PCD3330-1 datasheet(4/32 Pages) PHILIPS

4 / 32 page

1997 Jan 15

Philips Semiconductors

Product speciﬁcation

Multistandard repertory dialler/ringer with

EEPROM

PCD3330-1

GENERAL DESCRIPTION

The PCD3330-1 is a mixed-mode multistandard repertory

dialler/ringer IC fabricated in a low threshold voltage

CMOS technology.

The (maximum 13) repertory numbers, redial and various

country specifications are stored in EEPROM so that

memory retention is guaranteed for 10 years without using

a battery back-up.

National telecommunications specifications can be fulfilled

by changing a few bytes in EEPROM which contain the

different telephone timing and dialling procedures.

The two on-chip tone generators are used for Dual Tone

Multi-Frequency (DTMF) dialling, and for generating a

melody during ringing, which is activated when a correct

incoming ringer frequency is detected.

As an output transducer for the ringer, a loudspeaker

(ringer out via tone output) or a PXE (ringer out via the

special ringer output which generates square wave ringer

tones with a peak-to-peak voltage of VDD to VSS) can be

used.

The operating supply voltage is 1.8 V (2.5 V in EEPROM

erase/write and DTMF and ringer mode) to 6.0 V with a low

current consumption in all operating modes: standby,

conversation, dialling, programming and ringer.

ORDERING INFORMATION

TYPE

NUMBER

PACKAGE

NAME

DESCRIPTION

VERSION

PCD3330-1P

DIP28

plastic dual in-line package; 28 leads (600 mil)

SOT117-1

PCD3330-1T

SO28

plastic small outline package; 28 leads; body width 7.5 mm

SOT136-1

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