【选型】SRAM芯片AS6C62256可PTP兼容IS62C256AL用于工业显示器中，多个参数基本一致

时间： 2022-04-15 来源：世强

技术问答

随着数字化时代的进展，工业显示器的需求日益趋增，工业显示器的图像显示需要用到SRAM，因此SRAM的需求也与日俱增，本文介绍2款256K的SRAM型号，将ALLIANCE的AS6C62256与IS62C256AL参数对比，作为一个参考供工程师选型。

256K容量的SRAM中Alliance的AS6C62256与ISSI品牌的IS62C256AL参数对比如下图1所示：

图1 Alliance的AS6C62256与ISSI品牌的IS62C256AL参数对比

从上述参数可知：

Alliance的AS6C62256的参数基本与ISSI品牌的IS62C256AL一致，相对来说Alliance的AS6C62256的工作电压范围更广，有利于供电比较复杂的车载电子环境.AS6C62256这颗主打低功耗，在相同工作情况下，功耗会更低一些，不过会相对牺牲些读写速率。

ALLIANCE的AS6C62256与ISSI品牌的IS62C256AL的PIN脚框图如下图2所示：

图2 PIN脚框图对比

如上图所示，两者PIN脚是pin to pin的，可以替换使用。

综上所述，Alliance的AS6C62256的参数基本与ISSI品牌的IS62C256AL一致，在IS62C256AL缺货的情况下，可以使用ALLIANCE的AS6C62256进行替代备选。

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