EM91810A - TONE/PULSE SWITCHABLE DIALER WITH LCD INTERFACE
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, E
EM91810A 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. Minimum intertone pause is 98ms or 8
