ATXMEGA32D4-MN Equivalent & Substitute Parts

Part Overview

The ATXMEGA32D4-MN is an AVR XMEGA D4 series microcontroller manufactured by Microchip Technology, featuring 8/16-bit processing capability with 32KB FLASH memory and 32MHz operation. This surface-mount device in 44-VQFN packaging is actively produced and widely used in embedded applications requiring moderate processing power and integrated connectivity interfaces.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging formats are required for supply chain optimization, or when design flexibility permits selection from qualified alternatives within the same product family.

Key Parameters

Parameter	Value
Manufacturer	Microchip Technology
Series	AVR® XMEGA® D4
Core Processor	AVR
Core Size	8/16-Bit
Speed	32MHz
Program Memory Size	32KB (16K x 16)
Program Memory Type	FLASH
EEPROM Size	1K x 8
RAM Size	4K x 8
Voltage Supply (Vcc/Vdd)	1.6V ~ 3.6V
Number of I/O	34
Connectivity	I2C, IrDA, SPI, UART/USART
Data Converters	A/D 12x12b
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type	Surface Mount
Package	44-VQFN (7x7)
Product Status	Active
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the ATXMEGA32D4-MN is determined by strict equivalence across the following critical parameters:

Mandatory Matching Parameters:

Manufacturer: Microchip Technology
Series: AVR® XMEGA® D4
Core Processor: AVR
Core Size: 8/16-Bit
Speed: 32MHz
Program Memory: 32KB FLASH (16K x 16)
EEPROM: 1K x 8
RAM: 4K x 8
Voltage Supply: 1.6V ~ 3.6V
I/O Count: 34
Connectivity: I2C, IrDA, SPI, UART/USART
Data Converters: A/D 12x12b
Peripherals: Brown-out Detect/Reset, POR, PWM, WDT
Package: 44-VQFN (7x7)
Mounting Type: Surface Mount

Allowable Variation Parameters:

Packaging format (Tube, Tray, Tape & Reel)
Operating temperature range (within device capability)
Programmable verification status

The ATXMEGA32D4-MH qualifies as a direct substitute based on identical electrical specifications and package geometry, with variation only in packaging format and operating temperature specification.

Parameter Comparison

Parameter	ATXMEGA32D4-MN	ATXMEGA32D4-MH
Manufacturer	Microchip Technology	Microchip Technology
Series	AVR® XMEGA® D4	AVR® XMEGA® D4
Core Processor	AVR	AVR
Core Size	8/16-Bit	8/16-Bit
Speed	32MHz	32MHz
Program Memory Size	32KB (16K x 16)	32KB (16K x 16)
EEPROM Size	1K x 8	1K x 8
RAM Size	4K x 8	4K x 8
Voltage Supply (Vcc/Vdd)	1.6V ~ 3.6V	1.6V ~ 3.6V
Number of I/O	34	34
Connectivity	I2C, IrDA, SPI, UART/USART	I2C, IrDA, SPI, UART/USART
Data Converters	A/D 12x12b	A/D 12x12b
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
Mounting Type	Surface Mount	Surface Mount
Package	44-VQFN (7x7)	44-VQFN (7x7)
Packaging Format	Not specified	Tray
Operating Temperature	-40°C ~ 105°C	-40°C ~ 85°C
Product Status	Active	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

Both ATXMEGA32D4-MN and ATXMEGA32D4-MH are Active status products manufactured by Microchip Technology with identical ROHS3 compliance and MSL ratings. Selection between these parts should be based on the following criteria:

ATXMEGA32D4-MN is suitable for applications requiring extended operating temperature range up to 105°C or when packaging format flexibility is required.

ATXMEGA32D4-MH is suitable for standard industrial temperature applications (-40°C to 85°C) and is available in Tray packaging format. This part carries MFR recommended designation and verified programmable status.

Both parts are electrically and mechanically interchangeable within their respective temperature specifications. PCB layout, footprint, and signal routing remain identical between the two variants.

Frequently Asked Questions (FAQ)

Q: Are ATXMEGA32D4-MN and ATXMEGA32D4-MH pin-compatible?

A: Yes. Both parts use identical 44-VQFN (7x7) package geometry with 34 I/O pins. PCB footprints and pinout assignments are identical.

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

A: The primary differences are packaging format (Tray for MH) and maximum operating temperature specification (105°C for MN versus 85°C for MH). Electrical performance and memory specifications are identical.

Q: Can ATXMEGA32D4-MH be used in applications rated for -40°C to 105°C operation?

A: No. ATXMEGA32D4-MH is specified for -40°C to 85°C operation. Applications requiring 105°C operation must use ATXMEGA32D4-MN.

Q: Are both parts ROHS3 compliant?

A: Yes. Both ATXMEGA32D4-MN and ATXMEGA32D4-MH meet ROHS3 compliance requirements with MSL rating 3 (168 Hours).

Q: What packaging formats are available?

A: ATXMEGA32D4-MH is supplied in Tray format. ATXMEGA32D4-MN packaging format is not specified in available documentation.

Q: Can these parts be used interchangeably in existing designs?

A: Interchangeability is conditional on operating temperature requirements. If the application operates within -40°C to 85°C, both parts are functionally equivalent. Applications requiring extended temperature operation must use ATXMEGA32D4-MN.

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