Infineon Technologies S70FL01GSDSMFB010

Overview

S70FL01GSDSMFB010 from Infineon is a 1 Gbit (128 Mbyte) dual-die SPI flash memory with Multi-I/O interface, 3.0 V core supply, and uniform 256-kbyte sector erase granularity. It supports Normal/Fast/Dual/Quad/DDR read modes, 512-byte page programming, and delivers 1.5 Mbytes/s write and 0.5 Mbytes/s erase throughput. Used in industrial and automotive boot code storage where high-density serial flash with AEC-Q100 Grade 2 qualification is required.

For engineers reviewing the S70FL01GSDSMFB010 datasheet, S70FL01GSDSMFB010 pinout, S70FL01GSDSMFB010 application, or S70FL01GSDSMFB010 equivalent, key selection criteria include dual-die addressing behavior, independent CS1#/CS2# control per die, Quad I/O timing compliance, OTP array size (2048 bytes), and AEC-Q100 Grade 2 (−40°C to +105°C) qualification for automotive ECUs.

Technical Context

The S70FL01GSDSMFB010 implements a dual-die stack of two S25FL512S 512 Mbit dies sharing one SOIC-16 package, each with independent status/configuration registers, sector protection, and chip select lines (CS1# and CS2#). It requires separate command issuance per die for programming, erase, and register access.

It supports SPI modes 0 and 3, DDR read/write, 32-bit extended addressing, and AutoBoot from preselected address on power-up/reset. VIO is RFU - only VCC (2.7–3.6 V) and VSS are active supplies; all I/O pins tolerate 1.65–3.6 V.

Key Specifications

Pinout & Package

Package: 16-lead SOIC (300 mils), Pb-free, industrial+ and automotive qualified.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL128SAGMFI000, the S70FL01GSDSMFB010 provides 8× density and automotive qualification but requires explicit dual-die command sequencing; versus MX25L1G45GMI-12G, it offers pin-compatible SOIC-16 upgrade path and robust sector protection, at the cost of lower peak bandwidth.

Availability

S70FL01GSDSMFB010 is available at Aetrix Electronics and suitable for automotive ECU development, industrial PLC firmware deployment, and medical imaging system production requiring stable component supply with AEC-Q100 Grade 2 qualification and long-term lifecycle support.

Supply support for S70FL01GSDSMFB010 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 non-volatile memory solutions, with global manufacturing and quality certifications including IATF 16949.

The FL-S family targets high-reliability embedded systems requiring SPI flash with extended temperature operation, security features, and automotive qualification - designed specifically for boot code, firmware, and configuration storage in safety-critical applications.

FAQ

What is the function of CS1# and CS2# on the S70FL01GSDSMFB010?

CS1# and CS2# are independent active-low chip select inputs that enable access to the first and second 512 Mbit die respectively. Both cannot be asserted simultaneously; each die operates autonomously with its own status register, configuration register, and sector protection settings. This dual-select architecture allows seamless 1 Gbit addressing while maintaining die-level isolation for reliability.

Does the S70FL01GSDSMFB010 support true 32-bit addressing across both dies?

No - the device uses two independent 27-bit address spaces (128 Mbyte each), mapped separately under CS1# and CS2#. Sequential reads across die boundaries require explicit switching between chip selects; there is no hardware-assisted wraparound or unified 32-bit linear address bus. The CFI reports total density but does not enable transparent cross-die addressing.

Can the OTP array be reprogrammed after initial programming?

No - the 2048-byte OTP (One-Time Programmable) array is permanently programmed using high-voltage pulses; bits can only be changed from '1' to '0', and no erase mechanism exists. It is intended for immutable data such as cryptographic keys, device identifiers, or calibration constants that must survive field updates and power cycles.

Is VIO pin functional on the S70FL01GSDSMFB010?

No - the VIO pin is marked RFU (Reserved for Future Use) and has no internal connection. The device operates solely from VCC (2.7–3.6 V) for core and I/O functions; all I/O pins are 1.65–3.6 V tolerant. Designers must leave VIO unconnected or tie it to VSS per Infineon's recommendation - it must not be driven by external circuitry.