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參數資料
型號: W741C250
廠商: WINBOND ELECTRONICS CORP
元件分類: 微控制器/微處理器
英文描述: 4-BIT Microcontroller(多次可編程4位的微控制器)
中文描述: 4-BIT, MROM, 4.19 MHz, MICROCONTROLLER, PQFP64
封裝: 14 X 20 MM, QFP-64
文件頁數: 22/88頁
文件大小: 496K
代理商: W741C250
W741C250
- 22 -
( MFP output table, continued)
0
0
0
0
0
0
4096 Hz
0
0
0
0
0
1
4096 Hz * 128 Hz
0
0
0
0
1
0
4096 Hz * 64 Hz
1 1
0
0
0
1
0
0
4096 Hz * 8 Hz
0
0
1
0
0
0
4096 Hz * 4 Hz
0
1
0
0
0
0
4096 Hz * 2 Hz
1
0
0
0
0
0
4096 Hz * 1 Hz
LCD Controller/Driver
The W741C250 can directly drive an LCD with 24 segment output pins and 4 common output pins for
a total of 24
×
4 dots. Option codes can be used to select one of five options for the LCD driving
mode: static, 1/2 bias 1/2 duty, 1/2 bias 1/3 duty, 1/3 bias 1/3 duty, or 1/3 bias 1/4 duty (see Figure
12). The alternating frequency of the LCD can be set as Fw/64, Fw/128, Fw/256, or Fw/512. In
addition, option codes can also be used to set up four of the LCD driver output pins (segment 0 to
segment 23) as a DC output port. The structure of the LCD alternating frequency (F
LCD
) is shown in
the figure below.
Timing
Generator
Q1
Q2
Q3
Q4
Q5
Q6
Q14
...
Fosc
Fosc/32
High frequency clock
Divider 0
Q1
Q2
Q3
Q4
Q5
Q6
Q7
Q8
Q9
Fw
Selector
Fw/512
Fw/256
Fw/128
Fw/64
Low frequency clock
F
LCD
Figure 11. LCD Alternating Frequency (F
LCD
) Circuit Diagram
相關PDF資料
PDF描述
W741C260 4-BIT Microcontroller(多次可編程4位的微控制器)
W741E20X 4-BIT FLASH MICROCONTROLLER
W741E260 4-BIT FLASH MICROCONTROLLER
W741L260 4-BIT MICROCONTROLLER
W742C810 4-BIT MICROCONTROLLER
相關代理商/技術參數
參數描述
W741C260 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT MICROCONTROLLER
W741E200 制造商:未知廠家 制造商全稱:未知廠家 功能描述:4-Bit Microcontroller
W741E201 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER
W741E202 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER
W741E203 制造商:WINBOND 制造商全稱:Winbond 功能描述:4-BIT FLASH MICROCONTROLLER