AT45DB011D-MH-Y Equivalent & Substitute Parts

Part Overview

The AT45DB011D-MH-Y is a 1Mbit SPI FLASH memory IC manufactured by Renesas Electronics Corporation, designed for non-volatile data storage applications requiring serial peripheral interface communication. This component features a 66 MHz clock frequency and operates across a 2.7V to 3.6V supply voltage range in an 8-UDFN surface mount package.

The AT45DB011D-MH-Y has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this memory IC.

Substiute Parts

AT45DB011D-MH-Y

Renesas Electronics CorporationIn Stock: 975AT45DB011D-MH-Y Datasheet

Current PartRFQ

AT45DB021E-MHN-Y

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

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT45DB011D-MH-Y is determined by the following critical parameters:

• Memory Interface: Must be SPI to maintain firmware and hardware compatibility
• Package Type: Must be 8-UDFN Exposed Pad (5x6) for PCB layout and assembly compatibility
• Mounting Type: Must be Surface Mount to align with assembly processes
• Operating Temperature Range: Must support -40°C ~ 85°C minimum
• Voltage Supply Range: Must be compatible with or encompass the 2.7V ~ 3.6V requirement

The AT45DB021E-MHN-Y qualifies as a manufacturer-recommended substitute. While it features increased memory capacity (2Mbit versus 1Mbit) and higher clock frequency (70 MHz versus 66 MHz), it maintains identical package specifications, SPI interface compatibility, and overlapping voltage supply parameters. The expanded memory organization (264 Bytes x 1024 pages) and improved write cycle performance do not preclude substitution in applications where the original 1Mbit capacity was specified, provided system firmware and memory addressing schemes support the larger capacity.

Parameter Comparison

Engineering Selection Recommendations

The AT45DB021E-MHN-Y is the manufacturer-recommended substitute for the obsolete AT45DB011D-MH-Y. Selection of this substitute is supported by the following factors:

• Product Status: The substitute maintains Active product status, ensuring continued availability and manufacturing support from Renesas Electronics Corporation
• Compliance: The AT45DB021E-MHN-Y maintains ROHS3 compliance and REACH unaffected status, consistent with regulatory requirements
• Package Compatibility: Identical 8-UDFN (5x6) package specification ensures direct PCB compatibility without layout modifications
• Interface Compatibility: SPI interface equivalence preserves firmware and hardware communication protocols
• Thermal and Electrical Specifications: Operating temperature range and expanded voltage supply range (1.65V ~ 3.6V) provide enhanced operational flexibility

Frequently Asked Questions (FAQ)

Q: Can the AT45DB021E-MHN-Y be used as a direct replacement for the AT45DB011D-MH-Y?

A: Yes, the AT45DB021E-MHN-Y is the manufacturer-recommended substitute. Both components share identical package specifications (8-UDFN Exposed Pad 5x6), SPI interface, and operating temperature range. The substitute features increased memory capacity and improved performance characteristics.

Q: What are the key differences between these two parts?

A: The primary differences are memory capacity (1Mbit versus 2Mbit), memory organization (512 pages versus 1024 pages), clock frequency (66 MHz versus 70 MHz), page write cycle time (4ms versus 3ms), and voltage supply range (2.7V~3.6V versus 1.65V~3.6V). The substitute offers enhanced performance and lower minimum operating voltage.

Q: Are there any package or pinout differences?

A: No. Both components use the 8-UDFN Exposed Pad package with 5x6mm dimensions. Pinout and package footprint are identical, enabling direct PCB substitution without layout modifications.

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

A: Both the AT45DB011D-MH-Y and AT45DB021E-MHN-Y have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

Q: Does the substitute support the same SPI communication protocol?

A: Yes. Both components implement SPI interface for serial communication. The substitute's higher clock frequency (70 MHz) is backward compatible with systems designed for 66 MHz operation.