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P4C188-20PMB Datasheet(PDF) 4 Page - Pyramid Semiconductor Corporation |
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P4C188-20PMB Datasheet(HTML) 4 Page - Pyramid Semiconductor Corporation |
4 / 12 page P4C188/188L Page 4 of 12 Document # SRAM112 REV A AC CHARACTERISTICS—READ CYCLE (V CC = 5V ± 10%, All Temperature Ranges) (2) Notes: 5. CE is LOW and WE is HIGH for READ cycle. 6. WE is HIGH, and address must be valid prior to or coincident with CE transition LOW. 7. Transition is measured ±200mV from steady state voltage prior to change with specified loading in Figure 1. This parameter is sampled and not 100% tested. 8. Read Cycle Time is measured from the last valid address to the first transitioning address. TIMING WAVEFORM OF READ CYCLE NO. 2(6) TIMING WAVEFORM OF READ CYCLE NO. 1(5) Sym. t RC t AA t AC t OH t LZ t HZ t PU t PD Parameter Read Cycle Time Address Access Time Chip Enable Access Time Output Hold from Address Change Chip Enable to Output in Low Z Chip Disable to Output in High Z Chip Enable to Power Up Time Chip Disable to Power Down Time -10 Min 10 2 2 0 Max 10 10 5 10 -12 Min 12 2 2 0 Max 12 12 6 12 -15 Min 15 2 2 0 Max 15 15 6 15 -20 Min 20 2 3 0 Max 20 20 8 20 -25 Min 25 2 3 0 Max 25 25 10 25 -35 Min 35 2 3 0 Max 35 35 20 35 -45 Min 45 2 3 0 Max 45 45 25 45 Unit ns ns ns ns ns ns ns ns |
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