UPD75004CU datasheet(4/66 Pages) NEC

4 / 66 page

µPD75004, 75006, 75008

CONTENTS

PIN CONFIGURATION (TOP VIEW) ...............................................................................................

BLOCK DIAGRAM ...........................................................................................................................

PIN FUNCTIONS ..............................................................................................................................

3.1

PORT PINS .............................................................................................................................................

3.2

NON PORT PINS ...................................................................................................................................

3.3

PIN INPUT/OUTPUT CIRCUITS ...........................................................................................................

3.4

SELECTION OF MASK OPTION ..........................................................................................................

3.5

RECOMMENDED PROCESSING OF UNUSED PINS ..........................................................................

3.6

NOTES ON USING THE P00/INT4, AND RESET PINS ......................................................................

MEMORY CONFIGURATION ..........................................................................................................

PERIPHERAL HARDWARE FUNCTIONS ........................................................................................

5.1

PORTS ....................................................................................................................................................

5.2

CLOCK GENERATOR CIRCUIT ............................................................................................................

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

BIT SEQUENTIAL BUFFER ...................................................................................................................

INTERRUPT FUNCTIONS ................................................................................................................

STANDBY FUNCTIONS ..................................................................................................................

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

INSTRUCTION SET .........................................................................................................................

10. ELECTRICAL SPECIFICATIONS ......................................................................................................

11. CHARACTERISTIC CURVES ...........................................................................................................

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