Microchip Technology Inc
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AT91SAM7SE256
DATA SHEET
(04/01/2012)

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AT91SAM7SE256

In Production

Microchip's ARM®-based SAM7SE256 is a member of the SAM7SE series of flash microcontrollers based on the 32-bit ARM7TDMI RISC processor.

It operates at a maximum speed of 55MHz and features 256KB of flash memory and 32KB of SRAM. The peripheral set includes an external bus interface (EBI) supporting static memory, ECC-enabled NAND, CompactFlash and SDRAM, UART, two USARTs, TWI (I2C), SPI, SSC, four 16-bit PWM controllers, three 16-bit timers, an RTT and one 8x10-bit ADC.

It achieves single-cycle instruction access from embedded flash at 27 MIPS. The multi-layer bus matrix, multiple SRAM banks, PDC, and DMA support parallel tasks and maximize data throughput.

The SAM7SE256 operates from 1.65V to 3.6V and is available in 144-pin LFBGA and LQFP 128-pin package.

 

    Features

        Microcontroller Features

        Core

        • ARM7TDMI® ARM® Thumb® Processor 32-bit RISC Architecture

        • High-density 16-bit Instruction Set

        • EmbeddedICE™ In-circuit Emulation, Debug Communication Channel Support

        Memories

        • 256 Kbytes embedded Flash

        • 32 Kbytes embedded SRAM, Single-cycle Access at Maximum Speed  

        • Memory Controller (MC), External Bus Interface

        • Memory Protection Unit

        System

        • Based on Power-on Reset Cells and Low-power Factory-calibrated Brownout Detector

        • Low-power RC Oscillator, 3 to 20 MHz On-chip Oscillator and One PLL

        • Power Management Controller (PMC)

        • Advanced Interrupt Controller (AIC)

        • Two-wire UART and Support for Debug Communication Channel interrupt, Programmable ICE Access Prevention

        • 20-bit Programmable Counter plus 12-bit Interval Counter

        • Windowed Watchdog (WDT)

        • Real-time Timer (RTT)

        • Three Parallel Input/Output Controllers (PIO)

        • Eleven Peripheral DMA Controller (PDC) Channels

        • Four High-current Drive I/O lines, Up to 16 mA Each

        Package

        • 128-lead LQFP Green Package

        • 144-ball LFBGA RoHS-compliant Package

        Peripheral Features

        • One Synchronous Serial Controller (SSC)

        • Two Universal Synchronous/Asynchronous Receiver Transmitters (USART)

        • One Master/Slave Serial Peripheral Interfaces (SPI)

        • One USB 2.0 Full Speed (12 Mbits per second) Device Port

        • One Three-channel 16-bit Timer/Counter (TC)

        • One Four-channel 16-bit PWM Controller (PWMC)

        • One Two-wire Interface (TWI)

        Analog Features

        • One 8-channel 10-bit Analog-to-Digital Converter, Four Channels Multiplexed with Digital I/Os

        Fully Static Operation

        • Up to 55 MHz at 1.8V and 85⋅ C Worst Case Conditions
        • Up to 48 MHz at 1.65V and 85⋅ C Worst Case Conditions

        Debugger Development Support

        • SAM-BA - Interface with SAM-BA Graphic User Interface

        • IEEE® 1149.1 JTAG Boundary Scan on All Digital Pins

    Parameter Name
    Value
    Family
    AT91SAM7SE256
    Max Speed MHz
    48
    Program Memory Size (KB)
    256
    RAM (KB)
    32
    DRAM Memory Interface
    sdram
    Temperature Range (C)
    -40 to 85
    Operating Voltage Range (V)
    3 to 3.6
    DMA Channels
    11
    SPITM
    1
    I2CTM Compatible
    1
    Peripheral Pin Select (PPS) Crossbar
    Yes
    USB
    1
    A/D channels
    8
    Max A/D Resolution
    10
    Max A/D Sample Rate (KSPS)
    384
    Input Capture
    3
    16-bit Digital Timers
    3
    Parallel Port
    EBI
    Internal Oscillator
    32Khz
    I/O Pins
    88
    Pin Count
    144
    Documentation
    Data Sheets
    04/01/2001
    1778KB
    Data Sheets
    04/01/2012
    777KB
    Data Sheets
    04/01/2012
    5953KB
      Application Notes
     
     
     
