ATMEGA8U2-AU Atmel, ATMEGA8U2-AU Datasheet - Page 20

• 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

11. Datasheet Revision History
11.1
11.2
11.3
11.4
20
Rev. 7799D – 11/10
Rev. 7799C – 12/09
Rev. 7799B – 06/09
Rev. 7799A – 03/09
ATmega8U2/16U2/32U2
Please note that the referring page numbers in this section are referred to this document. The
referring revision in this section are referring to the document revision.
1.
2.
3.
4.
5.
6.
7.
8.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
1.
1.
Updated the footnote on page 2. Removed the VQFP from the footnote
Updated
Updated
Updated
Added UVCC limits in Electrical Characteristics
Updated
mode)
Updated
Removed Figure 27-26: USB Regulator Consumption with load 75
Updated
Initial revision.
Updated
Added description of
Updated
Updated
Updated
Updated
Updated
Updated
Updated
Added new
Section 20-4 ”Typical Bus powered application with 3.3V I/O” on page
Figure 20-6 on page
Table 21-2 on page
“Electrical Characteristics” on page
“Register Summary” on page
“Typical Characteristics” on page
“Features” on page
Figure 7-2 on page
Figure 20-3 on page 186
“Fuse Bits” on page
“DC Characteristics” on page
Table 26-3 on page
Table 26-4 on page
“Typical Characteristics” on page
“Errata” on page
“AVCC” on page
215. 10: Bulk Type, and 01: Isochronous Type
18.
1.
299.
188. By connecting UVCC to 3V power-supply.
247.
267, by removing Vrst.
268.
and
288. Added DIDR1 (adress: 0x7F)
4.
Figure 20-4 on page
264.
273.
273.
264. Added USB D+ Internal Pull-up (streaming
187.
Ω
vs. Vcc
187.
7799DS–AVR–11/10