W77C32 Datasheet, PDF (2/78 Pages) Winbond – 8 BIT MICROCONTROLLER

W77C32/W77C032A
12.1.3
12.1.4
12.1.5
Mode 1 ....................................................................................................................52
Mode 2 ....................................................................................................................52
Mode 3 ....................................................................................................................53
12.2
Timer/Counter 2 ............................................................................................................ 54
12.2.1
Capture Mode .........................................................................................................54
12.2.2
Auto-reload Mode, Counting Up..............................................................................54
12.2.3
Auto-reload Mode, Counting Up/Down ...................................................................55
12.2.4
Baud Rate Generator Mode ....................................................................................56
12.2.5
Programmable Clock-out ........................................................................................56
13. WATCHDOG TIMER ................................................................................................................. 57
14. SERIAL PORT ........................................................................................................................... 59
15. TIMED ACCESS PROTECTION ............................................................................................... 65
16. ELECTRICAL CHARACTERISTICS.......................................................................................... 67
16.1 Absolute Maximum Ratings........................................................................................... 67
16.2 D.C. Characteristics ...................................................................................................... 67
16.3
A.C. Characteristics....................................................................................................... 68
16.3.1
External Clock Characteristics ................................................................................68
16.3.2
A.C. Specification....................................................................................................69
16.3.3
MOVX Characteristics Using Stretch Memory Cycles.............................................70
16.3.4
Explanation of Logic Symbols.................................................................................71
17. TIMING WAVEFORMS ............................................................................................................. 72
17.1 Program Memory Read Cycle ....................................................................................... 72
17.2 Data Memory Read Cycle ............................................................................................. 72
17.3 Data Memory Write Cycle ............................................................................................. 73
18. TYPICAL APPLICATION CIRCUITS ......................................................................................... 74
18.1 Expanded External Program Memory and Crystal ........................................................ 74
18.2 Expanded External Data Memory and Oscillator........................................................... 75
19. PACKAGE DIMENSIONS.......................................................................................................... 76
19.1 40-pin DIP...................................................................................................................... 76
19.2 44-pin PLCC .................................................................................................................. 77
19.3 44-pin QFP .................................................................................................................... 77
20. REVISION HISTORY................................................................................................................. 78
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