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參數(shù)資料
| 型號： | MQ80C52TXXX-12SB |
| 廠商： | TEMIC SEMICONDUCTORS |
| 元件分類： | 微控制器/微處理器 |
| 英文描述： | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44 |
| 文件頁數(shù)： | 35/46頁 |
| 文件大?。?/td> | 4720K |
| 代理商： | MQ80C52TXXX-12SB |
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4
ATtiny20 [DATASHEET]
8235E–AVR–03/2013
1.5
Pin Description
1.5.1
VCC
Supply voltage.
1.5.2
GND
Ground.
1.5.3
RESET
Reset input. A low level on this pin for longer than the minimum pulse length will generate a reset, even if the clock is not
running and provided the reset pin has not been disabled. The minimum pulse length is given in Table 20-4 on page 170.
Shorter pulses are not guaranteed to generate a reset.
The reset pin can also be used as a (weak) I/O pin.
1.5.4
Port A (PA7:PA0)
Port A is a 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port A output buffers have
symmetrical drive characteristics with both high sink and source capability. As inputs, Port A pins that are externally
pulled low will source current if the pull-up resistors are activated. The Port A pins are tri-stated when a reset condition
becomes active, even if the clock is not running.
Port A has alternate functions as analog inputs for the ADC, analog comparator and pin change interrupt as described in
1.5.5
Port B (PB3:PB0)
Port B is a 4-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The Port B output buffers have
symmetrical drive characteristics with both high sink and source capability except PB3 which has the RESET capability.
To use pin PB3 as an I/O pin, instead of RESET pin, program (‘0’) RSTDISBL fuse. As inputs, Port B pins that are
externally pulled low will source current if the pull-up resistors are activated. The Port B pins are tri-stated when a reset
condition becomes active, even if the clock is not running.
The port also serves the functions of various special features of the ATtiny20, as listed on page 37.
相關PDF資料 |
PDF描述 |
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| MC80C52CXXX-16 | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 |
| MR80C52EXXX-25/883 | 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQCC44 |
| MQ83C154XXX-12/883R | 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44 |
| MC80C52CXXX-16P883 | 8-BIT, MROM, 16 MHz, MICROCONTROLLER, CDIP40 |
| MC80C32-12SBD | 8-BIT, 12 MHz, MICROCONTROLLER, CDIP40 |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| MQ82370-20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MQ8238020 | 制造商:Intel 功能描述:CONTROLLER: OTHER |
| MQ82380-20 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| MQ82380-20/R | 制造商:Rochester Electronics LLC 功能描述: |
| MQ82592 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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