HT1621中文资料RAM Mapping 32x4 LCD Controller for I/O MCU数据手册Holtek规格书

描述 Description

(专利权核准)(44QFP 限用产品)(44QFP 产品终止讯息) The HT1621 is a 128 pattern (32x4), memory mapping, and multi-function LCD driver. The S/W configuration feature of the HT1621 makes it suitable for multiple LCD applications including LCD modules and display subsystems. Only three or four lines are required for the interface between the host controller and the HT1621. The HT1621 contains a power down command to reduce power consumption.

特性 Features

• Built-in 256kHz RC oscillator
• Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4 duty LCD applications
• Two selectable buzzer frequencies (2kHz/4kHz)
• Built-in time base generator and WDT
• 8 kinds of time base/WDT clock sources
• Built-in 32x4 bit display RAM
• Internal LCD driving frequency source
• Data mode and command mode instructions
• Three data accessing modes
• HT1621: 44-pin LQFP package
HT1621B: 48-pin SSOP/LQFP packages
HT1621G: Gold bumped chip