Infineon Technologies S70FL01GSAGMFB010

Overview

S70FL01GSAGMFB010 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 sector erase, and support for Normal/Fast/Dual/Quad/DDR read modes. It implements two stacked S25FL512S dies, each independently accessible via CS1# and CS2#, and targets boot code storage in industrial and automotive embedded systems requiring high endurance and long data retention.

For engineers reviewing the S70FL01GSAGMFB010 datasheet, S70FL01GSAGMFB010 pinout, S70FL01GSAGMFB010 application, or S70FL01GSAGMFB010 equivalent, key selection criteria include dual-die addressing behavior, independent status/configuration register management per die, Quad I/O timing compliance, and AEC-Q100 Grade 2 qualification for extended temperature operation up to +105°C.

Technical Context

The device uses Infineon's 65 nm MirrorBit® Flash technology with Eclipse™ architecture and operates as two independent 512 Mbit FL-S flash arrays sharing a common SOIC-16 or BGA-24 package. Each die supports full SPI command sets including AutoBoot, CFI interrogation, and OTP array programming.

It requires separate chip-select control (CS1# and CS2#) for die access, mandates independent status/config register writes per die, and does not support cross-die sequential reads or bulk erase - both operations must be issued individually to each die.

Key Specifications

Pinout & Package

Package: 16-lead SOIC (300 mils), Pb-free, with dual-die internal structure and dedicated chip select lines for independent die access.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S25FL128SAGMFI10 and MX25L1G45GM2I-12G, the S70FL01GSAGMFB010 uniquely provides dual-die independence - critical for safety-critical boot partitioning, die-level firmware rollback, and failure containment - while maintaining full command compatibility with the FL-S family.

Availability

S70FL01GSAGMFB010 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLC firmware storage, medical imaging control boards, and avionics display systems requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for S70FL01GSAGMFB010 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 for industrial and safety-critical applications.

The S70FL01GS belongs to Infineon's FL-S SPI flash product line, designed specifically for high-reliability embedded boot memory applications requiring AEC-Q100 qualification, long data retention, and advanced security features like OTP and ASP.

FAQ

What is the function of CS1# and CS2# on the S70FL01GSAGMFB010?

CS1# and CS2# are independent chip select inputs that activate separate 512 Mbit flash dies within the same package. CS1# controls access to Die #1; CS2# controls Die #2. Commands, status reads, and configuration updates must be issued to each die individually - no shared or broadcast operation is supported.

Does the S70FL01GSAGMFB010 support true cross-die sequential reads?

No. Sequential reads cannot span from the end of Die #1 to the start of Die #2. To read across both dies, the host must issue a read command to Die #1 using CS1#, then issue a separate read command to Die #2 using CS2#. The device does not provide automatic address wraparound between dies.

Is VIO supply used in the S70FL01GSAGMFB010?

No. VIO is marked RFU (Reserved for Future Use) in this device. The datasheet explicitly states VIO is not supported and must not be connected. All I/O signaling operates from the core VCC supply (2.7–3.6 V); no separate I/O voltage rail is required or functional.

How does the OTP array function in the S70FL01GSAGMFB010?

The 2048-byte OTP array is programmed once per sector using standard SPI program commands. Once written, bits can only be changed from '1' to '0'. It is commonly used to store immutable data such as cryptographic keys, calibration coefficients, or unique device identifiers, and is protected against accidental overwrite by status register lock bits.