Electronic Components Datasheet Search
  English  ▼

Delete All
ON OFF
ALLDATASHEET.COM

X  

Preview PDF Download HTML

ATMEGA1281-16AU Datasheet(PDF) 8 Page - ATMEL Corporation

Part No. ATMEGA1281-16AU
Description  8-bit Microcontroller with 64K/128K/256K Bytes In-System Programmable Flash
Download  37 Pages
Scroll/Zoom Zoom In 100% Zoom Out
Maker  ATMEL [ATMEL Corporation]
Homepage  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

ATMEGA1281-16AU Datasheet(HTML) 8 Page - ATMEL Corporation

Back Button ATMEGA1281-16AU Datasheet HTML 4Page - ATMEL Corporation ATMEGA1281-16AU Datasheet HTML 5Page - ATMEL Corporation ATMEGA1281-16AU Datasheet HTML 6Page - ATMEL Corporation ATMEGA1281-16AU Datasheet HTML 7Page - ATMEL Corporation ATMEGA1281-16AU Datasheet HTML 8Page - ATMEL Corporation ATMEGA1281-16AU Datasheet HTML 9Page - ATMEL Corporation ATMEGA1281-16AU Datasheet HTML 10Page - ATMEL Corporation ATMEGA1281-16AU Datasheet HTML 11Page - ATMEL Corporation ATMEGA1281-16AU Datasheet HTML 12Page - ATMEL Corporation Next Button
Zoom Inzoom in Zoom Outzoom out
 8 / 37 page
background image
8
2549LS–AVR–08/07
ATmega640/1280/1281/2560/2561
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 special features of the ATmega640/1280/1281/2560/2561 as
listed on page 82.
2.3.6
Port D (PD7..PD0)
Port D is an 8-bit bi-directional I/O port with 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.
Po rt
D
al so
ser v e s
t h e
f u nct i o n s
o f
va ri ou s
sp eci a l
f e at u r e s
of
t h e
ATmega640/1280/1281/2560/2561 as listed on page 83.
2.3.7
Port E (PE7..PE0)
Port E is an 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port E output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port E pins that are externally pulled low will source current if the pull-up
resistors are activated. The Port E pins are tri-stated when a reset condition becomes active,
even if the clock is not running.
Por t
E
also
se rve s
the
fun c tion s
of
va riou s
sp ecial
fe atu r e s
of
th e
ATmega640/1280/1281/2560/2561 as listed on page 86.
2.3.8
Port F (PF7..PF0)
Port F serves as analog inputs to the A/D Converter.
Port F also serves as an 8-bit bi-directional I/O port, if the A/D Converter is not used. Port pins
can provide internal pull-up resistors (selected for each bit). The Port F output buffers have sym-
metrical drive characteristics with both high sink and source capability. As inputs, Port F pins
that are externally pulled low will source current if the pull-up resistors are activated. The Port F
pins are tri-stated when a reset condition becomes active, even if the clock is not running. If the
JTAG interface is enabled, the pull-up resistors on pins PF7(TDI), PF5(TMS), and PF4(TCK) will
be activated even if a reset occurs.
Port F also serves the functions of the JTAG interface.
2.3.9
Port G (PG5..PG0)
Port G is a 6-bit I/O port with internal pull-up resistors (selected for each bit). The Port G output
buffers have symmetrical drive characteristics with both high sink and source capability. As
inputs, Port G pins that are externally pulled low will source current if the pull-up resistors are
activated. The Port G pins are tri-stated when a reset condition becomes active, even if the clock
is not running.
Por t
G
also
ser v es
the
fun c tion s
o f
various
special
f e atures
of
the
ATmega640/1280/1281/2560/2561 as listed on page 90.
2.3.10
Port H (PH7..PH0)
Port H is a 8-bit bi-directional I/O port with internal pull-up resistors (selected for each bit). The
Port H output buffers have symmetrical drive characteristics with both high sink and source
capability. As inputs, Port H pins that are externally pulled low will source current if the pull-up


Html Pages

1  2  3  4  5  6  7  8  9  10  11  12  13  14  15  16  17  18  19  20  21  22  23  24  25  26  27  28  29  30  31  32  33  34  35  36  37 


Datasheet Download

Go To PDF Page


Link URL




Privacy Policy
ALLDATASHEET.COM
Does ALLDATASHEET help your business so far?  [ DONATE ]  

About Alldatasheet   |   Advertisement   |   Datasheet Upload   |   Contact us   |   Privacy Policy   |   Alldatasheet API   |   Link Exchange   |   Manufacturer List
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