Infineon Technologies S25FL512SAGBHB210

Overview

S25FL512SAGBHB210 from Infineon is a 512 Mb (64 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 3.0 V core supply, and uniform 256-KB sector architecture. It supports Quad Read up to 52 MBps, AutoBoot at power-up, hardware/software block protection, and internal ECC for single-bit error correction. Used in industrial control firmware storage where high reliability, fast boot, and long-term data retention are required.

For engineers reviewing the S25FL512SAGBHB210 datasheet, S25FL512SAGBHB210 pinout, S25FL512SAGBHB210 application, or S25FL512SAGBHB210 equivalent, key selection criteria include Quad DDR read performance (80 MBps), AEC-Q100 Grade 2 qualification (–40°C to +105°C), OTP security array size (1024 bytes), and SO16/FBGA package compatibility with legacy S25FL-P designs.

Technical Context

This device implements Infineon's 65 nm MIRRORBIT™ technology with Eclipse™ architecture, enabling simultaneous read-while-write operation and deterministic erase timing across all 256-KB sectors. Its dual-voltage I/O (1.65–3.6 V) and core (2.7–3.6 V) support flexible host interface integration without level-shifting.

The command set fully complies with JEDEC JESD216 SFDP v1.6 and Common Flash Interface (CFI), allowing automatic configuration discovery by boot ROMs and runtime drivers. DDR mode requires VIO ≥ 3.0 V and supports Fast/Dual/Quad Read DDR with 80 MHz clock and 80 MBps peak throughput.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (FAB024, 6 × 8 mm, 0.8 mm pitch), Pb-free, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL512SAGBHB210, the SO16 alternative offers identical functionality in legacy-compatible packaging, while the Winbond part trades advanced security and deterministic erase for lower unit cost and octal interface flexibility - making it unsuitable for AEC-Q100 or IEC 62443-certified deployments.

Availability

S25FL512SAGBHB210 is available at Aetrix Electronics and suitable for industrial PLC firmware storage, automotive ADAS boot memory, and medical imaging system update partitioning requiring stable component supply across extended product lifecycles.

Supply support for S25FL512SAGBHB210 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 memory solutions, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The FL-S family targets high-reliability embedded systems needing deterministic flash performance, integrated security, and automotive qualification - designed specifically for mission-critical boot and firmware storage in harsh environments.

FAQ

What is the maximum Quad DDR read throughput of the S25FL512SAGBHB210?

The device achieves 80 MBps Quad DDR read throughput at 80 MHz clock frequency with VIO = VCC = 3.0–3.6 V. This requires strict setup/hold timing compliance per datasheet Section 5.5 and is validated across the full industrial temperature range (–40°C to +105°C). No external DLL or phase alignment circuitry is needed - the internal timing controller manages DDR edge alignment automatically.

Does the S25FL512SAGBHB210 support hardware reset recovery without host intervention?

Yes. The RESET# pin provides asynchronous hardware reset that clears internal command state, resets all registers to default values, and forces reinitialization of the SPI interface. After RESET#, the device enters standby mode and waits for CS# assertion - no clock or command sequence is required to restore operation, enabling robust recovery from brown-out or watchdog timeout events.

How does Advanced Sector Protection (ASP) differ from standard block protection?

ASP enables password- or boot-code-triggered locking of individual 256-KB sectors, independent of status register bits. Unlike standard block protection - which locks contiguous sector ranges via SR bits - ASP allows fine-grained, dynamic sector lockdown without affecting adjacent sectors or requiring full register writes. This supports secure OTA update schemes where only modified sectors are unlocked during patching.

Can the S25FL512SAGBHB210 operate with VIO = 1.8 V while VCC = 3.3 V?

Yes. The device supports independent VIO (1.65–3.6 V) and VCC (2.7–3.6 V) supplies. At VIO = 1.8 V and VCC = 3.3 V, it maintains full Quad Read functionality at up to 66 MHz (33 MBps), compliant with JEDEC JESD216 SFDP parameter tables. All I/O pins are referenced to VIO, so level-shifting is unnecessary when interfacing with 1.8 V microcontrollers.