µPD75304B,75306B,75308B
CONTENTS
1. PIN CONFIGURATION (TOP VIEW)...............................................................................................
6
8
2. BLOCK DIAGRAM............................................................................................................................
3. PIN FUNCTIONS ..............................................................................................................................
3.1 PORT PINS ..............................................................................................................................................
3.2 NON-PORT PINS .....................................................................................................................................
3.3 PIN INPUT/OUTPUT CIRCUITS ..............................................................................................................
3.4 RECOMMENDED CONNECTION OF UNUSED PINS .............................................................................
9
9
11
13
15
16
3.5
PRECAUTIONS CONCERNING P00/INT4 PIN AND RESET PIN ...........................................................
4. MEMORY CONFIGURATION .......................................................................................................... 16
5. PERIPHERAL HARDWARE FUNCTIONS ........................................................................................ 21
5.1 PORTS .....................................................................................................................................................
5.2 CLOCK GENERATOR ...............................................................................................................................
5.3 CLOCK OUTPUT CIRCUIT .......................................................................................................................
5.4 BASIC INTERVAL TIMER ........................................................................................................................
5.5 WATCH TIMER ........................................................................................................................................
5.6 TIMER/EVENT COUNTER .......................................................................................................................
5.7 SERIAL INTERFACE .................................................................................................................................
5.8 LCD CONTROLLER/DRIVER ....................................................................................................................
5.9 BIT SEQUENTIAL BUFFER ......................................................................................................................
21
22
23
24
25
26
28
30
32
6. INTERRUPT FUNCTION ................................................................................................................. 32
7. STANDBY FUNCTION .................................................................................................................... 34
8. RESET FUNCTION .......................................................................................................................... 35
9. INSTRUCTION SET ......................................................................................................................... 37
10. MASK OPTION SELECTION ............................................................................................................ 45
11. ELECTRICAL SPECIFICATIONS ...................................................................................................... 46
12. PACKAGE INFORMATION .............................................................................................................. 64
13. RECOMMENDED SOLDERING CONDITIONS ................................................................................ 67
APPENDIX A. DIFFERENCES AMONG SERIES PRODUCTS .............................................................. 70
APPENDIX B. DEVELOPMENT TOOLS ............................................................................................... 72
APPENDIX C. RELATED DOCUMENTS .............................................................................................. 73
5
NEC [ NEC ]
