液晶驱动HT1621 HT1621

HT1621Single-chip Introduction（English）

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. 

Features

• HT1621Operating voltage : 2.4V~5.2V
• HT1621  Built-in 256kHz RC oscillator
• HT1621  External 32.768kHz crystal or 256kHz frequency source input
• HT1621  Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4 duty LCD applications
• HT1621  Internal time base frequency sources
• HT1621 had Two selectable buzzer frequencies (2kHz/4kHz)
• HT1621   Power down command reduces power consumption
• HT1621   Built-in time base generator and WDT
• HT1621   Time base or WDT overflow output
• HT16218 kinds of time base/WDT clock sources
• HT1621 had 32x4 LCD driver
• HT1621   Built-in 32x4 bit display RAM
• HT1621 had 3-wire serial interface
• HT1621  Internal LCD driving frequency source
• HT1621  Software configuration feature
• HT1621   Data mode and command mode instructions
• HT1621   R/W address auto increment
• HT1621 had Three data accessing modes
• HT1621   VLCD pin for adjusting LCD operating voltage
• HT1621: 48-pin SSOP package
  HT1621B: 48-pin DIP/SSOP/LQFP package
  HT1621D: 28-pin SKDIP package
  HT1621G: Gold bumped chip
• Data Sheet
• Revision History
• 封装信息
  28-pin SKDIP 封裝
  44-pin QFP 封裝
  48-pin SSOP 封裝
  48-pin LQFP 封裝
• 问答集
• 应用范例