W78E54B/W78E054B

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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