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參數資料
| 型號： | LC75853NE |
| 廠商： | Sanyo Electric Co.,Ltd. |
| 英文描述： | 1/3 Duty General-Purpose LCD Display Driver(1/3占空通用LCD顯示驅動器) |
| 中文描述： | 1 / 3職務通用液晶顯示驅動程序（1 / 3占空通用液晶顯示驅動器） |
| 文件頁數： | 22/24頁 |
| 文件大小： | 418K |
| 代理商： | LC75853NE |
Timing chart
t3: Key scan execution time when the key data agreed for two key scans. (615 T (s))
t4: Key scan execution time when the key data did not agree for two key scans and the key scan was executed again. (1230 T (s))
1
f
OSC
T =
t5: Key address (43H) transfer time
t6: Key data read time
Explanation
In this technique, the controller uses a timer to determine key on/off states and read the key data. The controller
must check the DO state when CE is low every t7 period without fail. If DO is low, the controller recognizes that a
key has been pressed and executes the key data read operation.
The period t7 in this technique must satisfy the following condition.
t7 > (t5 + t6 + t4)
If a key data read operation is executed when DO is high, the read key data (KD1 to KD30) and sleep acknowledge
data (SA) will be invalid.
No. 4967-22/24
LC75853NE, 75853NW
Key input
Key scan
Controll(key on)
Key data read
Key
Controll(key on)
Controll(key off)
Controll(key on)
Controll(key off)
Key data read request
相關PDF資料 |
PDF描述 |
|---|---|
| LC75854E | 1/4 Duty LCD Display Driver with Key Input Function(1/4占空具有鍵輸入功能LCD顯示驅動器) |
| LC75864E | 1/4 Duty LCD Display Drivers with Key Input Function |
| LC75873NE | 1/3 Duty General Purpose LCD Display Driver(1/3占空普通用途LCD顯示驅動器) |
| LC75874E | 1/4-Duty General-Purpose LCD Display Driver(1/4占空通用LCD顯示驅動器) |
| LC75878W | 1/8 to 1/10 Duty General-Purpose LCD Display Drivers |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LC75853NE-E | 功能描述:LCD 驅動器 RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| LC75853NEHS-E | 制造商:ON Semiconductor 功能描述:LCD DISPLAY DRIVER - Trays |
| LC75853NW | 制造商:SANYO 制造商全稱:Sanyo Semicon Device 功能描述:1/3 Duty LCD Display Drivers with Key Input Function |
| LC75853NW-E | 功能描述:LCD 驅動器 RoHS:否 制造商:Maxim Integrated 數位數量:4.5 片段數量:30 最大時鐘頻率:19 KHz 工作電源電壓:3 V to 3.6 V 最大工作溫度:+ 85 C 最小工作溫度:- 20 C 封裝 / 箱體:PDIP-40 封裝:Tube |
| LC75853NWHS-E | 制造商:ON Semiconductor 功能描述:LCD DISPLAY DRIVER - Trays |
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