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W78E054B40PL Datasheet(PDF) 2 Page - Winbond |
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W78E054B40PL Datasheet(HTML) 2 Page - Winbond |
2 / 25 page W78E54B/W78E054B - 2 - 9.3.1 Clock Input Waveform ....................................................................................................16 9.3.2 Program Fetch Cycle......................................................................................................16 9.3.3 Data Read Cycle ............................................................................................................17 9.3.4 Data Write Cycle.............................................................................................................17 9.3.5 Port Access Cycle ..........................................................................................................17 9.3.6 Program Operation .........................................................................................................17 10. TIMING WAVEFORMS ............................................................................................................. 18 10.1 Program Fetch Cycle .................................................................................................... 18 10.2 Data Read Cycle........................................................................................................... 19 10.3 Data Write Cycle........................................................................................................... 19 10.4 Port Access Cycle......................................................................................................... 20 10.5 Program Operation ....................................................................................................... 20 11. TYPICAL APPLICATION CIRCUITS ........................................................................................ 21 11.1 Expanded External Program Memory and Crystal ....................................................... 21 11.2 Expanded External Data Memory and Oscillator ......................................................... 22 12. PACKAGE DIMENSIONS......................................................................................................... 23 12.1 40-pin DIP ..................................................................................................................... 23 12.2 44-pin PLCC ................................................................................................................. 23 12.3 44-pin PQFP ................................................................................................................. 24 13. REVISION HISTORY ................................................................................................................25 |
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