UNISONIC TECHNOLOGIES CO., LTD

U9131X

Preliminary

CMOS IC

www.unisonic.com.tw

1 of 11

Copyright © 2013 Unisonic Technologies Co., Ltd

QW-R502-A34.a

TONE/PULSE DIALER WITH

REDIAL FUNCTION



DESCRIPTION

The UTC U9131X series are monolithic ICs that offer the dialing

signals in either pulse or tone mode. The UTC U9131X series

feature a redial memory.



FEATURES

* 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

SOP-18



ORDERING INFORMATION

Ordering Number

Package

Packing

Lead Free

Halogen Free

U9131XL-S18-T

U9131XG-S18-T

SOP-18

Tube

U9131XL-S18-R

U9131XG-S18-R

SOP-18

Tape Reel

U9131XAL-S18-T

U9131XAG-S18-T

SOP-18

Tube

U9131XAL-S18-R

U9131XAG-S18-R

SOP-18

Tape Reel

(1) T: Tube, R: Tape Reel

(2) S18: SOP-18

(3) L: Lead Free, G: Halogen Free

(4) refer to DIALER TYPE

U9131XAL-S18-T

(1)Packing Type

(2)Package Type

(3)Lead Free

(4)Dialer Type



DIALER TYPE

The different dialers in the UTC U9131X series are shown in the following table:

TYPE NO.

PULSE (ppS)

FLASH (mS)

FLASH PAUSE (mS)

PAUSE (S)

U91312

10/20

600

600

2.0

U91314

10/20

73

140

3.6

U91316

10/20

600

600

3.6

U91312A

10/20

300

300

2.0

U91314A

10/20

100

100

3.6