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MCM67D709 Datasheet(PDF) 6 Page - Motorola, Inc |
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MCM67D709 Datasheet(HTML) 6 Page - Motorola, Inc |
6 / 12 page MCM67D709 6 MOTOROLA FAST SRAM WRITE THROUGH – READ – WRITE (See Note 1) Processor Frequency 60 MHz 50 MHz MCM67D709–16 MCM67D709–20 Parameter Symbol Min Max Min Max Unit Notes Write Cycle Times tKHKH 16 — 20 — ns 1, 2 Clock Low Pulse Width tKLKH 5 — 5 — ns Clock High Pulse Width tKHKL 7 — 7 — ns Clock High to Output High–Z (W = VIL and SIE = PIE = VIH) tKHQZ — 8 — 8 ns 3, 4 Setup Times: A W PIE SIE SDQ0 – SDQ7, SDQP, PDQ0 – PDQ7, PDQP tAVKL tWLKH tPIEVKH tSIEVKH tDVKH 2 2 2 2 2 — 2 2 2 2 2 — ns Hold Times: A W PIE SIE SDQ0 – SDQ7, SDQP, PDQ0 – PDQ7, PDQP tKLAX tKHWX tKHPIEX tKHSIEX tKHDX 2 2 2 2 2 — 2 2 2 2 2 — ns Write with Streaming (PIE = SOE = VIL or SIE = POE = VIL) Clock High to Output Valid tKHQV — 5 — 7 ns 5 Output Enable High to Q High–Z tPOEHQZ tSOEHQZ 0 6 0 8 ns 6 Output Hold from Output Enable High tPOEHQX tSOEHQX 2 — 5 — ns 6 Output Enable Low to Q Active tPOELQX tSOELQX 0 — 0 — ns 6 Output Enable Low to Output Valid tPOELQV tSOELQV — 5 — 6 ns NOTES: 1. A write is performed with W = VIL for the specified setup and hold times and either PIE = VIL or SIE = VIL. If both PIE = VIL and SIE = VIL or PIE = VIH and SIE = VIH, then this is treated like a NOP and no write is performed. 2. All write cycle timings are referenced from K. 3. K must be at a high level for the outputs to transition. 4. Transition is measured ± 500 mV from steady–state voltage with output load of Figure 1B. This parameter is sampled and not 100% tested. 5. A write with streaming is defined as a write cycle which writes data from one data bus to the array and outputs the same data onto the other data bus. 6. Transition is measured ± 500 mV from steady–state voltage with output load of Figure 1B. This parameter is sampled and not 100% tested. At any given voltage and temperature, tPOEHQZ is less than tPOELQX for a given device, and tSOEHQZ is less than tSOELQX for a given device. |
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