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M58WR064B датащи(PDF) 45 Page - STMicroelectronics |
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M58WR064B датащи(HTML) 45 Page - STMicroelectronics |
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45 / 81 page ![]() 45/81 M58WR064T, M58WR064B Table 21. Synchronous Read AC Characteristics Note: 1. Sampled only, not 100% tested. 2. For other timings please refer to Table 20, Asynchronous Read AC Characteristics. 3. To be characterized. Symbol Alt Parameter M58WR064 Unit 70 85 100 tAVKH tAVCLKH Address Valid to Clock High Min 9 9 9 ns tELKH tELCLKH Chip Enable Low to Clock High Min 9 9 9 ns tELTV Chip Enable Low to Wait Valid Max 14(3) 18 18 ns tEHEL Chip Enable Pulse Width (subsequent synchronous reads) Min 15(3) 20 20 ns tEHTZ Chip Enable High to Wait Hi-Z Max 20(3) 25 25 ns tKHAX tCLKHAX Clock High to Address Transition Min 10 10 10 ns tKHQV tKHTV tCLKHQV Clock High to Output Valid Clock High to WAIT Valid Max 14(3) 18 18 ns tKHQX tKHTX tCLKHQX Clock High to Output Transition Clock High to WAIT Transition Min 3.5 3.5 3.5 ns tLLKH tADVLCLKH Latch Enable Low to Clock High Min 10 10 10 ns tKHKH tCLK Clock Period (f=40MHz) Min 25 25 ns Clock Period (f=52MHz) Min 19 ns tKHKL tCLKHCLKL Clock High to Clock Low Min 5 5 5 ns tKLKH tCLKLCLKH Clock Low to Clock High Max 5 5 5 ns |
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