Infineon Technologies S25FL512SDPBHI310

Overview

S25FL512SDPBHI310 from Infineon is a 512 Mb (64 MB) serial NOR flash memory IC 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 automotive qualification (–40°C to +105°C). It supports Quad Read at up to 52 MBps and integrates hardware ECC for single-bit error correction.

For engineers reviewing the S25FL512SDPBHI310 datasheet, S25FL512SDPBHI310 pinout, S25FL512SDPBHI310 application, or S25FL512SDPBHI310 equivalent, key selection factors include Quad DDR read performance (80 MBps), OTP security array (1024 bytes), AutoBoot capability, CFI/SFDP compliance, and dual-voltage I/O support (1.65–3.6 V).

Technical Context

This device implements Infineon's 65 nm MIRRORBIT™ technology with Eclipse™ architecture, enabling high-density nonvolatile storage with deterministic timing and low-power operation. Its SPI interface supports all four clock modes (CPOL/CPHA 0/0 and 1/1), DDR transfers, and extended 32-bit addressing - eliminating need for bank switching in large-memory applications.

The integrated control logic handles automatic ECC generation/correction during read, page programming with 512-byte buffer, and uniform sector erase. Security is enforced via hardware/software block protection, Advanced Sector Protection (ASP), and a dedicated 1024-byte one-time-programmable (OTP) array for keys or configuration data.

Key Specifications

Pinout & Package

Package: 16-pin SOIC (300 mil), Pb-free, RoHS-compliant, industrial+ temperature grade (–40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL512SDPBHI310, the Infineon-rebranded S25FL512SAGNFI101 offers identical functionality and qualification, while the Winbond W25Q512JWQI trades automotive robustness and ECC for lower voltage operation and octal flexibility - making it incompatible for certified automotive or medical use cases.

Availability

S25FL512SDPBHI310 is available at Aetrix Electronics and suitable for automotive powertrain ECUs, industrial PLCs, medical imaging subsystems, and avionics display controllers requiring stable component supply, long-life support, and AEC-Q100 compliance.

Supply support for S25FL512SDPBHI310 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, sensor, and memory solutions for automotive, industrial, and IoT markets.

The FL-S family targets high-reliability embedded systems requiring fast, secure, and scalable serial NOR flash - optimized for automotive ECUs, industrial controllers, and medical devices needing AEC-Q100 or extended temperature operation.

FAQ

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

The S25FL512SDPBHI310 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. This requires proper setup of the configuration register and DDR-compatible host controller timing.

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

Yes - the WP# pin provides hardware-based write protection for status register bits and sector protection registers. When WP# is held low, programming and erase commands targeting protected sectors are ignored, regardless of software state. This complements software-controlled Advanced Sector Protection (ASP) for layered security.

Can the AutoBoot feature be disabled or reconfigured after power-up?

AutoBoot behavior is configured via the Configuration Register (CR) bits CR[3:2] and the Boot Address Register (BAR). These registers are nonvolatile and can be rewritten using standard Write Enable and Write Status Register commands. AutoBoot remains active until explicitly disabled or redirected to a new address.

Is the 1024-byte OTP array permanently locked after programming?

The OTP array supports one-time programming per byte; once a bit is set from '1' to '0', it cannot be reset. However, the entire array is not globally locked - individual bytes may be programmed in separate operations. No fuse-blowing or permanent lock command is required, but data integrity depends on correct sequencing per datasheet Section 9.7.