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EM91220BP fiches techniques PDF

ELAN Microelectronics Corp - TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE

Numéro de référence EM91220BP
Description TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
Fabricant ELAN Microelectronics Corp 
Logo ELAN Microelectronics Corp 





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EM91220BP fiche technique
EM9E1M2921022S0ESRERIEIESS
TONE/PULTSOENSEW/PUITLSCEHSAWBITLCEHDAIBALLE EDRIAWLEIRTWHILTHCDLCIDNITNETRERFFAACCEE
GENERAL DESCRIPTION
The EM91220 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with
20-set memories . The EM91220 series provides necessary functions of telephone set for application in any
environment, such as Pulse dialing, Tone (DTMF) dialing, Handfree dialing, keying tone , mute and pulse
mute functions. Beside this, SDO (Serial Data Output) functions is provided in advance version that is designed
to drive LCD driver and voice synthesizer. In this application, the dialing numbers can be displayed on LCD
screen with EM32100 ( or EM32116 ).
FEATURES
• Tone/Pulse switchable.
Wide operating voltage from 2.0 V to 5.5 V.
Low operating current, 0.15 mA (Pulse) and 0.3 mA (Tone) typically.
• Adding resistor on keyboard scan pin that can select many telephone specifications, such as : Pulse rate,
M/B ratio, Flash time, Pause time, P-T wait time and keyboard type.
• SDO function supports LCD driver and voice synthesizer to indicate dialing numbers.
• Handfree function provides on-hook dialing and speakerphone application.
• 20-set three touch repertory memory, each one can store data up to 16 digits.
• A 32-digit LNB (last number) redial memory.
• A 32-digit SAVE redial memory.
• Keytone function provides rapidly keying recognition.
• Pulse mute function supports pulse dialing application.
• Using 3.579545 MHz crystal or ceramic resonator.
• Package forms: PDIP, skinny.
ORDERING INFORMATION
Versions list
VERSION
EM91220A
EM91220B
EM91220C
LNB KT SAVE
√√
√√
√√
HF SDO(LCD) PMUTE
√√
√√
* This specification are subject to be changed without notice.
10.1.1997 1

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