AT25DF021A-MHN-Y Equivalent & Substitute Parts

Part Overview

The AT25DF021A-MHN-Y is a 2Mbit Serial Peripheral Interface (SPI) FLASH memory IC manufactured by Renesas Electronics Corporation. This non-volatile memory device operates at 104 MHz and is packaged in an 8-UDFN (5x6) surface mount configuration with exposed pad. The part is currently in active production status with 884 units available in inventory.

Substitute parts are identified when design requirements allow for alternative electrical or mechanical specifications while maintaining functional compatibility within the application's operational constraints.

Substiute Parts

AT25DF021A-MHN-Y

Renesas Electronics CorporationIn Stock: 978AT25DF021A-MHN-Y Datasheet

Current PartRFQ

AT25XE021A-MHN-T

Renesas Electronics CorporationIn Stock: 6361AT25XE021A-MHN-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT25DF021A-MHN-Y is determined by the following critical parameters:

Mandatory Compatibility Parameters:

• Memory Size: 2Mbit (fixed requirement)
• Memory Organization: 256K x 8 (fixed requirement)
• Memory Interface: SPI (fixed requirement)
• Supply Voltage Range: 1.65V ~ 3.6V (fixed requirement)
• Operating Temperature Range: -40°C ~ 85°C (fixed requirement)
• Package Type: 8-UDFN Exposed Pad (5x6) (fixed requirement)

Variable Parameters Allowing Substitution:

• Clock Frequency: May be lower than 104 MHz if application timing permits
• Write Cycle Time: May be longer if application timing permits
• Moisture Sensitivity Level: May be lower (more favorable) than MSL 3
• Packaging Format: May differ (Tray vs. Tape & Reel) based on procurement requirements

The AT25XE021A-MHN-T meets all mandatory compatibility parameters while offering alternative specifications in clock frequency and packaging format.

Parameter Comparison

Engineering Selection Recommendations

Both the AT25DF021A-MHN-Y and AT25XE021A-MHN-T are active production parts from Renesas Electronics Corporation with ROHS3 compliance and REACH unaffected status.

Selection between these parts depends on application-specific requirements:

Select AT25DF021A-MHN-Y when:

• Maximum clock frequency of 104 MHz is required for SPI communication
• Minimum page write cycle time of 2.5ms is necessary
• Tray packaging format is specified for assembly processes

Select AT25XE021A-MHN-T when:

• Clock frequency of 70 MHz is sufficient for application timing requirements
• Page write cycle time of 5ms is acceptable
• Tape & Reel packaging format is required for automated assembly
• Lower moisture sensitivity level (MSL 1) provides handling advantages in humid environments

Both parts share identical memory capacity, organization, interface protocol, voltage specifications, and temperature operating range, ensuring functional interchangeability within the specified parameter constraints.

Frequently Asked Questions (FAQ)

Q: Can AT25XE021A-MHN-T replace AT25DF021A-MHN-Y in all applications?

A: Substitution is valid only if the application can operate with 70 MHz clock frequency instead of 104 MHz and accept 5ms page write cycle time instead of 2.5ms. Both parts maintain identical memory capacity, voltage range, and temperature specifications.

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

A: Tray packaging is used for manual handling and lower-volume assembly processes. Tape & Reel (TR) packaging is designed for automated pick-and-place assembly equipment. The electrical and functional specifications of the IC remain identical; only the physical packaging format differs.

Q: Does Moisture Sensitivity Level (MSL) affect part functionality?

A: MSL rating indicates the maximum time a component can be exposed to moisture at specified temperature and humidity conditions before soldering. MSL 1 (Unlimited) provides greater handling flexibility compared to MSL 3 (168 Hours). Both parts function identically once soldered; MSL affects storage and handling procedures only.

Q: Are both parts RoHS compliant?

A: Yes, both AT25DF021A-MHN-Y and AT25XE021A-MHN-T are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What determines if a substitute part is compatible?

A: Compatibility is determined by matching memory size (2Mbit), memory organization (256K x 8), SPI interface, supply voltage range (1.65V ~ 3.6V), operating temperature range (-40°C ~ 85°C), and package type (8-UDFN Exposed Pad 5x6). Clock frequency and write cycle time may be lower in substitutes if application timing permits.