S99-50355 Equivalent & Substitute Parts

Part Overview

The S99-50355 is a 512Mbit NOR Flash memory IC manufactured by Infineon Technologies, featuring SPI Quad I/O interface with 133 MHz clock frequency and 6.5 ns access time in a 16-SOIC surface mount package. This part is classified as Last Time Buy, indicating end-of-life status. Identifying equivalent substitute parts is necessary to ensure design continuity and maintain supply chain reliability for applications requiring this memory technology.

Substiute Parts

S99-50355

Infineon TechnologiesIn Stock: 3436S99-50355 Datasheet

Current PartRFQ

S25FL512SAGMFIR10

Infineon TechnologiesIn Stock: 1569S25FL512SAGMFIR10 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the S99-50355 is based on strict equivalence across the following critical parameters:

• Memory capacity: 512Mbit (64M x 8 organization)
• Memory technology: FLASH - NOR architecture
• Interface protocol: SPI with Quad I/O capability
• Clock frequency: 133 MHz minimum
• Access time: 6.5 ns or faster
• Voltage supply range: 2.7V ~ 3.6V compatibility
• Package: 16-SOIC form factor with identical pin configuration
• Operating temperature range: -40°C ~ 85°C minimum

The S25FL512SAGMFIR10 meets all these criteria and is identified as the manufacturer-recommended substitute from Infineon Technologies' FL-S series.

Parameter Comparison

Engineering Selection Recommendations

The S25FL512SAGMFIR10 is the direct functional equivalent and manufacturer-recommended substitute for the S99-50355. Selection of this substitute is supported by:

• Identical electrical specifications across all critical parameters
• Active product status ensuring long-term availability and supply chain stability
• ROHS3 compliance certification, meeting current environmental and regulatory requirements
• Same package footprint and pin configuration enabling direct PCB compatibility
• Manufacturer continuity within Infineon Technologies' FL-S memory series

The transition from S99-50355 (Last Time Buy) to S25FL512SAGMFIR10 (Active) is appropriate for new designs and production continuity.

Frequently Asked Questions (FAQ)

Q: Can S25FL512SAGMFIR10 be used as a direct replacement for S99-50355 on existing PCBs?

A: Yes. Both parts share identical 16-SOIC package dimensions, pin configuration, and electrical specifications. No PCB modifications are required.

Q: Are the memory capacities and interface protocols identical?

A: Yes. Both parts provide 512Mbit capacity with 64M x 8 organization and SPI Quad I/O interface at 133 MHz clock frequency.

Q: What is the difference in product status between these parts?

A: S99-50355 is Last Time Buy (end-of-life), while S25FL512SAGMFIR10 is Active. The active status ensures continued availability and support.

Q: Does S25FL512SAGMFIR10 meet current compliance standards?

A: Yes. S25FL512SAGMFIR10 is ROHS3 compliant and REACH unaffected, meeting current environmental regulations.

Q: Are the voltage supply and operating temperature ranges compatible?

A: Yes. Both parts operate at 2.7V ~ 3.6V supply voltage and -40°C ~ 85°C temperature range.

Q: What packaging options are available for S25FL512SAGMFIR10?

A: S25FL512SAGMFIR10 is supplied in Tray packaging, suitable for automated assembly processes.