MC908AZ32AMFUE Equivalent & Substitute Parts

Part Overview

The MC908AZ32AMFUE is an 8-bit microcontroller from NXP USA Inc. in the HC08 series, featuring 32KB FLASH memory, 1KB RAM, and 512 bytes EEPROM. This device operates at 8MHz with a 64-QFP package and supports CANbus, SCI, and SPI connectivity. The part is classified as Not For New Designs, making identification of functionally equivalent alternatives essential for ongoing system support and production continuity.

Substiute Parts

MC908AZ32AMFUE

NXP USA Inc.In Stock: 849MC908AZ32AMFUE Datasheet

Current PartRFQ

DF38104HWV

Renesas Electronics CorporationIn Stock: 942DF38104HWV Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

The DF38104HWV from Renesas Electronics Corporation qualifies as a substitute based on the following alignment of critical parameters:

Matching Parameters:

• Program Memory Size: 32KB (32K x 8) FLASH
• RAM Size: 1K x 8
• Package / Case: 64-QFP (14x14)
• Mounting Type: Surface Mount
• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level: 3 (168 Hours)

Substitution Basis: Both devices share identical program memory capacity, RAM configuration, and physical package specifications. The 64-QFP package ensures pin-compatible board-level integration. Both parts meet ROHS3 compliance and identical MSL ratings, supporting equivalent handling and storage requirements.

Parameter Comparison

Engineering Selection Recommendations

The DF38104HWV is classified as Active product status, providing ongoing manufacturer support and availability compared to the MC908AZ32AMFUE's Not For New Designs status. Both devices maintain ROHS3 compliance and identical MSL ratings, ensuring equivalent environmental and regulatory standing.

The DF38104HWV offers extended voltage supply range (1.8V ~ 5.5V versus 4.5V ~ 5.5V), providing greater flexibility in power supply design. The higher operating speed (10MHz versus 8MHz) and wider temperature range capability of the MC908AZ32AMFUE (-40°C ~ 125°C) should be evaluated against application-specific thermal and timing requirements.

Differences in analog-to-digital converter configuration (15x8b versus 4x10b) and EEPROM availability require functional assessment against system requirements. Pin-level compatibility must be confirmed through detailed datasheet cross-reference before implementation.

Frequently Asked Questions (FAQ)

Q: Are MC908AZ32AMFUE and DF38104HWV pin-compatible?

A: Both devices use 64-QFP packages with 14x14mm dimensions. Pin-level compatibility requires detailed datasheet review to confirm signal assignments and functional equivalence.

Q: What are the key differences in memory configuration?

A: Both parts provide 32KB FLASH and 1KB RAM. The MC908AZ32AMFUE includes 512 bytes EEPROM; the DF38104HWV EEPROM size is not specified in available documentation.

Q: How do operating temperature ranges affect substitution?

A: The MC908AZ32AMFUE operates to 125°C; the DF38104HWV to 85°C. Applications requiring extended high-temperature operation must confirm the DF38104HWV meets thermal requirements.

Q: What is the significance of the DF38104HWV's Active product status?

A: Active status indicates ongoing manufacturer support, production availability, and technical documentation updates. The MC908AZ32AMFUE's Not For New Designs status indicates end-of-life trajectory.

Q: Do voltage supply ranges affect circuit design?

A: The DF38104HWV supports 1.8V minimum supply versus 4.5V for the MC908AZ32AMFUE. Systems designed for the lower voltage range of the DF38104HWV may require power supply redesign if substituting into existing MC908AZ32AMFUE applications.

Q: How do the analog-to-digital converters differ?

A: The MC908AZ32AMFUE provides 15 channels at 8-bit resolution; the DF38104HWV provides 4 channels at 10-bit resolution. Application-specific analog signal processing requirements must be evaluated.