HT9170 DTMF Receiver
Features
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Operating voltage: 2.5V~5.5V Minimal external components No external filter is required Low standby current (on power down mode) Excellent performance
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Tristate data output for mC interface 3.58MHz crystal or ceramic resonator 1633Hz can be inhibited by the INH pin HT9170B: 18-pin DIP package HT9170D: 18-pin ...
