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參數(shù)資料
| 型號： | HD66108TA0 |
| 廠商： | Hitachi,Ltd. |
| 英文描述： | (RAM-Provided 165-Channel LCD Driver for Liquid Crystal Dot Matrix Graphics) |
| 中文描述： | （內(nèi)存提供165通道的LCD液晶點(diǎn)陣圖形驅(qū)動程序） |
| 文件頁數(shù)： | 36/60頁 |
| 文件大?。?/td> | 337K |
| 代理商： | HD66108TA0 |
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HD66108
989
6. Clock and Frame Frequency
An input clock with a 200-kHz to 4-MH frequency can be used for the HD66108T. Note that raising
clock frequency increases current consumption although it reduces busy time and enables high-speed
operations. An optimum system clock frequency should thus be selected within 200 kHz to 4 MHz.
The clock frequency driving the LCD panel (= frame frequency) is usually 70 Hz to 90 Hz. Accordingly,
the HD66108T is so designed that the frequency-division ratio of the input clock can be selected. The
HD66108T generates around 80-Hz LCD frame frequency if the frequency-division ratio is 1. The
frequency-division ratio can be obtained from the following equation.
Ni =f
CLK
f
F
500
80
D1
×
×
Ni:
f
F
:
f
CLK
: Input clock frequency (kHz)
D1: Duty correction value 1
D1 = 1 when multiplexing duty ratio is 1/32, 1/48 or 1/64
D1 = 32/34 when multiplexing duty ratio is 1/34
D1 = 32/36 when multiplexing duty ratio is 1/36
D1 = 48/50 when multiplexing duty ratio is 1/50
D1 = 64/66 when multiplexing duty ratio is 1/66
Frequency-division ratio
Frame frequency required for the LCD panel (Hz)
The frequency-division ratio nearest the value obtained from the above equation must be selected;
selectable frequency-division ratios by internal registers are 2, 1, 1/2, 1/3, 1/4, 1/6, and 1/8.
7. Display Off Function
The HD66108T has a display off function which turns off display by rewriting the contents of the internal
register. This prevents random display at power-on until display memory is initialized.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| HD66108T00 | (RAM-Provided 165-Channel LCD Driver for Liquid Crystal Dot Matrix Graphics) |
| HD66110ST | Column Driver(大液晶顯示平面的LCD驅(qū)動器) |
| HD66112T | 160-Channel Segment Driver for Dot-Matrix Graphic Liquid Crystal Display in Super-Slim TCP(用于點(diǎn)陣圖形LCD的160通道段碼驅(qū)動器) |
| HD66113T | 120-Channel Common Driver Packaged in a Slim Tape Carrier Package(點(diǎn)陣圖形LCD120通道驅(qū)動器) |
| HD66115T | 160-Channel Common Driver Packaged in a Slim Tape Carrier Package(點(diǎn)陣圖形LCD160通道驅(qū)動器) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| HD66108TB0 | 制造商:HITACHI 制造商全稱:Hitachi Semiconductor 功能描述:(RAM-Provided 165-Channel LCD Driver for Liquid Crystal Dot Matrix Graphics) |
| HD66110RT | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66110RTA8 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66110RTB0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
| HD66110RTB1 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LCD Display Driver |
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