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MK53761 - REPERTORY DIALER

Datasheet Summary

Description

The MK53761 is a Silicon Gate CMOS IC that provides necessary signals for either DTMF or loop disconnect (pulse) dialing.

The MK53761 buffers up to 18 digits into memory that can be later redialed with a single key input.

Up to nine repertory numbers may be stored.

Features

  • provided by the PABX or a central office. July 1993 C4 DIP18 V+ MODE C1 C2 C3 VOSC1 OSC2 C4 N. C. 1 2 3 4 5 6 7 8 9 10 D93TL018 20 19 18 17 16 15 14 13 12 11 PULSE OUTPUT HKS R1 R2 R3 R4 MUTE OUTPUT.

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Datasheet preview – MK53761

Datasheet Details

Part number MK53761
Manufacturer STMicroelectronics
File Size 218.02 KB
Description REPERTORY DIALER
Datasheet download datasheet MK53761 Datasheet
Additional preview pages of the MK53761 datasheet.

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Full PDF Text Transcription

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www.DataSheet4U.com MK53761 REPERTORY DIALER . . . . . . . . . SINGLE CHIP DTMF AND PULSE DIALER SOFTSWITCH CHANGES SIGNALING MODE FROM PULSE TO TONE NINE NUMBER REPERTORY PLUS RECALL OF LAST NUMBER DIALED (18 digits each) FLASH KEY INPUT INITIATES TIMED HOOK FLASH 8 TONE PER SECOND DIALING IN TONE MODE AND 10 PPS IN PULSE MODE DTMF ACTIVE UNTIL KEY RELEASE MINIMUM DTMF DURATION/SEPARATION GUARANTEED (74/54 ms) PACIFIER TONE PROVIDES AUDIBLE INDICATION OF VALID KEY INPUT FOR NONDTMF KEY ENTRIES POWERED FROM TELEPHONE LINE, LOW OPERATING VOLTAGE FOR LONG LOOP APPLICATIONS DIP18 SO20 ORDERING NUMBERS : MK53761N00 MK53761D Figure 1 : Pin Connections.
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