參數(shù)資料
型號(hào)： MQ83C154DTXXX-25/883R
廠商： ATMEL CORP
元件分類(lèi)： 微控制器/微處理器
英文描述： 8-BIT, MROM, 25 MHz, MICROCONTROLLER, CQFP44
封裝： CERAMIC, QFP-44
文件頁(yè)數(shù)： 35/46頁(yè)
文件大?。?/td> 4720K
代理商： MQ83C154DTXXX-25/883R
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(guān)PDF資料
PDF描述
MQ80C52TXXX-12SB 8-BIT, MROM, 12 MHz, MICROCONTROLLER, CQFP44
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
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MQ83C154-L16 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MQ83C154T-12 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MQ83C154T-16 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MQ83C154T-20 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
MQ83C154T-25 制造商:TEMIC 制造商全稱(chēng):TEMIC Semiconductors 功能描述:CMOS 0 to 36 MHz Single Chip 8-bit Microcontroller
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