HM9902 touch two-state dimming light circuit

It is a touch desk lamp switch circuit made of HM9902 integrated circuit. If you touch M repeatedly,
the bulb E will press: on + off, on and off... in cycles to achieve touch- on/off action.
    The IJM9902 integrated circuit
is manufactured using the CM()S process.
The power supply voltage range is 6 8
~ 9V, the operating power supply current is ≤
0 SmA, and the output current of the output terminal
is ≥ 40mA. HM 9902 has two package forms:
standard DIP-8 and 8-pin black paste soft seal. The functions of each pin are: ① Pin CK is the synchronous clock signal input terminal; ② Pin Fl is the 60Hz/iioHz AC frequency input. terminal; ③ pin Vm, is the positive terminal of the power supply; ④ pin TI, is the touch sensing input terminal; ⑤ pin (, I, is the sensitivity control input terminal; ⑥ pin se, is the circuit status control input terminal, which is packaged in DIP 8. The terminal should be connected to Vm and should be encapsulated in 8-pin black paste soft package. This terminal should be left floating; ⑦ pin V is the negative terminal of the power supply; ⑧ pin AT is the pulse signal output terminal to drive the triggering thyristor.