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參數(shù)資料
| 型號： | W541C250 |
| 廠商： | WINBOND ELECTRONICS CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 4-BIT MICROCONTROLLER |
| 中文描述： | 4-BIT, OTPROM, 4 MHz, MICROCONTROLLER, PQFP64 |
| 封裝： | QFP-64 |
| 文件頁數(shù)： | 6/10頁 |
| 文件大?。?/td> | 205K |
| 代理商： | W541C250 |
W541C250
- 6 -
5. PIN DESCRIPTION
SYMBOL
I/O
FUNCTION
XIN
I
Input pin for oscillator.
Connected to crystal or resistor to generate system clock by code option.
External 10~20pF capacitor uses to get accurate freq in crystal mode.
XOUT
O
Output pin for oscillator.
Connected to crystal or resistor to generate system clock by code option.
20PF capacitor is built in internal for crystal mode.
RA0
RA3
I/O
Input/Output port.
Input/output mode specified by port mode 1 register (PM1).
RB0
RB3
I/O
Input/Output port.
Input/output mode specified by port mode 2 register (PM2).
RC0
RC3
I
4-bit port for input only.
Each pin has an independent interrupt capability. And build-in schmitt
trigger
RD0
RD3
I
4-bit port for input only.
RE0
RE3
O Output port only.
This port provides high sink current to drive LEDs.
MFP
O
Output pin only.
This pin can output modulating or nonmodulating frequency, or Timer 1
clock output specified by mode register 1 (MR1).
INT
I
External interrupt pin with pull-high resistor.
RES
I
System reset pin with pull-high resistor.
SEG0
SEG23
O
LCD segment output pins.
Can also be used as DC output ports specified by code option.
COM0
COM3
O
LCD common signal output pins.
Static
COM0
COM1
COM2
COM3
Used
Not Used
1/2 Duty
Not Used
Not Used
Not Used
Not Used
1/3 Duty
Not Used
1/4 Duty
Used
Used
Used
Used
Used
Used
Used
Used
Used
The LCD alternating frequency can be selected by code option.
DH1, DH2
I
Connection terminals for voltage doubler (halver) capacitor.
V
DD1
, V
DD2
V
DD3
I
Positive (+) supply voltage terminal.
Refer to Functional Description.
V
DD
I
Positive power supply (+).
V
SS
I
Negative power supply (-).
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| W541C261 | 4BIT MICROCONTROLLER, 2K 】16 ROM, 128 】4 RAM 128 -DOT LCD |
| W541E261 | 4BIT MICROCONTROLLER, 2K 】16 ROM, 128 】4 RAM 128 -DOT LCD |
| W541C480 | 4BIT MICROCONTROLLER, 4K 】16 ROM, 256 】4 RAM 128 -DOT LCD |
| W541E | 4BIT MICROCONTROLLER, 4K 】16 ROM, 256 】4 RAM 128 -DOT LCD |
| W541E201 | 4 BIT FLASH EPROM MICROCONTROLLER |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| W541C261 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4BIT MICROCONTROLLER, 2K 】16 ROM, 128 】4 RAM 128 -DOT LCD |
| W541C480 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4BIT MICROCONTROLLER, 4K 】16 ROM, 256 】4 RAM 128 -DOT LCD |
| W541E | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4BIT MICROCONTROLLER, 4K 】16 ROM, 256 】4 RAM 128 -DOT LCD |
| W541E200 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT FLASH EPROM MICROCONTROLLER |
| W541E201 | 制造商:WINBOND 制造商全稱:Winbond 功能描述:4 BIT FLASH EPROM MICROCONTROLLER |
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