ATXMEGA32C4-AN Equivalent & Substitute Parts

Part Overview

The ATXMEGA32C4-AN is an AVR XMEGA C4 microcontroller manufactured by Microchip Technology, featuring 8/16-bit processing architecture with 32KB FLASH memory and 32MHz operation. This device is classified as Active product status and is suitable for embedded applications requiring moderate processing capability with integrated connectivity options including I2C, IrDA, SPI, UART/USART, and USB interfaces.

Identifying equivalent and substitute parts is necessary when the primary part number becomes unavailable, when alternative packaging formats are required for manufacturing processes, or when inventory constraints necessitate component alternatives that maintain functional and electrical compatibility.

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	34
Connectivity	I2C, IrDA, SPI, UART/USART, USB
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT
Package / Case	44-TQFP (10x10)
Mounting Type	Surface Mount
Series	AVR® XMEGA® C4
RoHS Status	ROHS3 Compliant
MSL Rating	3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the ATXMEGA32C4-AN is determined by strict equivalence across the following critical parameters:

Core processor architecture (AVR)
Core size (8/16-Bit)
Operating frequency (32MHz)
Memory configuration (32KB FLASH, 1K x 8 EEPROM, 4K x 8 RAM)
Voltage supply range (1.6V ~ 3.6V)
I/O count (34 pins)
Connectivity interfaces (I2C, IrDA, SPI, UART/USART, USB)
Package type (44-TQFP)
Mounting technology (Surface Mount)

The ATXMEGA32C4-AU qualifies as a direct substitute based on identical electrical specifications and mechanical compatibility. The primary distinction between these parts is the packaging format (tape and reel versus alternative packaging) and the operating temperature range specification.

Parameter Comparison

Parameter	ATXMEGA32C4-AN	ATXMEGA32C4-AU
Manufacturer	Microchip Technology	Microchip Technology
Series	AVR® XMEGA® C4	AVR® XMEGA® C4
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	34	34
Connectivity	I2C, IrDA, SPI, UART/USART, USB	I2C, IrDA, SPI, UART/USART, USB
Peripherals	Brown-out Detect/Reset, POR, PWM, WDT	Brown-out Detect/Reset, POR, PWM, WDT
Package / Case	44-TQFP (10x10)	44-TQFP (10x10)
Mounting Type	Surface Mount	Surface Mount
Operating Temperature	-40°C ~ 105°C (TA)	-40°C ~ 85°C (TA)
RoHS Status	ROHS3 Compliant	ROHS3 Compliant
MSL Rating	3 (168 Hours)	3 (168 Hours)
Product Status	Active	Active

Engineering Selection Recommendations

Both the ATXMEGA32C4-AN and ATXMEGA32C4-AU maintain Active product status from Microchip Technology and are ROHS3 compliant with identical MSL ratings. Selection between these parts should be based on the following criteria:

The ATXMEGA32C4-AN supports an extended operating temperature range of -40°C to 105°C, making it suitable for applications requiring operation at elevated ambient temperatures. The ATXMEGA32C4-AU operates within the range of -40°C to 85°C, appropriate for standard industrial and commercial temperature environments.

Packaging format differs between the two parts: the ATXMEGA32C4-AN is supplied in standard packaging, while the ATXMEGA32C4-AU is supplied in tape and reel format. Tape and reel packaging is optimized for high-volume automated assembly processes, whereas standard packaging accommodates lower-volume or manual assembly operations.

Both parts are electrically and functionally equivalent across all specified parameters including memory configuration, I/O count, connectivity interfaces, and peripheral features.

Frequently Asked Questions (FAQ)

Q: Are ATXMEGA32C4-AN and ATXMEGA32C4-AU pin-compatible?

A: Yes. Both parts use the 44-TQFP (10x10) package with identical pin assignments, I/O configuration (34 pins), and electrical characteristics. They are mechanically and electrically interchangeable at the board level.

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

A: The primary differences are operating temperature range and packaging format. The ATXMEGA32C4-AN operates to 105°C and uses standard packaging. The ATXMEGA32C4-AU operates to 85°C and is supplied in tape and reel format for automated assembly.

Q: Can I use ATXMEGA32C4-AU in an application designed for ATXMEGA32C4-AN?

A: Substitution is valid only if the application's maximum ambient operating temperature does not exceed 85°C. If the design requires operation above 85°C, the ATXMEGA32C4-AN is required.

Q: Are both parts RoHS compliant?

A: Yes. Both ATXMEGA32C4-AN and ATXMEGA32C4-AU are ROHS3 compliant with identical MSL ratings of 3 (168 Hours).

Q: What memory specifications are identical between these parts?

A: Both parts feature 32KB FLASH program memory (16K x 16), 1K x 8 EEPROM, and 4K x 8 RAM. Memory configuration is identical and interchangeable.

Q: Do both parts support the same connectivity interfaces?

A: Yes. Both parts provide identical connectivity: I2C, IrDA, SPI, UART/USART, and USB interfaces with 34 total I/O pins.

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