Patent ID: 9722584
Date: 2017-08-01
CPC Classifications: G11C,H03K

Claim:
1. A non-volatile latch, comprising: a latch circuit, having a first output terminal; a first switch circuit, having a first terminal coupled to the first output terminal of the latch circuit, wherein the first switch circuit is turned off in a normal operation period; a first non-volatile memory device, having a first terminal coupled to a second terminal of the first switch circuit; a second switch circuit, having a first terminal coupled to a second terminal of the first non-volatile memory device, and a second terminal coupled to a programming voltage; and a third switch circuit, having a first terminal coupled to the first terminal of the first non-volatile memory device, wherein in a store period, the third switch circuit dynamically determines whether to couple the first terminal of the first non-volatile memory device to a reference voltage according to latched data of the latch circuit and a state transformation condition of the first non-volatile memory device.