4-BIT SINGLE-CHIP MICROCONTROLLER

FOR INFRARED REMOTE CONTROL TRANSMISSION

DESCRIPTION

The

µPD61P34B is a microcontroller for infrared remote control transmitters which is provided with a one-time

PROM as the program memory.

Because users can write programs for the

µPD61P34B, it is ideal for program evaluation and small-scale

production of the application systems using the

µPD6133 or 6134.

When reading this document, also refer to the

µPD6133, 6134 Data Sheet (U10454E).

FEATURES

• Program memory (one-time PROM) : 1002

× 10 bits

• Data memory (RAM)

: 32

× 4 bits

• Built-in carrier generation circuit for infrared remote control

• 9-bit programmable timer

: 1 channel

• Command execution time

: 16

• Stack level

: 1 level (Stack RAM is for data memory RF as well.)

: 8 units

: 4 units

: 1 unit

: 1 unit (When in output mode, this is the remote control transmission

display pin.)

• Power supply voltage

• Operating ambient temperature

°C

• Oscillator frequency

• POC circuit

APPLICATION

Infrared remote control transmitter (for AV and household electric appliances)

MOS INTEGRATED CIRCUIT

Document No. U13595EJ2V0DS00 (2nd edition)

Date Published June 1999 N CP(K)

Printed in Japan

The mark

shows major revised points.

The information in this document is subject to change without notice. Before using this document, please

confirm that this is the latest version.

Not all devices/types available in every country. Please check with local NEC representative for availability

and additional information.

©

1998, 1999

DATA SHEET