ATMEGA8U2-AU Atmel, ATMEGA8U2-AU Datasheet - Page 266
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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26.3
26.4
26.4.1
Table 26-1.
26.4.2
7799D–AVR–11/10
Factory
Calibration
User
Calibration
5. All DC Characteristics contained in this datasheet are based on simulation and characterization of other AVR microcon-
6. Values with “PRR1 – Power Reduction Register 1” disabled (0x00).
7. As specified in the USB Electrical chapter, the D+/D- pads can withstand voltages down to -1V applied through a 39Ω resis-
8. All IOs Except XTAL1 and Reset pins
Speed Grades
Clock Characteristics
Calibrated Internal RC Oscillator Accuracy
External Clock Drive Waveforms
trollers manufactured in the same process technology. These values are preliminary values representing design targets, and
will be updated after characterization of actual silicon
tor (in series with the external 39Ω resistor).
Calibration Accuracy of Internal RC Oscillator
Maximum frequency is depending on V
V
Figure 26-1. Maximum Frequency vs. V
Figure 26-2. External Clock Drive Waveforms
CC
7.3 - 8.1 MHz
curve is linear between 2.7V < V
Frequency
8.0 MHz
16 MHz
8 MHz
V
IL1
V
IH1
2.7V
2.7V - 5.5V
V
3V
CC
Safe Operating Area
CC
CC.
< 4.5V.
CC
As shown in
, ATmega8U2/16U2/32U2
4.5V
ATmega8U2/16U2/32U2
Temperature
-40°C - 85°C
Figure
25°C
5.5V
26-1, the Maximum Frequency vs.
Calibration Accuracy
±10%
±1%
266
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