The document describes the LC7363J and LC7363JM, which are DTMF/OUTPUT-PULSE dialer CMOS LSIs designed for use in pushbutton telephones. These devices feature a low voltage CMOS process allowing direct operation from telephone lines and support both single contact and standard 2-of-7 or 2-of-8 keypads.
| Supply Voltage (DTMF mode) | 2.0 to 6.0V |
|---|---|
| Supply Voltage (OUTPUT-PULSE mode) | 1.5 to 6.0V |
| Operating Temperature | -30 to +70°C |
| Package Type (LC7363J) | Dual-in-line shrink 22-pin package |
| Package Type (LC7363JM) | Miniflat 30-pin package |
| Redial Memory Capacity | 31 digits |
The device uses a crystal resonator of 3.579545MHz.
Yes, it is pin-selectable between 33.2% and 40%.
The maximum operating current is 1.0mA for DTMF mode and 500µA for OUTPUT-PULSE mode at 3.5V.