Princeton Technology Corp.

Tel: 886-2-29162151

Fax: 886-2-29174598

URL: http://www.princeton.com.tw

Infrared Remote Control Transmitter

PT2221/2

PT2221/2 v 3.4

Page 1

Revised Oct. 2000

DESCRIPTION

The PT2221 and PT2222 are remote control transmitters utilizing CMOS

Technology specially designed for use on infrared remote control applications.

They are pin-to-pin compatible with NEC

µPD6121 and µPD6122 respectively.

PT2221 is packaged in 20 pins SO and capable of controlling 32 functions and 3

double keys. PT2222, on the other hand, is housed in 24 pins SO and capable of

controlling 64 function keys and 3 double keys. PT2221/2 may be paired with

PT2225 to construct a powerful remote control system.

FEATURES

❒ CMOS Technology

❒ Low Power Consumption (V

∼ 5.5V)

❒ Pin-to-Pin Compatible with µPD6121/µPD6122

❒ Using SEL pin, PT2221 can support 64+6 function codes

❒ Using SEL pin, PT2222 can support 128 + 6 function codes

❒ Customer Code can be selected (please contact PTC for details)

APPLICATIONS

❒ Audio Equipment

❒ Television (TV)

❒ Cable TV Tuner

❒ Video Cassette Recorder (VCR)

❒ Cassette Deck

❒ Air Conditioner

❒ Video Compact Disk (VCD)

❒ DVD ROM/Player

❒ Moniputer / Multi-Media Personal Computer System