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EM91240

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 wai...

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SeekIC No. : 004336132 Detail

EM91240: 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 se...

EM91240 Data Sheet

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Part Number:
EM91240
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Upload time: 2024/4/28

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Product Details

Description



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.
· 40-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.


Pinout

Connection Diagram


Specifications

Items
Sym.
Rating
Unit
Power supply voltage
VDD
6.0Vdc
V
Input voltage range
VIN
Vss-0.3v~VDD+0.3v
V
Operating temperature
TOPR
0~+50
Storage temperature
TSTO
-55~125
Power consumption
PD
500
mW



Description

The EM91240 is a series of tone/pulse switchable dialers that is composed of T/P dialer and T/P dialer with 40-set memories. The EM91240 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 ).




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