| Payment Terms | T/T, Western Union, Paypal | 
| Supply Ability | 10000pcs | 
| Delivery Time | 1-3Days | 
| Packaging Details | BOX | 
| Series | DTMF Receiver Chips | 
| Package | SOP8 DIP8 | 
| Feature | Excellent performance | 
| Application | Circuit Board Chip | 
| D/c | New & Original Allegro Only | 
| Lead time | 0-3 Days | 
| Brand Name | HOLTEK Original | 
| Model Number | HT9170B | 
| Certification | ROHS | 
| Place of Origin | Original & New | 
View Detail Information
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Product Specification
| Payment Terms | T/T, Western Union, Paypal | Supply Ability | 10000pcs | 
| Delivery Time | 1-3Days | Packaging Details | BOX | 
| Series | DTMF Receiver Chips | Package | SOP8 DIP8 | 
| Feature | Excellent performance | Application | Circuit Board Chip | 
| D/c | New & Original Allegro Only | Lead time | 0-3 Days | 
| Brand Name | HOLTEK Original | Model Number | HT9170B | 
| Certification | ROHS | Place of Origin | Original & New | 
| High Light | HT9170D ,DTMF Receiver Circuit Board IC ,HT9170B | ||
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 mode operations. Such devices use digital counting techniques to detect and decode all the 16 DTMF tone pairs into a 4-bit code output.
Highly accurate switched capacitor filters are implemented to divide tone signals into low and high group signals. A built-in dial tone rejection circuit is provided to eliminate the need for pre-filtering.
Features
  Operating voltage: 2.5V~5.5V
  Minimal external components
  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
Regular Holtek parts, 1200 types in stocks!
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Company Details
Business Type:
Distributor/Wholesaler,Agent,Exporter 
Year Established:
2012 
Total Annual:
500,000-100,0000
Employee Number:
100~120 
Ecer Certification:
Active Member 
ATFU Electronics LTD is a professional distributor of imported original integrated circuit chip with 7 years experience. ATFU mainly focus on LED Driver IC, MCU chip, Flash memory chip and programmerable chip IC at the very beginning. With the development of ATFU, also based on the v... ATFU Electronics LTD is a professional distributor of imported original integrated circuit chip with 7 years experience. ATFU mainly focus on LED Driver IC, MCU chip, Flash memory chip and programmerable chip IC at the very beginning. With the development of ATFU, also based on the v...
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