摘要：本文驱散在低温下电池性能的任何关注。文章详细介绍了必要的可靠支持极端低温的环境条件下的非易失性存储器（SRAM）的电流特性。Maxim > App Notes > GENERAL ENGINEERING TOPICS MISCELLANEOUS CIRCUITS STORAGE PRODUCTS Keywords: lithium, SRAM, data retention Sep 11, 2008 APPLICATION NOTE 4289 Low-Temperature Data Retention in Nonvolatile SRAM Abstract: This article dispels any concerns about battery performance at low-temperatures. The article details the current characteristics necessary to reliably support nonvolatile memory (SRAM) under extreme low- temperature environmental conditions. Lithium coin cells have been used for decades as a stable power source for memory backup applications. Fundamental end-product lifetime estimations can be accomplished by taking the total charge available (capacity) in the backup power source (lithium coin ce……