概述：
HT1621B 是128模式(32x4)，内存映射和多功能液晶驱动。HT1621B的S/W配置特性使得它适合于多种LCD应用包括液晶显示模块和显示子系统。只用三或四线的即可满足主机控制器和HT1621B之间的连接要求。 HT1621B包含一个电源关闭命令来降低功耗。
The HT1621B is a 128 pattern (32x4), memory mapping, and multi-function LCD driver. The S/W configuration feature of theHT1621B makes it suitable for multiple LCD applications including LCD modules and display sub-systems. Only three or four linesare required for the interface between the host controller and the HT1621B. The HT1621B contains a power down commandto reduce power consumption.
特性：
_工作电压: 2.4V ~ 5.2V
Operating voltage: 2.4V ~ 5.2V
_内置256kHz电阻电容(RC)振荡器
Built-in 256kHz RC oscillator
_外部32.768kHz 晶体或 256 kHz 频率源的输入
External 32.768kHz crystal or 256 kHz frequency source input
_1/2或1/3 偏压选择，和1/2或1/3或1/4液晶显示应用程序的选择
Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4duty LCD applications
_内部时间基准频率源
Internal time base frequency sources
_两个可选蜂鸣器的频率 (2kHz/4kHz)
Two selectable buzzer frequencies (2kHz/4kHz)
_关机命令降低功耗
Power down command reduces power consumption
_内置的时间基准发生器(generator)和监视定时器(WDT)
Built-in time base generator and a WDT
_时间基准或WDT 溢出输出
Time base or WDT overflow output
_8种时间基准/监视定时器的时钟源
8 kinds of time base/WDT clock sources
_32x4 LCD驱动器
32x4 LCD driver
_内置32x4位显示RAM
Built-in 32x4 bit display RAM
_3线串行接口
3-wire serial interface
_内部LCD驱动频率源
Internal LCD driving frequency source
_软件配置特性
Software configuration feature
_数据模式和命令模式指令
Data mode and command mode instructions
_R/W地址自动递增
R/W address auto increment
_三种数据访问模式
Three data accessing modes
_提供 VLCD引脚来调整 LCD 工作电压
VLCD pin for adjusting LCD operating voltage
_SSOP-48P 封装
HT1621B: 48-pin SSOP packages
HT1621B 是128模式(32x4)，内存映射和多功能液晶驱动。HT1621B的S/W配置特性使得它适合于多种LCD应用包括液晶显示模块和显示子系统。只用三或四线的即可满足主机控制器和HT1621B之间的连接要求。 HT1621B包含一个电源关闭命令来降低功耗。
The HT1621B is a 128 pattern (32x4), memory mapping, and multi-function LCD driver. The S/W configuration feature of theHT1621B makes it suitable for multiple LCD applications including LCD modules and display sub-systems. Only three or four linesare required for the interface between the host controller and the HT1621B. The HT1621B contains a power down commandto reduce power consumption.
特性：
_工作电压: 2.4V ~ 5.2V
Operating voltage: 2.4V ~ 5.2V
_内置256kHz电阻电容(RC)振荡器
Built-in 256kHz RC oscillator
_外部32.768kHz 晶体或 256 kHz 频率源的输入
External 32.768kHz crystal or 256 kHz frequency source input
_1/2或1/3 偏压选择，和1/2或1/3或1/4液晶显示应用程序的选择
Selection of 1/2 or 1/3 bias, and selection of 1/2 or 1/3 or 1/4duty LCD applications
_内部时间基准频率源
Internal time base frequency sources
_两个可选蜂鸣器的频率 (2kHz/4kHz)
Two selectable buzzer frequencies (2kHz/4kHz)
_关机命令降低功耗
Power down command reduces power consumption
_内置的时间基准发生器(generator)和监视定时器(WDT)
Built-in time base generator and a WDT
_时间基准或WDT 溢出输出
Time base or WDT overflow output
_8种时间基准/监视定时器的时钟源
8 kinds of time base/WDT clock sources
_32x4 LCD驱动器
32x4 LCD driver
_内置32x4位显示RAM
Built-in 32x4 bit display RAM
_3线串行接口
3-wire serial interface
_内部LCD驱动频率源
Internal LCD driving frequency source
_软件配置特性
Software configuration feature
_数据模式和命令模式指令
Data mode and command mode instructions
_R/W地址自动递增
R/W address auto increment
_三种数据访问模式
Three data accessing modes
_提供 VLCD引脚来调整 LCD 工作电压
VLCD pin for adjusting LCD operating voltage
_SSOP-48P 封装
HT1621B: 48-pin SSOP packages
