©

DATA SHEET

MOS INTEGRATED CIRCUIT

µPD61P24

DESCRIPTION

The

µPD61P24 is a 4-bit single-chip microcontroller for infrared remote controllers for TVs, VCRs, stereos, cassette

decks, air conditioners, etc.

As the

µPD61P24 is user-programmable, it is ideal for evaluation of programs running in a µPD6124A or 6600A,

and for small-scale production of such systems.

The functions of the

µPD61P24 are described in detail in the following User’s Manual. Be sure to read this

manual before designing your system.

µPD612X Series User’s Manual: IEP-1083

FEATURES

•

Transmitter for programmable infrared remote control-

ler

•

19 types of instructions

•

Instruction execution time: 17.6

µs (with 455-kHz ce-

ramic resonator)

•

On-chip one-time PROM: 1002

× 10 bits

•

Data memory (RAM) capacity

: 32

× 5 bits

•

9-bit programmable timer: 1 channel

•

I/O pins (KI/O): 8 pins

•

Input pins (KI): 4 pins

•

Serial input pins (S-IN): 1 pin

•

Transmission-in-progress indication pin (S-OUT): 1

pin

•

Transmit carrier frequency (REM)

fOSC/12, fOSC/8

•

Standby operation (HALT/STOP mode)

•

Low power consumption

•

Current consumption in STOP mode (TA = 25

°C)

1

µA MAX.

•

Low-voltage operation: VDD = 2.2 to 5.5 V

4-BIT SINGLE-CHIP MICROCONTROLLER

FOR REMOTE CONTROL TRANSMISSION

The information in this document is subject to change without notice.

The mark

shows major revised points.

Document No. U12629EJ4V0DS00 (4th edition)

Previous No. IC-2876

Date Published July 1997 N

Printed in Japan

Caution To use the NEC transmission format, ask NEC to supply the custom code.

Do no use R0 when using a register as an operand of the branch instruction.

1997