BU97931FV-LB数据手册集成电路（IC）的显示驱动器规格书PDF

描述 Description

本产品是面向工业设备市场的产品，保证可长期稳定供货。 是适合这些用途的产品。

BU97931FVーLB是1/4、1/3占空比的Static通用LCD驱动器，最多可显示112段的LCD，适用于工业设备市场应用的LCD显示。内置显示用RAM，可减轻微控制器负荷，还无需外置部件，实现了低功耗。最多控制5个通用输出，可实现LED元件等的点亮，此外还内置1ch具有PWM功能的LED驱动器，还能实现背光、按钮LED等的照明。

特性 Features

• Long time support product for Industrial applications
• 1/4, 1/3duty or Static setting selectable
1/4duty driving: Max 112 segments
1/3duty driving: Max 84 segments
Static driving: Max 28 segments
• 1/3 bias setting
• Power supply for Interface: 1.8V to 3.6V
• Power supply for LCD: 2.7V to 5.5V
• Integrated LCD voltage driving circuit
• Integrated oscillation circuit for LCD frame frequency
• Line or Frame inversion driving selectable
• Integrated 5ch general purpose outputs (SEG selectable)
• Integrated 1ch LED driver able to support 256 step PWM illumination
• Support individual blink function with dedicated blink RAM integrated
• Support 3 wire serial interface
• Integrated voltage detected type power on reset circuit
• No external components required
• Low power consumption design