NT91215 Datasheet Tone / Pulse Dialer

Manufacturer: Novatek

Download the NT91215 datasheet PDF. This datasheet also includes the NT91214 variant, as both parts are published together in a single manufacturer document.

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NT91215 tone / pulse dialer by Novatek - Datasheet Preview — Note: The manufacturer provides a single datasheet file (NT91214_Novatek.pdf) that lists specifications for multiple related part numbers.

Datasheet Details

Part number	NT91215
Manufacturer	Novatek
File Size	258.90 KB
Description	Tone / Pulse Dialer
Download	NT91215 Download (PDF)

General Description

The NT91214/15 is a single-chip, silicon gate, CMOS integrated circuit with an on-chip oscillator for a 3.58MHz crystal or ceramic resonator.

It provides a dialing pulse (DP) or dual tone multi-frequency (DTMF) dialing.

A standard 4 x 4 matrix keyboard can be used to support either DP or DTMF modes.

Overview

( DataSheet : www.DataSheet4U.com ) NT91214/15 Series Tone/Pulse.

Key Features

T One touch redial operation T Tone/Pulse switchable T 32 digit capacity for redialing T Automatic mixed redialing (last number redial) of pulse T PABX auto-pause is 2.2 seconds T DTMF Timing: T to DTMF with multiple automatic access pauses Manual dialing: minimum duration for bursts and pauses Redialing: calibrated timing Hands-Free control function T Wide operating voltage range: 2V to 5.5V T Key-in beep tone output T Digits dialed manually after redialing are T T T T cascadable and stored.

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