Datasheet Summary
Ordering number : E- N7980
LC75857E LC75857W
Advance Information
CMOS LSI
1/3, 1/4 Duty LCD Driver with Key Input Function http://onsemi.
Overview
The LC75857E and LC75857W are 1/3 duty and 1/4 duty LCD display drivers that can directly drive up to 164 segments and can control up to four general-purpose output ports. These products also incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring.
Features
- Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)
- 1/3 duty and 1/4 duty drive schemes can be controlled from serial data.
- 1/2 bias and 1/3 bias drive schemes can be controlled from serial...
