Motor de Búsqueda de Datasheet de Componentes Electrónicos
  Spanish  ▼

Delete All
ON OFF
ALLDATASHEET.ES

X  

Preview PDF Download HTML

ATMEGA8U2 Datasheet(PDF) 5 Page - ATMEL Corporation

No. de pieza ATMEGA8U2
Descripción Electrónicos  8-bit Microcontroller with 8/16/32K Bytes of ISP Flash and USB Controller
Download  21 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Fabricante Electrónico  ATMEL [ATMEL Corporation]
Página de inicio  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA8U2 Datasheet(HTML) 5 Page - ATMEL Corporation

  ATMEGA8U2 Datasheet HTML 1Page - ATMEL Corporation ATMEGA8U2 Datasheet HTML 2Page - ATMEL Corporation ATMEGA8U2 Datasheet HTML 3Page - ATMEL Corporation ATMEGA8U2 Datasheet HTML 4Page - ATMEL Corporation ATMEGA8U2 Datasheet HTML 5Page - ATMEL Corporation ATMEGA8U2 Datasheet HTML 6Page - ATMEL Corporation ATMEGA8U2 Datasheet HTML 7Page - ATMEL Corporation ATMEGA8U2 Datasheet HTML 8Page - ATMEL Corporation ATMEGA8U2 Datasheet HTML 9Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 5 / 21 page
background image
5
7799CS–AVR–12/09
ATmega8U2/16U2/32U2
2.2.5
Port C (PC7..PC0)
Port C is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port C output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port C pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port C pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Port C also serves the functions of various special features of the ATmega8U2/16U2/32U2 as
listed on page 77.
2.2.6
Port D (PD7..PD0)
Port D serves as analog inputs to the analog comparator.
Port D also serves as an 8-bit bi-directional I/O port, if the analog comparator is not used (con-
cerns PD2/PD1 pins). Port pins can provide internal pull-up resistors (selected for each bit). The
Port D output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port D pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port D pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
2.2.7
D-
USB Full Speed Negative Data Upstream Port
2.2.8
D+
USB Full Speed Positive Data Upstream Port
2.2.9
UGND
USB Ground.
2.2.10
UVCC
USB Pads Internal Regulator Input supply voltage.
2.2.11
UCAP
USB Pads Internal Regulator Output supply voltage. Should be connected to an external capac-
itor (1µF).
2.2.12
RESET/PC1/dW
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. The minimum pulse length is given in “System Control and
Reset” on page 47. Shorter pulses are not guaranteed to generate a reset. This pin alternatively
serves as debugWire channel or as generic I/O. The configuration depends on the fuses RST-
DISBL and DWEN.
2.2.13
XTAL1
Input to the inverting Oscillator amplifier and input to the internal clock operating circuit.
2.2.14
XTAL2/PC0
Output from the inverting Oscillator amplifier if enabled by Fuse. Also serves as a generic I/O.


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21 


Datasheet Descarga

Go To PDF Page


Enlace URL




Política de Privacidad
ALLDATASHEET.ES
¿ALLDATASHEET es útil para Ud.?  [ DONATE ] 

Todo acerca de Alldatasheet   |   Publicidad   |   Contáctenos   |   Política de Privacidad   |   Intercambio de Enlaces   |   Lista de Fabricantes
All Rights Reserved©Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  |   English : Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp
Russian : Alldatasheetru.com  |   Korean : Alldatasheet.co.kr  |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com
Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl  |   Vietnamese : Alldatasheet.vn