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AS7C256L-20SC Datasheet(PDF) 4 Page - Alliance Semiconductor Corporation |
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AS7C256L-20SC Datasheet(HTML) 4 Page - Alliance Semiconductor Corporation |
4 / 8 page AS7C256 AS7C256L 4 Parameter Symbol -10 -12 -15 -20 -25 -35 Unit Notes Min Max Min Max Min Max Min Max Min Max Min Max Read Cycle Time tRC 10 – 12 – 15 – 20 – 25 – 35 – ns Address Access Time tAA – 10 – 12 – 15 – 20 – 25 – 35 ns 3 Chip Enable (CE) Access Time tACE – 10 – 12 – 15 – 20 – 25 – 35 ns 3 Output Enable (OE) Access Time tOE –3 –3 –4– 5– 6– 8 ns Output Hold from Address Change tOH 2– 3– 3–3 –3 –3 – ns 5 CE LOW to Output in Low Z tCLZ 3– 3– 3–3 –3 –3 – ns 4, 5 CE HIGH to Output in High Z tCHZ –3 –3 –4– 5– 6– 8 ns 4, 5 OE LOW to Output in Low Z tOLZ 0– 0– 0–0 –0 –0 – ns 4, 5 OE HIGH to Output in High Z tOHZ –3 –3 –4– 5– 6– 8 ns 4, 5 Power Up Time tPU 0– 0– 0–0 –0 –0 – ns 4, 5 Power Down Time tPD – 10 – 12 – 15 – 20 – 25 – 35 ns 4, 5 READ CYCLE (VCC = 5V±10%, GND = 0V, Ta = 0°C to +70°C) 3, 9 3, 6, 7, 9 TIMING WAVEFORM OF READ CYCLE 1 (Address Controlled) Address Dout Data Valid tOH tAA tRC 3, 6, 8, 9 TIMING WAVEFORM OF READ CYCLE 2 (CE Controlled) Supply Current CE OE Dout tRC 1 tOE tOLZ tACE tCHZ tCLZ tPU tPD ICC ISB 50% 50% tOHZ Data Valid AS7C256-04 |
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