Holtek Semiconductor HT9205K
the HT9205K is 200KΩ typically. This pin is a CMOS output structure which receives HKS and HFO signals to control the dialer so as to connect or disconnect the telephone line.| Part No. | HT9205K |
|---|---|
| Datasheet | HT9205K Download |
| Manufacturer |  Holtek Semiconductor |
| Description | 5-Memory/6-Memory Tone/Pulse Dialer |
| Buy | Stock & Price |
FEATURES
● Universal specification● Operating voltage: 2.0V~5.5V
● Low stand-by current
● Low memory retention current: 0.1µA (Typ.)
● Tone/pulse switchable
● Interface with LCD driver
● 32 digits for redialing
● 32 digits for the SA memory dialing
● One-key redialing
● Pause and P→T key for PBX
● 4×5 keyboard matrix
● 3.58MHz crystal or ceramic resonator
● Hand-free control
● Hold-line control
● Pause, P→T can be saved for redialing
● Resistor options: – M/B ratio – Flash function and flash time – Pause and P→T duration – Pulse number – Keyboard form
● Memory number: – HT9205A/B/C/D: 5 memories – HT9205K: 6 memories
GENERAL DESCRIPTION
The HT9205 series tone/pulse dialers are CMOS LSIs for the telecommunication system. They are designed to meet various dialing specifications through resistor options matrix. The HT9205 series tone/pulse dialers are offered in various packages from 18 DIP to 24 SDIP. The 18 DIP version is suitable for low cost applications, while the 24 SDIP version su...
