ATMEGA8515-16PC Equivalent & Substitute Parts

Part Overview

The ATMEGA8515-16PC 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. Operating at 16MHz with a 40-pin DIP package, this device integrates essential peripherals including UART/USART, SPI, PWM, watchdog timer, and brown-out detection. The ATMEGA8515-16PC is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and production continuity.

Key Parameters

Parameter	Value
Core Processor	AVR
Core Size	8-Bit
Speed	16MHz
Program Memory Size	8KB (4K x 16)
Program Memory Type	FLASH
EEPROM Size	512 x 8
RAM Size	512 x 8
Number of I/O	35
Voltage Supply (Vcc/Vdd)	4.5V ~ 5.5V
Connectivity	EBI/EMI, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type	Through Hole
Package / Case	40-DIP (0.600", 15.24mm)
Supplier Device Package	40-PDIP

Substitute Part Grouping Explanation

Substitution of the ATMEGA8515-16PC is determined by strict equivalence across the following 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)
I/O pin count (35)
Supply voltage range (4.5V ~ 5.5V)
Peripheral feature set (UART/USART, SPI, PWM, WDT, brown-out detection)
Physical package (40-DIP)

The ATMEGA8515-16PU qualifies as a direct substitute based on identical electrical specifications and pinout compatibility. The primary distinction lies in packaging format (tube vs. ceramic DIP) and product lifecycle status.

Parameter Comparison

Parameter	ATMEGA8515-16PC	ATMEGA8515-16PU
Manufacturer	Microchip Technology	Microchip Technology
Core Processor	AVR	AVR
Core Size	8-Bit	8-Bit
Speed	16MHz	16MHz
Program Memory Size	8KB (4K x 16)	8KB (4K x 16)
Program Memory Type	FLASH	FLASH
EEPROM Size	512 x 8	512 x 8
RAM Size	512 x 8	512 x 8
Number of I/O	35	35
Voltage Supply (Vcc/Vdd)	4.5V ~ 5.5V	4.5V ~ 5.5V
Connectivity	EBI/EMI, SPI, UART/USART	EBI/EMI, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type	Through Hole	Through Hole
Package / Case	40-DIP (0.600", 15.24mm)	40-DIP (0.600", 15.24mm)
Supplier Device Package	40-PDIP	40-PDIP
Product Status	Obsolete	Active
Operating Temperature	0°C ~ 70°C (TA)	-40°C ~ 85°C (TA)
RoHS Status	RoHS non-compliant	ROHS3 Compliant

Engineering Selection Recommendations

The ATMEGA8515-16PU is the direct functional equivalent of the ATMEGA8515-16PC. Both devices share identical electrical specifications, pinout, and peripheral architecture, ensuring drop-in compatibility at the circuit level.

Selection between these parts should be based on the following criteria:

For new designs and production requiring regulatory compliance, the ATMEGA8515-16PU is the appropriate choice. This part carries Active product status, ROHS3 compliance certification, and an extended operating temperature range (-40°C ~ 85°C), providing superior lifecycle support and environmental compliance.

For legacy system maintenance or applications with specific thermal constraints limited to 0°C ~ 70°C operation, the ATMEGA8515-16PC remains functionally equivalent, though its Obsolete status and RoHS non-compliance status should be considered in long-term supply planning.

Packaging format differs between the two parts: the ATMEGA8515-16PC is supplied in ceramic DIP packaging, while the ATMEGA8515-16PU is supplied in tube packaging. Both are compatible with standard 40-pin DIP sockets and through-hole PCB assembly processes.

Frequently Asked Questions (FAQ)

Q: Are ATMEGA8515-16PC and ATMEGA8515-16PU pin-compatible?

A: Yes. Both devices use the 40-pin DIP package with identical pinout. Direct socket substitution is possible without circuit modification.

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

A: The suffix designates packaging format. The "C" indicates ceramic DIP packaging; the "U" indicates plastic DIP packaging supplied in tubes. Electrical specifications and functionality are identical.

Q: Can ATMEGA8515-16PU replace ATMEGA8515-16PC in existing designs?

A: Yes. The ATMEGA8515-16PU is electrically and functionally equivalent. The extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C) provides additional margin for industrial and automotive applications.

Q: Why is ATMEGA8515-16PC classified as obsolete?

A: The ATMEGA8515-16PC has reached end-of-life status. Microchip Technology continues to support the ATMEGA8515 family through the active ATMEGA8515-16PU variant.

Q: Does RoHS compliance affect functional compatibility?

A: No. RoHS compliance relates to material composition and environmental standards, not electrical function. Both parts operate identically in circuit applications.

Q: Are there memory or performance differences between these parts?

A: No. Both devices feature 8KB FLASH program memory, 512 bytes EEPROM, 512 bytes RAM, 16MHz operation, and identical peripheral sets.

Q: Which part should be selected for new production?

A: The ATMEGA8515-16PU is recommended for new designs. Active product status ensures ongoing availability, ROHS3 compliance meets current regulatory requirements, and extended temperature range supports broader application environments.

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