EM91810B Overview
Description
The EM91810A/B are Tone/Pulse switchable dialer which are fabricated in CMOS technology with wide operating voltage for both tone and pulse mode, and consumes very low memory retention current in ON-HOOK state. EM91810A/B also provide SDO (serial data output) function to drive LCD driver (EM32100, EM32116, EM32117) and voice synthesizer.
Key Features
- Tone/pulse switchable dialer
- One 32-digit last number redial memory
- Pulse to tone (P→T) is provided for PBX operation
- Flash key is available
- Minimum tone duration is 98ms or 83ms
