©

1994

DATA SHEET

MOS INTEGRATED CIRCUIT

The

µPD6121, 6122 are infrared remote control transmission ICs using the NEC transmission format that are ideally

suited for TVs, VCRs, audio equipment, air conditioners, etc. By combining external diodes and resistors, a maximum

of 65,536 custom codes can be specified. These ICs come in small packages, thus facilitating the design of light

and compact remote control transmitters.

The NEC transmission format consists of leader codes, custom codes (16 bits), and data codes (16 bits). It can

be used for various systems through decoding by a microcontroller.

FEATURES

µA Max. (at standby)

•

µPD6121: 32 codes (single input), 3 codes (double input), expandable up to 64 codes through SEL pin

•

µPD6122: 64 codes (single input), 3 codes (double input), expandable up to 128 codes through SEL pin

•

•

µPD6121G-001 is pin-compatible with the µPD1943G (However, capacitance of capacitor connected to

oscillator pin and other parameters vary)

•

µPD6122G-001 is pin-compatible with the µPD6102G (However, capacitance of capacitor connected to

oscillator pin and other parameters vary)

Note Provided for maintenance purpose only

• When using this product (in NEC transmission format), please order custom codes from NEC.

• New custom codes for the

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

The mark

shows revised points.

Document No. U10114EJ6V0DS00 (6th edition)

(Previous No. IC-1813)

Date Published October 1995 P)

Printed in Japan

REMOTE CONTROL TRANSMISSION CMOS IC

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DATA SHEET

©

1994