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SA589 Datasheet(PDF) 1 Page - Sames |
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SA589 Datasheet(HTML) 1 Page - Sames |
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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 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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