bus timing. (P0 = 5V; P1 = 0V) Symbol Parameter Min. Max. Unit tWAS AS Pulse Width 30 ns tWDS DS Pulse Width 110 ns tASDS AS high to DS low 10 ns tRWS R/W to DS setup 20 ns tRWH R/W hold after DS 10 ns tCSS CS to DS setup 20 ns tCSH CS hold after DS 10 ns tAAS Address to AS setup 20 ns tAAH Address hold after AS 10 ns READ CYCLE Symbol Parameter Min. Max. Unit tDV Data Valid after DS 80 ns tDF Output Flat Delay 25 ns WRITE CYCLE Symbol Parameter Min. Max. Unit tDWS Data to DS setup 35 ns tDWH Data Hold after DS 10 ns STLC5432 43/46 |
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