AT45DB021E-MHN2B-T Equivalent & Substitute Parts

Part Overview

The AT45DB021E-MHN2B-T is a 2Mbit Serial Peripheral Interface (SPI) FLASH memory IC manufactured by Renesas Electronics Corporation. This non-volatile memory device operates at 70 MHz and is housed in an 8-UDFN (5x6) surface mount package with exposed pad. The part is actively produced and ROHS3 compliant, making it suitable for embedded systems, data logging, and firmware storage applications. Substitute parts are identified to address inventory availability, packaging preferences, or supply chain continuity requirements while maintaining full electrical and mechanical compatibility.

Substiute Parts

AT45DB021E-MHN2B-T

Renesas Electronics CorporationIn Stock: 1981AT45DB021E-MHN2B-T Datasheet

Current PartRFQ

AT45DB021E-MHN-T

Renesas Electronics CorporationIn Stock: 11658AT45DB021E-MHN-T Datasheet

MFR RecommendedRFQ

AT45DB021E-MHN-Y

Renesas Electronics CorporationIn Stock: 1561AT45DB021E-MHN-Y Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AT45DB021E-MHN2B-T are qualified based on strict electrical and mechanical parameter matching. All substitute candidates must maintain identical specifications across the following critical parameters: memory size (2Mbit), memory format (FLASH), interface protocol (SPI), clock frequency (70 MHz), memory organization (264 Bytes x 1024 pages), write cycle times (8µs word, 3ms page), supply voltage range (1.65V ~ 3.6V), operating temperature range (-40°C ~ 85°C TC), package type (8-UDFN Exposed Pad 5x6), and surface mount mounting type. Substitutes may differ only in packaging format (Tape & Reel versus Tray) and inventory availability, as these factors do not affect electrical performance or board-level compatibility. All identified substitutes are manufactured by Renesas Electronics Corporation and maintain identical product status, RoHS compliance, and moisture sensitivity ratings.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AT45DB021E-MHN2B-T, AT45DB021E-MHN-T, and AT45DB021E-MHN-Y—are electrically and mechanically interchangeable at the board level. Selection between these parts should be based on packaging and supply requirements rather than technical performance criteria.

AT45DB021E-MHN-T is the manufacturer-recommended primary substitute, offering identical electrical specifications and Tape & Reel packaging format matching the original part. This option provides maximum inventory availability (11,592 pcs) and maintains supply chain consistency for high-volume production environments.

AT45DB021E-MHN-Y is qualified as an alternative substitute with identical electrical specifications but supplied in Tray packaging format. This option is suitable for applications where Tray packaging is acceptable or preferred, with moderate inventory availability (1,521 pcs).

All parts maintain Active product status, ROHS3 compliance, and REACH Unaffected designation, confirming regulatory and environmental suitability for current and future applications.

Frequently Asked Questions (FAQ)

Q: Can AT45DB021E-MHN-T be used as a direct replacement for AT45DB021E-MHN2B-T?

A: Yes. Both parts are electrically and mechanically identical, with all critical parameters matching exactly. The only difference is packaging format (both use Tape & Reel). No circuit modifications or firmware changes are required.

Q: What is the difference between Tape & Reel and Tray packaging?

A: Tape & Reel packaging is used for automated pick-and-place assembly lines and high-volume production. Tray packaging is used for manual assembly, lower-volume production, or component storage. Both formats contain the same component with identical electrical performance. The choice depends on manufacturing process requirements, not technical compatibility.

Q: Is AT45DB021E-MHN-Y compatible with designs using AT45DB021E-MHN2B-T?

A: Yes. AT45DB021E-MHN-Y is electrically and mechanically identical to the original part. The only difference is Tray packaging instead of Tape & Reel. This part is suitable for applications where Tray format is acceptable.

Q: Are all three parts ROHS3 compliant?

A: Yes. AT45DB021E-MHN2B-T, AT45DB021E-MHN-T, and AT45DB021E-MHN-Y are all ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements.

Q: What is the moisture sensitivity level for these parts?

A: All three parts have Moisture Sensitivity Level (MSL) 1 (Unlimited), indicating no moisture sensitivity restrictions during storage or handling.

Q: Can these parts be used interchangeably in production?

A: Yes, provided the manufacturing process can accommodate the packaging format. AT45DB021E-MHN-T and AT45DB021E-MHN2B-T both use Tape & Reel and are directly interchangeable in automated assembly. AT45DB021E-MHN-Y uses Tray packaging and is suitable for manual or alternative assembly processes.