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ADSP-2105 Datasheet(PDF) 42 Page - Analog Devices |
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ADSP-2105 Datasheet(HTML) 42 Page - Analog Devices |
42 / 64 page ADSP-21xx –42– REV. B TIMING PARAMETERS (ADSP-2111) HOST INTERFACE PORT Multiplexed Data & Address (HMD1 = 1) Read/Write Strobe & Data Strobe (HMD0 = 1 ) 13.0 MHz 16.67 MHz 20 MHz No Frequency Parameter Min Max Min Max Min Max Dependency Unit Timing Requirement: tHALP ALE Pulse Width 15 15 15 ns tHASU HAD15-0 Address Setup before ALE Low 5 5 5 ns tHAH HAD15-0 Address Hold after ALE Low 2 2 2 ns tHALS Start of Write or Read after ALE Low 1 15 15 15 ns tHSU HRW Setup before Start of Write or Read 1 888 ns tHDSU HAD15-0 Data Setup before End of Write 2 555 ns tHWDH HAD15-0 Data Hold after End of Write 2 333 ns tHH HRW Hold after End of Write or Read 2 333 ns tHRWP Read or Write Pulse Width 3 30 30 30 ns Switching Characteristic: tHSHK HACK Low after Start of Write or Read 1 020 0 20 020 ns tHKH HACK Hold after End of Write or Read 2 020 0 20 020 ns tHDE HAD15-0 Data Enabled after Start of Read1 000 ns tHDD HAD15-0 Data Valid after Start of Read 1 23 23 23 ns tHRDH HAD15-0 Data Hold after End of Read 2 000 ns tHRDD HAD15-0 Data Disabled after End of Read 2 10 10 10 ns NOTES 1Start of Write or Read = HDS Low and HSEL Low. 2End of Write or Read = HDS High or HSEL High. 3Read or Write Pulse Width = HDS Low and HSEL Low. |
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