ATMEGA8-16PC Equivalent & Substitute Parts

Part Overview

The ATMEGA8-16PC 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 operates at 16MHz with integrated peripherals including I2C, SPI, and UART/USART connectivity, along with brown-out detection, power-on reset, PWM, and watchdog timer functionality. The ATMEGA8-16PC is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing design support and component sourcing.

Substiute Parts

ATMEGA8-16PC

Microchip TechnologyIn Stock: 901ATMEGA8-16PC Datasheet

Current PartRFQ

ATMEGA8-16PU

Microchip TechnologyIn Stock: 5275ATMEGA8-16PU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ATMEGA8-16PC 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)
• RAM and EEPROM capacity (1K x 8 and 512 x 8 respectively)
• I/O pin count (23)
• Supply voltage range (4.5V ~ 5.5V)
• Peripheral feature set (I2C, SPI, UART/USART, brown-out detect/reset, POR, PWM, WDT)
• Package form factor (28-DIP)

The ATMEGA8-16PU meets all substitution criteria as a direct functional equivalent, with identical electrical specifications and pinout compatibility.

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA8-16PU is the direct substitute for the obsolete ATMEGA8-16PC. Both devices share identical electrical specifications, pinout, and functional capabilities. The ATMEGA8-16PU is currently in active production status with ROHS3 compliance certification, whereas the ATMEGA8-16PC is obsolete and RoHS non-compliant. The ATMEGA8-16PU operates across an extended temperature range (-40°C ~ 85°C) compared to the ATMEGA8-16PC (0°C ~ 70°C), providing broader environmental applicability. For new designs or component replacement in existing applications, the ATMEGA8-16PU is the appropriate selection.

Frequently Asked Questions (FAQ)

Q: Are ATMEGA8-16PC and ATMEGA8-16PU pin-compatible?

A: Yes. Both devices use the 28-DIP package with identical pinout and electrical characteristics. Direct socket substitution is possible without circuit modification.

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

A: The package designation suffix indicates the packaging format. The PC variant uses ceramic DIP packaging, while the PU variant uses plastic DIP packaging. Both are 28-DIP form factors with identical pin spacing and electrical performance.

Q: Can ATMEGA8-16PU be used in applications originally designed for ATMEGA8-16PC?

A: Yes. The ATMEGA8-16PU provides identical functional performance and pinout compatibility. The extended operating temperature range of the ATMEGA8-16PU (-40°C ~ 85°C versus 0°C ~ 70°C) makes it suitable for a broader range of environmental conditions.

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

A: The ATMEGA8-16PC is RoHS non-compliant, while the ATMEGA8-16PU is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the ATMEGA8-16PU is the required selection.

Q: Why is the ATMEGA8-16PC listed as obsolete?

A: The ATMEGA8-16PC has been discontinued by the manufacturer. The ATMEGA8-16PU remains in active production and is the current equivalent offering.