Datasheet

Features
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
256Kbytes, 128Kbytes, and 64Kbytes Versions
Single-cycle Access up to 25MHz
FlashVault Technology Allows Pre-programmed Secure Library Support for End
User 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
32Kbytes (256Kbytes and 128Kbytes Flash) and 16Kbytes (64Kbytes 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)
32 KHz Oscillator
Multipurpose Oscillator, Phase Locked Loop (PLL), 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
Universal Serial Bus (USBC)
Full Speed and Low Speed USB Device Support
Multi-packet Ping-pong Mode
Six 16-bit Timer/Counter (TC) Channels
External Clock Inputs, PWM, Capture, and Various Counting Capabilities
36 PWM Channels (PWMA)
12-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
32142DS–06/2013
32-bit Atmel
AVR
Microcontroller
ATUC256L3U
ATUC128L3U
ATUC64L3U
ATUC256L4U
ATUC128L4U
ATUC64L4U
Summary

Summary of content (45 pages)