Infineon Technologies S25FL512SAGBHI310

Overview

S25FL512SAGBHI310 from Infineon is a 512 Mb (64 MB) SPI Multi-I/O serial NOR flash memory with 3.0 V core supply, supporting Quad and DDR read modes up to 80 MHz clock rate and 80 MBps throughput, featuring uniform 256-KB sectors, 100,000 program-erase cycles, and AEC-Q100 Grade 2 automotive qualification (–40°C to +105°C) in FBGA package.

For engineers reviewing the S25FL512SAGBHI310 datasheet, S25FL512SAGBHI310 pinout, S25FL512SAGBHI310 application, or S25FL512SAGBHI310 equivalent, key selection factors include Quad/DDR read performance, OTP security, hardware/software block protection, and automotive-grade temperature operation with 20-year data retention.

Technical Context

This device implements Infineon's 65 nm MIRRORBIT™ technology with Eclipse™ architecture, enabling high-density NOR flash with integrated ECC for single-bit error correction during programming. Its dual-voltage I/O interface supports VIO from 1.65 V to 3.6 V independent of VCC (2.7–3.6 V), allowing interoperability with low-voltage controllers.

The command set is fully compatible with S25FL-P family footprints and extends support to 32-bit addressing, CFI, SFDP, and AutoBoot functionality-enabling automatic execution of Normal or Quad Read at power-up from a preconfigured address without host intervention.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (FAC024 footprint, 4 × 6 ball array, 6 mm × 8 mm, 0.8 mm pitch, Pb-free).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar serial NOR flash memory applications.

Compared with S25FL512SAGBHI310, the SOIC variant trades mechanical ruggedness for rework flexibility, while the Winbond alternative sacrifices automotive qualification and I/O voltage flexibility for lower cost-making the Infineon FBGA part optimal for production automotive and high-reliability industrial deployments.

Availability

S25FL512SAGBHI310 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC development, and medical imaging system integration requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant sourcing.

Supply support for S25FL512SAGBHI310 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and secure microcontrollers, with leadership in automotive-grade memory and sensor solutions.

The S25FL-S family delivers high-reliability SPI NOR flash optimized for automotive firmware storage, industrial boot memory, and safety-critical embedded systems requiring AEC-Q100 qualification and long-term data integrity.

FAQ

What is the maximum clock frequency supported for Quad DDR read operations?

The S25FL512SAGBHI310 supports Quad DDR read at up to 80 MHz clock frequency, delivering 80 MBps throughput when VIO = VCC = 3.0–3.6 V. This is confirmed in the Performance Summary section of the official Infineon datasheet (Rev. *U, page 3). The device does not support higher DDR frequencies even with overclocking, as timing margins are fixed by internal logic and flash array characteristics.

Does this part support hardware write protection independent of software commands?

Yes. Pin WP# (IO2) provides hardware write protection: when held low, it disables all program and erase operations regardless of status register settings. This function is electrically enforced and remains active even if the device is reset or powered cycled, making it suitable for fail-safe firmware protection in automotive and industrial systems.

Is the 24-ball FBGA package (FAC024) lead-free and RoHS compliant?

Yes. The S25FL512SAGBHI310 uses a Pb-free, RoHS-compliant FAC024 24-ball FBGA package with matte tin finish on solder balls. This is explicitly stated in the "Packages (all Pb-free)" section of the datasheet (page 2), and the part meets JEDEC J-STD-020 moisture sensitivity level 3 (MSL3) requirements for surface-mount assembly.

Can the OTP array be programmed multiple times, or is it one-time only?

The 1024-byte OTP (One-Time Programmable) array is strictly one-time programmable: each bit can be changed from '1' to '0' only once, and no bits can be reset to '1'. Programming is performed via dedicated OTP Program commands (0x42/0x4B), and verification must be done externally-OTP contents are not erasable or modifiable after initial programming, ensuring permanent storage of keys or calibration data.