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U9131X - TONE/PULSE DIALER

Unisonic Technologies

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Datasheet Details

Part number	U9131X
Manufacturer	Unisonic Technologies
File Size	234.98 KB
Description	TONE/PULSE DIALER
Datasheet	U9131X-UnisonicTechnologies.pdf

U9131X Product details

Description

The UTC U9131X series are monolithic ICs that offer the dialing signals in either pulse or tone mode.

Features

S.
Uses 4×4 keyboard.
Pulse-to-tone (P→T) keypad for long distance call operation.
Easy operation with redial, flash, pause, and P→T keypads.
32 digits for redial memory.
Flash, Pause, P→T (pulse-to-tone) can be stored as a digit in memory.
Switchable dialing mode：DTMF/Pulse.
Switchable beak/make ratio.
Minimum tone output duration: 100mS.
Minimum intertone pause: 100mS.
On-chip power-on reset.
Uses 3.579545MHz crystal or ceramic resonator.

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Published: Jan 28, 2016 |