CM2221/CM2222 pdf datasheet(In

The CM2221and CM2222 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 andμPD6122 respectively.
CM2221 is packaged in 20 pins SO and capable of controlling 32 functions and 3 double
keys. CM2222, on the other hand, is housed in 24 pins SO and capable of controlling 64
function keys and 3 double keys. CM2221/2 may be paired with 8112 to construct a
powerful remote control system.
FEATURES
l CMOS Technology
l Low Power Consumption (VDD=2.0 ~ 5.5 V )
l Pin-to-Pin Compatible withμPD6121/μPD6122
l Using SEL pin, CM2221 can support 64+6 function codes
l Using SEL pin, CM2222 can support 128+6 function codes
l Customer Code can be selected (please contact Ceramate for details)