SED1220 Dot Matrix(5 x 8 dot) LCD Controller Driver(Built-in Character Generator ROM and RAM,Built-in Power Supply Circuit for LCD)(点阵式(5 x 8 点)LCD控制器驱动器(内置字符发生器ROM和RAM及电源电路))
TMP47C1220 High Speed And High Performance 4-bit Single Chip Microcontroller,Integrating ROM, RAM, Input/Output Ports And Timer/Counters On A Chip(高速、高性能的4位单片微控制器(芯片集成了12288 x 8位ROM,768 x 4位RAM、I/O接口、定时器/计数器 ))