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AT91SAM7S256D-AU - Microchip

Description: ARM7® SAM7S Microcontroller IC 16/32-Bit 55MHz 256KB (256K x 8) FLASH 64-LQFP (10x10)

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AT91SAM7S256D-AU - Microchip PCB footprint - Quad Flat Packages - Quad Flat Packages - 64-lead LQFP_2026
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AT91SAM7S256D-AU - Microchip  - 3D model - Quad Flat Packages - 64-lead LQFP_2026
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AT91SAM7S256D-AU Details

  • Manufacturer Part Number:

    AT91SAM7S256D-AU

  • Pbfree Code:

    Yes

  • Rohs Code:

    Yes

  • Part Life Cycle Code:

    Active

  • Pin Count:

    64

  • Manufacturer Package Code:

    LQFP-64

  • Similar Group:

    MC001002102211021200

  • Country Of Origin:

    Philippines, Taiwan

  • ECCN Code:

    3A991.A.2

  • HTS Code:

    8542.31.00.01

  • Factory Lead Time:

    7 Weeks

  • Manufacturer:

    Microchip Technology Inc

  • YTEOL:

    13

  • Has ADC:

    YES

  • Bit Size:

    32

  • Boundary Scan:

    YES

  • CPU Family:

    ARM7

  • Clock Frequency-Max:

    20 MHz

  • DAC Channels:

    NO

  • DMA Channels:

    YES

  • Format:

    FIXED POINT

  • Integrated Cache:

    NO

  • JESD-30 Code:

    S-PQFP-G64

  • JESD-609 Code:

    e3

  • Length:

    10 mm

  • Low Power Mode:

    YES

  • Moisture Sensitivity Level:

    3

  • Number of DMA Channels:

    11

  • Number of External Interrupts:

    2

  • Number of I/O Lines:

    32

  • Number of Serial I/Os:

    3

  • Number of Terminals:

    64

  • Number of Timers:

    3

  • On Chip Data RAM Width:

    8

  • On Chip Program ROM Width:

    8

  • Operating Temperature-Max:

    85 °C

  • Operating Temperature-Min:

    -40 °C

  • PWM Channels:

    YES

  • Package Body Material:

    PLASTIC/EPOXY

  • Package Code:

    LFQFP

  • Package Equivalence Code:

    QFP64,.47SQ,20

  • Package Shape:

    SQUARE

  • Package Style:

    FLATPACK, LOW PROFILE, FINE PITCH

  • Packing Method:

    TRAY

  • Qualification Status:

    Not Qualified

  • RAM (bytes):

    65536

  • ROM (words):

    262144

  • ROM Programmability:

    FLASH

  • Seated Height-Max:

    1.6 mm

  • Speed:

    55 MHz

  • Supply Voltage-Max:

    1.95 V

  • Supply Voltage-Min:

    1.8 V

  • Supply Voltage-Nom:

    1.8 V

  • Surface Mount:

    YES

  • Technology:

    CMOS

  • Temperature Grade:

    INDUSTRIAL

  • Terminal Finish:

    Matte Tin (Sn)

  • Terminal Form:

    GULL WING

  • Terminal Pitch:

    0.5 mm

  • Terminal Position:

    QUAD

  • Width:

    10 mm

  • uPs/uCs/Peripheral ICs Type:

    MICROCONTROLLER, RISC

AT91SAM7S256D-AU Frequently Asked Questions (FAQs)

  • The maximum clock frequency of the AT91SAM7S256D-AU is 48 MHz.
  • The clock source can be configured using the Clock Controller (CKGR) register. The internal RC oscillator, external crystal oscillator, or external clock source can be selected as the clock source.
  • The Brown-out Detector (BOD) is used to detect when the voltage supply drops below a certain threshold, and can be used to reset the microcontroller or generate an interrupt.
  • The PDC can be used to transfer data between peripherals and memory without CPU intervention. The PDC is configured using the PDC registers, and the transfer is triggered by the peripheral's DMA request signal.
  • The AT91SAM7S256D-AU has 256 KB of flash memory, but only 128 KB can be used for data storage. The remaining 128 KB is used for the bootloader and firmware.

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About Microchip

Microchip Technology Inc. is a leading manufacturer of microcontrollers and semiconductor devices for a wide range of applications in the aerospace, automotive, consumer electronics, industrial, and medical industries. Alongside a comprehensive product portfolio, Microchip Technology Inc. also provides easy-to-use development tools that enable engineers to create optimal designs quickly with minimal iterations to reduce risk while lowering total system costs to market. Headquartered in Chandler, Arizona, th

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