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AT91R40008-66AI-T

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AT91R40008-66AI-T

IC MCU 16/32BIT ROMLESS 100LQFP

Manufacturer: Microchip Technology

Categories: Microcontrollers

Quality Control: Learn More

Microchip Technology AT91 series microcontroller, part number AT91R40008-66AI-T. This 16/32-bit ARM7® core microcontroller operates at 66MHz and features a ROMless architecture. The device is supplied in a 100-LQFP (14x14) surface mount package. Key peripherals include Power-On Reset (POR) and Watchdog Timer (WDT). Connectivity options consist of External Bus Interface (EBI)/External Memory Interface (EMI) and UART/USART. It offers 256K x 8 RAM. This component is suitable for applications requiring flexible program memory implementation and operates within an ambient temperature range of -40°C to 85°C (TA), with a supply voltage of 1.65V to 1.95V. The AT91R40008-66AI-T is commonly utilized in industrial control, telecommunications, and consumer electronics applications.

Additional Information

Series: AT91RoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: Tape & Reel (TR)Datasheet:
Technical Details:
PackagingTape & Reel (TR)
Package / Case100-LQFP
Mounting TypeSurface Mount
Speed66MHz
Program Memory Size-
RAM Size256K x 8
Operating Temperature-40°C ~ 85°C (TA)
Oscillator TypeExternal
Program Memory TypeROMless
EEPROM Size-
Core ProcessorARM7®
Data Converters-
Core Size16/32-Bit
Voltage - Supply (Vcc/Vdd)1.65V ~ 1.95V
ConnectivityEBI/EMI, UART/USART
PeripheralsPOR, WDT
Supplier Device Package100-LQFP (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.

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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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