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STLC5465B 数据表(PDF) 57 Page - STMicroelectronics |
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STLC5465B 数据表(HTML) 57 Page - STMicroelectronics |
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57 / 101 page ![]() NCS0/1 NDSACK 0/ DTAC K / NREADY NA S/ ALE ND S/ NRD D0/15 R/W / NWR A0/15 / AD0/15 A16/23 NBHE t3 t2 t4 t7 t8 t9 t12 t10 t1 Figure 46 : ST10 (C16x) Read Cycle; Demultiplexed A/D VII - MICROPROCESSOR TIMING (continued) VII.3 - ST10/C16x demult. A/D, MOD0 = 0, MOD1 = 1, MOD0 = 1 Symbol Parameter Min. Typ. Max. Unit t1 Delay Not Ready/NRD (if NCS0/1 = 0), (30pF) Delay when immediate access VDD =5V V DD = 3.3V 0 98 108 ns ns ns t2 Hold Time Chip Select / NRD 10 ns t3 Delay Not Ready / NRD rising edge Delay when immediate access VDD =5V V DD = 3.3V 0 98 108 ns ns ns t4 Width ALE 20 ns t7 Data valid after NOTREADY falling efge (30pF) 0 15 ns t8 Data bus at high impedance after NRD (30pF) 0 15 ns t9 Set-up Time NBHE, Address AD0/15, A16/ALE 5 ns t10 Hold Time NBHE / Address ADO/15, A16/23/NRD 10 ns t12 Delay NRD / NCS 0 ns STLC5465B 57/101 |
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