ATMEGA8L-8AJ Equivalent & Substitute Parts

Part Overview

The ATMEGA8L-8AJ is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 8KB of FLASH program memory, 1KB of RAM, and 512 bytes of EEPROM. This device integrates 23 I/O pins, internal oscillator, and peripheral support for I2C, SPI, and UART/USART communication protocols. The ATMEGA8L-8AJ is classified as obsolete, making identification of active equivalent parts essential for new designs and production continuity.

Substiute Parts

ATMEGA8L-8AJ

Microchip TechnologyIn Stock: 815ATMEGA8L-8AJ Datasheet

Current PartRFQ

ATMEGA8L-8AU

Microchip TechnologyIn Stock: 17440ATMEGA8L-8AU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

The ATMEGA8L-8AU qualifies as a direct substitute for the ATMEGA8L-8AJ based on identical electrical and mechanical specifications. Substitution is determined by the following critical parameters:

Core processor architecture (AVR), core size (8-Bit), clock speed (8MHz), program memory capacity and type (8KB FLASH), EEPROM size (512 x 8), RAM size (1K x 8), I/O pin count (23), supply voltage range (2.7V ~ 5.5V), data converter configuration (A/D 8x10b), connectivity interfaces (I2C, SPI, UART/USART), peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT), operating temperature range (-40°C ~ 85°C), and physical package format (32-TQFP 7x7).

The ATMEGA8L-8AU maintains identical functional and electrical characteristics while offering active product status and verified programmability through DiGi-Electronics.

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA8L-8AU is the appropriate substitute for the obsolete ATMEGA8L-8AJ. Both devices maintain identical electrical specifications, memory configuration, I/O architecture, and peripheral functionality. The ATMEGA8L-8AU offers the advantage of active product status, ensuring long-term availability and supply chain continuity. Both parts comply with ROHS3 and REACH requirements, with matching ECCN and HTSUS classifications. The ATMEGA8L-8AU carries verified programmability certification through DiGi-Electronics, supporting seamless integration into existing development workflows and production processes.

Frequently Asked Questions (FAQ)

Q: Can the ATMEGA8L-8AU directly replace the ATMEGA8L-8AJ in existing designs?

A: Yes. The ATMEGA8L-8AU is electrically and mechanically identical to the ATMEGA8L-8AJ. Both devices feature the same 32-TQFP package, pinout, memory configuration, and operational specifications. No circuit modifications are required.

Q: What is the primary difference between these two part numbers?

A: The ATMEGA8L-8AJ is classified as obsolete, while the ATMEGA8L-8AU maintains active product status. The ATMEGA8L-8AU is the recommended selection for new designs and ongoing production.

Q: Are the packaging specifications identical?

A: Yes. Both parts use 32-TQFP (7x7) surface mount packaging with identical pin assignments, voltage ratings, and thermal characteristics. Moisture sensitivity level (MSL 3, 168 hours) is identical for both devices.

Q: Do both parts support the same communication protocols?

A: Yes. Both the ATMEGA8L-8AJ and ATMEGA8L-8AU support I2C, SPI, and UART/USART connectivity with identical peripheral configurations including Brown-out Detect/Reset, POR, PWM, and WDT functionality.

Q: Are there any compliance or certification differences?

A: No. Both parts are ROHS3 compliant, REACH unaffected, and classified under identical ECCN (EAR99) and HTSUS (8542.31.0001) codes. Regulatory status is equivalent.