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M58WR032EB 数据表(PDF) 48 Page - STMicroelectronics |
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M58WR032EB 数据表(HTML) 48 Page - STMicroelectronics |
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48 / 81 page  M58WR032ET, M58WR032EB 48/81 Table 23. Write AC Characteristics, Chip Enable Controlled Note: 1. Sampled only, not 100% tested. 2. tWHEL has the values shown when reading in the targeted bank. System designers should take this into account and may insert a software No-Op instruction to delay the first read in the same bank after issuing a command. If it is a Read Array operation in a different bank tWHEL is 0ns. Symbol Alt Parameter M58WR032E Unit 70 80 100 tAVAV tWC Address Valid to Next Address Valid Min 70 80 100 ns tAVEH tWC Address Valid to Chip Enable High Min 45 50 50 ns tAVLH Address Valid to Latch Enable High Min 9 9 10 ns tDVEH tDS Data Valid to Write Enable High Min 45 50 50 ns tEHAX tAH Chip Enable High to Address Transition Min 0 0 0 ns tEHDX tDH Chip Enable High to Input Transition Min 0 0 0 ns tEHEL tWPH Chip Enable High to Chip Enable Low Min 25 25 25 ns tEHGL Chip Enable High to Output Enable Low Min 0 0 0 ns tEHWH tCH Chip Enable High to Write Enable High Min 0 0 0 ns tELKV Chip Enable Low to Clock Valid Min 9 9 9 ns tELEH tWP Chip Enable Low to Chip Enable High Min 45 50 50 ns tELLH Chip Enable Low to Latch Enable High Min 10 10 10 ns tELQV Chip Enable Low to Output Valid Min 70 80 100 ns tGHEL Output Enable High to Chip Enable Low Min 17 17 20 ns tLHAX Latch Enable High to Address Transition Min 9 9 10 ns tLLLH Latch Enable Pulse Width Min 9 9 10 ns tWHEL (2) Write Enable High to Chip Enable Low Min 25 25 25 ns tWHQV Write Enable High to Output Valid Min 95 105 125 ns tWLEL tCS Write Enable Low to Chip Enable Low Min 0 0 0 ns tEHVPL Chip Enable High to VPP Low Min 200 200 200 ns tEHWPL Chip Enable High to Write Protect Low Min 200 200 200 ns tQVVPL Output (Status Register) Valid to VPP Low Min 000 ns tQVWPL Output (Status Register) Valid to Write Protect Low Min 000 ns tVPHEH tVPS VPP High to Chip Enable High Min 200 200 200 ns tWPHEH Write Protect High to Chip Enable High Min 200 200 200 ns |
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