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| HT1621 -- RAM Mapping 32x4 LCD Controller for I/O MCU |
| 概要 |
| 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 |
| 特点 |
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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
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| 相关开发工具 |
| HOLTEK 编程器/烧录器 |
HOLTEK 仿真器 |
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