技术特性

• High-performance, Low-power 32-bit Atmel?AVR?Microcontroller
  • Compact Single-cycle RISC Instruction Set Including DSP Instructions
  • Read-modify-write Instructions and Atomic Bit Manipulation
  • Performance— Up to 64DMIPS Running at 50MHz from Flash (1 Flash Wait State)— Up to 36DMIPS Running at 25MHz from Flash (0 Flash Wait State)
  • Memory Protection Unit (MPU)Secure Access Unit (SAU) providing User-defined Peripheral Protection
• picoPower?Technology for Ultra-low Power Consumption
• Multi-hierarchy Bus System
  • High-performance Data Transfers on Separate Buses for Increased Performance
  • 12 Peripheral DMA Channels Improve Speed for Peripheral Communication
• Internal High-speed Flash
  • 64Kbytes, 32Kbytes, and 16Kbytes Versions
  • Single-cycle Access up to 25MHz
  • FlashVault Technology Allows Pre-programmed Secure Library Support for EndUser Applications
  • Prefetch Buffer Optimizing Instruction Execution at Maximum Speed
  • 100,000 Write Cycles, 15-year Data Retention Capability
  • Flash Security Locks and User-defined Configuration Area
• Internal High-speed SRAM, Single-cycle Access at Full Speed
  • 16Kbytes (64Kbytes and 32Kbytes Flash), or 8Kbytes (16Kbytes Flash)
• Interrupt Controller (INTC)
  • Autovectored Low-latency Interrupt Service with Programmable Priority
• External Interrupt Controller (EIC)
• Peripheral Event System for Direct Peripheral to Peripheral Communication
• System Functions
  • Power and Clock Manager
  • SleepWalking Power Saving Control
  • Internal System RC Oscillator (RCSYS)
  • 32KHz Oscillator
  • Multipurpose Oscillator and Digital Frequency Locked Loop (DFLL)
• Windowed Watchdog Timer (WDT)
• Asynchronous Timer (AST) with Real-time Clock Capability
  • Counter or Calendar Mode Supported
• Frequency Meter (FREQM) for Accurate Measuring of Clock Frequency
• Six 16-bit Timer/Counter (TC) Channels
  • External Clock Inputs, PWM, Capture, and Various Counting Capabilities
• 36 PWM Channels (PWMA)
  • 8-bit PWM with a Source Clock up to 150MHz
• Four Universal Synchronous/Asynchronous Receiver/Transmitters (USART)
  • Independent Baudrate Generator, Support for SPI
  • Support for Hardware Handshaking
• One Master/Slave Serial Peripheral Interfaces (SPI) with Chip Select Signals
  • Up to 15 SPI Slaves can be Addressed
• Two Master and Two Slave Two-wire Interface (TWI), 400kbit/s I2C-compatible
• One 8-channel Analog-to-digital Converter (ADC) with up to 12 Bits Resolution
  • Internal Temperature Sensor
• Eight Analog Comparators (AC) with Optional Window Detection
• Capacitive Touch (CAT) Module
  • Hardware-assisted Atmel® AVR® QTouch® and Atmel® AVR® QMatrix Touch Acquisition
  • Supports QTouch and QMatrix Capture from Capacitive Touch Sensors
• QTouch Library Support
  • Capacitive Touch Buttons, Sliders, and Wheels
  • QTouch and QMatrix Acquisition
• On-chip Non-intrusive Debug System
  • Nexus Class 2+, Runtime Control, Non-intrusive Data and Program Trace
  • aWire Single-pin Programming Trace and Debug Interface Muxed with Reset Pin
  • NanoTrace Provides Trace Capabilities through JTAG or aWire Interface
• 48-pin TQFP/QFN/TLLGA (36 GPIO Pins)
• Five High-drive I/O Pins
• Single 1.62-3.6 V Power Supply

TQFP48 / QFN48 管脚定义图

TLLGA48 管脚定义图