AT25DN256-SSHFGP-B Equivalent & Substitute Parts

Part Overview

The AT25DN256-SSHFGP-B is a 256Kbit FLASH memory IC manufactured by Renesas Electronics Corporation, designed for SPI interface applications requiring non-volatile data storage. This device operates at 104 MHz clock frequency and is packaged in 8-SOIC surface mount configuration. The part is currently in active production status with 1161 units available in new original stock. Substitute parts are identified when equivalent electrical and mechanical specifications are met, enabling procurement flexibility and supply chain continuity.

Substiute Parts

AT25DN256-SSHFGP-B

Renesas Electronics CorporationIn Stock: 1241AT25DN256-SSHFGP-B Datasheet

Current PartRFQ

AT25DF256-SSHN-T

Renesas Electronics CorporationIn Stock: 8169AT25DF256-SSHN-T Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AT25DN256-SSHFGP-B is determined by the following critical parameters:

• Memory capacity (256Kbit) and organization (32K x 8)
• SPI interface protocol
• Clock frequency (104 MHz minimum)
• Package type (8-SOIC with identical physical dimensions)
• Surface mount mounting type
• Operating temperature range (-40°C ~ 85°C)
• RoHS3 compliance status

The AT25DF256-SSHN-T meets all substitution criteria. Both parts share identical memory capacity, organization, interface protocol, clock frequency, package dimensions, mounting type, and temperature range. Both maintain ROHS3 compliance. Differences in supply voltage range and page write cycle time do not preclude substitution when the application voltage requirements fall within the overlapping range (2.3V ~ 3.6V).

Parameter Comparison

Engineering Selection Recommendations

Both the AT25DN256-SSHFGP-B and AT25DF256-SSHN-T are active production parts from Renesas Electronics Corporation with ROHS3 compliance and identical regulatory status (REACH Unaffected, ECCN EAR99). Selection between these parts should be based on application-specific requirements:

The AT25DN256-SSHFGP-B is supplied in Tube packaging, while the AT25DF256-SSHN-T is supplied in Tape & Reel format. The AT25DF256-SSHN-T offers extended lower voltage operation (1.65V minimum versus 2.3V minimum) and higher inventory availability (8069 units versus 1161 units). The AT25DN256-SSHFGP-B provides faster page write performance (1.75ms versus 2.5ms).

Frequently Asked Questions (FAQ)

Q: Can AT25DF256-SSHN-T replace AT25DN256-SSHFGP-B in existing designs?

A: Yes. Both parts are functionally equivalent for SPI FLASH memory applications requiring 256Kbit capacity at 104 MHz. Electrical and mechanical specifications are compatible when operating within the overlapping voltage range of 2.3V to 3.6V.

Q: What is the primary difference between these two parts?

A: The main differences are packaging format (Tube versus Tape & Reel), supply voltage minimum specification (2.3V versus 1.65V), and page write cycle time (1.75ms versus 2.5ms). The AT25DF256-SSHN-T supports lower voltage operation and has greater stock availability.

Q: Are both parts suitable for industrial temperature applications?

A: Yes. Both parts operate across the -40°C to 85°C temperature range and maintain ROHS3 compliance, meeting industrial application requirements.

Q: Does packaging format affect electrical performance?

A: No. Tube and Tape & Reel packaging formats do not affect electrical performance or functional characteristics. The difference is in supply and handling format only.

Q: Can I use AT25DF256-SSHN-T if my application requires 1.5V operation?

A: The AT25DF256-SSHN-T supports operation down to 1.65V, which exceeds a 1.5V requirement. The AT25DN256-SSHFGP-B minimum is 2.3V and would not be suitable for 1.5V applications.