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MV4325 Datasheet PROGRAMMABLE KEYPAD PULSE DIALLER

Manufacturer: Plessey

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Datasheet Details

Part number MV4325
Manufacturer Plessey
File Size 207.73 KB
Description PROGRAMMABLE KEYPAD PULSE DIALLER
Download MV4325 Download (PDF)

Overview

MV4325 MV4325 PROGRAMMABLE KEYPAD PULSE DIALLER The MV4325 Keypad Pulse Diallercontains all the logic necessary to interface a 2 of 7 keypad and convert this key information to control and mute pulses simulating a tele· phone rotary dial.

The MV4325 has programmable access pause capability to provide automatic interruption of diall· ing needed when accessing the toll network, WATS line or public network.

The device is fabricated using Plessey Semiconductors' ISO·CMOS technology which enables the device to function down to 2.0V making it ideal for long loop operation.

Key Features

  • DG18.
  • Last Number Redial.
  • Multiple Access Pause Programming.
  • Any Valid Keypad Input or HOLD IN Causes Exit from Access Pause.
  • Oscillator Start Up Controlled from Keypad Input.
  • Oscillator Power Down whilst not Dialling.
  • 300 Hz Key Tone indicates Valid Key.
  • 2.0V to 7.0V Supply Voltage Operating Range.
  • Stores up to 20 Digits and Access Pauses.
  • Digit Memory Retained down to 1.0V at 1JAA.
  • Selectable Mark/Space.

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