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AT91SAM7A1-AU

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AT91SAM7A1-AU

IC MCU 16/32BIT ROMLESS 144LQFP

Manufacturer: Microchip Technology

Categories: Microcontrollers

Quality Control: Learn More

The Microchip Technology AT91SAM7A1-AU is a 16/32-Bit ARM7® core microcontroller operating at 40MHz. This ROMless device features 4KB of RAM and is supplied in a 144-LQFP (20x20) package, suitable for surface mount applications. Connectivity options include CANbus, EBI/EMI, SPI, and UART/USART interfaces. On-chip peripherals include Power-On Reset (POR), Pulse Width Modulation (PWM), and Watchdog Timer (WDT). Data conversion is supported by an 8x10-bit Analog-to-Digital converter. The AT91SAM series microcontroller operates within a voltage range of 3V to 3.6V and is specified for an operating temperature range of -40°C to 85°C. This component is utilized in industrial automation, communication systems, and embedded control applications.

Additional Information

Series: AT91SAMRoHS Status: ROHS3 CompliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tray
Technical Details:
PackagingTray
Package / Case144-LQFP
Mounting TypeSurface Mount
Speed40MHz
Program Memory Size-
RAM Size4K x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeInternal
Program Memory TypeROMless
EEPROM Size-
Core ProcessorARM7®
Data ConvertersA/D 8x10b
Core Size16/32-Bit
Voltage - Supply (Vcc/Vdd)3V ~ 3.6V
ConnectivityCANbus, EBI/EMI, SPI, UART/USART
PeripheralsPOR, PWM, WDT
Supplier Device Package144-LQFP (20x20)
Number of I/O49
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.

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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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