Cypress Semiconductor Corp S25FL127SABBHIT03

Overview

S25FL127SABBHIT03 from Infineon is a 128 Mb (16 MB) serial NOR flash memory IC with SPI Multi-I/O interface, 3.0 V core supply, and 64 KB uniform sector erase capability. It supports Quad Read at up to 54 MBps, features internal hardware ECC for single-bit error correction, and includes 1024-byte OTP array for secure configuration storage. Used in industrial embedded boot code storage requiring AEC-Q100 Grade 2 qualification.

For engineers reviewing the S25FL127SABBHIT03 datasheet, S25FL127SABBHIT03 pinout, S25FL127SABBHIT03 application, or S25FL127SABBHIT03 equivalent, this page provides verified package mapping (8-lead SOIC), confirmed SPI-MIO timing modes (0 and 3), hybrid/uniform erase options, AutoBoot functionality, and real-world endurance (100,000 P/E cycles) and retention (20 years) specs.

Technical Context

This device implements Infineon's 65-nm MIRRORBIT™ Eclipse architecture with dual-plane read capability and configurable addressing (24-/32-bit). Its SPI-MIO interface supports simultaneous dual/quad I/O data transfers using IO0–IO3 pins under clock polarity/phase modes 0 and 3, enabling high-throughput boot code fetch.

The integrated CFI and SFDP (JESD216B) tables provide standardized configuration discovery, while hardware reset (RESET#) and hold (HOLD#) signals enable deterministic power-up sequencing and suspend/resume during active transfers - critical for automotive ECU firmware integrity.

Key Specifications

Pinout & Package

Package: 8-lead SOIC (208 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 S25FL127SABBHIT03, the Cypress alternative matches functionally but omits automotive qualification, while the Winbond part sacrifices AutoBoot, ASP, and OTP - making the Infineon device uniquely suited for safety-critical, self-booting systems requiring long-term firmware integrity.

Availability

S25FL127SABBHIT03 is available at Aetrix Electronics and suitable for automotive ECU design, industrial PLC firmware storage, ADAS domain controllers, and medical imaging system boot memory requiring stable component supply and AEC-Q100 compliance.

Supply support for S25FL127SABBHIT03 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 secure memory solutions.

The FL-S family targets high-reliability embedded systems needing fast, secure, and long-life serial NOR flash - especially automotive, industrial, and medical applications demanding AEC-Q100 qualification and hardware-based data protection.

FAQ

What is the maximum clock frequency supported for Quad Read operations?

The S25FL127SABBHIT03 supports Quad Read at up to 108 MHz, delivering 54 MBps throughput. This is validated across the full industrial temperature range (–40°C to +105°C) and requires proper PCB layout with matched trace lengths and controlled impedance (50 Ω ±10%) for all four I/O lines.

Does this device require external hardware ECC circuitry?

No. The device integrates hardware-based ECC that automatically detects and corrects single-bit errors during read operations. No external logic or software intervention is needed - correction occurs transparently within the flash controller, preserving system-level timing predictability.

Can the AutoBoot address be changed after initial programming?

Yes. The AutoBoot start address is stored in a dedicated configuration register (CR3[7:0]) and can be modified via standard Write Enable + Write Status Register commands. Changes persist across power cycles and do not require OTP programming - enabling flexible field updates to boot location.

Is the 8-lead SOIC package RoHS-compliant and lead-free?

Yes. The S25FL127SABBHIT03 in 8-lead SOIC (208 mil) is fully RoHS-compliant and Pb-free, meeting JEDEC J-STD-020 moisture sensitivity level 3 (MSL-3) and qualifying for standard reflow profiles including peak temperatures up to 260°C.