Voltage conversion device

Abstract

The invention discloses a voltage conversion apparatus which is applied to a dynamic random access memory running in a work mode and a standby mode. The apparatus comprises a first circuit, a second circuit and a logic circuit, wherein the first circuit is coupled to a first supply power source and is provided with an input end and a first output end, the first output end outputs a first output signal between a first high logic site and a low logic site, the second circuit is coupled to a second supply power source lower than the first supply power source and is provided with a second output end, the second output end outputs a second output signal between a second high logic site and the low logic site, and the logic circuit is coupled between the first circuit and the second circuit, is coupled to the second supply power source, and provides constant voltage with the low logic site to the input end according to a disenabling signal at the low logic site. By using the voltage conversion apparatus, critical paths in the circuits can reach high speeds yet still maintain low power loss.

Description

technical field [0001] The present invention relates to a voltage conversion device, in particular to a voltage conversion device suitable for high-speed low-power applications of dynamic random access memory. Background technique [0002] Due to the continuous shrinking of the current semiconductor manufacturing process and the continuous reduction of the system's requirements for power loss, it is an inevitable result to reduce the supply voltage. However, users' needs are becoming more and more diverse, and the speed requirements in terms of specifications can only be continuously improved to meet users' needs, but this is a very important challenge for circuit designers. The reason is that increasing the speed will inevitably result in higher power loss. The simplest method is to increase the supply voltage. In the case of a compromise between the two, a lower supply voltage is developed for the internal circuit, and the transmission circuit uses a lower supply voltage. ...

AI Technical Summary

Problems solved by technology

However, due to the addition of the level shifter, the delay time (delay time) on the signal path increases and the signal processing speed is slowed down.

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