HT1621 -- RAM Mapping 32x4 LCD Controller for I/O MCU                                                                  (PATENTED)

General Description

The HT1621 is a 128 pattern (32x4), memory mapping, and HT1621 is 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 consumes low operating current owing to adopting capacitor type bias charge pump. The HT1621 series have many kinds of products that match various applications.

Features

• Logic operating voltage: 2.4V~3.3V
• LCD voltage: 3.6V~4.9V
• Low operating current 3uA at 3V
• External 32.768kHz crystal oscillator
• Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4 duty LCD applications
• Internal time base frequency sources
• Two selectable buzzer frequencies (2kHz/4kHz)
• Built-in capacitor type bias charge pump
• Time base or WDT overflow output
• 8 kinds of time base/WDT clock source
• 32x4 LCD driver
• Built-in 32x4-bit display RAM
• 3-wire serial interface
• Internal LCD driving frequency source
• Software configuration feature
• R/W address auto increment
• Data mode and command mode instructions
• Three data accessing modes
• 64-pin QFP package
• Data Sheet
• Revision History
• 封裝信息
  64-pin QFP 封裝
• 問答集
• 應用范例
• Selection Guide
• 產品型號索引

HT1621_中文PDF(點擊下載)