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.
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
BLOCK DIAGRAM
PT2221M/PT2222M
Infrared Remote Control Transmitter
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
Tel: 886-66296288‧Fax: 886-29174598‧ http://www.princeton.com.tw‧2F, 233-1, Baociao Road, Sindian, Taipei 23145, Taiwan