UPD178024 datasheet(12/58 Pages) RENESAS

12 / 58 page

µPD178023, 178024

Data Sheet U14126EJ2V0DS00

CONTENTS

PIN FUNCTION LIST ..................................................................................................................... 11

1.1

Port Pins ................................................................................................................................. 11

1.2

Pins Other Than Port Pins ...................................................................................................

1.3

I/O Circuits of Pins and Recommended Connections of Unused Pins .........................

MEMORY SPACE ........................................................................................................................... 16

2.1

Memory Size Select Register (IMS) .................................................................................... 17

2.2

Internal Extension RAM Size Select Register (IXS) .........................................................

FEATURES OF PERIPHERAL HARDWARE FUNCTIONS .....................................................

3.1

Ports ........................................................................................................................................ 19

3.2

Clock Generation Circuit .....................................................................................................

3.3

Timers ..................................................................................................................................... 20

3.4

Buzzer Output Control Circuit ............................................................................................. 22

3.5

A/D Converter ........................................................................................................................

3.6

Serial Interface ......................................................................................................................

3.7

PLL Frequency Synthesizer ................................................................................................

3.8

Frequency Counter ............................................................................................................... 27

INTERRUPT FUNCTION ............................................................................................................... 28

STANDBY FUNCTION ................................................................................................................... 31

RESET FUNCTION ........................................................................................................................

INSTRUCTION SET ....................................................................................................................... 32

ELECTRICAL SPECIFICATIONS .................................................................................................. 35

PACKAGE DRAWING .................................................................................................................... 44

10. RECOMMENDED SOLDERING CONDITIONS ...........................................................................

APPENDIX A. DEVELOPMENT TOOLS ............................................................................................ 47

APPENDIX B. RELATED DOCUMENTS ........................................................................................... 49

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