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P4C1256L55PILF Datasheet(PDF) 5 Page - Pyramid Semiconductor Corporation |
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P4C1256L55PILF Datasheet(HTML) 5 Page - Pyramid Semiconductor Corporation |
5 / 11 page P4C1256L Page 5 of 11 Document # SRAM121 REV E AC CHARACTERISTICS - WRITE CYCLE (Over Recommended Operating Temperature & Supply Voltage) Symbol Parameter -55 Max -70 Max Unit Min Min t WC t CW t AS t WP t AH t DH t WZ t OW Write Cycle Time 55 70 ns Chip Enable Time to End of Write 50 60 ns Address Valid to End of Write 50 60 ns Address Set-up Time 00 ns Write Pulse Width 40 50 ns Address Hold Time 00 ns Data Valid to End of Write 25 30 ns Data Hold Time 0 0 ns Write Enable to Output in High Z 25 30 ns Output Active from End of Write 55 ns t AW t DW TIMING WAVEFORM OF WRITE CYCLE NO. 1 ( WE WE WE WE WE CONTROLLED)(10,11) Notes: 10. CE and WE must be LOW for WRITE cycle. 11. OE is LOW for this WRITE cycle to show t WZ and tOW. 12. If CE goes HIGH simultaneously with WE HIGH, the output remains in a high impedance state 13. Write Cycle Time is measured from the last valid address to the first transitioning address. |
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