AL422B是一种视频帧存储器，存储容量为384k×8bits，存储器结构为先进先出（FIFO），其接口非常简单。下面来介绍它的性能特点及应用领域-AL422B is a video frame memory, storage capacity of 384k × 8bits, memory structure FIFO (FIFO), its interface is very simple. Here to introduce its performance characteristics and applications