合泰LCD显示驱动HT1621

合泰LCD显示驱动HT1621是带串行接口的RAM映射型32＊4点LCD驱动与控制电路,HT1621工作电压范围：2.4～5.2V,HT1621内置256kHz　RC谐振器q、外接32.768kHz晶振或256kHz频率源输入、可供选择的1／2或1／3偏置及可供选择的1／2，1／3或1／4占空比，合泰LCD显示驱动HT1621适应各类LCD的应用、内部基准时钟频率源、两种可供选择的蜂鸣器驱动频率（2kHz／4kHz）、待机指令可用来降低功率消耗、内置基准时钟发生器及看门狗定时器、基准时钟或看门狗定时器溢出输出、8类基准时钟源和8类看门狗定时器时钟源、 3线的串行接口、32＊4点液晶驱动、内置32＊4位显示存储器、合泰LCD显示驱动HT1621内置LCD驱动频率源、数据模式和指令模式指令、读／写地址自动递增、三种数据访问模式、VLCD引脚调整LCD工作电压。（深圳：13556886847 陈 生）

工作电压：2.4—5.2V

内置256kHzRC振荡器

可外接32.768kHz晶体或256kHz外置时钟频率输入

可选择1/2或1/3偏置及1/2或1/3或1/4周期LCD应用方式

内置基本时钟频率源

2k和4k蜂鸣器频率

省电模式可降低功耗      内置时基发生器和WDT      时基发生器和WDT溢出输出      8种时基/WDT时钟源      32×4LCD驱动器      内置32×4显示存储器（RAM）      仅需3条通信线与控制器连接      内含LCD驱动信号源      软件配置方式      数据模式和命令模式指令      读写（R/W）地址自动增加      三数据访问模式      VLCD引脚可调整LCD工作电压

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

Operating voltage : 2.4V~5.2V
Built-in 256kHz RC oscillator
External 32.768kHz crystal or 256kHz frequency source input
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)
Power down command reduces power consumption
Built-in time base generator and WDT
Time base or WDT overflow output
8 kinds of time base/WDT clock sources
32x4 LCD driver
Built-in 32x4 bit display RAM
3-wire serial interface
Internal LCD driving frequency source
Software configuration feature
Data mode and command mode instructions
R/W address auto increment
Three data accessing modes
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
 

深圳：13556886847   陈生