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 16-bit Timer/Counter (TC) channels
PWM channels on all I/O pins (PWMA)
Four universal synchronous/asynchronous receiver/transmitters (USART)
One Master/Slave Serial Peripheral Interface (SPI) with chip select signals
Two master and two slave 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
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