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M27W801-150C6TR Datasheet(PDF) 10 Page - STMicroelectronics |
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M27W801-150C6TR Datasheet(HTML) 10 Page - STMicroelectronics |
10 / 24 page Device operation M27W801 10/24 Figure 5. Programming flowchart 2.7 Program Inhibit Programming of multiple M27W801s in parallel with different data is also easily accomplished. Except for E, all like inputs including GVPP of the parallel M27W801 may be common. A TTL low level pulse applied to a M27W801's E input, with VPP at 12.75V, will program that M27W801. A high level E input inhibits the other M27W801s from being programmed. 2.8 Program Verify A verify (read) should be performed on the programmed bits to determine that they were correctly programmed. The verify is accomplished with G at VIL. Data should be verified with tELQV after the falling edge of E. AI01271C n = 0 Last Addr VERIFY E = 50 µs Pulse ++n = 25 ++ Addr VCC = 6.25V, VPP = 12.75V FAIL CHECK ALL BYTES 1st: VCC = 5V 2nd: VCC = 2.7V YES NO YES NO YES NO SET MARGIN MODE RESET MARGIN MODE |
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