AT90USB647-MU Atmel, AT90USB647-MU Datasheet - Page 422

• Manufacturer Part Number: AT90USB647-MU
• Description: MCU, 8BIT, 64K FLASH, USB, 64QFN
• Manufacturer: Atmel

Specifications of AT90USB647-MU

• Controller Family/series: AT90
• No. Of I/o's: 48
• Eeprom Memory Size: 2KB
• Ram Memory Size: 4KB
• Cpu Speed: 16MHz
• No. Of: RoHS Compliant
• Core Size: 8bit
• Program Memory Size: 64KB
• Oscillator Type: External, Internal
• Package: 64QFN EP
• Device Core: AVR
• Family Name: AT90
• Maximum Speed: 20 MHz
• Ram Size: 4 KB
• Operating Supply Voltage: 3.3|5 V
• Data Bus Width: 8 Bit
• Program Memory Type: Flash
• Number Of Programmable I/os: 48
• Interface Type: SPI/TWI/USART/USB
• On-chip Adc: 8-chx10-bit
• Operating Temperature: -40 to 85 °C
• Number Of Timers: 4
• Lead Free Status / Rohs Status: Details

31.12 BOD Levels
422
AT90USB64/128
2.54
2.52
2.48
2.46
2.44
2.42
3.4
3.2
2.8
2.6
2.5
3
-40
3
-30
Figure 31-19. USB Regulator Output Voltage vs. Input Voltage, Load=75 Ohms
Note:
Figure 31-20. BOD Voltage (2.4V level) vs. Temperature
Figure 31-21. BOD Voltage (3.4V level) vs. Temperature
-20
3.5
-10
The 75 Ohms load is equivalent to the maximum average consumption of the USB peripheral in
operation (full bus load)
0
4
10
Input Volta ge (V)
Te mpe ra ture (C
20
30
4.5
40
50
5
60
70
80
5.5
Rising Vcc
Falling Vcc
7593K–AVR–11/09
85
25
-40