(PT8A9701P / PT8A974P) 8-Function Remote Controller
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Description
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Data Sheet PT8A9701P/974P/974LP 8-Function Remote Controller
Features
The PT8A9701P works as the encoder and the PT8A974P/974LP works as the decoder Nine output pins, 5 for forward, backward, left, right and turbo functions, and 3 functional keys Operation power supply for PT8A9701: 3V to 12V (with series resistor) Auto power-off if no key pressed (PT8A9701P) Motor current limit to meet toy safety standard HD271 (PT8A974P/974LP) Low operating current On-chip oscillator with an external resistor On-chip reversing amplifiers Built-in 3.7V Zener (Vz) (PT8A974P) and 3.1V Zener (Vz) (PT8A974LP) Few external components needed
General Description
The PT8A9701P and PT8A974P/974LP is a pair of CMOS LSIs designed for remote controlled toy car application. They have eight control keys for controlling the corresponding motion, i.e., forward, backward, left, right, turbo and 3 functional keys, of the remote controlled car. They also have ‘Forward (Backward)’ and ‘Turbo’ combination application.
Ordering Information
Device Na m e Part No. Package E n cod er PT8A9701P 16-pin PDIP Decod er PT8A974P PT8A974LP
20-pin PDIP
Block Diagram
Figure 1. Block Diagram of PT8A9701P
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