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M58WR064B Datasheet(PDF) 49 Page - STMicroelectronics |
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M58WR064B Datasheet(HTML) 49 Page - STMicroelectronics |
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49 / 81 page  49/81 M58WR064T, M58WR064B 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 the read operation is in a different bank tWHEL is 0ns. 3. To be characterized. Symbol Alt Parameter M58WR064 Unit 70 85 100 tAVAV tWC Address Valid to Next Address Valid Min 70(3) 85 100 ns tAVEH tWC Address Valid to Chip Enable High Min 45(3) 60 60 ns tAVLH Address Valid to Latch Enable High Min 10 10 10 ns tDVEH tDS Input Valid to Write Enable High Min 45(3) 60 60 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 tELEH tWP Chip Enable Low to Chip Enable High Min 45(3) 60 60 ns tELLH Chip Enable Low to Latch Enable High Min 10 10 10 ns tELQV Latch Enable Low to Output Valid Min 70(3) 85 100 ns tGHEL Output Enable High to Chip Enable Low Min 20 20 20 ns tLHAX Latch Enable High to Address Transition Min 9 9 9 ns tLLLH Latch Enable Pulse Width Min 10 10 10 ns tWHEL (2) Write Enable High to Chip Enable Low Min 40(3) 50 50 ns tWHKV Write Enable High to Clock Valid Min 25 25 25 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 0 0 0 ns tQVWPL Output (Status Register) Valid to VPP Low Min 0 0 0 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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