Microchip AT32UC3A4256HHB-C1UR

Overview

32-bit AVR microcontroller designed for exceptionally high data throughput with Hi-Speed USB OTG, SD/SDIO card and Multi-Level-Cell (MLC) NAND flash with ECC interfaces. Designed with the multi-layered 32-bit AVR databus, 128 KB on-chip SRAM with triple high speed interfaces,and multi-channel Peripheral and memory to memory DMA controller, the AT32UC3A4256S offers outstanding data throughput. The device also features a Built-in Hi-Fi stereo Audio DAC, and a full duplex multi-channel I2S audio interface. The AT32UC3A4256S features an AES crypto module, capable of 128 to 256-bit AES encryption at speeds of up to 22.8 MBytes/s. Note that export restrictions apply to this variant. 128KB version: AT32UC3A4128S 64KB version: AT32UC3A464S 144-pin version: AT32UC3A4356S Non Crypto version: AT32UC3A4256

• High Performance, Low Power 32-bit 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 92DMIPS Running at 66MHz from Flash (1 Wait-State) • Up to 54 DMIPS Running at 36MHz 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, NandFlash (1-bit and 4-bit ECC), Compact Flash – Up to 66 MHz• External Storage device support – MultiMediaCard (MMC V4.3), Secure-Digital (SD V2.0), SDIO V1.1 – CE-ATA V1.1, FastSD, SmartMedia, Compact Flash – Memory Stick: Standard Format V1.40, PRO Format V1.00, Micro – IDE Interface• One Advanced Encryption System (AES) for AT32UC3A3256S, AT32UC3A3128S, AT32UC3A364S, AT32UC3A4256S, AT32UC3A4128S and AT32UC3A364S – 256-, 192-, 128-bit Key Algorithm, Compliant with FIPS PUB 197 Specifications – Buffer Encryption/Decryption Capabilities• Universal Serial Bus (USB) – High-Speed USB (480Mbit/s) Device/MiniHost with On-The-Go (OTG) – Flexible End-Point Configuration and Management with Dedicated DMA Channels – On-Chip Transceivers Including Pull-Ups• One 8-channel 10-bit Analog-To-Digital Converter, multiplexed with Digital IOs.• Two Three-Channel 16-bit Timer/Counter (TC)• Four Universal Synchronous/Asynchronous Receiver/Transmitters (USART) – Fractionnal Baudrate Generator – Support for SPI and LIN – Optionnal support for IrDA, ISO7816, Hardware Handshaking, RS485 interfaces and Modem Line• Two Master/Slave Serial Peripheral Interfaces (SPI) with Chip Select Signals• One Synchronous Serial Protocol Controller – Supports I2S and Generic Frame-Based Protocols• Two Master/Slave Two-Wire Interface (TWI), 400kbit/s I2C-compatible• 16-bit Stereo Audio Bitstream – Sample Rate Up to 50 KHz• On-Chip Debug System (JTAG interface) – Nexus Class 2+, Runtime Control, Non-Intrusive Data and Program Trace• 110 General Purpose Input/Output (GPIOs) – Standard or High Speed mode – Toggle capability: up to 66MHz• Packages – 144-ball TFBGA, 11x11 mm, pitch 0.8 mm – 144-pin LQFP, 22x22 mm, pitch 0.5 mm – 100-ball VFBGA, 7x7 mm, pitch 0.65 mm• Single 3.3V Power Supply

Features