SC91215B Overview
The SC91214/15 Series is a single-chip, silicon gate, CMOS integrated circuit with an on-chip oscillator for a 3.58MHZ crystal or ceramic resonator. It provides a dialing pulse (DP) or dual tone multifrequency (DTMF) dialing. A standard 4 X4 matrix keyboard can be used to support either DP or DTMF modes.
SC91215B Key Features
- One touch redial operation
- Tone/Pulse switchable
- 32 digit capacity for redialing
- PABX auto-pause is 2.2 seconds
- DTMF Timing: Manual dialing: minimum duration for bursts and pauses Redialing: calibrated timing
- Hands-Free control function
- Wide operating voltage range: 2V to 5.5V
- Key-in beep tone output
- Digits dialed manuall