ATXMEGA32D3-MN Equivalent & Substitute Parts

Part Overview

The ATXMEGA32D3-MN is an AVR XMEGA D3 microcontroller manufactured by Microchip Technology, featuring 8/16-bit processing capability with 32KB FLASH memory and 64-QFN packaging. This device is classified as Active product status and is suitable for embedded applications requiring moderate processing power with integrated connectivity options. Identifying equivalent and substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and accommodate packaging or operational temperature requirements specific to application needs.

Key Parameters

Parameter	Value
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
Data Converters	A/D 16x12b
Number of I/O	50
Connectivity	I2C, IrDA, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Package / Case	64-VFQFN Exposed Pad
Mounting Type	Surface Mount
RoHS Status	ROHS3 Compliant

Substitute Part Grouping Explanation

Substitution of the ATXMEGA32D3-MN is determined by strict equivalence across the following critical parameters: core processor architecture (AVR), core size (8/16-Bit), processing speed (32MHz), program memory capacity (32KB FLASH), EEPROM size (1K x 8), RAM size (4K x 8), supply voltage range (1.6V ~ 3.6V), data converter specifications (A/D 16x12b), I/O count (50), connectivity interfaces (I2C, IrDA, SPI, UART/USART), peripheral features (Brown-out Detect/Reset, POR, PWM, WDT), and physical package format (64-VFQFN Exposed Pad).

The ATXMEGA32D3-MH qualifies as a direct substitute based on identical electrical specifications and package geometry. Differences are limited to packaging format (Tray versus standard packaging) and operating temperature range, which do not affect functional equivalence for applications within the overlapping temperature specification.

Parameter Comparison

Parameter	ATXMEGA32D3-MN	ATXMEGA32D3-MH
Manufacturer	Microchip Technology	Microchip Technology
Series	AVR® XMEGA® D3	AVR® XMEGA® D3
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
Data Converters	A/D 16x12b	A/D 16x12b
Number of I/O	50	50
Connectivity	I2C, IrDA, SPI, UART/USART	I2C, IrDA, SPI, UART/USART
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
Package / Case	64-VFQFN Exposed Pad	64-VFQFN Exposed Pad
Mounting Type	Surface Mount	Surface Mount
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 85°C (TA)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)
Product Status	Active	Active

Engineering Selection Recommendations

Both the ATXMEGA32D3-MN and ATXMEGA32D3-MH are Active product status devices manufactured by Microchip Technology and maintain ROHS3 compliance. Selection between these parts is determined by operating temperature requirements and packaging format availability.

The ATXMEGA32D3-MN supports an extended operating temperature range of -40°C to 105°C, making it suitable for applications requiring operation at elevated temperatures. The ATXMEGA32D3-MH operates within -40°C to 85°C and is supplied in Tray packaging format.

For applications operating within the -40°C to 85°C temperature window, either part is functionally equivalent. For applications requiring sustained operation above 85°C, the ATXMEGA32D3-MN is the appropriate selection. Packaging format selection (standard versus Tray) depends on procurement and assembly workflow requirements.

Frequently Asked Questions (FAQ)

Q: Are ATXMEGA32D3-MN and ATXMEGA32D3-MH electrically identical?

A: Yes. Both devices share identical electrical specifications including processor architecture, memory configuration, clock speed, supply voltage range, I/O count, and peripheral feature set. Differences are limited to operating temperature range and packaging format.

Q: Can ATXMEGA32D3-MH be used in place of ATXMEGA32D3-MN?

A: ATXMEGA32D3-MH is a direct substitute for ATXMEGA32D3-MN in applications where the operating temperature does not exceed 85°C. If your application requires operation above 85°C, the ATXMEGA32D3-MN is required.

Q: What is the significance of the packaging format difference?

A: The ATXMEGA32D3-MN uses standard packaging, while ATXMEGA32D3-MH is supplied in Tray format. This affects handling, storage, and assembly processes but does not impact electrical performance or physical pin configuration.

Q: Are both parts RoHS compliant?

A: Yes. Both ATXMEGA32D3-MN and ATXMEGA32D3-MH are ROHS3 compliant and maintain identical Moisture Sensitivity Level (MSL) ratings of 3 (168 Hours).

Q: What determines substitution eligibility for XMEGA D3 microcontrollers?

A: Substitution is determined by matching core processor type (AVR), core size (8/16-Bit), clock frequency (32MHz), memory specifications (32KB FLASH, 1K x 8 EEPROM, 4K x 8 RAM), supply voltage range (1.6V ~ 3.6V), I/O count (50), connectivity interfaces, peripheral features, and physical package format (64-VFQFN Exposed Pad). Operating temperature range and packaging format may differ without affecting functional equivalence within specified operating conditions.

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