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Features

? High Performance, Low Power AVR? 8-Bit Microcontroller

? Advanced RISC Architecture

– 135 Powerful Instructions – Most Single Clock Cycle Execution

– 32 x 8 General Purpose Working Registers

– Fully Static Operation

– Up to 16 MIPS Throughput at 16MHz

– On-Chip 2-cycle Multiplier

? Non-volatile Program and Data Memories

– 16/32KB of In-System Self-Programmable Flash

– 1.25/2.5KB Internal SRAM

– 512Bytes/1KB Internal EEPROM

– Write/Erase Cycles: 10,000 Flash/100,000 EEPROM

– Data retention: 20 years at 85?C/ 100 years at 25?C(1)

– Optional Boot Code Section with Independent Lock Bits

In-System Programming by On-chip Boot Program

True Read-While-Write Operation

Parts using external XTAL clock are pre-programed with a default USB bootloader

– Programming Lock for Software Security

? JTAG (IEEE? std. 1149.1 compliant) Interface

– Boundary-scan Capabilities According to the JTAG Standard

– Extensive On-chip Debug Support

– Programming of Flash, EEPROM, Fuses, and Lock Bits through the JTAG Interface

? USB 2.0 Full-speed/Low Speed Device Module with Interrupt on Transfer Completion

– Complies fully with Universal Serial Bus Specification Rev 2.0

– Supports data transfer rates up to 12Mbit/s and 1.5Mbit/s

– Endpoint 0 for Control Transfers: up to 64-bytes

– Six Programmable Endpoints with IN or Out Directions and with Bulk, Interrupt or

Isochronous Transfers

– Configurable Endpoints size up to 256 bytes in double bank mode

– Fully independent 832 bytes USB DPRAM for endpoint memory allocation

– Suspend/Resume Interrupts

– CPU Reset possible on USB Bus Reset detection

– 48MHz from PLL for Full-speed Bus Operation

– USB Bus Connection/Disconnection on Microcontroller Request

– Crystal-less operation for Low Speed mode

? Peripheral Features

– On-chip PLL for USB and High Speed Timer: 32 up to 96MHz operation

– One 8-bit Timer/Counter with Separate Prescaler and Compare Mode

– Two 16-bit Timer/Counter with Separate Prescaler, Compare- and Capture Mode

– One 10-bit High-Speed Timer/Counter with PLL (64MHz) and Compare Mode

– Four 8-bit PWM Channels

– Four PWM Channels with Programmable Resolution from 2 to 16 Bits

– Six PWM Channels for High Speed Operation, with Programmable Resolution from 2 to 11 Bits

– Output Compare Modulator

– 12-channels, 10-bit ADC (features Differential Channels with Programmable Gain)

– Programmable Serial USART with Hardware Flow Control

– Master/Slave SPI Serial Interface

– Byte Oriented 2-wire Serial Interface

– Programmable Watchdog Timer with Separate On-chip Oscillator

– On-chip Analog Comparator

– Interrupt and Wake-up on Pin Change

– On-chip Temperature Sensor

? Special Microcontroller Features

– Power-on Reset and Programmable Brown-out Detection

– Internal 8MHz Calibrated Oscillator

– Internal clock prescaler and On-the-fly Clock Switching (Int RC / Ext Osc)

– External and Internal Interrupt Sources

– Six Sleep Modes: Idle, ADC Noise Reduction, Power-save, Power-down, Standby, and Extended Standby

? I/O and Packages

– All I/O combine CMOS outputs and LVTTL inputs

– 26 Programmable I/O Lines

– 44-lead TQFP Package, 10x10mm

– 44-lead QFN Package, 7x7mm

? Operating Voltages

– 2.7 - 5.5V

? Operating temperature

– Industrial (-40°C to +85°C)

? Maximum Frequency

– 8MHz at 2.7V - Industrial range

– 16MHz at 4.5V - Industrial range

Note: 1. See “Data Retention” on page 8 for details