| 전자부품 데이터시트 검색엔진 |
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MK68564 데이터시트(PDF) 37 Page - STMicroelectronics |
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MK68564 데이터시트(HTML) 37 Page - STMicroelectronics |
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37 / 46 page ![]() AC ELECTRICAL CHARACTERISTICS (VCC = 5.0 VDC ± 5%, GND = 0 VDC, TA = 0 to 70°C) 4. 0 M H z 5. 0 MH z Number Parameter Min. Max. Min. Max. Unit Notes 1 CLK Period 250 1000 200 1000 ns 2 CLK Width High 105 80 ns 3 CLK Width Low 105 80 ns 4 CLK Fall Time 30 30 ns 5 CLK Rise Time 30 30 ns 6 CS Low to CLK High (setup time) 0 0 ns 1 7 A1-A5 Valid to CS Low (setup time) 0 0 ns 8 DATA Valid to CS Low (write cycle) 0 0 ns 9 CS Width High 50 50 ns 1 10 DTACK Low to A1-A5 Invalid (hold time) 0 0 ns 11 DTACK Low to DATA Invalid (write cycle hold time) 00 ns 12 CS High to DTACK High (delay) 55 50 ns 13 CLK High to DTACK Low 320 295 ns 14 R/W Valid to CS Low (setup time) 0 0 ns 15 DTACK Low to R/W Invalid (hold time) 0 0 ns 16 CLK Low to DATA Out 450 450 ns 17 CS High to DATA Out Invalid (hold time) 0 0 ns 11 18 CS High to DTACK High Impedance 105 100 ns 19 DTACK Low to CS High 0 0 ns 20 DATA Valid to DTACK Low 70 70 ns 21 IACK Width High 50 50 ns 1 22 IACK Low to CLK High (setup time) 0 0 ns 1 23 CLK Low to INTR Disabled 410 410 ns 2 24 CLK Low to DATA Out 330 330 ns 2 25 DTACK Low to IACK, IEI, High 0 0 ns 26 IACK High to DTACK High 55 50 ns 27 IACK High to DTACK High Impedence 105 100 ns 28 IACK High to DATA Out Invalid (hold time) 0 0 ns 29 DATA Valid to DTACK Low 195 195 ns 2 30 CLK Low to IEO Low 220 220 ns 3 31 IEI Low to IEO Low 140 140 ns 3 32 IEI High to IEO High 190 190 ns 4 33 IACK High to IEO High 190 190 ns 4 34 IACK High to INTR Low 200 200 ns 5 35 IEI Low to CLK Low (setup time) 10 10 ns 36 IEI Low to INTR Disabled 425 425 ns 6 37 IEI Low to DATA Out Valid 225 225 ns 6 38 DATA Out Valid to DTACK Low 55 55 ns 6 39 IACK High to DATA Out High Impedence 120 90 ns MK68564 37/46 |
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