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W78L054A Datasheet(PDF) 11 Page - Winbond |
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W78L054A Datasheet(HTML) 11 Page - Winbond |
11 / 26 page W78LE54/W78L054A Publication Release Date: December 4, 2006 - 11 - Revision A6 OPERATIONS P3.0 (A9 CTRL) P3.1 (A13 CTRL) P3.2 (A14 CTRL) P3.3 (OE CTRL) P3.6 ( CE ) P3.7 ( OE ) EA (VPP) P2, P1 (A15..A0) P0 (D7..D0) NOTE Read 0 0 0 0 0 0 1 Address Data Out Output Disable 0 0 0 0 0 1 1 X Hi-Z Program 0 0 0 0 0 1 VCP Address Data In Program Verify 0 0 0 0 1 0 VCP Address Data Out @3 Erase 1 0 0 0 0 1 VEP A0:0, others: X Data In 0FFH @4 Erase Verify 1 0 0 0 1 0 VEP Address Data Out @5 Program/Erase Inhibit X 0 0 0 1 1 VCP/ VEP X X Notes: 1. All these operations happen in RST = VIH, ALE = VIL and PSEN = VIH. 2. VCP = 12.5V, VEP = 14.5V, VIH = VDD, VIL = Vss. 3. The program verify operation follows behind the program operation. 4. This erase operation will erase all the on-chip Flash EPROM cells and the Security bits. 5. The erase verify operation follows behind the erase operation. |
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