ATMEGA8515-16PI Equivalent & Substitute Parts

Part Overview

The ATMEGA8515-16PI 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 16MHz with a supply voltage range of 4.5V to 5.5V and is housed in a 40-pin DIP package. The ATMEGA8515-16PI is classified as obsolete, making identification of compatible substitute parts essential for ongoing system support and new design implementations.

Substiute Parts

ATMEGA8515-16PI

Microchip TechnologyIn Stock: 949ATMEGA8515-16PI Datasheet

Current PartRFQ

ATMEGA8515-16PU

Microchip TechnologyIn Stock: 6937ATMEGA8515-16PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATMEGA8515-16PI is determined by strict equivalence across the following critical parameters:

• Core processor architecture (AVR)
• Core size (8-Bit)
• Operating frequency (16MHz)
• Program memory capacity and type (8KB FLASH)
• EEPROM and RAM sizes (512 x 8 each)
• Supply voltage range (4.5V ~ 5.5V)
• I/O count (35 pins)
• Connectivity interfaces (EBI/EMI, SPI, UART/USART)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)
• Operating temperature range (-40°C ~ 85°C)
• Physical package format (40-DIP)

The ATMEGA8515-16PU meets all these criteria and is therefore a direct functional equivalent.

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA8515-16PU is the direct substitute for the ATMEGA8515-16PI. Both devices are functionally identical across all electrical and mechanical parameters. The primary distinction is product status and regulatory compliance: the ATMEGA8515-16PI is obsolete, while the ATMEGA8515-16PU maintains active production status. Additionally, the ATMEGA8515-16PU is ROHS3 compliant, whereas the ATMEGA8515-16PI is RoHS non-compliant. For new designs and ongoing system support, the ATMEGA8515-16PU is the appropriate selection. The packaging difference (PI denotes PDIP in plastic tube; PU denotes PDIP in plastic tube) does not affect electrical compatibility or functional performance.

Frequently Asked Questions (FAQ)

Q: Are the ATMEGA8515-16PI and ATMEGA8515-16PU pin-compatible?

A: Yes. Both devices use the 40-DIP package with identical pin assignments, voltage levels, and signal definitions. Direct socket substitution is possible without circuit modification.

Q: What is the difference between the PI and PU package designations?

A: The PI and PU designations both refer to 40-pin DIP packages. The primary difference is packaging format and product status. The ATMEGA8515-16PU is currently in active production, while the ATMEGA8515-16PI is obsolete.

Q: Can I use the ATMEGA8515-16PU in a circuit designed for the ATMEGA8515-16PI?

A: Yes. The ATMEGA8515-16PU is electrically and mechanically equivalent. All electrical specifications, memory configurations, operating ranges, and peripheral functions are identical. No circuit redesign is required.

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

A: The ATMEGA8515-16PU is ROHS3 compliant, meeting current environmental and hazardous substance restrictions. The ATMEGA8515-16PI is RoHS non-compliant. For applications subject to RoHS regulations or environmental standards, the ATMEGA8515-16PU is the required choice.

Q: Are there any timing or performance differences between these parts?

A: No. Both devices operate at 16MHz with identical instruction execution timing, memory access characteristics, and peripheral response times.