ATMEGA162V-8MI Equivalent & Substitute Parts

Part Overview

The ATMEGA162V-8MI is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 16KB FLASH program memory, 1KB RAM, and 512 bytes EEPROM. This device operates at 8MHz with a supply voltage range of 1.8V to 5.5V and is housed in a 44-VQFN (7x7) surface mount package with 35 I/O pins.

The ATMEGA162V-8MI is classified as obsolete. Identifying equivalent substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity when original inventory becomes unavailable.

Key Parameters

Parameter	Value
Core Processor	AVR
Core Size	8-Bit
Speed	8MHz
Program Memory Size	16KB (8K x 16)
Program Memory Type	FLASH
EEPROM Size	512 x 8
RAM Size	1K x 8
Voltage - Supply (Vcc/Vdd)	1.8V ~ 5.5V
Number of I/O	35
Connectivity	EBI/EMI, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount
Package / Case	44-VFQFN Exposed Pad
Supplier Device Package	44-VQFN (7x7)

Substitute Part Grouping Explanation

Substitution of the ATMEGA162V-8MI is determined by strict equivalence across the following critical parameters:

Core Architecture: AVR processor family
Memory Configuration: 16KB FLASH, 1KB RAM, 512 bytes EEPROM
Operating Frequency: 8MHz
Supply Voltage Range: 1.8V ~ 5.5V
I/O Count: 35 pins
Package Type: 44-VQFN (7x7) with exposed pad
Connectivity Interfaces: EBI/EMI, SPI, UART/USART
Peripheral Set: Brown-out Detect/Reset, POR, PWM, WDT
Temperature Range: -40°C ~ 85°C

The ATMEGA162V-8MU meets all substitution criteria. The primary difference is packaging format (Tray vs. standard packaging) and product status (Active vs. Obsolete), with improved RoHS3 compliance and updated moisture sensitivity specifications.

Parameter Comparison

Parameter	ATMEGA162V-8MI	ATMEGA162V-8MU
Manufacturer	Microchip Technology	Microchip Technology
Core Processor	AVR	AVR
Core Size	8-Bit	8-Bit
Speed	8MHz	8MHz
Program Memory Size	16KB (8K x 16)	16KB (8K x 16)
Program Memory Type	FLASH	FLASH
EEPROM Size	512 x 8	512 x 8
RAM Size	1K x 8	1K x 8
Voltage - Supply (Vcc/Vdd)	1.8V ~ 5.5V	1.8V ~ 5.5V
Number of I/O	35	35
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
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)
Mounting Type	Surface Mount	Surface Mount
Package / Case	44-VFQFN Exposed Pad	44-VFQFN Exposed Pad
Supplier Device Package	44-VQFN (7x7)	44-VQFN (7x7)
Product Status	Obsolete	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	3 (168 Hours)

Engineering Selection Recommendations

The ATMEGA162V-8MU is a direct functional equivalent to the ATMEGA162V-8MI with identical electrical and mechanical specifications. Selection between these parts should be based on the following factors:

Product Status: The ATMEGA162V-8MI is obsolete, while the ATMEGA162V-8MU is active. For new designs or long-term production requirements, the ATMEGA162V-8MU is the appropriate choice to ensure sustained availability and manufacturer support.

Compliance Requirements: The ATMEGA162V-8MU meets ROHS3 compliance standards, whereas the ATMEGA162V-8MI is RoHS non-compliant. Applications subject to RoHS regulations must use the ATMEGA162V-8MU.

Moisture Sensitivity: The ATMEGA162V-8MU has an MSL rating of 3 (168 hours), compared to MSL 1 (unlimited) for the ATMEGA162V-8MI. Storage and handling procedures must account for the reduced moisture tolerance of the substitute part.

Packaging Format: The ATMEGA162V-8MU is supplied in Tray packaging. Verify compatibility with receiving, storage, and assembly processes.

Frequently Asked Questions (FAQ)

Q: Are the ATMEGA162V-8MI and ATMEGA162V-8MU pin-compatible?

A: Yes. Both devices use the 44-VQFN (7x7) package with identical pinout, electrical characteristics, and I/O configuration. Direct substitution is possible without circuit modification.

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

A: The primary differences are product status (obsolete vs. active), RoHS compliance level, moisture sensitivity rating, and packaging format (standard vs. Tray). Electrical and functional specifications are identical.

Q: Can I use the ATMEGA162V-8MU in place of the ATMEGA162V-8MI in existing designs?

A: Yes, provided that moisture sensitivity handling procedures are implemented. The ATMEGA162V-8MU has an MSL rating of 3, requiring storage at controlled humidity levels (≤60% RH) for up to 168 hours before soldering.

Q: Why is the ATMEGA162V-8MI listed as obsolete?

A: Microchip Technology has transitioned production to the ATMEGA162V-8MU, which offers improved compliance certifications and active manufacturer support. The obsolete status indicates that the original part is no longer in active production.

Q: Are there any functional differences in memory, speed, or I/O between these parts?

A: No. Both parts have identical 16KB FLASH memory, 1KB RAM, 512 bytes EEPROM, 8MHz operating frequency, and 35 I/O pins. All connectivity interfaces and peripherals are equivalent.

Q: What should I consider when transitioning from ATMEGA162V-8MI to ATMEGA162V-8MU?

A: Verify RoHS compliance requirements for your application. Implement moisture control procedures during storage and handling due to the MSL 3 rating. Confirm compatibility with Tray packaging in your assembly workflow.

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