HT9302B数据手册Holtek中文资料规格书

描述 Description

The HT9302 series tone/pulse dialers are CMOS LSIs for telecommunication systems. They are designed to meet various dialing specifications through resistor option matrix.
The HT9302 series provide the pin-selected lock function, Hold-line, Hand-free and LCD dialing number display interface, all of which are suitable for feature phone applications. HT9302G is simpler than HT9302X version. It provides only a redialing memory for simple low-cost system applications.
 

特性 Features

•Universal specification
•Operating voltage: 2.0V~5.5V
•Low standby current
•Low memory retention current: 0.1µA (Typ.)
•Tone/pulse switchable
•Interface with LCD driver
•32 digits for redialing
•32 digits for SA memory dialing
•One-key redialing
•Pause and P->T key for PBX
•4x4 keyboard matrix
•3.58MHz crystal or ceramic resonator
•Hand-free control
•Hold-line control
•Pause, P->T can be saved for redialing
•Lock function
•Keytone function
•Resistor options: - M/B ratio - Flash function and flash time - Pause and P->T duration - Pulse number
•HT9302A: 18-pin DIP package HT9302B: 22-pin SKDIP package HT9302C: 20-pin DIP package HT9302D: 24-pin SKDIP package HT9302G: 16-pin DIP/NSOP package