The paper introduces a kind of intellective CID Displayer controlled by MCU which takes advantage of CID chip HT9032C with such features as low power ,meet Bell 202 and V2.3 standard, ringing detection, carrier detection receive, etc.

• 利用单片机控制智能来电显示器；显示器利用低功耗；具有振铃检测、载波检测功能；满足Bell202和V2.；3标准的CID芯片HT9032C实现接收来电信息；同时可实现液晶显示、E2PROM存储和语音播报电话主叫号码等功能。