ATMEGA8U2-AU Atmel, ATMEGA8U2-AU Datasheet - Page 81
ATMEGA8U2-AU
Manufacturer Part Number
ATMEGA8U2-AU
Description
MCU AVR 8K FLASH 16MHZ 32TQFP
Manufacturer
Atmel
Series
AVR® ATmegar
Specifications of ATMEGA8U2-AU
Core Processor
AVR
Core Size
8-Bit
Speed
16MHz
Connectivity
SPI, UART/USART, USB
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
22
Program Memory Size
8KB (4K x 16)
Program Memory Type
FLASH
Eeprom Size
512 x 8
Ram Size
512 x 8
Voltage - Supply (vcc/vdd)
2.7 V ~ 5.5 V
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
32-TQFP, 32-VQFP
Processor Series
ATmega
Core
AVR
Data Bus Width
8 bit
Data Ram Size
512 B
Interface Type
SPI, USART, USB
Maximum Clock Frequency
16 MHz
Number Of Programmable I/os
22
Number Of Timers
2
Operating Supply Voltage
5 V
Maximum Operating Temperature
+ 85 C
Mounting Style
SMD/SMT
3rd Party Development Tools
EWAVR, EWAVR-BL
Development Tools By Supplier
ATAVRDRAGON, ATSTK500, ATSTK600, ATAVRISP2, ATAVRONEKIT, AT90USBKEY, ATEVK525
Minimum Operating Temperature
- 40 C
Operating Temperature Range
- 40 C to + 85 C
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Data Converters
-
Lead Free Status / Rohs Status
Details
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
ATMEGA8U2-AU
Manufacturer:
Atmel
Quantity:
2 772
Part Number:
ATMEGA8U2-AU
Manufacturer:
ATMEL/爱特梅尔
Quantity:
20 000
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7799D–AVR–11/10
Table 12-10. Overriding Signals for Alternate Functions PD7..PD4
Table 12-11. Overriding Signals for Alternate Functions in PD3..PD0
Note:
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
Signal Name
PUOE
PUOV
DDOE
DDOV
PVOE
PVOV
DIEOE
DIEOV
DI
AIO
1. When enabled, the 2-wire Serial Interface enables Slew-Rate controls on the output pins PD0
and PD1. This is not shown in this table. In addition, spike filters are connected between the
AIO outputs shown in the port figure.
PD3/INT3/TXD1
TXEN1
0
TXEN1
1
TXEN1
TXD1
INT3 ENABLE
1
INT3 INPUT
–
PD7/T0/INT7/
HBW/CTS
CTS
PORTD7 •
PUD
CTS
0
0
0
INT7/CTS
ENABLE
1
T0 INPUT
INT7 INPUT
CTS INPUT
–
PD6/INT6/
RTS
RTS
0
RTS
1
RTS
OUTPUT
ENABLE
RTS
OUTPUT
INT6
ENABLE
1
INT6 INPUT
–
PD2/INT2/RXD1/
AIN1
RXEN1
PORTD2 • PUD
RXEN1
0
0
0
INT2 ENABLE
AIN1 ENABLE
AIN1 ENABLE
INT2 INPUT/RXD1
AIN1 INPUT
PD5/XCK/PCINT12
0
0
0
0
XCK OUTPUT ENABLE
XCK1 OUTPUT
PCINT12 ENABLE
1
XCK INPUT
PCINT12 INPUT
–
ATmega8U2/16U2/32U2
PD1/INT1/AIN0
0
0
0
0
0
0
INT1 ENABLE
AIN0 ENABLE
AIN0 ENABLE
INT1 INPUT
AIN0 INPUT
(1)
PD0/INT0/OC0B
0
0
0
0
OC0B ENABLE
OC0B
INT0 ENABLE
1
INT0 INPUT
–
PD4/INT5
0
0
0
0
0
0
INT5
ENABLE
1
INT5 INPUT
–
81
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