PT8A9781DE Datasheet | Pericom Semiconductor

.. Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| Features - PT8A977B works as encoder and PT8A9781 works as decoder - Four control functions - Operating power-supply voltage: 1.8V to 5.0V(977B) 1.0V to 1.5V (9781) - Auto-power-off and oscillation-off if no press on any button (977B) - Press on any button to wake up (977B) - On-chip oscillator with an external resistor (977B) - On-chip oscillator with an external resistor and capacitor (9781) - On-chip amplifiers (9781) - Low operating current - Few external ponents needed General Description The PT8A977B and PT8A9781 provide a plete control functions to the remote-controlled toy. The PT8A9781 has four output pins corresponding with the four actions i.e, forward, backward, right, left. The received signals are amplified by the three-stage amplifier, and then the appropriate amplified signals are sampled, fault-tolerantly checked and decoded to control the actions of the remote-controlled toy. There is an internal oscillator in the PT8A9781. By adding an external resistor and capacitor conveniently, the oscillator will be constructed. The external resistor and capacitor can adjust the oscillator frequency. The relative error between the frequencies of the two onchip oscillators in the PT8A977B and PT8A9781 must . be less than ±25%. Package 14-pin DIP 14-pin SOIC Die Form 16-pin SOIC Die Form Ordering Information Part No. PT8A977BP PT8A977BW PT8A977BDE PT8A9781W PT8A9781DE Data Shee . PT0118(02/04) Ver:3 . Data Sheet 4 U . .. Data Sheet PT8A977B/9781 5-Function Remote Controller for 1V Micro Cars |||||||||||||||||||||||||||||||||||||||||||||||...