Pericom Semiconductor PT8A9701
The PT8A9701 works as the encoder and the PT8A973/973L works as the decoder • Seven output pins, 5 for forward, backward, left, right and turbo functions, and 2 functional keys • Operation power supply for PT8A9701: 3V to 12V (with series resistor) • Auto power-off if no key pressed (PT8A9701) • Motor current limit to meet toy safety standard HD271 (PT8A973/973L) • Low operating current • On-chip oscillator with an external resistor • On-chip reversing amplifiers • Built-in 3.7V Zener (Vz) (PT8A973) and 3.1V Zener (Vz) (PT8A973L) • Few external components needed • Pin to pin compatible with... They have seven control keys for controlling the corresponding motion (forward, backward, left, right, turbo and 2 functional keys) of the remote controlled car. They also have ‘Forward (Backward)’ and ‘Turbo’ combination application.