Products > Integrated Circuits (ICs) > Embedded Processors & Controllers > ATMEGA103L-4AI
  • ATMEGA103L-4AI

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  • Package/Case :
  • TQFP64
  • Product Categories :
  • Microcontrollers
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 2587


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ATMEGA103L-4AI Product Details

The ATMEGA103L-4AI is a low-power CMOS 8-bit microcontroller based on the AVR enhanced RISC architecture. By executing powerful instructions in a single clock cycle, the ATMEGA103L-4AI achieves throughputs approaching 1 MIPS per MHz allowing the system designer to optimize power consumption versus processing speed. The AVR core is based on an enhanced RISC architecture that combines a rich instruction set with 32 general purpose working registers. All the 32 registers are directly connected to the Arithmetic Logic Unit (ALU), allowing two independent registers to be accessed in one single instruction executed in one clock cycle. The resulting architectures more code efficient while achieving throughputs up to ten times faster than conventional CISC microcontrollers. 

The ATMEGA103L-4AI provides the following features: 64K/128K bytes of In-system Programmable Flash, 2K/4K bytes EEPROM, 4K bytes SRAM, 32 general purpose I/O lines, 8 Input lines, 8 Output lines, 32 general purpose working registers, 4 flexible timer/counters with compare modes and PWM, UART, programmable Watchdog Timer with internal oscillator, an SPI serial port and three software selectable power saving modes. The Idle Mode stops the CPU while allowing the SRAM, timer/counters, SPI port and interrupt system to continue functioning. The Power Down mode saves the register contents but freezes the oscillator, disabling all other chip functions until the next interrupt or hardware reset. 

In Power Save mode, the timer oscillator continues to run, allowing the user to maintain a timer base while the rest of the device is sleeping. The device is manufactured using Atmel’s high-density non-volatile memory technology. The on-chip ISP Flash allows the program memory to be reprogrammed in-system through a serial interface or by a conventional nonvolatile memory programmer. By combining an 8-bit RISC CPU with a large array of ISP Flash on a monolithic chip, the Atmel ATMEGA103L-4AI is a powerful microcontroller that provides a highly flexible and cost effective solution to many embedded control applications. 

The ATMEGA103L-4AI AVR is supported with a full suite of program and system development tools including: C compilers, macro assemblers, program debugger/simulators, in-circuit emulators, and evaluation kits.



• Utilizes the AVR® Enhanced RISC Architecture

• 121 Powerful Instructions - Most Single Clock Cycle Execution

• 128K bytes of In-System Reprogrammable Flash ATmega103/L

64K bytes of In-System Reprogrammable Flash ATmega603/L

– SPI Interface for In-System Programming

– Endurance: 1,000 Write/Erase Cycles

• 4K bytes EEPROM ATmega103/L

2K bytes of EEPROM ATmega603/L

– Endurance: 100,000 Write/Erase Cycles

• 4K bytes Internal SRAM

• 32 x 8 General Purpose Working Registers + Peripheral Control Registers

• 32 Programmable I/O Lines, 8 Output Lines, 8 Input Lines

• Programmable Serial UART + SPI Serial Interface

• VCC Supply

– 2.7 - 3.6V ATmega603L/ATmega103L

– 4.0 - 5.5V ATmega603/ATmega103

• Fully Static Operation

– 0 - 6 MHz ATmega603/ATmega103

– 0 - 4 MHz ATmega603L/ATmega103L

• Up to 6 MIPS Throughput at 6 MHz

• RTC with Separate Oscillator

• Two 8-Bit Timer/Counters with Separate Prescaler and PWM

• One 16-Bit Timer/Counter with Separate Prescaler, Compare, Capture Modes and

Dual 8-, 9- or 10-Bit PWM

• Programmable Watchdog Timer with On-Chip Oscillator

• On-Chip Analog Comparator

• 8-Channel, 10-Bit ADC

• Low Power Idle, Power Save and Power Down Modes

• Software Selectable Clock Frequency

• Programming Lock for Software Security

Technical Parameters

  • Core Processor
  • AVR
  • Core Size
  • 8-Bit
  • Speed
  • 4MHz
  • Connectivity
  • Peripherals
  • Number of I/O
  • 32
  • Program Memory Size
  • 128KB (64K x 16)
  • Program Memory Type
  • EEPROM Size
  • 4K x 8
  • RAM Size
  • 4K x 8
  • Voltage Supply (Vcc/Vdd)
  • 2.7V ~ 3.6V
  • Data Converters
  • A/D 8x10b
  • Oscillator Type
  • Internal
  • Operating Temperature
  • -40??C ~ 85??C
  • Mounting Type
  • Surface Mount
  • Package / Case
  • 64-TQFP
  • Supplier Device Package
  • 64-TQFP (14x14)

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Estimated Delivery Time: Jan 29 - Feb 03 days (choose Expedited at checkout).

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We provide high quality products, thoughtful service and after sale guarantee

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    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

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    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

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All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that ATMEGA103L-4AI is the original manufacturer or agent of MICROCHIP?
We have a professional business development department to strictly test and verify the qualifications of MICROCHIP original manufacturers and agents. All MICROCHIP suppliers must pass the qualification review before they can publish their ATMEGA103L-4AI devices; we pay more attention to the channels and quality of ATMEGA103L-4AI products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of ATMEGA103L-4AI chips? Including MICROCHIP original factory information, Microcontrollers application, ATMEGA103L-4AI pictures?
You can use Jotrin's intelligent search engine, or filter by Microcontrollers category, or find it through Microchip Technology, Inc Information page.
Q: Are the MICROCHIP's ATMEGA103L-4AI price and stock displayed on the platform accurate?
The MICROCHIP's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for ATMEGA103L-4AI, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
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Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
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Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of ATMEGA103L-4AI?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the ATMEGA103L4AI we delivered, we will accept the replacement or return of the ATMEGA103L-4AI only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of ATMEGA103L-4AI.
(3)The ATMEGA103L-4AI is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
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Microchip Technology, Inc

Microchip Technology Inc. is a leading manufacturer of microcontroller and analog products, providing low-risk product development, lower total system cost, and faster time to market for thousands of diverse customer applications worldwide. Microchip offers outstanding technical support along with d...
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