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HT1621B

2022/3/30 22:56:26
詳細介紹

Features

Operating voltage: 2.4V ~ 5.2V
Built-in 256kHz RC oscillator
External 32.768kHz crystal or 256 kHz 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 a 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

General Description

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 sub-systems. Only three or four lines are required for the interface between the host controller and the HT1621. The HT1621 contains a power down commandtoreduce power consumption.






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