SA589 datasheet(1/14 Pages) SAMES

部件名	SA589

功能描述	LD/DTMF SWITCHABLE DIALLERS WITH DEDICATED KEYS FOR 20 MEMORIES

PDF	14 Pages

Scroll/Zoom	100%

制造商	SAMES [Sames]

网页	http://www.sames.co.za

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1 / 14 page

sames

4120

PDS039-SA589-001

REV. C

09-03-1995

LD/DTMF SWITCHABLE DIALLERS

WITH DEDICATED KEYS FOR 20 MEMORIES

FEATURES

n Selectable Loop-Disconnect or DTMF

Modes

n Keypad Switchable LD to DTMF

n 20 x 24-Digit Memories, (each with

Dedicated Key)

n 24 Digit Last Number Redial

n Selectable Make/Break Ratios 2:1 and 3:2

DESCRIPTION

The SA589 family are keypad switchable LD/

DTMF dialler devices with a last number

redial facility and twenty 24-digit memories

each with its own dedicated dialling key.

Three operating modes are available: LD

only mode, DTMF only mode and LD mode

with the ability to switch temporarily to DTMF

mode from the keypad during a call. This last

mode enables subscribers to access such

services as home banking. Mixed LD and

DTMF numbers can also be stored in memory.

The SA589 devices are pin compatible with

the SAMES switchable dialler families SA541,

SA545, SA585, SA587 and SA588 - providing

a complete range of telephone features within

a single PCB and circuit design. Metal mask

and pin selectable options are available to

service specific requirements of particular

countries and customers.

n Uses Inexpensive 560kHz Ceramic

Resonator

n Batteryless operation - Low Power CMOS

n Mask Programmable Options to suit

application

n Timed Break Recall (Flash) and Earth

Recall

FIG. 1 PIN CONNECTIONS

SA589

Package:

DIP28

1/14

MASK

DR-00684

ROW5

14

V

SS

DD

HSW

PAUSE OUT

13

12

10

11

6

7

8

9

OSC OUT

OSC IN

FILT IN

FILT OUT

15

ROW6

19

18

17

16

COL1

MFOUT

MUTE

COL7

23

22

20

ROW1

21

COL2

ROW2

COL3

SA589

1

NC

2

3

4

5

SELECT

COL6

IMP

28

ROW7

27

26

25

24

COL4

COL5

ROW4

ROW3

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