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AS7C31025 Datasheet(PDF) 4 Page - Alliance Semiconductor Corporation |
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AS7C31025 Datasheet(HTML) 4 Page - Alliance Semiconductor Corporation |
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4 / 9 page  ® AS7C1025 AS7C31025 3/23/01; v.1.0 Alliance Semiconductor P. 4 of 9 Read cycle (over the operating range)3,9 Key to switching waveforms Read waveform 1 (address controlled)3,6,7,9 Read waveform 2 (CE and OE controlled)3,6,8,9 Parameter Symbol -12 -15 -20 Unit Notes Min Max Min Max Min Max Read cycle time tRC 12 – 15 – 20 – ns Address access time tAA –12–15 –20 ns 3 Chip enable (CE) access time tACE –12–15 –20 ns 3 Output enable (OE) access time tOE –6 –7 – 8 ns Output hold from address change tOH 3– 3– 3– ns 5 CE Low to output in low Z tCLZ 0– 0– 0– ns 4, 5 CE Low to output in high Z tCHZ –3 –4 – 5 ns 4, 5 OE Low to output in low Z tOLZ 0– 0– 0– ns 4, 5 OE High to output in high Z tOHZ –3 –4 – 5 ns 4, 5 Power up time tPU 0– 0– 0– ns 4, 5 Power down time tPD –12–15 –20 ns 4, 5 Undefined/don’t care Falling input Rising input Address DOUT Data valid tOH tAA tRC current Supply OE DOUT tOE tOLZ tACE tCHZ tCLZ tPU tPD ICC ISB 50% 50% Data valid tRC1 CE tOHZ |
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