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AT91M40400-25AI

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AT91M40400-25AI

IC MCU 16/32BIT ROMLESS 100TQFP

Manufacturer: Microchip Technology

Categories: Microcontrollers

Quality Control: Learn More

Microchip Technology AT91SAM series microcontroller, part number AT91M40400-25AI. This ROMless, 16/32-bit ARM7® core microcontroller operates at 25MHz and features 4K x 8 of RAM. Connectivity options include EBI/EMI and UART/USART. It is supplied in a 100-TQFP (14x14) package for surface mounting and has 32 I/O lines. The device includes a Watchdog Timer (WDT) peripheral and requires an external oscillator. Designed for operation across a temperature range of -40°C to 85°C, this component is suitable for applications in industrial automation, consumer electronics, and telecommunications equipment. The supply voltage range is 2.7V to 3.6V.

Additional Information

Series: AT91SAMRoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tray
Technical Details:
PackagingTray
Package / Case100-TQFP
Mounting TypeSurface Mount
Speed25MHz
Program Memory Size-
RAM Size4K x 8
Operating Temperature-40°C ~ 85°C
Oscillator TypeExternal
Program Memory TypeROMless
EEPROM Size-
Core ProcessorARM7®
Data Converters-
Core Size16/32-Bit
Voltage - Supply (Vcc/Vdd)2.7V ~ 3.6V
ConnectivityEBI/EMI, UART/USART
PeripheralsWDT
Supplier Device Package100-TQFP (14x14)
Number of I/O32
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.