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AT91SAM7A3-AU

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AT91SAM7A3-AU

IC MCU 16/32B 256KB FLSH 100LQFP

Manufacturer: Microchip Technology

Categories: Microcontrollers

Quality Control: Learn More

Microchip Technology AT91SAM7A3-AU is a 16/32-bit ARM7® AT91SAM microcontroller operating at 60MHz. It features 256KB of FLASH program memory (256K x 8) and 32KB of RAM (32K x 8). This device includes an 8x10-bit Analog-to-Digital converter and essential peripherals such as Power-on Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT). Connectivity options include CANbus, I2C, Memory Card interface, SPI, SSC, and UART/USART. The microcontroller offers 62 I/O lines and an internal oscillator. It is supplied in a 100-LQFP (14x14) surface mount package and operates within a temperature range of -40°C to 85°C. The supply voltage is rated between 1.65V and 1.95V. This component is suitable for applications in industrial automation, automotive systems, and consumer electronics.

Additional Information

Series: AT91SAMRoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TrayDatasheet:
Technical Details:
PackagingTray
Package / Case100-LQFP
Mounting TypeSurface Mount
Speed60MHz
Program Memory Size256KB (256K x 8)
RAM Size32K x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeInternal
Program Memory TypeFLASH
EEPROM Size-
Core ProcessorARM7®
Data ConvertersA/D 8x10b
Core Size16/32-Bit
Voltage - Supply (Vcc/Vdd)1.65V ~ 1.95V
ConnectivityCANbus, I2C, Memory Card, SPI, SSC, UART/USART
PeripheralsPOR, PWM, WDT
Supplier Device Package100-LQFP (14x14)
Number of I/O62
ProgrammableNot Verified

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Microcontroller FAQs

A microcontroller is a compact integrated circuit that combines a processor, memory, and input/output peripherals for embedded control applications.

Microcontrollers execute programmed instructions to process sensor inputs and control outputs such as motors, displays, and communication interfaces.

Microcontrollers are commonly used in:

  • Automotive systems
  • Robotics
  • IoT devices
  • Industrial automation
  • Household appliances
  • Smart electronics

Microcontrollers integrate memory and peripherals on-chip for dedicated tasks, while microprocessors are designed for higher-performance computing systems requiring external components.

Frequently Asked Questions

As a full line supplier, we specialize in sourcing obsolete and hard to find electronic components for your projects.

After we receive your request submission, one of our account executives will reach out to your team to gather more information about your project requirements and ensure we tailor the order to your needs.

Once requirements such as date codes, quantities, target prices, testing requirements, and more are discussed, our purchasing team will secure stock through Microchip USA’s direct access to manufacturing partners’ excess inventory lists.

Our operations teams will handle logistics and fulfillment to ensure supply chain continuity, and our support team will provide clear communication throughout the process.

Our net terms for electronic component sourcing are flexible and vary by order. Our account executives will work with you to ensure our terms meet your company’s needs. We also offer scheduled shipments and inventory management solutions to ensure a steady supply of electronic components, maintain cash flow, and maximize warranty periods. We always offer a warranty on all tested parts. See our sales terms and conditions for more information.

We partner with industry-leading AS6171 & AS6081-certified third party testing labs to mitigate risk and support a wide array of end uses for your company’s requirements. Testing includes but isn’t limited to: Decapsulation & Internal Dye Verification. X-Ray Inspection & Analysis, External Visual Inspection, Surface Texture Analysis (SEM), and Electrical Pin Correlation.

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