W78E51B_05 Datasheet, PDF (2/25 Pages) Winbond – 8-BIT MICROCONTROLLER

W78E51B
9. TIMING WAVEFORMS ............................................................................................................. 18
9.1 Program Fetch Cycle .................................................................................................... 18
9.2 Data Read Cycle........................................................................................................... 18
9.3 Data Write Cycle........................................................................................................... 19
9.4 Port Access Cycle......................................................................................................... 19
9.5 Program Operation ....................................................................................................... 20
10. TYPICAL APPLICATION CIRCUITS ........................................................................................ 21
10.1 Expanded External Program Memory and Crystal ....................................................... 21
10.2 Expanded External Data Memory and Oscillator ......................................................... 22
11. PACKAGE DIMENSIONS ......................................................................................................... 23
11.1 40-pin DIP ..................................................................................................................... 23
11.2 44-pin PLCC ................................................................................................................. 23
11.3 44-pin PQFP ................................................................................................................. 24
12. REVISION HISTORY ................................................................................................................ 25
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