Infineon Technologies S25FL512SAGBHBA13

Overview

S25FL512SAGBHBA13 from Infineon is a 512 Mb (64 MB) serial NOR flash memory with SPI Multi-I/O interface, 3.0 V core supply, uniform 256-KB sectors, and integrated hardware ECC. It supports Quad Read up to 52 MBps, AutoBoot at power-up, and operates across –40°C to +105°C (Industrial Plus). Used in boot code storage for embedded microcontrollers and firmware images in industrial gateways.

For engineers reviewing the S25FL512SAGBHBA13 datasheet, S25FL512SAGBHBA13 pinout, S25FL512SAGBHBA13 application, or S25FL512SAGBHBA13 equivalent, key selection factors include Quad DDR read performance (80 MBps), OTP security (1024-byte array), AEC-Q100 Grade 2 qualification, and SO16 package compatibility with legacy S25FL-A/K/P families.

Technical Context

This FL-S series flash implements Infineon's 65 nm MIRRORBIT™ technology with Eclipse™ architecture, enabling single-bit error correction via on-die ECC logic and supporting both SDR and DDR SPI protocols. It uses a 32-bit extended addressing mode and maintains command-set and footprint compatibility with prior S25FL-A, S25FL-K, and S25FL-P families.

The device features dual voltage domains: core supply (VCC = 2.7–3.6 V) and versatile I/O supply (VIO = 1.65–3.6 V), allowing interoperability with 1.8 V or 3.3 V host controllers. Its AutoBoot function executes preconfigured Normal or Quad Read commands at reset, simplifying boot sequence design without external logic.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (300 mil), Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL512SAGBHBA13, the Infineon FBGA variant offers identical functionality in smaller form factor, while the Winbond part trades security and automotive qualification for lower unit cost and broader voltage tolerance - making it viable only in non-safety-critical contexts.

Availability

S25FL512SAGBHBA13 is available at Aetrix Electronics and suitable for industrial PLCs, automotive ADAS ECUs, medical imaging control boards, and smart grid communication modules requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for S25FL512SAGBHBA13 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 memory solutions, with global R&D and manufacturing facilities.

The FL-S flash product line targets high-reliability embedded systems requiring deterministic boot, long-term data integrity, and automotive-grade qualification - designed specifically for firmware storage in safety-critical and mission-critical applications.

FAQ

What is the maximum clock frequency supported in DDR mode?

The S25FL512SAGBHBA13 supports Fast Read DDR, Dual Read DDR, and Quad Read DDR at up to 80 MHz clock frequency, delivering 20 MBps, 40 MBps, and 80 MBps respectively when VIO = VCC = 3.0–3.6 V. DDR timing requires strict setup/hold compliance per datasheet Section 5.5.

Does this part support XIP (execute-in-place) operation?

Yes - the device supports XIP when interfaced with compatible QSPI controllers (e.g., ARM Cortex-M7/M33, NXP i.MX RT series) that implement continuous read mode and proper cache coherency. Quad and DDR read modes are recommended for optimal instruction fetch throughput.

How is the 1024-byte OTP array accessed and protected?

The OTP array is accessed via dedicated JEDEC-standard One-Time-Program commands (0x4B, 0x42) and locked permanently after programming. Once written, OTP contents cannot be erased or modified. Access requires Write Enable and specific unlock sequences defined in Section 9.7 of the datasheet.

Can the HOLD# and WP# pins be left unconnected in a simple application?

No - HOLD# must be pulled high (via ≥10 kΩ resistor) to prevent unintended suspension of SPI transfers; WP# must be pulled high or actively driven to disable hardware write protection. Leaving either floating may cause erratic behavior or accidental sector locking during noise events.