ATMEGA169V-8AI Equivalent & Substitute Parts

Part Overview

The ATMEGA169V-8AI is an 8-bit AVR microcontroller manufactured by Microchip Technology, featuring 16KB FLASH memory, 1KB RAM, and 512 bytes 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 compatible substitutes essential for ongoing system support and new design implementations.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Core Processor	AVR
Core Size	8-Bit
Speed	8MHz
Program Memory Size	16KB (8K x 16)
Program Memory Type	FLASH
RAM Size	1K x 8
EEPROM Size	512 x 8
Voltage Supply (Vcc/Vdd)	1.8V ~ 5.5V
Number of I/O	54
Data Converters	A/D 8x10b
Connectivity	SPI, UART/USART, USI
Peripherals	Brown-out Detect/Reset, LCD, POR, PWM, WDT
Operating Temperature	-40°C ~ 85°C (TA)
Package / Case	64-TQFP (14x14)
Mounting Type	Surface Mount
Moisture Sensitivity Level (MSL)	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the ATMEGA169V-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
Operating Frequency: 8MHz
Voltage Supply Range: 1.8V ~ 5.5V
I/O Count: 54 pins
Peripheral Set: SPI, UART/USART, USI, PWM, WDT, LCD, Brown-out Detect/Reset, POR
Data Conversion: A/D 8x10b
Package: 64-TQFP (14x14)
Temperature Range: -40°C ~ 85°C

The ATMEGA169PV-8AU meets all parametric requirements for direct substitution. Differences exist only in product status (active vs. obsolete), packaging format (tray vs. unspecified), and regulatory compliance certifications.

Parameter Comparison

Parameter	ATMEGA169V-8AI	ATMEGA169PV-8AU	Match
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	✓
RAM Size	1K x 8	1K x 8	✓
EEPROM Size	512 x 8	512 x 8	✓
Voltage Supply (Vcc/Vdd)	1.8V ~ 5.5V	1.8V ~ 5.5V	✓
Number of I/O	54	54	✓
Data Converters	A/D 8x10b	A/D 8x10b	✓
Connectivity	SPI, UART/USART, USI	SPI, UART/USART, USI	✓
Peripherals	Brown-out Detect/Reset, LCD, POR, PWM, WDT	Brown-out Detect/Reset, LCD, POR, PWM, WDT	✓
Operating Temperature	-40°C ~ 85°C (TA)	-40°C ~ 85°C (TA)	✓
Package / Case	64-TQFP (14x14)	64-TQFP (14x14)	✓
Mounting Type	Surface Mount	Surface Mount	✓
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	✓
Product Status	Obsolete	Active	—
RoHS Status	RoHS non-compliant	ROHS3 Compliant	—

Engineering Selection Recommendations

The ATMEGA169PV-8AU is the direct parametric equivalent for the ATMEGA169V-8AI. Selection between these parts should be based on the following criteria:

ATMEGA169V-8AI: Use only when legacy system maintenance requires exact original part matching or when existing inventory must be consumed. Product status is obsolete with no active manufacturing support.

ATMEGA169PV-8AU: Recommended for all new designs and ongoing production. This part maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance. Inventory availability is significantly higher (27,700 pcs vs. 2,578 pcs).

The substitution is electrically and mechanically transparent. No design modifications, firmware changes, or board layout adjustments are required when transitioning between these parts.

Frequently Asked Questions (FAQ)

Q: Are ATMEGA169V-8AI and ATMEGA169PV-8AU pin-compatible?

A: Yes. Both devices use the 64-TQFP (14x14) package with identical pinout, voltage specifications, and I/O configuration. Direct socket substitution is possible without PCB modifications.

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

A: The primary differences are product status (obsolete vs. active), RoHS compliance certification (non-compliant vs. ROHS3 compliant), packaging format (unspecified vs. tray), and current inventory levels. All functional and electrical parameters are identical.

Q: Can I use ATMEGA169PV-8AU as a drop-in replacement in existing designs?

A: Yes. The ATMEGA169PV-8AU is a direct parametric substitute with no design changes required. Firmware, PCB layout, and system integration remain unchanged.

Q: Why is the ATMEGA169V-8AI classified as obsolete?

A: Product obsolescence is determined by the manufacturer. The ATMEGA169PV-8AU represents the active continuation of this microcontroller family with maintained support and compliance certifications.

Q: Are there any temperature or voltage operating differences?

A: No. Both parts operate across the identical temperature range (-40°C ~ 85°C) and voltage supply range (1.8V ~ 5.5V). Thermal and electrical characteristics are equivalent.

Q: What is the significance of RoHS3 compliance on the ATMEGA169PV-8AU?

A: ROHS3 compliance indicates adherence to current Restriction of Hazardous Substances regulations. For applications requiring regulatory compliance documentation, the ATMEGA169PV-8AU is the appropriate selection.

Q: Is firmware recompilation necessary when switching parts?

A: No. Both devices share identical instruction set architecture, memory organization, and peripheral interfaces. Existing firmware requires no modification.

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