Mouse key identification circuit, mouse key identification device and mouse

摘要

The disclosure discloses a mouse key identification circuit, a mouse key identification device and a mouse. The mouse key identification circuit comprises: N keys, M collection ports, a Light-Emitting Diode (LED) driver circuit and a grounding terminal, wherein part or all of i keys in N keys are connected to the LED port of the LED driver circuit by one respective end, while the other end of the i keys is connected to i collection ports of the M collection ports respectively, wherein i is less than N and N is a natural number; the grounding terminal is connected to one respective end of N−i keys of the N keys, and the other end of the N−i keys is connected to N−i collection ports of the M collection ports respectively. With the disclosure, the number of signal collection ports can be reduced and the cost of a mouse can be lowered.