A consumable chip, having a substrate provided with signal sensing modules (L2, C2) and a microcontroller (46) thereon; an application specific integrated circuit (40) is electrically connected between the signal sensing modules (L2, C2) and the microcontroller (46), and has a power module (41) electrically connected to the signal sensing modules (L2, C2), a frequency dividing module (42) dividing the frequency of the signal sensed by the signal sensing modules (L2, C2), a demodulation module (44) receiving the signal outputted by the frequency dividing module (42), and a modulation module (43) receiving the signal outputted by the microcontroller (46); the frequency dividing module (42) outputs the signal having divided frequency to one data port (101) of the microcontroller (46); and the microcontroller (46) has an embedded oscillating circuit.
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