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MK5027DIP 数据表(PDF) 11 Page - STMicroelectronics |
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MK5027DIP 数据表(HTML) 11 Page - STMicroelectronics |
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11 / 19 page ![]() AC TIMING SPECIFICATIONS (Continued) TA =0 °Cto 70 °C, VCC = +5V ±5 percent, unless otherwise specified. No Signal Symbol Parameter Test Conditions Min. Typ. Max. Units 13 RCLK TRCT RCLK period 140 ns 14 RCLK TRCH RCLK high time 63 ns 15 RCLK TRCL RCLK low time 63 ns 16 RCLK TRCR Rise time of RCLK 0 8 ns 17 RCLK TRCF Fall time of RCLK 0 8 ns 18 RD TRDR RD data rise time 0 8 ns 19 RD TRDF RD data fall time 0 8 ns 20 RD TRDH RD hold time after rising edge of RCLK 5ns 21 RD TRDS RD setup time prior to rising edge of RCLK 30 ns 22 A/DAL TDOFF Bus Master driver disable after rising edge of HOLD 050 ns 23 A/DAL TDON Bus Master driver enable after falling edge of HLDA TSCT = 100ns 0 200 ns 24 HLDA THHA Delay to falling edge of HLDA from falling edge of HOLD (Bus Master) 0ns 25 RESET TRW RESET pulse width 30 ns 26 A/DAL TCYCLE Read/write, address/data Cycle Time TSCT = 100ns 600 ns 27 A TXAS Address setup time to falling edge of ALE 100 ns 28 A TXAH Address hold time after the rising edge of DAS 50 ns 29 DAL TAS Address setup time to falling edge of ALE 75 ns 30 DAL TAH Address hold time after the falling edge of ALE 20 ns 31 DAL TRDAS Data setup time to the falling edge of DAS (Bus Master read) 55 ns 32 DAL TRDAH Data hold time after the rising edge of DAS (bus master read) 0ns 33 DAL TDDAS Data setup time to the falling edge of DAS (bus master write) 0ns 34 DAL TWDS Data setup time to the rising edge of DAS (bus master write) 250 ns 35 DAL TWDH Data hold time to the rising edge of DAS (bus slave write) 35 ns 36 DAL TSRDH Data hold time after the rising edge of DAS (bus slave read) TSCT = 100ns 0 35 ns 37 DAL TSWDH Data hold time after the rising edge of DAS (bus slave write) 0ns 38 DAL TSWDS Data setup time to the falling edge of DAS (bus slave write) 0ns 39 ALE TALEW ALE width high 110 ns 40 ALE TDSW Delay from rising edge od DAS to the rising edge of ALE 70 ns 41 DAS TDSW DAS width low 200 ns MK5027 11/19 |
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