ATMEGA8U2-MU Atmel, ATMEGA8U2-MU Datasheet - Page 266

• Manufacturer Part Number: ATMEGA8U2-MU
• Description: MCU AVR 8K FLASH USB 32-VQFN
• Manufacturer: Atmel
• Series: AVR® ATmegar

Specifications of ATMEGA8U2-MU

• 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-VQFN Exposed Pad, 32-HVQFN, 32-SQFN, 32-DHVQFN
• Processor Series: ATMEGA8x
• Core: AVR8
• Data Bus Width: 8 bit
• Data Ram Size: 1 KB
• Interface Type: SPI, UART
• Maximum Clock Frequency: 16 MHz
• Number Of Programmable I/os: 22
• Number Of Timers: 2
• 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
• Package: 32QFN EP
• Device Core: AVR
• Family Name: ATmega
• Maximum Speed: 16 MHz
• Operating Supply Voltage: 3.3|5 V
• For Use With: ATSTK600 - DEV KIT FOR AVR/AVR32ATSTK500 - PROGRAMMER AVR STARTER KIT
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Data Converters: -
• Lead Free Status / Rohs Status: Details

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