Infineon Technologies S70FL01GSDPMFI011

Overview

S70FL01GSDPMFI011 from Infineon is a 1 Gbit (128 Mbyte) dual-die SPI Multi-I/O flash memory with 3.0 V core supply, uniform 256-kbyte sectors, 100,000 program-erase cycles, and AEC-Q100 Grade 2 (−40°C to +105°C) qualification. It implements two stacked S25FL512S dies, each independently accessible via CS1# and CS2#, supporting Quad DDR read, QPP programming, and OTP security.

For engineers reviewing the S70FL01GSDPMFI011 datasheet, S70FL01GSDPMFI011 pinout, S70FL01GSDPMFI011 application, or S70FL01GSDPMFI011 equivalent, key selection considerations include dual-die address boundary handling, independent status/configuration register management per die, simultaneous die access limitations, and VIO pin RFU status in this variant.

Technical Context

This device integrates two identical S25FL512S flash dies in a single package, requiring separate chip select (CS1#/CS2#) control for independent operation. Each die maintains its own status register, configuration register, bank address register, and block protection logic - no cross-die synchronization is performed internally.

It supports SPI modes 0 and 3, DDR read commands (Fast DDR/Dual DDR/Quad DDR), extended 32-bit addressing, and AutoBoot execution at power-up/reset. The VIO pin is reserved-for-future-use (RFU) and not functional; I/O voltage is derived solely from VCC (2.7–3.6 V).

Key Specifications

Pinout & Package

Package: 24-ball BGA (ZSA024), 8 × 6 mm, 5 × 5 ball array, Pb-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar SPI flash memory applications.

Compared with S25FL128SAGMFI101, the S70FL01GSDPMFI011 offers die-level fault containment and flexible partitioning but adds complexity in register and timing management; versus MX25L1G45GM2I-10G, it delivers automotive-grade reliability and integrated security at the cost of VIO flexibility and broader voltage support.

Availability

S70FL01GSDPMFI011 is available at Aetrix Electronics and suitable for automotive ADAS ECUs, industrial PLCs, medical imaging systems, and avionics display modules requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for S70FL01GSDPMFI011 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 microcontrollers, with global manufacturing and quality certification to ISO/TS 16949 and IATF 16949.

The FL-S family targets high-reliability embedded systems requiring SPI flash with multi-I/O bandwidth, automotive qualification, and robust security - designed specifically for boot code, firmware, and configuration storage in safety-critical applications.

FAQ

What is the functional relationship between CS1# and CS2# on the S70FL01GSDPMFI011?

CS1# and CS2# are independent chip select inputs that enable access to separate 512 Mbit flash dies within the same package. Activating CS1# selects Die #1 only; activating CS2# selects Die #2 only. Simultaneous activation is not supported, and commands issued while one CS is active do not affect the other die's registers or memory array.

Does the S70FL01GSDPMFI011 support true 32-bit addressing across both dies?

No. While the device accepts 32-bit addresses, sequential reads cannot cross the 512 Mbyte boundary between dies. Address 0x00000000–0x07FFFFFF maps to Die #1 (CS1#), and 0x08000000–0x0FFFFFFF maps to Die #2 (CS2#). Crossing requires explicit CS deassertion/reassertion and separate read commands per die.

Is the VIO pin functional on the S70FL01GSDPMFI011?

No. Per the official datasheet (Section 7), VIO is marked "RFU" (Reserved for Future Use) and has no internal connection or functionality in this part. All I/O signaling operates from the VCC supply (2.7–3.6 V), eliminating need for a separate I/O voltage rail and simplifying power design.

How does the OTP array differ from standard flash sectors in terms of programming and lock behavior?

The 2048-byte OTP array is programmed once per byte using standard Quad Page Program commands, but after programming, bits can only be changed from '1' to '0'. Once locked via the OTP lock bit, further writes to the array are permanently disabled - even power cycling or RESET# will not restore write capability. This ensures cryptographic keys or calibration data remain immutable post-deployment.