ATMEGA162L-8AI Equivalent & Substitute Parts

Part Overview

The ATMEGA162L-8AI is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 16KB FLASH program memory, 1KB RAM, and 512 bytes EEPROM. This device integrates essential peripherals including UART/USART, SPI, PWM, and watchdog timer functionality in a 44-TQFP surface mount package.

The ATMEGA162L-8AI carries an Obsolete product status. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for applications utilizing this microcontroller.

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
Number of I/O	35
Connectivity	EBI/EMI, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Voltage Supply Range	2.7V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Package / Case	44-TQFP (10x10)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the ATMEGA162L-8AI is determined by strict equivalence across the following critical parameters:

Core Architecture: AVR processor family
Memory Configuration: 16KB FLASH, 1KB RAM, 512 bytes EEPROM
Peripheral Set: UART/USART, SPI, EBI/EMI, PWM, WDT, Brown-out Detect/Reset, POR
I/O Count: 35 I/O pins
Package: 44-TQFP (10x10) surface mount
Operating Temperature Range: -40°C ~ 85°C
Clock Speed: 8MHz

The ATMEGA162V-8AU qualifies as a direct substitute based on identical core architecture, memory configuration, peripheral integration, I/O count, package specification, and operating temperature range. Voltage supply range differences do not preclude substitution when the application operates within the overlapping voltage window (2.7V ~ 5.5V).

Parameter Comparison

Parameter	ATMEGA162L-8AI	ATMEGA162V-8AU	Compatibility
Manufacturer	Microchip Technology	Microchip Technology	Identical
Core Processor	AVR	AVR	Identical
Core Size	8-Bit	8-Bit	Identical
Speed	8MHz	8MHz	Identical
Program Memory Size	16KB (8K x 16)	16KB (8K x 16)	Identical
Program Memory Type	FLASH	FLASH	Identical
EEPROM Size	512 x 8	512 x 8	Identical
RAM Size	1K x 8	1K x 8	Identical
Number of I/O	35	35	Identical
Connectivity	EBI/EMI, SPI, UART/USART	EBI/EMI, SPI, UART/USART	Identical
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT	Identical
Voltage Supply Range	2.7V ~ 5.5V	1.8V ~ 5.5V	Compatible (overlapping range 2.7V ~ 5.5V)
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	Identical
Package / Case	44-TQFP (10x10)	44-TQFP (10x10)	Identical
Mounting Type	Surface Mount	Surface Mount	Identical
Product Status	Obsolete	Active	Substitute is actively manufactured
RoHS Status	RoHS non-compliant	ROHS3 Compliant	Substitute meets current RoHS requirements

Engineering Selection Recommendations

The ATMEGA162V-8AU is the qualified substitute for the obsolete ATMEGA162L-8AI based on the following engineering criteria:

Functional Equivalence: Both devices share identical core architecture, memory configuration, peripheral integration, I/O count, and package specification. No firmware or hardware redesign is required for direct substitution.

Product Status: The ATMEGA162V-8AU maintains Active product status with verified programmability and established supply chain availability. The ATMEGA162L-8AI is Obsolete, making the substitute essential for ongoing production support.

Compliance: The ATMEGA162V-8AU is ROHS3 Compliant and REACH Unaffected, meeting current regulatory requirements. The original part is RoHS non-compliant.

Voltage Compatibility: The ATMEGA162V-8AU supports an extended voltage supply range (1.8V ~ 5.5V) compared to the original (2.7V ~ 5.5V). Applications operating within the original voltage window (2.7V ~ 5.5V) experience no functional impact.

Packaging: Both devices are supplied in 44-TQFP (10x10) surface mount packages with identical pinout and mechanical specifications.

Frequently Asked Questions (FAQ)

Q: Can the ATMEGA162V-8AU be used as a direct replacement for the ATMEGA162L-8AI without circuit modifications?

A: Yes. Both devices are pin-compatible with identical pinout, package dimensions, and electrical characteristics within the overlapping voltage range (2.7V ~ 5.5V). No circuit redesign is required.

Q: What is the primary reason for substitution?

A: The ATMEGA162L-8AI is Obsolete. The ATMEGA162V-8AU is an Active product with established supply chain availability and current manufacturing support.

Q: Are there differences in voltage supply requirements?

A: The ATMEGA162V-8AU supports a lower minimum voltage (1.8V) compared to the original part (2.7V). For applications operating at 2.7V or higher, both devices are functionally equivalent. Applications requiring operation below 2.7V must use the ATMEGA162V-8AU.

Q: Is the ATMEGA162V-8AU RoHS compliant?

A: Yes. The ATMEGA162V-8AU is ROHS3 Compliant. The original ATMEGA162L-8AI is RoHS non-compliant.

Q: Are the packages identical?

A: Yes. Both devices use 44-TQFP (10x10) surface mount packages with identical pinout, lead spacing, and mechanical dimensions.

Q: What is the inventory status of the substitute part?

A: The ATMEGA162V-8AU has 5,000,100 pieces in stock as New Original inventory, ensuring reliable supply chain availability.

Q: Are firmware or software changes required for substitution?

A: No. Both devices share identical instruction set architecture and peripheral register definitions. Existing firmware requires no modification.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company