LC737212M Datasheet | SANYO

Ordering number : EN5203203 CMOS LSI LC737212, LC737212M Telephone Dialer IC with On-Chip Memory for PushButton Telephones Overview The LC737212 and LC737212M are CMOS LSI telephone dialers for pushbutton telephones. They support both DTMF and pulse dialing. These products include 25 16-digit memories for storing telephone numbers and one 63-digit memory for redialing, and they provide, in a single chip, all the functions required for dialing and control for a standard independent telephone, including on-hook dialing and a hold function. They also provide a serial I/O interface for connection to a microcontroller. Functions - Fabrication in a CMOS process that allows these circuits to...