SA54L59 Ver la hoja de datos (PDF) - South African Micro Electronic Systems

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SA54L59

PULSE/DTMF SWITCHABLE DIALLERS WITH 10 REPERTORY MEMORIES

South African Micro Electronic Systems 

sames

SA545

SA545, SA54L5

PULSE/DTMF SWITCHABLE DIALLERS WITH 10 REPERTORY

MEMORIES

FEATURES

s Selectable Loop-disconnect (Pulse) or s Selectable Break:Make Ratios 2:1 or

DTMF (Tone) dialling modes

3:2

s 10 x 24 Digit Repertory Dialling Stores s Uses inexpensive 560KHz ceramic

s 24 Digit Last Number Redial (LNR)

resonator

s Selectable Interdigit Pause (IDP) s Earth Loop Recall and Timed Break

500ms or 800ms

Recall (Timed Flash)

s Operates with inexpensive single s Low on-hook Supply Current Options

contact keypad

SA54X53 - 5µA @ 2.5V

SA54X56 - 1µA @ 2.5V

s On-chip Darlington transistor pair for

SA54X59 - 1µA @ 3.0V

DTMF tone filtering

s Call, barring/locking feature available

s Low power CMOS technology enables

on the SA54L5

direct operation from Telephone line

s Optional use of external capacitor for

s Keypad switchable Loop-Disconnect to

oscillator

DTMF during a call

PIN CONNECTIONS:

SA545

PIN CONNECTIONS:

SA54L5

M63-1961

sames

PDS039-SA545-001

REV. B

1/18

31-08-94

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