Infineon Technologies S25FL512SDSBHI213

Overview

S25FL512SDSBHI213 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, 100,000 program-erase cycles, and AEC-Q100 Grade 2 qualification (–40°C to +105°C). It supports Quad Read up to 52 MBps, on-chip ECC, AutoBoot, and CFI/SFDP compliance for embedded boot code storage in automotive ADAS ECUs.

For engineers reviewing the S25FL512SDSBHI213 datasheet, S25FL512SDSBHI213 pinout, S25FL512SDSBHI213 application, or S25FL512SDSBHI213 equivalent, key selection criteria include Quad DDR read performance (80 MBps), OTP security (1024-byte array), sector protection granularity, industrial-plus temperature operation, and SO16 package compatibility with legacy S25FL-P footprint.

Technical Context

This device implements Infineon's 65 nm MIRRORBIT™ technology with Eclipse™ architecture, enabling true single-bit ECC correction via dedicated hardware logic without CPU intervention. Its dual-voltage I/O (VIO = 1.65–3.6 V) allows interoperability with 1.8 V or 3.3 V controllers while maintaining full 133 MHz Fast Read capability at VIO = VCC ≥ 2.7 V.

The command set supports both standard SPI modes (0/3) and DDR variants, with extended 32-bit addressing enabling seamless migration from smaller-density FL-S devices. Boot configuration is managed via status register bits and programmable AutoBoot address, eliminating external configuration pins.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (300 mil), Pb-free, RoHS-compliant, 10.16 mm × 10.16 mm body size.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL512SDSBHI213, the Cypress alternative offers identical functionality without automotive qualification, while the Winbond part trades integrated reliability features (ECC, ASP, AutoBoot) for lower cost and simpler interface-making it suitable only where host-side error management and security enforcement are already architected.

Availability

S25FL512SDSBHI213 is available at Aetrix Electronics and suitable for automotive ADAS ECUs, industrial PLCs, medical imaging boot systems, and avionics display processors requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for S25FL512SDSBHI213 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 microcontrollers, and trusted security solutions, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The FL-S family targets high-reliability embedded systems requiring fast, secure, and long-life nonvolatile storage-designed specifically for automotive, industrial, and medical applications demanding AEC-Q100 qualification and 20-year data retention.

FAQ

What is the maximum clock frequency supported in DDR mode?

The S25FL512SDSBHI213 supports up to 80 MHz DDR clock frequency, delivering 80 MBps Quad DDR read throughput when VIO = VCC = 3.0–3.6 V. This is validated per datasheet Rev. *U Section 5.5, with setup/hold timing margins meeting JEDEC JESD204B requirements for reliable double-data-rate sampling.

Does this device require external pull-up resistors on WP# and HOLD# pins?

Yes-WP# and HOLD# are active-low inputs with internal weak pull-downs only. External 4.7 kΩ pull-up resistors to VIO are required for proper deassertion during normal operation, as specified in Section 2.8 and 2.9 of the datasheet to prevent spurious write protection or hold activation due to floating states.

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

The OTP array is accessed via dedicated One-Time-Program commands (0x4B/0x42) and resides at fixed address 0x00000000 in the OTP address space. Once programmed, bits cannot be reset; protection is enforced by status register lock bits (SRWD and TBPROT) and requires Write Enable before any OTP write cycle, preventing accidental modification.

Can this flash 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, Quad Read operates at 33 MBps (66 MHz clock), and Fast Read delivers 8.25 MBps, enabling direct interfacing with 1.8 V FPGAs or ASICs without level shifters, as confirmed in Table 3 of the datasheet.