The LC75742E and LC75742W are 1/2 duty VFD drivers that can be used for electronic tuning frequency display and other applications under the control of a micro controller. These products can directly drive VFDs with up to 82 segments. It also includes a key scan circuit and can support input from up to 30 keys and can thus reduce the number of lines to the front panel in application systems.
• Key input from up to 30 keys
(Key scans are only performed when keys are pressed.)
• 82 segment outputs.
• Noise reduction circuits are built into the output drivers.
• Serial data I/O supports CCB format communication with the system controller.
• Dimmer and sleep mode can be controlled by serial data input.
• High generality since display data is displayed without the intervention of a decoder.