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Microchip AT91SAM7X256-AU

High-performance microcontroller with 32-bit architecture and 55 MHz frequency

ISO14001 ISO9001 DUNS

Brands: Microchip

Mfr.Part #: AT91SAM7X256-AU

Datasheet: AT91SAM7X256-AU Datasheet (PDF)

Package/Case: LQFP-100

Product Type: Microcontrollers

RoHS Status:

Stock Condition: 6,554 pcs, New Original

Warranty: 1 Year Ovaga Warranty - Find Out More

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AT91SAM7X256-AU General Description

The AT91SAM7X256-AU microcontroller shines as a powerhouse within the Atmel (now Microchip Technology) family, boasting a robust set of features tailored for high-performance embedded applications. At its core lies the ARM7TDMI-S CPU running at speeds of up to 55 MHz, ensuring seamless operation even in demanding scenarios. With ample storage capacity, consisting of 256 KB of flash memory for program storage and 64 KB of SRAM for data retention, this microcontroller is equipped to handle complex tasks with ease


  • High-speed serial interface with FIFO
  • Ten-bit ADC and DAC converters for analog input
  • Six GPIO lines, five I2C/SPI interfaces
  • Five-channel PWM timer with four outputs


  • Automated factories
  • GPS tracking devices
  • Electronic control units
Microchip Inventory


Parameter Value Parameter Value
Product Category ARM Microcontrollers - MCU RoHS Details
Series SAM7X/XC Mounting Style SMD/SMT
Package / Case LQFP-100 Core ARM7TDMI
Program Memory Size 256 kB Data Bus Width 32 bit
Maximum Clock Frequency 55 MHz Number of I/Os 62 I/O
Data RAM Size 64 kB Supply Voltage - Min 1.65 V
Supply Voltage - Max 1.95 V Minimum Operating Temperature - 40 C
Maximum Operating Temperature + 85 C Analog Supply Voltage 3.3 V
Brand Microchip Technology Height 1.4 mm
I/O Voltage 3.3 V Interface Type CAN, SPI, SSC, TWI, USART, USB
Length 14 mm Moisture Sensitive Yes
Number of Timers/Counters 1 Timer Product Type ARM Microcontrollers - MCU
Program Memory Type Flash Factory Pack Quantity 90
Subcategory Microcontrollers - MCU Width 14 mm
Part # Aliases AT91SAM7X256B-AU


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1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

  • ESD
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Part points

  • The AT91SAM7X256-AU chip is a microcontroller unit (MCU) designed by Atmel. It is based on the ARM7TDMI-S architecture and offers a rich set of peripherals, power management, and memory options. This chip is suitable for various applications, including industrial automation, robotics, and automotive systems, among others. It provides a cost-effective and highly integrated solution for embedded systems with its advanced features and performance capabilities.
  • Features

    AT91SAM7X256-AU is a microcontroller developed by Atmel. It features a 32-bit ARM7TDMI core, clocked at 55 MHz, and includes 256 KB of flash memory and 64 KB of SRAM. It has a wide range of peripheral interfaces, such as UART, SPI, I2C, and USB. It also offers advanced power management capabilities and supports reliable and secure code execution.
  • Pinout

    The AT91SAM7X256-AU microcontroller has 100 pins. It is an ARM-based microcontroller that offers a variety of functions including GPIO, USARTs, SPI, TWI, ADC, PWM, timers, and more.
  • Manufacturer

    AT91SAM7X256-AU is manufactured by Microchip Technology Inc., an American company that specializes in producing microcontrollers, mixed-signal, and analogue semiconductors.
  • Application Field

    The AT91SAM7X256-AU microcontroller can be used in various application areas, including industrial automation, consumer electronics, automotive, and telecommunications. It offers features such as multiple serial communication interfaces, on-chip peripherals, and high-speed data transfer capabilities, making it suitable for a range of embedded systems.
  • Package

    The AT91SAM7X256-AU chip is available in a 100-lead TQFP (Thin Quad Flat Package) package type. Its form is a surface-mount device, designed for easy integration into printed circuit boards. The size of the chip is approximately 14mm x 14mm.

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