Input/output circuit and input control circuit

Abstract

The invention relates to an input control circuit in an integrated circuit, an input circuit and an input / output circuit, wherein the input / output circuit comprises a pin, an input end, a power input end and input control circuit, which includes a first PMOS pipe, a second PMOS pipe, an NMOS pipe, an input enable end and an input enable inverter. The source of the first PMOS pipe is connected with the input end of the power; the grid of the first PMOS pipe and the grid of the NMOS pipe are respectively connected with the input enable end; the drain of the first PMOS pipe, the source of the second PMOS pipe and the drain of the NMOS pipe are respectively connected with the input enable inverter; the drain of the second PMOS pipe and the source of the NMOS pipe are respectively connected with the pin P.

Description

technical field [0001] The invention relates to an integrated circuit, in particular to an input / output circuit and an input control circuit. Background technique [0002] In recent years, portable consumer electronic products have achieved considerable development, and are gradually replacing traditional electronic products as the first choice for people's consumption. Due to the particularity of portable consumer electronics products, an important performance indicator of such electronic products is the continuous working time after charging, that is, the battery life. For many users, the battery life is the decisive factor to measure whether a product is worth buying. one of the factors. [0003] The input / output circuit of the integrated circuit chip (hereinafter referred to as the I / O circuit) is the interface for data exchange between the integrated circuit chip and the external circuit. It is a circuit that can be used for both input and output. I / O circuits are wid...

Images