采用单片机控制技术, 将MCS251 单片机、ISD2560 集成语音芯片、HT1621 液晶显示驱动 芯片及集成电路组成的双音多频拨号电路等有机地 结合在一起, 研制成一种功能先进、实用、成本低廉的智能防盗报警器-Single-chip computer control technology, will MCS251 Singlechip, ISD2560 voice chip integration, HT1621 LCD Driver IC and Integrated Circuits