AT32UC3L0256-AUT

The AT32UC3L0256-AUT is a 32-bit high-performance AVR® UC3 RISC Microcontroller is designed for cost-sensitive embedded applications that require low power consumption, high code density and high performance. The microcontroller's memory protection unit (MPU) and fast, flexible interrupt controller support the latest real-time operating systems. The secure access unit (SAU) with MPU provide enhanced security and integrity. A rich set of DSP instructions delivers higher computational capability. The microcontroller embeds state-of-the-art picoPower® technology for ultra-low power consumption. A combination of power control techniques brings active current consumption down to 165µA/MHz and leakage down to 9nA while still retaining a bank of backup registers. The device offers a wide range of trade-offs between functionality and power consumption to reach the lowest possible power usage for the application's required feature set.

• Compact single-cycle RISC instruction set including DSP instruction set
• picoPower® technology for ultra-low power consumption
• Multi-hierarchy bus system - High-performance data transfers on separate buses
• Internal high-speed flash - Single-cycle access up to 25MHz
• 32kB internal high-speed SRAM, single-cycle access at full speed
• Interrupt controller (INTC) - Auto vectored low-latency interrupt service with programmable priority
• External Interrupt Controller (EIC)
• Peripheral event system for direct peripheral to peripheral communication
• Windowed Watchdog Timer (WDT)
• Asynchronous timer (AST) with real-time clock capability
• Frequency meter (FREQM) for accurate measuring of clock frequency
• Six 16bit timer/counter (TC) channels
• PWM channels on all I/O pins (PWMA)
• Four universal synchronous/asynchronous receiver/transmitters (USART)
• Serial peripheral interface (SPI) with chip select signals
• Two-wire interfaces (TWI), 400kBps I²C-compatible
• One 8-channel analogue-to-digital converter (ADC) with up to 12-bit resolution
• Eight analogue comparators (AC) with optional window detection
• Capacitive touch (CAT) module
• QTouch library support - Capacitive touch buttons, sliders and wheels
• On-chip non-intrusive debug system
• 48-pin TQFP/QFN/TLLGA (36 GPIO pins)
• Five high-drive I/O pins
• Single 1.62 to 3.6V power supply