DESCRIPTION

The PT2221M and PT2222M 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. PT2221M is packaged in 20 pins SO and capable of controlling 32 functions and 3 double keys. PT2222M, on the other hand, is housed in 24 pins SOP and capable of controlling 64 function keys and 3 double keys. PT2221M/PT2222M may be paired with PT2225 to construct a powerful remote control system.

FEATURES

? CMOS technology

? Low power consumption (VDD=2.0 to 3.3V)

? Pin-to-Pin compatible with μPD6121/μPD6122

? Using SEL pin, PT2221M can support 64+6 function codes

? Using SEL pin, PT2222M can support 128+6 function codes

? Customer code can be selected (please contact PTC for details)

? Available in COB package

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