AT32UC3A4128S

Features High Performance, Low Power 32-bit Atmel® AVR® Microcontroller – Compact Single-Cycle RISC Instruction Set Including DSP Instruction Set – Read-Modify-Write Instructions and Atomic Bit Manipulation – Performing up to 1.51DMIPS/MHz Up to 126 DMIPS Running at 84MHz from Flash (1 Wait-State) Up to 63 DMIPS Running at 42MHz from Flash (0 Wait-State) – Memory Protection Unit Multi-Layer Bus System – High-Performance Data Transfers on Separate Buses for Increased Performance – 8 Peripheral DMA Channels (PDCA) Improves Speed for Peripheral Communication – 4 generic DMA Channels for High Bandwidth Data Paths Internal High-Speed Flash – 256KBytes, 128KBytes, 64KBytes versions – Single-Cycle Flash Access up to 36MHz – Prefetch Buffer Optimizing Instruction Execution at Maximum Speed – 4 ms Page Programming Time and 8ms Full-Chip Erase Time – 100,000 Write Cycles, 15-year Data Retention Capability – Flash Security Locks and User Defined Configuration Area Internal High-Speed SRAM – 64KBytes Single-Cycle Access at Full Speed, Connected to CPU Local Bus – 64KBytes (2x32KBytes with independent access) on the Multi-Layer Bus System Interrupt Controller – Autovectored Low Latency Interrupt Service with Programmable Priority System Functions – Power and Clock Manager Including Internal RC Clock and One 32KHz Oscillator – Two Multipurpose Oscillators and Two Phase-Lock-Loop (PLL), – Watchdog Timer, Real-Time Clock Timer External Memories – Support SDRAM, SRAM, NandFl...