AT45DB081D-MU-SL383 Equivalent & Substitute Parts

Part Overview

The AT45DB081D-MU-SL383 is an 8Mbit FLASH memory IC with SPI interface operating at 66 MHz, manufactured by Renesas Electronics Corporation. This component is classified as obsolete, making substitute parts necessary for new designs and ongoing production requirements. The part is packaged in 8-VDFN (6x5) surface mount configuration with supply voltage range of 2.7V to 3.6V and operating temperature range of -40°C to 85°C.

Substiute Parts

AT45DB081D-MU-SL383

Renesas Electronics CorporationIn Stock: 761AT45DB081D-MU-SL383 Datasheet

Current PartRFQ

AT45DB081E-MHN-T

Renesas Electronics CorporationIn Stock: 72631AT45DB081E-MHN-T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the AT45DB081D-MU-SL383 is based on the following critical parameters:

• Memory Capacity: 8Mbit (non-negotiable)
• Memory Format & Technology: FLASH (non-negotiable)
• Memory Interface: SPI (non-negotiable)
• Memory Organization: 264 Bytes x 4096 pages (non-negotiable)
• Operating Temperature Range: -40°C ~ 85°C (non-negotiable)
• Base Product Number: AT45DB081 (same family)

The substitute part AT45DB081E-MHN-T maintains identical memory capacity, organization, interface, and temperature specifications. Differences exist in clock frequency (85 MHz vs. 66 MHz), package variant (8-UDFN vs. 8-VDFN), voltage supply range (1.7V ~ 3.6V vs. 2.7V ~ 3.6V), and product status (Active vs. Obsolete).

Parameter Comparison

Engineering Selection Recommendations

The AT45DB081E-MHN-T is the designated substitute for the obsolete AT45DB081D-MU-SL383. Selection of this substitute is supported by:

• Product Status: AT45DB081E-MHN-T maintains Active status, ensuring continued availability and manufacturing support
• Compliance: AT45DB081E-MHN-T is RoHS3 Compliant and REACH Unaffected, meeting current regulatory requirements
• Functional Equivalence: Identical memory capacity, organization, interface, and operating temperature range ensure direct functional compatibility
• Enhanced Specifications: Higher clock frequency (85 MHz) and extended voltage supply range (1.7V ~ 3.6V) provide operational flexibility
• Improved Reliability: Lower Moisture Sensitivity Level (MSL 1 vs. MSL 3) indicates superior moisture resistance

Package geometry differences (8-VDFN 6x5 vs. 8-UDFN 5x6) require PCB layout verification. Both packages are 8-pin surface mount with exposed pad configuration.

Frequently Asked Questions (FAQ)

Q: Can AT45DB081E-MHN-T directly replace AT45DB081D-MU-SL383 in existing designs?

A: Functional replacement is supported for applications where the 8-UDFN (5x6) package footprint can be accommodated. PCB layout modifications are necessary due to package geometry differences. Pin configuration and SPI interface remain identical.

Q: What are the key differences between these parts?

A: Primary differences are package type (8-VDFN vs. 8-UDFN), clock frequency (66 MHz vs. 85 MHz), minimum supply voltage (2.7V vs. 1.7V), and product status (Obsolete vs. Active). Memory capacity, organization, and interface specifications are identical.

Q: Is the higher clock frequency of AT45DB081E-MHN-T compatible with systems designed for 66 MHz operation?

A: Yes. The 85 MHz specification indicates maximum operating frequency. Systems designed for 66 MHz operation will function correctly with AT45DB081E-MHN-T, as the part supports operation at lower frequencies within its specified range.

Q: What does the lower Moisture Sensitivity Level (MSL 1) mean for AT45DB081E-MHN-T?

A: MSL 1 indicates unlimited shelf life under controlled storage conditions, compared to MSL 3 (168 hours) for the original part. This provides extended storage capability and reduced risk of moisture-related failures during manufacturing.

Q: Are there packaging considerations for volume production?

A: AT45DB081E-MHN-T is supplied in Tape & Reel (TR) format, suitable for automated assembly. The original AT45DB081D-MU-SL383 was supplied in bulk format. TR packaging is standard for production environments and offers handling efficiency.

Q: What is the voltage supply compatibility?

A: AT45DB081E-MHN-T operates across 1.7V to 3.6V, providing broader compatibility than the original part (2.7V to 3.6V). Systems designed for the original 2.7V to 3.6V range will operate without modification.