AT25DN512C-SSHFGP-B Equivalent & Substitute Parts

Part Overview

The AT25DN512C-SSHFGP-B is a 512Kbit FLASH memory IC manufactured by Renesas Electronics Corporation, featuring SPI interface with 104 MHz clock frequency in 8-SOIC surface mount packaging. This non-volatile memory device is designed for embedded systems requiring reliable data storage with fast serial communication. The part is currently in active production status with 860 units available in new original condition. Substitute parts are identified to address packaging format availability, extended voltage range requirements, or inventory optimization while maintaining core functional compatibility.

Key Parameters

Parameter	Value
Memory Size	512Kbit
Memory Organization	64K x 8
Memory Interface	SPI
Clock Frequency	104 MHz
Voltage Supply Range	2.3V ~ 3.6V
Operating Temperature	-40°C ~ 85°C (TC)
Package Type	8-SOIC (0.154", 3.90mm Width)
Mounting Type	Surface Mount
Write Cycle Time - Word	8µs
Write Cycle Time - Page	1.75ms
RoHS Status	ROHS3 Compliant
Moisture Sensitivity Level	1 (Unlimited)

Substitute Part Grouping Explanation

Substitution eligibility is determined by strict parameter matching across core electrical and mechanical specifications. The following parameters must remain constant or within acceptable ranges for direct substitution:

Memory capacity: 512Kbit
Memory organization: 64K x 8
Interface protocol: SPI
Clock frequency: 104 MHz
Package type: 8-SOIC (0.154", 3.90mm Width)
Mounting type: Surface Mount
Operating temperature range: -40°C ~ 85°C (TC)
RoHS compliance: ROHS3 Compliant
MSL rating: 1 (Unlimited)

Acceptable variations include:

Packaging format (Tube, Tape & Reel, Cut Tape & Digi-Reel)
Voltage supply range (may be extended to lower minimum voltage)
Write cycle timing (page write time may vary)
Programmable verification status

Parameter Comparison

Part Number	Manufacturer	Memory Size	Memory Organization	Interface	Clock Frequency	Voltage Supply	Write Cycle - Word / Page	Packaging	Inventory	Product Status
AT25DN512C-SSHFGP-B	Renesas Electronics	512Kbit	64K x 8	SPI	104 MHz	2.3V ~ 3.6V	8µs / 1.75ms	Tube	860 Pcs	Active
AT25DF512C-SSHN-T	Renesas Electronics	512Kbit	64K x 8	SPI	104 MHz	1.65V ~ 3.6V	8µs / 4.6ms	Tape & Reel	4389 Pcs	Active
AT25DN512C-SSHF-B	Renesas Electronics	512Kbit	64K x 8	SPI	104 MHz	2.3V ~ 3.6V	8µs / 1.75ms	Tube	6580 Pcs	Active
AT25DN512C-SSHF-T	Renesas Electronics	512Kbit	64K x 8	SPI	104 MHz	2.3V ~ 3.6V	8µs / 1.75ms	Cut Tape & Digi-Reel	12300 Pcs	Active
AT25XE512C-SSHN-T	Renesas Electronics	512Kbit	64K x 8	SPI	104 MHz	1.65V ~ 3.6V	12µs / 3ms	Tape & Reel	5016 Pcs	Active

Engineering Selection Recommendations

All listed substitute parts maintain active production status with ROHS3 compliance and MSL rating 1 (Unlimited), ensuring regulatory and environmental compatibility with the original AT25DN512C-SSHFGP-B.

AT25DN512C-SSHF-B and AT25DN512C-SSHF-T are direct functional equivalents with identical electrical specifications and write cycle timing. Selection between these and the original part is determined by packaging format requirements: Tube packaging for AT25DN512C-SSHFGP-B and AT25DN512C-SSHF-B, or Cut Tape & Digi-Reel for AT25DN512C-SSHF-T. AT25DN512C-SSHF-T offers the highest inventory availability at 12300 units.

AT25DF512C-SSHN-T extends the minimum supply voltage to 1.65V, enabling operation in low-voltage applications. Page write cycle time increases to 4.6ms. This part is available in Tape & Reel packaging with verified programmable status and 4389 units in stock.

AT25XE512C-SSHN-T provides extended voltage range (1.65V ~ 3.6V) with modified write cycle timing (12µs word, 3ms page). This variant is suitable for applications requiring lower voltage operation but with slightly longer write cycles.

Frequently Asked Questions (FAQ)

Q: Can AT25DF512C-SSHN-T replace AT25DN512C-SSHFGP-B in all applications?

A: AT25DF512C-SSHN-T is functionally compatible for applications operating within the 2.3V ~ 3.6V range. The extended lower voltage limit (1.65V) does not affect compatibility in this overlap region. Page write cycle time increases from 1.75ms to 4.6ms; applications with strict timing requirements must account for this difference.

Q: What is the difference between packaging formats (Tube, Tape & Reel, Cut Tape & Digi-Reel)?

A: Packaging format affects handling, storage, and automated assembly compatibility. Tube packaging is suitable for manual handling and small-volume applications. Tape & Reel and Cut Tape & Digi-Reel formats are optimized for high-volume automated pick-and-place assembly. All formats contain identical die and electrical specifications.

Q: Is AT25XE512C-SSHN-T suitable for designs currently using AT25DN512C-SSHFGP-B?

A: AT25XE512C-SSHN-T maintains core memory capacity, organization, interface, and clock frequency compatibility. However, write cycle timing differs: word write remains 8µs, but page write extends from 1.75ms to 3ms. Applications with page write timing constraints must evaluate this specification change. The extended voltage range (1.65V minimum) provides additional operational flexibility.

Q: Are all substitute parts ROHS3 compliant?

A: All listed substitute parts are ROHS3 compliant with MSL rating 1 (Unlimited), matching the original AT25DN512C-SSHFGP-B specifications.

Q: Which substitute offers the best inventory availability?

A: AT25DN512C-SSHF-T provides the highest inventory with 12300 units in stock, compared to 860 units for the original part. This variant maintains identical electrical specifications and write cycle timing while offering Cut Tape & Digi-Reel packaging format.

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