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.
NT91215 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 Red
Datasheet Details
NT91215, NT91214
Novatek
258.90 KB
Tone / pulse dialer.
This datasheet PDF includes multiple part numbers: NT91215, NT91214.
Please refer to the document for exact specifications by model.
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