PT8A976

Data Sheet PT8A976/976A/976B 3/2-Function Decoder for Remote Controller ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features Common features Operating power-supply voltage range: 2.0 to 5.5V Manual-powe-on/off with ON/OFF button One output pin used for external power control On-chip oscillator with an external resistor On-chip reversing amplifiers Low operating current Few external components needed Package: 16-pin DIP and 16-pin SOIC Introduction The PT8A976, PT8A976A and PT8A976B are CMOS LST designed for the remote controlled toy. The received signal is amplified by the three-stage amplifier, and then the appropriate amplified signal is sampled, fault-tolerantly checked and decoded to control the actions of the remote-controlled toy.There is an oscillator in all of the PT8A976 , PT8A976A and PT8A976B. By adding an external resistor conveniently, the oscillator will be constructed. The oscillator frequency can be adjusted by the external resistor. Pressing the ON/OFF button can control the output level of the PC pin. PT8A976, the auto-power-off function is achieved by an internal counter. When the PT8A976 is powered on the counter is reset and begin to count. Any received encoding signal also reset the counter. The PC output pin will keep on a ...