SA589 Overview
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.
SA589 Key Features
- Low Power CMOS n Mask Programmable Options to suit application n Timed Break Recall (Flash) and Earth Recall
- providing a plete range of telephone features within a single PCB and circuit design. Metal mask and pin selectable opti
- a logic 1 at this pin is used to indicate 'OffNegative supply Positive supply Active high indicating a pause when dialli