Drive output circuit, chip and drive output method

Abstract

The present invention provides a drive output circuit, a chip and a drive output method. The drive output circuit includes: a timing module for outputting a timing signal; a bootstrap module for generating a first conduction voltage according to the input signal; A pump module, configured to generate a second conduction voltage according to the timing signal; a drive module, including a drive upper tube and a drive lower tube connected to the drive upper tube, and the drive upper tube and the drive lower tube The connection point is a signal output terminal; both the first conduction voltage and the second conduction voltage are used to conduct the driving upper transistor and / or the driving lower transistor, so that the signal output terminal outputs the output signal. The invention provides a dynamic hybrid drive output circuit, which can simultaneously take into account the reliability of gate oxide and the function of preventing power loss and leakage.

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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