HT9170D
HT9170D is DTMF Receiver manufactured by Holtek Semiconductor.
HT9170B/HT9170D DTMF Receiver
Note that the HT9170B device, although mentioned in this datasheet, has already been phased out and is presently no longer available.
Features
- Operating voltage: 2.5V~5.5V
- Minimal external ponents
- No external filter is required
- Low standby current (on power down mode)
- Excellent performance
- Tristate data output for MCU interface
- 3.58MHz crystal or ceramic resonator
- 1633Hz can be inhibited by the INH pin
- HT9170B: 18-pin DIP package
HT9170D: 18-pin SOP package
General Description
The HT9170B/D are Dual Tone Multi Frequency (DTMF) receivers integrated with digital decoder and bandsplit filter functions as well as power-down mode and inhibit...
