Holtek Semiconductor HT9205D
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.| Part No. | HT9205D |
|---|---|
| Datasheet | HT9205D 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 18 DIP version is suitable for low cost applications, while the 24 SDIP version supplies versatile functions such as: Hold-line, Hand-free and LCD dialing number display interface, all of which are suitable for feature phone applications. Selection Table 1 16th June ’95 Package Information HT9205A/B/C/D/K 2 16th June ’95 Keyboard Information HT9205...
