Driving output circuit, chip and driving output method

Abstract

The invention provides a driving output circuit, a chip and a driving output method. The driving output circuit comprises a timing module which is used for outputting a timing signal; a bootstrap module which is used for generating a first conduction voltage according to an input signal; a charge pump module which is used for generating a second conduction voltage according to the timing signal; and a driving module which comprises an upper driving tube and a lower driving tube connected with the upper driving tube, wherein the connecting point of the upper driving tube and the lower driving tube is a signal output end. The first conduction voltage and the second conduction voltage are both used for conducting the upper driving tube and / or the lower driving tube, so that the signal output end outputs an output signal. The invention provides a dynamic hybrid driving output circuit which can give consideration to gate-oxide reliability and a power-loss anti-creeping function at the same time.

Description

technical field [0001] The invention relates to an integrated circuit, in particular to a driving output circuit, a chip and a driving output method. Background technique [0002] With the development of electronic equipment systems, chips using different processes and power supply voltages are used in one system at the same time, and they need to follow the communication protocol to complete the exchange of information with each other. In some cases, chips need to be compatible with different communication protocols. For example, the chip supports the I3C protocol to increase the transmission speed of the system, and the chip also needs to be compatible with the I2C protocol so that it can communicate with chips that only support I2C. Therefore, a new requirement is put forward for the I / O design of the chip: the I / O power supply voltage should be lower than the core power supply voltage of the chip, the bus should be able to support a level several times higher than the I...

AI Technical Summary

Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a drive output circuit, chip and drive output method, which is used to solve the problem that the prior art cannot provide a drive output method, which can ensure a smaller chip circuit Area and power consumption, and at the same time, the reliability of I / O gate oxide and the function of power loss and leakage prevention can be taken into account under various circumstances.

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