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
32-bit Atmel
picoPower Technology for Ultra-low Power Consumption
Multi-hierarchy Bus System
AVR
High-performance Data Transfers on Separate Buses for Increased Performance
12 Peripheral DMA Channels Improve Speed for Peripheral Communication
Microcontroller
Internal High-speed Flash
256Kbytes and 128Kbytes Versions
Single-cycle Access up to 25MHz
FlashVault Technology Allows Pre-programmed Secure Library Support for End AT32UC3L0256
User Applications
AT32UC3L0128
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
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
Six 16-bit Timer/Counter (TC) Channels
External Clock Inputs, PWM, Capture, and Various Counting Capabilities
PWM Channels on All I/O Pins (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 Interface (SPI) with Chip Select Signals
Up to 15 SPI Slaves can be Addressed
32145C06/2013AT32UC3L0128/256
2
Two Master and Two Slave Two-wire Interfaces (TWI), 400kbit/s I C-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
2
32145C06/2013