Bistable switch control circuit composed of T996/998C

Relevant key device information applied in this article: T998C-6V CD4013 9014 78L06 T996 component is a SAW type radio remote control transmitting component containing a digital encoding circuit. Its internal circuit structure is basically the same as CS900, but it uses digital encoding The circuit is PT2262. It is a four-channel remote control transmitter with a transmitting frequency of 418MHz. The T998 component is a radio receiving component used in conjunction with T996. Its internal circuit is basically the same as CS902, except that the component contains a digital decoding circuit PT2272 . As shown in Figure (a), it is a bistable switch control circuit composed of T998C-6V and double D flip-flop CD4013, with each channel independently controlled. The four output terminals D1~D4 of T998C-6V respectively control the flipping of four bistable flip-flops to realize the on and off control of each channel. CD4013 contains two independent D flip-flops. Each D flip-flop can form a bistable flip-flop, and its composition method is shown in Figure (b).