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EM640FP8CS-45LL датащи(PDF) 8 Page - Emerging Memory & Logic Solutions Inc |
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EM640FP8CS-45LL датащи(HTML) 8 Page - Emerging Memory & Logic Solutions Inc |
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8 / 11 page ![]() EM611FV16 Series Low Power, 64Kx16 SRAM 8 merging Memory & Logic Solutions Inc. merging Memory & Logic Solutions Inc. tWC Address CS UB ,LB WE Data in Data out t CW(2) tWR(4) tAW tBW tWP(1) tDW tDH TIMING WAVEFORM OF WRITE CYCLE(3) (UB, LB CONTROLLED) High-Z High-Z Data Valid tAS(3) NOTES (WRITE CYCLE) 1. A write occurs during the overlap(tWP) of low CS and low WE. A write begins when CS goes low and WE goes low with asserting UB or LB for single byte operation or simultaneously asserting UB and LB for double byte operation. A write ends at the earliest transition when CS goes high and WE goes high. The tWP is measured from the beginning of write to the end of write. 2. tCW is measured from the CS going low to end of write. 3. tAS is measured from the address valid to the beginning of write. 4. tWR is measured from the end or write to the address change. tWR applied in case a write ends as CS or WE going high. |
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