特性

• 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 data.
• Capable of driving up to 126 segments using 1/3 duty and up to 164 segments using 1/4 duty.
• Sleep mode and all segments off functions that are controlled from serial data.
• Switching between key scan output and segment output can be controlled from the serial data.
• The key scan operation enabled/disabled state can be controlled from the serial data.
• Switching between segment output port and general-purpose output port can be controlled from serial data.
• The common and segment output waveform frame frequency can be controlled from the serial data.
• Switching between RC oscillator mode and external clock mode can be controlled from the serial data.
• Serial data I/O supports CCB format communication 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.
• Provision of an on-chip voltage-detection type reset circuit prevents incorrect displays.