ATMEGA3290V-8AI Equivalent & Substitute Parts

Part Overview

The ATMEGA3290V-8AI is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 32KB FLASH memory, 2KB RAM, and 1KB EEPROM. This device integrates SPI, UART/USART, and USI connectivity with comprehensive peripherals including PWM, watchdog timer, and LCD support. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

ATMEGA3290V-8AI

Microchip TechnologyIn Stock: 1155ATMEGA3290V-8AI Datasheet

Current PartRFQ

ATMEGA3290V-8AU

Microchip TechnologyIn Stock: 5371ATMEGA3290V-8AU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATMEGA3290V-8AI is determined by strict equivalence across core functional parameters: processor architecture (AVR), memory configuration (32KB FLASH, 2KB RAM, 1KB EEPROM), clock speed (8MHz), I/O count (69 pins), connectivity interfaces (SPI, UART/USART, USI), peripheral feature set (LCD, PWM, WDT, brown-out detection), voltage supply range (1.8V ~ 5.5V), and package form factor (100-TQFP 14x14). The ATMEGA3290V-8AU meets all these criteria, differing only in packaging format (Tray vs. unspecified) and product lifecycle status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA3290V-8AU provides complete functional and electrical equivalence to the ATMEGA3290V-8AI across all core microcontroller parameters. The primary distinction lies in product lifecycle status: the ATMEGA3290V-8AU is classified as Active, whereas the ATMEGA3290V-8AI is Obsolete. Additionally, the ATMEGA3290V-8AU carries ROHS3 compliance certification, while the ATMEGA3290V-8AI is RoHS non-compliant. For new designs or systems requiring ongoing component availability and regulatory compliance, the ATMEGA3290V-8AU is the appropriate selection. Both devices share identical electrical specifications, memory architecture, peripheral configuration, and 100-TQFP package geometry, ensuring direct substitution at the circuit level.

Frequently Asked Questions (FAQ)

Q: Can ATMEGA3290V-8AU replace ATMEGA3290V-8AI in existing designs?

A: Yes. The ATMEGA3290V-8AU is electrically and functionally equivalent across all specified parameters: processor architecture, memory configuration, clock speed, I/O count, connectivity interfaces, peripheral features, voltage supply range, and package form factor. Direct substitution is supported at the circuit and firmware levels.

Q: What is the difference between ATMEGA3290V-8AI and ATMEGA3290V-8AU?

A: The devices are identical in electrical and functional specifications. Differences exist in product status (Obsolete vs. Active) and regulatory compliance (RoHS non-compliant vs. ROHS3 Compliant). The suffix designations reflect packaging and lifecycle classifications assigned by the manufacturer.

Q: Are there pin-to-pin compatibility concerns?

A: No. Both devices utilize the 100-TQFP (14x14) package with 69 I/O pins in identical configuration. Pin assignments, electrical characteristics, and signal definitions are equivalent.

Q: Does the RoHS compliance difference affect circuit functionality?

A: No. RoHS compliance is a regulatory and material composition specification that does not alter electrical performance or functional behavior. The ATMEGA3290V-8AU meets ROHS3 standards, making it suitable for applications with regulatory compliance requirements.

Q: Is firmware compatibility maintained between these parts?

A: Yes. Both devices implement the same AVR instruction set architecture, memory organization, and peripheral register definitions. Firmware compiled for the ATMEGA3290V-8AI executes identically on the ATMEGA3290V-8AU without modification.