ATMEGA8515L-8AC Equivalent & Substitute Parts

Part Overview

The ATMEGA8515L-8AC 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. The device operates at 8MHz with a supply voltage range of 2.7V to 5.5V and is housed in a 44-TQFP package. This part is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs and production continuity.

Substiute Parts

ATMEGA8515L-8AC

Microchip TechnologyIn Stock: 2292ATMEGA8515L-8AC Datasheet

Current PartRFQ

ATMEGA8515L-8AU

Microchip TechnologyIn Stock: 17881ATMEGA8515L-8AU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATMEGA8515L-8AC is determined by strict equivalence across the following critical parameters:

• Core processor architecture (AVR)
• Core size (8-Bit)
• Operating frequency (8MHz)
• Program memory capacity and type (8KB FLASH)
• EEPROM and RAM sizes (512 x 8 each)
• Supply voltage range (2.7V ~ 5.5V)
• I/O count (35 pins)
• Connectivity interfaces (EBI/EMI, SPI, UART/USART)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)
• Physical package (44-TQFP)

The ATMEGA8515L-8AU meets all these criteria and is identified as a direct substitute. Differences in packaging format (Tray vs. standard packaging) and product status do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA8515L-8AU is the direct functional equivalent of the ATMEGA8515L-8AC. Selection of the ATMEGA8515L-8AU is supported by the following factors:

• Identical electrical and functional specifications across all core parameters
• Active product status ensures ongoing availability and manufacturing support
• ROHS3 compliance meets current regulatory requirements, whereas the original part is non-compliant
• Extended operating temperature range (-40°C ~ 85°C) provides broader environmental tolerance compared to the original specification (0°C ~ 70°C)
• Verified programmability status confirms compatibility with existing development and programming infrastructure

For applications requiring the original operating temperature range (0°C ~ 70°C), the ATMEGA8515L-8AU remains suitable due to its extended range encompassing the original specification.

Frequently Asked Questions (FAQ)

Q: Are the ATMEGA8515L-8AC and ATMEGA8515L-8AU pin-compatible?

A: Yes. Both devices use the 44-TQFP (10x10) package with identical pinout and I/O configuration (35 I/O pins).

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

A: The suffix designates packaging format. The ATMEGA8515L-8AC uses standard packaging, while the ATMEGA8515L-8AU uses Tray packaging. Functional specifications are identical.

Q: Can the ATMEGA8515L-8AU be used as a direct replacement in existing designs?

A: Yes, provided the application does not require the specific operating temperature range of 0°C ~ 70°C. The ATMEGA8515L-8AU operates across -40°C ~ 85°C, which encompasses the original range.

Q: Why is the ATMEGA8515L-8AC classified as obsolete?

A: Product status reflects Microchip Technology's manufacturing and support decisions. The ATMEGA8515L-8AU remains in active production.

Q: Are there compliance differences between these parts?

A: Yes. The ATMEGA8515L-8AU is ROHS3 compliant, while the ATMEGA8515L-8AC is non-compliant. For applications subject to RoHS regulations, the ATMEGA8515L-8AU is required.

Q: What memory specifications should I verify for substitution?

A: Both parts feature identical memory: 8KB FLASH program memory, 512 bytes EEPROM, and 512 bytes RAM. No memory-related design changes are required.

Q: Are the supply voltage requirements the same?

A: Yes. Both parts operate across 2.7V ~ 5.5V supply voltage range with identical electrical characteristics.