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问 答 1: 不行。 答 2: 来电显示http://www.holtek.com.cn/china/products/comm_2.htm

Part No.  Description VDD OSC Frequency Package
HT9200A
HT9200B DTMF generator
2.5V~5.5V 3.58MHz 8DIP/SOP
14SOP
HT9170B
HT9170D DTMF receiver
2.5V~5.5V 3.58MHz 18DIP
18SOP
HT9020B Call progress tone detector
2.5V~5.5V 32768Hz 8DIP
HT9032C
HT9032D FSK decoder
3.5V~5.5V 3.58MHz 16DIP/SOP
8DIP/SOP
HT9033* CAS tone decoder
3.5V~5.5V 3.58MHz 16DIP/SOP
答 3: 谢谢啊！