©

1998,1999

DATA SHEET

4-BIT SINGLE-CHIP MICROCONTROLLER

FOR INFRARED REMOTE CONTROL TRANSMISSION

DESCRIPTION

The

µPD66P04B 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

µPD66P04B, it is ideal for program evaluation and small-scale

production of the application systems using the

µPD6604.

When reading this document, also refer to the

µPD6604 Data Sheet (U11281E).

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)

Because the

µPD66P04B uses an RC oscillation system clock, its accuracy and stability are lower than

the models using ceramic oscillation.

In applications where the clock accuracy and stability pose a problem, use the

µPD61P34B (ceramic

oscillation type).

MOS INTEGRATED CIRCUIT

Document No. U13596EJ2V0DS00 (2nd edition)

Date Published June 1999 N CP(K)

Printed in Japan

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.

The mark

shows major revised points.