This part is a kind of semiconductor called PT2264.
Function of this product has Remote Control Encoder IC.
Manufacturers : Princeton Technology
Image and pinout :

Some of the text within the PDF file :
Tel: 886-2-66296288 Fax: 886-2-29174598 URL: http://www.princeton.com.tw Remote Control Encoder IC PT2264 DESCRIPTION PT2264 is a remote control encoder paired with PT2294 utilizing CMOS Technology. It encodes data and address pins into a serial coded waveform suitable for RF modulation. PT2264 has a maximum of 12 bits of tri-state address pins providing up to 531,441 (or 312) address codes; thereby, drastically reducing any code collision and unauthorized code scanning possibilities. FEATURES • • • • • • • • • CMOS Technology Low Power Consumption Very High Noise Immunity Up to 12 Tri-State Code Address Pins Up to 4 Data Pins Wide Range of Operating Voltage: VCC = 8 ~ 15 V Single Resistor Oscillator Latch or Momentary Output Type Available in DIP and SO Package APPL [ ... ]
PT2264 PDF Datasheet Download
