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HT9274/CHIP, HT927414DIP, HT9302

Table of contents:
Info of HT9274/CHIP
Info of HT927414DIP
Info of HT9302

HT9274/CHIP, HT927414DIP, HT9302 Selling Leads, Datasheet

MFG:HOLTEK Package Cooled:SMD/DIP D/C:06+

HT9274/CHIP, HT927414DIP, HT9302 Picture

HT9274/CHIP, HT927414DIP, HT9302 Datasheet download

Five Points

Part Number: HT9274/CHIP

MFG: HOLTEK

Package Cooled: SMD/DIP

D/C: 06+

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HT9302 General 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.

HT9302 Maximum Ratings

Supply Voltage ...........................................-0.3V to 6V
Input Voltage ..............................V_SS-0.3 to V_DD+0.3V
Storage Temperature ...........................-50 to 125
Operating Temperature ..........................-20 to 75

Note: These are stress ratings only. Stresses exceeding the range specified under Absolute Maximum Ratings may cause substantial damage to the device. Functional operation of this device at other conditions beyond those listed in the specification is not implied and prolonged exposure to extreme conditions may affect device reliability.

HT9302 Features

` Universal specification
` Operating voltage: 2.0V~5.5V
` Low standby current
` Low memory retention current: 0.1A (typ.)
` Tone/pulse switchable
` Interface with LCD driver
` 32 digits for redialing
` 32 digits for SA memory dialing
` One-key redialing
` Pause and PT key for PBX
` 4x4 keyboard matrix
` 3.58MHz crystal or ceramic resonator
` Hand-free control
` Hold-line control
` Pause, PT can be saved for redialing
` Lock function
` Resistor options
- M/B ratio
- Flash function and flash time
- Pause and PT 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 package

HT9302 Connection Diagram

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