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IDT72V90823PQF Datasheet(PDF) 25 Page - Integrated Device Technology |
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IDT72V90823PQF Datasheet(HTML) 25 Page - Integrated Device Technology |
25 / 27 page 25 COMMERCIALTEMPERATURERANGE IDT72V90823 3.3V TIME SLOT INTERCHANGE DIGITAL SWITCH 2,048 x 2,048 DS CS VALID WRITE ADDRESS A0-A7 tCSS tCSH R/ W tRWS tRWH tADS tADH VALID WRITE DATA AD0-AD7/ D8-D15 tDSW tDHW DTA tAKD tAKH tCSS tCSH tRWS tRWH VALID READ ADDRESS tADS tADH VALID READ DATA tDDR tDHR tAKD tAKH 5712 drw17 tSWD Figure 14. Motorola Non-Multiplexed Asyncronous Bus Timing AC ELECTRICAL CHARACTERISTICS-MOTOROLA NON-MULTIPLEXED BUS MODE Symbol Parameter Min. Typ. Max. Units Test Conditions tCSS CS Setup from DS falling 0 ns tRWS R/W Setup from DS falling 10 ns tADS Address Setup from DS falling 2 ns tCSH CS Hold after DS rising 0 ns tRWH R/W Hold after DS Rising 2 ns tADH Address Hold after DS Rising 2 ns tDDR Data Setup from DTA LOW on Read 2 ns CL = 150pF tDHR Data Hold on Read 10 20 ns CL = 150pF, RL = 1K tDSW Data Setup on Write (Fast Write) 5 ns tSWD Valid Data Delay on Write (Slow Write) 122 ns tDHW Data Hold on Write 5 ns tAKD Acknowledgment Delay: Reading/WritingRegisters 43/43 ns CL = 150pF Reading/Writing Memory @ 2.048 Mb/s 760/750 ns CL = 150pF @ 4.096 Mb/s 400/390 ns CL = 150pF @ 8.192 Mb/s 220/210 ns CL = 150pF tAKH(1) Acknowledgment Hold Time 22 ns CL = 150pF, RL = 1K NOTE: 1. High Impedance is measured by pulling to the appropriate rail with R L, with timing corrected to cancel time taken to discharge CL. |
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