AT90USB646-MUR Atmel, AT90USB646-MUR Datasheet - Page 458

• Manufacturer Part Number: AT90USB646-MUR
• Description: MCU AVR 64K FLASH 16MHZ 64QFN
• Manufacturer: Atmel
• Series: AVR® 90USBr

Specifications of AT90USB646-MUR

• Core Processor: AVR
• Core Size: 8-Bit
• Speed: 16MHz
• Connectivity: EBI/EMI, I²C, SPI, UART/USART, USB, USB OTG
• Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
• Number Of I /o: 48
• Program Memory Size: 64KB (64K x 8)
• Program Memory Type: FLASH
• Eeprom Size: 2K x 8
• Ram Size: 4K x 8
• Voltage - Supply (vcc/vdd): 2.7 V ~ 5.5 V
• Data Converters: A/D 8x10b
• Oscillator Type: Internal
• Operating Temperature: -40°C ~ 85°C
• Package / Case: 64-VQFN Exposed Pad, 64-HVQFN, 64-SQFN, 64-DHVQFN
• Data Bus Width: 8 bit
• Data Ram Size: 4 KB
• Interface Type: SPI, UART
• Maximum Clock Frequency: 20 MHz
• Number Of Programmable I/os: 48
• Number Of Timers: 4
• Maximum Operating Temperature: + 85 C
• Mounting Style: SMD/SMT
• Minimum Operating Temperature: - 40 C
• On-chip Adc: 10 bit, 8 Channel
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

28 Boot Loader Support – Read-While-Write Self-Programming ......... 349
29 Memory Programming ......................................................................... 366
30 Electrical Characteristics for AT90USB64/128 .................................. 398
31
458
AT90USB64/128 Typical Characteristics .......................................... 412
27.6 Boundary-scan Chain ........................................................................................342
27.7 AT90USB64/128 Boundary-scan Order ............................................................345
27.8 Boundary-scan Description Language Files ......................................................348
28.1 Boot Loader Features ........................................................................................349
28.2 Application and Boot Loader Flash Sections .....................................................349
28.3 Read-While-Write and No Read-While-Write Flash Sections ............................349
28.4 Boot Loader Lock Bits .......................................................................................352
28.5 Entering the Boot Loader Program ....................................................................353
28.6 Addressing the Flash During Self-Programming ...............................................357
28.7 Self-Programming the Flash ..............................................................................358
29.1 Program And Data Memory Lock Bits ...............................................................366
29.2 Fuse Bits ............................................................................................................367
29.3 Signature Bytes .................................................................................................369
29.4 Calibration Byte .................................................................................................369
29.5 Parallel Programming Parameters, Pin Mapping, and Commands ...................369
29.6 Parallel Programming ........................................................................................372
29.7 Serial Downloading ............................................................................................380
29.8 Serial Programming Pin Mapping ......................................................................381
29.9 Programming via the JTAG Interface ................................................................385
30.1 Absolute Maximum Ratings* .............................................................................398
30.2 DC Characteristics .............................................................................................398
30.3 External Clock Drive Waveforms .......................................................................400
30.4 External Clock Drive ..........................................................................................400
30.5 Maximum speed vs. V
30.6 2-wire Serial Interface Characteristics ...............................................................401
30.7 SPI Timing Characteristics ................................................................................403
30.8 Hardware Boot EntranceTiming Characteristics ................................................404
30.9 ADC Characteristics ..........................................................................................405
30.10 External Data Memory Timing .........................................................................407
31.1 Input Voltage Levels ..........................................................................................413
31.2 Output Voltage Levels .......................................................................................414
AT90USB64/128
CC ...........................................................................................................................400
7593K–AVR–11/09