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P4C1281 Datasheet(PDF) 4 Page - Pyramid Semiconductor Corporation |
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P4C1281 Datasheet(HTML) 4 Page - Pyramid Semiconductor Corporation |
4 / 11 page P4C1281/P4C1282 - ULTRA HIGH SPEED 64K x 4 CMOS STATIC RAMS Page 4 Document # SRAM136 REV OR notes: 1. Stresses greater than those listed under MAxIMUM RATINGS may cause permanent damage to the device. This is a stress rating only and functional operation of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied. Exposure to MAxIMUM rating conditions for extended periods may affect reliability. 2. Extended temperature operation guaranteed with 400 linear feet per minute of air flow. 3. Transient inputs with V IL and IIL not more negative than –3.0V and –100mA, respectively, are permissible for pulse widths up to 20ns. 4. This parameter is sampled and not 100% tested. 5. WE is HIGH for READ cycle. 6. CE is LOW for READ cycle. 7. ADDRESS must be valid prior to, or coincident with CE transition LOW. 8. Read Cycle Time is measured from the last valid address to the first transitioning address. 9. Transition is measured ± 200 mV from steady state voltage prior to change,withloadingasspecifiedinFigure1. Thisparameterissampled and not 100% tested. AC CHARACTERISTICS—WRITE CYCLE (V CC = 5V ± 10%, All Temperature Ranges) (2) Sym Parameter -12 -15 -20 -25 -35 -45 Unit Min Max Min Max Min Max Min Max Min Max Min Max t WC Write Cycle Time 12 13 15 20 30 40 ns t CW Chip Enable Time to End of Write 8 10 15 20 30 35 ns t AW Address Valid to End of Write 8 10 15 20 25 35 ns t AS Address Setup Time 0 0 0 0 0 0 ns t WP Write Pulse Width 9 10 15 20 25 35 ns t AH Address Hold Time from End of Write 0 0 0 0 0 0 ns t DW Data Valid to End of Write 6 7 10 13 15 20 ns t DH Data Hold Time 0 0 0 0 0 0 ns t WZ Write Enable to Output in High Z 6 7 8 10 10 15 ns t OW Output Active from End of Write 2 2 2 2 2 2 ns t AWE Write Enable to Data-out Valid (P4C1281) 12 13 18 20 30 35 ns t ADV Data-in Valid to Data-out Valid (P4C1281) 12 13 18 20 30 35 ns |
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