LC75838E Overview
ENN7135 CMOS IC LC75863E, 75863W 1/3 Duty LCD Display Drivers with Key Input Function Overview The LC75863E and LC75863W are 1/3 duty LCD display drivers that can directly drive up to 75 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.
LC75838E Key Features
- Key input function for up to 30 keys (A key scan is performed only when a key is pressed.)
- 1/3duty
- 1/2bias and 1/3duty
- 1/3bias drive schemes can be controlled from serial data (up to 75 segments)
- Sleep mode and all segments off functions that are controlled from serial data
- Segment output port/general-purpose output port function switching that is controlled from serial data
- Serial data I/O supports CCB format munication with the system controller
- Direct display of display data without the use of a decoder provides high generality
- Independent VLCD for the LCD driver block (VLCD can be set to in the range VDD-0.5 to 6.0 volts.)
- Provision of an on-chip voltage-detection type reset circuit prevents incorrect displays
