ATMEGA8L-8PJ Equivalent & Substitute Parts

Part Overview

The ATMEGA8L-8PJ 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 including I2C, SPI, and UART/USART connectivity. The ATMEGA8L-8PJ is classified as obsolete, making identification of equivalent substitute parts essential for ongoing design support and production continuity. The ATMEGA8L-8PU provides direct functional equivalence while maintaining active product status.

Substiute Parts

ATMEGA8L-8PJ

Microchip TechnologyIn Stock: 995ATMEGA8L-8PJ Datasheet

Current PartRFQ

ATMEGA8L-8PU

Microchip TechnologyIn Stock: 6587ATMEGA8L-8PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATMEGA8L-8PJ is determined by strict equivalence across the following critical parameters:

• Core Architecture: AVR processor family
• Memory Configuration: 8KB FLASH, 1KB RAM, 512 bytes EEPROM
• I/O Count: 23 pins
• Operating Voltage: 2.7V ~ 5.5V range
• Package Type: 28-DIP through-hole form factor
• Peripheral Set: I2C, SPI, UART/USART, PWM, WDT, Brown-out Detect/Reset, POR
• Speed Rating: 8MHz operation

The ATMEGA8L-8PU meets all substitution criteria. The primary distinction between these parts is packaging format (tube vs. standard) and product lifecycle status (active vs. obsolete), with no functional or electrical differences.

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA8L-8PU is the direct substitute for the ATMEGA8L-8PJ. Both devices maintain identical electrical specifications, memory configuration, I/O architecture, and peripheral functionality. The ATMEGA8L-8PU carries active product status from Microchip Technology, ensuring continued availability and manufacturing support. Both parts comply with ROHS3 and REACH requirements, meeting current environmental and regulatory standards. Selection of the ATMEGA8L-8PU eliminates obsolescence risk while preserving complete design compatibility.

Frequently Asked Questions (FAQ)

Q: Are the ATMEGA8L-8PJ and ATMEGA8L-8PU electrically identical?

A: Yes. Both devices share identical core architecture, memory capacity, I/O count, voltage specifications, and peripheral configuration. No circuit modifications are required for substitution.

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

A: The primary difference is packaging format. The ATMEGA8L-8PJ uses standard packaging, while the ATMEGA8L-8PU is supplied in tube packaging. The ATMEGA8L-8PU also maintains active product status, whereas the ATMEGA8L-8PJ is classified as obsolete.

Q: Can I use the ATMEGA8L-8PU as a direct replacement in existing designs?

A: Yes. The 28-DIP package footprint is identical, and all electrical and functional parameters match. No PCB redesign or firmware modification is necessary.

Q: Are both parts RoHS and REACH compliant?

A: Yes. Both the ATMEGA8L-8PJ and ATMEGA8L-8PU are ROHS3 compliant and REACH unaffected.

Q: Why should I transition from ATMEGA8L-8PJ to ATMEGA8L-8PU?

A: The ATMEGA8L-8PJ is obsolete. The ATMEGA8L-8PU provides identical functionality with active manufacturing status, ensuring long-term availability and supply chain stability.