    AppNote
    06/01/2002
    116KB
    AppNote
    01/01/2003
    89KB
    AppNote
    10/01/2003
    87KB
    AppNote
    10/01/2003
    109KB
    AppNote
    12/01/2014
    2009KB
    AppNote
    12/10/2016
    472KB
    AppNote
    12/10/2016
    318KB
    AppNote
    12/10/2016
    341KB
    AppNote
    12/10/2016
    347KB
    AppNote
    12/10/2016
    362KB
    AppNote
    12/10/2016
    292KB
    AppNote
    12/10/2016
    409KB
    AppNote
    12/10/2016
    340KB
    AppNote
    12/10/2016
    383KB
    AppNote
    12/10/2016
    328KB
    AppNote
    12/01/2014
    2007KB
    AppNote
    06/01/2015
    6498KB
    AppNote
    12/10/2016
    828KB
    AppNote
    11/01/2003
    114KB
    AppNote
    03/01/2005
    140KB
    AppNote
    12/01/2005
    210KB
    AppNote
    02/01/2006
    249KB
    AppNote
    08/01/2006
    149KB
    AppNote
    06/01/2007
    77KB
    AppNote
    09/01/2006
    335KB
    AppNote
    12/01/2007
    633KB
    AppNote
    12/01/2007
    700KB
    AppNote
    07/01/2009
    366KB
    AppNote
    07/01/2009
    543KB
    AppNote
    12/01/2006
    192KB
    AppNote
    07/01/2009
    715KB
    AppNote
    01/01/2007
    277KB
    AppNote
    03/01/2007
    288KB
    AppNote
    03/01/2007
    336KB
    AppNote
    03/01/2007
    304KB
    AppNote
    04/01/2007
    296KB
    AppNote
    06/01/2009
    317KB
    AppNote
    03/01/2007
    2964KB
    AppNote
    11/01/2007
    774KB
    AppNote
    07/01/2009
    464KB
    AppNote
    06/01/2008
    674KB
    AppNote
    06/01/2008
    681KB
    AppNote
    07/01/2009
    900KB
    AppNote
    06/23/2017
    302KB
      Brochures
     
     
     
    Brochures
    12/10/2016
    3582KB
    Brochures
    11/01/2014
    785KB
    Brochures
    12/10/2016
    4660KB
      Product Document
     
     
     
     
    Product Document
    01/01/2010
    411KB
      Quick Start Guides
     
     
     
    Quick Start Guides
    02/01/2005
    79KB
    Quick Start Guides
    05/01/2013
    112KB
    Quick Start Guides
    06/01/2013
    933KB
    Quick Start Guides
    05/01/2013
    104KB
      User Guides
     
     
     
     
    User Guides
    02/01/2007
    561KB
    Pricing & Samples
    All pricing shown in USD only.
    Part Number
    Leads
    Package Type
    Temp Range
    Packing
    1+
    26+
    100+
    1000+
    5000+
    Buy
    Sample
    AT91SAM7SE256B-AU
    128
    LQFP
    -40C to +85C
    TRAY
    9.87
    8.97
    8.13
    7.43
    7.12
    AT91SAM7SE256B-AUR
    128
    LQFP
    -40C to +85C
    T/R
    10.21
    9.29
    8.41
    7.69
    7.37
    AT91SAM7SE256B-CU
    144
    LFBGA
    -40C to +85C
    TRAY
    10.91
    9.92
    8.99
    8.22
    7.88
    AT91SAM7SE256B-CUR
    144
    LFBGA
    -40C to +85C
    T/R
    11.26
    10.23
    9.27
    8.47
    8.12

    ** Device not available to purchase online. Please contact a sales office for pricing information.
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    Development Tools
    • Demo & Eval Boards
    • SAM-ICE ( AT91SAM-ICE )

      SAM-ICE

      SAM-ICE is a JTAG emulator designed for SAMA5, SAM3, SAM4, SAM7 and SAM9 ARM® core-based MCUs and MPUs, including Thumb mode. It supports download speeds up to 720K Bytes per second and maximum JTAG speeds up to 12 MHZ. It also supports Serial Wire Debug (SWD) and Serial Wire Viewer (SWV) from SAM-ICE hardware V6.

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    RoHS Information
    Part
    Number
    Device
    Weight
    Shipping
    Weight
    Lead
    Count
    Package
    Type
    Package
    Width
    Solder
    Composition
    JEDEC
    Indicator
    RoHS
     
    China
    EFUP
    AT91SAM7SE256B-CU
    0.214700
    0.217391
    144
    LFBGA
    10x10x1.4mm
    LF35
    e8
    AT91SAM7SE256B-CUR
    0.214700
    0.217000
    144
    LFBGA
    10x10x1.4mm
    LF35
    e8
    AT91SAM7SE256B-AU
    1.016800
    1.013889
    128
    LQFP
    14x20x1.4mm
    Matte Tin
    e3
    AT91SAM7SE256B-AUR
    1.016800
    1.017333
    128
    LQFP
    14x20x1.4mm
    Matte Tin
    e3
    To see a complete listing of RoHS data for this device, please Click here
    Shipping Weight = Device Weight + Packing Material weight. Please contact sales office if device weight is not available.