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M58LR128HT 数据表(PDF) 66 Page - STMicroelectronics |
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M58LR128HT 数据表(HTML) 66 Page - STMicroelectronics |
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66 / 112 page ![]() DC and AC parameters M58LR128HT, M58LR128HB 66/112 Figure 14. Clock input AC waveform Table 24. Synchronous Read AC characteristics(1) (2) 1. Sampled only, not 100% tested. 2. For other timings please refer to Table 23: Asynchronous Read AC characteristics. Symbol Alt Parameter M58LR128HT/L Unit 85 tAVKH tAVCLKH Address Valid to Clock High Min 7 ns tELKH tELCLKH Chip Enable Low to Clock High Min 7 ns tELTV Chip Enable Low to Wait Valid Max 14 ns tEHEL Chip Enable Pulse Width (subsequent synchronous reads) Min 14 ns tEHTZ Chip Enable High to Wait Hi-Z Max 14 ns tKHAX tCLKHAX Clock High to Address Transition Min 7 ns tKHQV tKHTV tCLKHQV Clock High to Output Valid Clock High to WAIT Valid Max 14 ns tKHQX tKHTX tCLKHQX Clock High to Output Transition Clock High to WAIT Transition Min 3 ns tLLKH tADVLCLKH Latch Enable Low to Clock High Min 7 ns tKHKH tCLK Clock Period (f=54MHz) Min 18.5 ns tKHKL tKLKH Clock High to Clock Low Clock Low to Clock High Min 4.5 ns tf tr Clock Fall or Rise Time Max 3 ns AI06981 tKHKH tf tr tKHKL tKLKH |
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