LC737212M Datasheet - Sanyo Semicon Device

LC737212M Telephone Dialer IC with On-Chip Memory for Push- Button Telephones

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, .

LC737212M Features

* a single operation.

* STORE key Pressing the STORE key sets the system to memory store mode. Pressing the STORE key again during a memory store operation cancels all input data.

* HOLD ON/OFF key Controls the on/off state of off-hook mode. No key tone is output at this time.

LC737212M_SanyoSemiconDevice.pdf