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HT1620 -- RAM Mapping 32x4 LCD Controller
for I/O MCU
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| 概要 |
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The HT1620 is a 128 pattern (32x4), memory mapping,
and multi-function LCD driver. The S/W configuration
feature of the HT1620 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 HT1620. The HT1620 consumes low operating
current owing to adopting capacitor type bias charge
pump. The HT162X series have many kinds of products
that match various applications. |
| 特点 |
Logic operating voltage: 2.4V~3.3V
LCD voltage: 3.6V~4.9V
Low operating current 3uA at 3V
External 32.768kHz crystal oscillator
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)
Built-in capacitor type bias charge pump
Time base or WDT overflow output
8 kinds of time base/WDT clock source
32x4 LCD driver
Built-in 32x4-bit display RAM
3-wire serial interface
Internal LCD driving frequency source
Software configuration feature
R/W address auto increment
Data mode and command mode instructions
Three data accessing modes
64-pin QFP package
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