ATMEGA162-16AI Equivalent & Substitute Parts

Part Overview

The ATMEGA162-16AI is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 16KB of FLASH program memory, 1KB of RAM, and 512 bytes of EEPROM. This device operates at 16MHz with a supply voltage range of 2.7V to 5.5V and is housed in a 44-TQFP package. The ATMEGA162-16AI is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing design support, maintenance, and production continuity.

Substiute Parts

ATMEGA162-16AI

Microchip TechnologyIn Stock: 5000195ATMEGA162-16AI Datasheet

Current PartRFQ

ATMEGA162-16AU

Microchip TechnologyIn Stock: 16209ATMEGA162-16AU Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ATMEGA162-16AI 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 (16KB FLASH)
• EEPROM and RAM specifications (512 x 8 and 1K x 8 respectively)
• I/O count (35 pins)
• Connectivity interfaces (EBI/EMI, SPI, UART/USART)
• Peripheral feature set (Brown-out Detect/Reset, POR, PWM, WDT)
• Supply voltage range (2.7V ~ 5.5V)
• Operating temperature range (-40°C ~ 85°C)
• Package type and form factor (44-TQFP, 10x10mm)

The ATMEGA162-16AU meets all these criteria and serves as a direct functional equivalent. The primary distinction between these parts is product status and packaging configuration.

Parameter Comparison

Engineering Selection Recommendations

The ATMEGA162-16AU is the direct substitute for the ATMEGA162-16AI. Both devices are electrically and functionally identical across all specified parameters. Selection between these parts should be based on the following factors:

The ATMEGA162-16AU is recommended for new designs and ongoing production due to its active product status and ROHS3 compliance. The ATMEGA162-16AI, being obsolete and RoHS non-compliant, is suitable only for legacy system maintenance where existing inventory is available or where regulatory compliance is not a requirement.

Packaging configuration differs only in supplier delivery format: the ATMEGA162-16AU is supplied in Tray packaging, while the ATMEGA162-16AI does not specify a standard packaging type. This distinction does not affect electrical performance or pin compatibility.

Frequently Asked Questions (FAQ)

Q: Are the ATMEGA162-16AI and ATMEGA162-16AU pin-compatible?

A: Yes. Both devices use the 44-TQFP (10x10mm) package with identical pinout and electrical characteristics. Direct PCB substitution is possible without layout modifications.

Q: What is the primary difference between these two parts?

A: The ATMEGA162-16AU is an active product with ROHS3 compliance, while the ATMEGA162-16AI is obsolete and RoHS non-compliant. All electrical and functional specifications are identical.

Q: Can I use the ATMEGA162-16AU in place of the ATMEGA162-16AI in existing designs?

A: Yes. The ATMEGA162-16AU is a direct functional equivalent and can be used as a drop-in replacement without design changes.

Q: What does "obsolete" product status mean for the ATMEGA162-16AI?

A: Obsolete status indicates that Microchip Technology has discontinued manufacturing and support for this part number. Existing inventory may be available through authorized distributors, but long-term availability is not guaranteed.

Q: Are there any compliance differences between these parts?

A: Yes. The ATMEGA162-16AU is ROHS3 compliant, while the ATMEGA162-16AI is RoHS non-compliant. For applications subject to RoHS regulations, the ATMEGA162-16AU must be used.

Q: Do these parts have different supply voltage requirements?

A: No. Both parts operate across the identical supply voltage range of 2.7V to 5.5V and have the same operating temperature range of -40°C to 85°C.