AT90S8515-8PC Equivalent & Substitute Parts

Part Overview

The AT90S8515-8PC is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 8KB of FLASH program memory, 512 bytes of EEPROM, and 512 bytes of RAM. This device operates at 8MHz with a 40-pin DIP package and supports SPI and UART/USART connectivity. The AT90S8515-8PC is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

AT90S8515-8PC

Microchip TechnologyIn Stock: 2987AT90S8515-8PC Datasheet

Current PartRFQ

ATMEGA8515L-8PU

Microchip TechnologyIn Stock: 1466ATMEGA8515L-8PU Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT90S8515-8PC is determined by the following critical parameters:

• Core processor architecture (AVR)
• Core size (8-Bit)
• Program memory capacity (8KB FLASH)
• EEPROM and RAM sizes (512 x 8 each)
• Package type and pin count (40-DIP)
• Mounting configuration (Through Hole)
• Connectivity interfaces (SPI, UART/USART)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)

The ATMEGA8515L-8PU qualifies as a direct substitute based on matching these core electrical and mechanical parameters. Both devices share identical program memory, EEPROM, and RAM configurations, operate at 8MHz, and are housed in the same 40-DIP package. The substitute maintains full compatibility with existing PCB layouts and firmware implementations designed for the AT90S8515-8PC.

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA8515L-8PU serves as the primary substitute for the AT90S8515-8PC. Both devices are classified as obsolete; however, the ATMEGA8515L-8PU offers improved compliance status with ROHS3 certification, whereas the original part is RoHS non-compliant. The substitute provides an extended operating temperature range (-40°C to 85°C versus 0°C to 70°C) and broader supply voltage tolerance (2.7V to 5.5V versus 4V to 6V), making it suitable for applications requiring enhanced environmental performance. The ATMEGA8515L-8PU includes additional I/O pins (35 versus 32) and extended connectivity options (EBI/EMI support), providing functional enhancements while maintaining full backward compatibility with existing AT90S8515-8PC implementations.

Frequently Asked Questions (FAQ)

Q: Can the ATMEGA8515L-8PU be used as a direct replacement for the AT90S8515-8PC in existing designs?

A: Yes. Both devices share identical program memory (8KB), EEPROM (512 x 8), RAM (512 x 8), clock speed (8MHz), and 40-DIP package configuration. The pin assignments and core instruction set are compatible, allowing direct PCB substitution without layout modifications.

Q: What are the key differences between these two parts?

A: The ATMEGA8515L-8PU provides an extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), broader supply voltage range (2.7V to 5.5V versus 4V to 6V), three additional I/O pins (35 versus 32), and ROHS3 compliance. The original AT90S8515-8PC is RoHS non-compliant.

Q: Are there any voltage supply considerations when substituting?

A: The AT90S8515-8PC requires 4V to 6V supply, while the ATMEGA8515L-8PU operates from 2.7V to 5.5V. Designs operating within the 4V to 5.5V range are fully compatible. Designs requiring operation below 4V or above 5.5V require circuit evaluation.

Q: Does the package remain the same?

A: Yes. Both parts use the 40-DIP (0.600", 15.24mm) through-hole package with identical pin assignments, ensuring direct PCB compatibility.

Q: What is the significance of the RoHS compliance difference?

A: The ATMEGA8515L-8PU meets ROHS3 standards, making it suitable for applications subject to RoHS regulations. The AT90S8515-8PC is RoHS non-compliant and may not be acceptable for regulated applications or new designs in regions with RoHS requirements.