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ATMEGA103L-4AI

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ATMEGA103L-4AI

IC MCU 8BIT 128KB FLASH 64TQFP

Manufacturer: Microchip Technology

Categories: Microcontrollers

Quality Control: Learn More

Microchip Technology's AVR® ATmega ATMEGA103L-4AI is an 8-bit AVR microcontroller featuring a 4MHz core clock speed. This device offers 128KB of FLASH program memory, organized as 64K x 16, and 4KB of RAM. Integrated peripherals include POR, PWM, and WDT. Connectivity options are provided via SPI and UART/USART. The ATMEGA103L-4AI includes an 8x10-bit A/D converter and 32 general-purpose I/O pins. It operates within a voltage range of 2.7V to 3.6V and has an operating temperature range of -40°C to 85°C. The component is supplied in a 64-TQFP (14x14) surface-mount package, with internal oscillator support. It finds application in various industrial and consumer electronics.

Additional Information

Series: AVR® ATmegaRoHS Status: RoHS non-compliantManufacturer Lead Time: No lead time information availableProduct Status: ObsoletePackaging: TrayDatasheet:
Technical Details:
PackagingTray
Package / Case64-TQFP
Mounting TypeSurface Mount
Speed4MHz
Program Memory Size128KB (64K x 16)
RAM Size4K x 8
Operating Temperature-40°C ~ 85°C
Oscillator TypeInternal
Program Memory TypeFLASH
EEPROM Size4K x 8
Core ProcessorAVR
Data ConvertersA/D 8x10b
Core Size8-Bit
Voltage - Supply (Vcc/Vdd)2.7V ~ 3.6V
ConnectivitySPI, UART/USART
PeripheralsPOR, PWM, WDT
Supplier Device Package64-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.