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參數(shù)資料
| 型號： | AT43USB351M-AC |
| 廠商： | ATMEL CORP |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | Full-speed/Low-speed USB Microcontroller with ADC and PWM |
| 中文描述： | 8-BIT, MROM, 24 MHz, RISC MICROCONTROLLER, PQFP48 |
| 封裝： | 7 X 7 MM, 1.40 MM HEIGHT, 0.50 MM PITCH, PLASTIC, MS-026BBC, LQFP-48 |
| 文件頁數(shù)： | 70/101頁 |
| 文件大?。?/td> | 624K |
| 代理商： | AT43USB351M-AC |
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70
AT43USB351M
3302E–USB–7/04
PortD as General
Digital I/O
PDn, General I/O Pin:
The DDDn bit in the DDRD register selects the direction of this pin. If
DDDn is set (one), PDn is con-figured as an output pin. If DDDn is cleared (zero), PDn is con-
figured as an input pin. If PORTDn is set (one) when the pin is configured as an input pin, the
MOS pull-up resistor is activated. To switch the pull-up resistor off, the PORTDn has to be
cleared (zero) or the pin has to configured as an output pin. The Port D pins are tri-stated
when a reset condition becomes active, even if the clock is not active.
Note:
n: 7, 6...0, pin number.
Table 29.
DDDn Bits on Port D Pins
DDDn
PORTDn
I/O
Comment
0
0
Input
Tri-state (Hi-Z)
0
1
Input
PDn will source current if ext. pulled low.
1
0
Output
Push-Pull Zero Output
1
1
Output
Push-Pull One Output
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相關(guān)代理商/技術(shù)參數(shù) |
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| AT43USB353M | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
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| AT43USB353M_04 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| AT43USB353M-AC | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Low Cost Full-speed USB Microcontroller with Embedded Hub, ADC and PWM |
| AT43USB355 | 制造商:ATMEL 制造商全稱:ATMEL Corporation 功能描述:Missed Watchdog Timer Reset |
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