LC75857W数据手册集成电路（IC）的显示驱动器规格书PDF

描述 Description

The LC75857W is a 1/3 duty and 1/4 duty LCD display driver that can directly drive up to 164 segments and can control up to four general-purpose output ports. This product also incorporate a key scan circuit that accepts input from up to 30 keys to reduce printed circuit board wiring.

特性 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 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 'computer control bus' 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.

简介

LC75857W属于集成电路（IC）的显示驱动器。由制造生产的LC75857W显示驱动器显示驱动器是一种集成电路 (IC)，可在微处理器 (MPU)、微控制器 (MCU) 或其他电路系统之间提供转换、接口和控制，用于 LCD、LED、OLED、DLP、真空荧光和 AMOLED 等显示器。可能的通信接口和协议包括模拟、BCD、I2C、并行、串行、SMBus、SPI 和 QSPI。