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

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