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ST70135 Folha de dados(PDF) 15 Page - STMicroelectronics |
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ST70135 Folha de dados(HTML) 15 Page - STMicroelectronics |
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15 / 29 page ![]() ST70135A 15/29 Figure 11 : Generic Processor Interface Read Timing Cycle Generic processor interface Cycle Timing All AC characteristics are indicated for a 100pF capacitive load. Symbol Parameters Minimum Typical Maximum Unit tr & tf Rise & Fall time (10% to 90%) 3 ns Talew ALE pulse width 12 ns Tavs Address Valid setup time 10 ns Tavh Address Valid Hold time 10 ns Tale2cs ALE to CSB 0 ns Tale2Z ALE to high Z state of address bus 50 ns Tcs2rdy CSB to RDYB asserted 60 ns Tcsre Access Time 900 ms Tcs2wr CSB to WRB 0 ns Twr2d WRB to data 15 ns Trdy2wr RDYB to WRB 0 ns Tdvs data setup time 10 ns Tdvh data hold time 1/2Tmclk Tmclk ns Twr2cs WRB to CSB -10 ns Tcs2rd CSB to RDB 0 ns Trdy2rd RDY to RDB 0 ns Trd2cs RDB to CSB -10 ns Tmclk Master clock Timing Talew Trd2cs Tavs Tavh Tale2cs Twr2d Twdvd Tdvh Tcsrd Tcsrs Twrw Tmclk Tcsre Trdy2dr ALE CSB AD(15-0) RDB READY WRB Tale2Z |
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