AT90USB647 Atmel Corporation, AT90USB647 Datasheet - Page 453

• Manufacturer Part Number: AT90USB647
• Manufacturer: Atmel Corporation

Specifications of AT90USB647

• Flash (kbytes): 64 Kbytes
• Pin Count: 64
• Max. Operating Frequency: 16 MHz
• Cpu: 8-bit AVR
• # Of Touch Channels: 16
• Hardware Qtouch Acquisition: No
• Max I/o Pins: 48
• Ext Interrupts: 16
• Usb Transceiver: 1
• Usb Speed: Full Speed
• Usb Interface: Device + OTG
• Spi: 2
• Twi (i2c): 1
• Uart: 1
• Graphic Lcd: No
• Video Decoder: No
• Camera Interface: No
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 15
• Analog Comparators: 1
• Resistive Touch Screen: No
• Temp. Sensor: No
• Crypto Engine: No
• Sram (kbytes): 4
• Eeprom (bytes): 2048
• Self Program Memory: YES
• Dram Memory: No
• Nand Interface: No
• Picopower: No
• Temp. Range (deg C): -40 to 85
• I/o Supply Class: 2.7 to 5.5
• Operating Voltage (vcc): 2.7 to 5.5
• Fpu: No
• Mpu / Mmu: no / no
• Timers: 4
• Output Compare Channels: 10
• Input Capture Channels: 1
• Pwm Channels: 9
• 32khz Rtc: Yes
• Calibrated Rc Oscillator: Yes

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9
10 I/O-Ports .................................................................................................. 72
11 External Interrupts ................................................................................. 94
12 Timer/Counter0, Timer/Counter1, and Timer/Counter3 Prescalers ... 98
13 8-bit Timer/Counter0 with PWM .......................................................... 100
7593K–AVR–11/09
System Control and Reset .................................................................... 57
Interrupts ................................................................................................ 68
7.1 Idle Mode ...............................................................................................................52
7.2 ADC Noise Reduction Mode ..................................................................................52
7.3 Power-down Mode .................................................................................................52
7.4 Power-save Mode ..................................................................................................52
7.5 Standby Mode .......................................................................................................53
7.6 Extended Standby Mode .......................................................................................53
7.7 Power Reduction Register .....................................................................................54
7.8 Minimizing Power Consumption ............................................................................55
8.1 Resetting the AVR .................................................................................................57
8.2 Reset Sources .......................................................................................................57
8.3 Power-on Reset .....................................................................................................58
8.4 External Reset .......................................................................................................59
8.5 Brown-out Detection ..............................................................................................60
8.6 Watchdog Reset ....................................................................................................61
8.7 Internal Voltage Reference ....................................................................................62
8.8 Watchdog Timer ....................................................................................................63
9.1 Interrupt Vectors in AT90USB64/128 ....................................................................68
10.1 Introduction ..........................................................................................................72
10.2 Ports as General Digital I/O .................................................................................73
10.3 Alternate Port Functions ......................................................................................77
10.4 Register Description for I/O-Ports ........................................................................90
12.1 Internal Clock Source ..........................................................................................98
12.2 Prescaler Reset ...................................................................................................98
12.3 External Clock Source .........................................................................................98
12.4 General Timer/Counter Control Register – GTCCR ............................................99
13.1 Overview ............................................................................................................100
13.2 Timer/Counter Clock Sources ...........................................................................101
13.3 Counter Unit ......................................................................................................101
AT90USB64/128
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