AT45DB041D-MU Equivalent & Substitute Parts

Part Overview

The AT45DB041D-MU is a 4Mbit SPI FLASH memory IC manufactured by Renesas Electronics Corporation, designed for non-volatile data storage applications requiring SPI interface communication. This device operates at 66 MHz with a supply voltage range of 2.7V to 3.6V and is housed in an 8-VDFN package with exposed pad. The part is currently classified as obsolete, making identification of compatible substitute components essential for ongoing system support and new design implementations.

Substiute Parts

AT45DB041D-MU

Renesas Electronics CorporationIn Stock: 1916AT45DB041D-MU Datasheet

Current PartRFQ

AT45DB041E-MHN-T

Renesas Electronics CorporationIn Stock: 34007AT45DB041E-MHN-T Datasheet

DirectRFQ

AT45DB041E-MHN-Y

Renesas Electronics CorporationIn Stock: 974AT45DB041E-MHN-Y Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AT45DB041D-MU is determined by the following critical parameters: memory capacity (4Mbit), memory format (FLASH), interface protocol (SPI), memory organization (264 Bytes x 2048 pages), and operating temperature range (-40°C ~ 85°C). The substitute parts AT45DB041E-MHN-T and AT45DB041E-MHN-Y maintain identical memory specifications and functional compatibility while offering enhanced performance characteristics. Both substitutes share the same base product number (AT45DB041) and are manufactured by Renesas Electronics Corporation, confirming functional equivalence at the core memory architecture level.

Parameter Comparison

Engineering Selection Recommendations

The AT45DB041E-MHN-T and AT45DB041E-MHN-Y are functionally equivalent substitutes for the obsolete AT45DB041D-MU. Both substitute parts maintain active product status with ROHS3 compliance and REACH unaffected certification. The AT45DB041E-MHN-T is supplied in Tape & Reel packaging with 33,975 units in stock, while the AT45DB041E-MHN-Y is supplied in Tray packaging with 922 units in stock. Selection between these two substitutes should be based on packaging requirements and inventory availability for your application.

Frequently Asked Questions (FAQ)

Q: Can AT45DB041E-MHN-T and AT45DB041E-MHN-Y be used interchangeably with AT45DB041D-MU?

A: Yes. Both substitute parts maintain identical memory capacity (4Mbit), memory organization (264 Bytes x 2048 pages), SPI interface, and operating temperature range (-40°C ~ 85°C). The substitutes offer improved performance with 85 MHz clock frequency versus 66 MHz, extended voltage supply range (1.65V ~ 3.6V versus 2.7V ~ 3.6V), and faster page write cycle time (3ms versus 4ms).

Q: What is the difference between AT45DB041E-MHN-T and AT45DB041E-MHN-Y?

A: Both parts are electrically and functionally identical. The primary difference is packaging format: AT45DB041E-MHN-T is supplied in Tape & Reel (TR) format, while AT45DB041E-MHN-Y is supplied in Tray format. Selection depends on your assembly process requirements and volume needs.

Q: Are there package compatibility considerations between the main part and substitutes?

A: The main part AT45DB041D-MU uses 8-VDFN (6x5) packaging, while both substitutes use 8-UDFN (5x6) packaging. Both are 8-pin surface mount packages with exposed pads. PCB layout and footprint verification is required before implementation.

Q: What compliance certifications apply to the substitute parts?

A: Both AT45DB041E-MHN-T and AT45DB041E-MHN-Y are ROHS3 compliant and REACH unaffected. Moisture sensitivity level is improved to MSL 1 (Unlimited) compared to the main part's MSL 3 (168 Hours).