SA5419 Ver la hoja de datos (PDF) - South African Micro Electronic Systems

Número de pieza

componentes Descripción

Fabricante

SA5419

PULSE/DTMF SWITCHABLE DIALLERS

South African Micro Electronic Systems 

sames

SA541, SA54L1

PULSE/DTMF SWITCHABLE DIALLERS

FEATURES

s Selectable Loop-Disconnect (Pulse)

or DTMF (Tone) dialling modes

s Keypad switchable Loop-Disconnect to

DTMF during a call

s 32 Digit Last Number Redial (LNR) s Selectable Break:Make Ratios 2:1 or

s Selectable Interdigit Pause (IDP)

3:2

500ms or 800ms

s Uses inexpensive 560KHz ceramic

s Operates with inexpensive single con-

resonator

tact keypad

s Earth Loop Recall and Timed Break

s On-chip Darlington transistor pair for

Recall (Timed Flash)

DTMF tone filtering

s Low on-hook Supply Current options

s Low power CMOS technology enables

direct operation from Telephone line

SA5413 - 5µA @ 2.5V

SA5416 - 1µA @ 2.5V

SA5419 - 1µA @ 3.0V

s

Optional use of external capacitor for

oscillator

s

Call, barring/locking feature available

on the SA54L1

PIN CONNECTIONS:

SA541

PIN CONNECTIONS:

SA54L1

M57-1529

PDS039-SA541-001

REV. B

1/16

02-09-94

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