Infineon Technologies S26HL02GTFGBHB040

Overview

S26HL02GTFGBHB040 from Infineon is a 2 Gb (256 MB) automotive-grade SEMPER™ NOR Flash memory with HYPERBUS™ DDR interface, 1.8 V core supply (HS-T), 24-ball BGA package, and ISO 26262 ASIL-B compliance. It delivers up to 332 MBps read throughput, supports 4 KB/256 KB hybrid sector architecture, includes on-die SECDED ECC, and targets boot code storage in ADAS and infotainment ECUs.

For engineers reviewing the S26HL02GTFGBHB040 datasheet, S26HL02GTFGBHB040 pinout, S26HL02GTFGBHB040 application, or S26HL02GTFGBHB040 equivalent, key selection criteria include HYPERBUS™ DDR timing alignment with DS strobe, dual-die package thermal derating, AEC-Q100 Grade 2 temperature range (-40 °C to +105 °C), and OTP secure silicon region configuration for firmware authentication.

Technical Context

This device implements Infineon's 45-nm MIRRORBIT™ technology with two bits per cell and integrates dual 1 Gb dies in a single 24-ball BGA. It supports both legacy ×1 SPI (SDR, up to 20.75 MBps) and HYPERBUS™ ×8 DDR (up to 332 MBps), with command/address/data transferred in DDR fashion over DQ[7:0] using CK/CK# crossing detection.

The interface includes dedicated DS output for read-data capture synchronization, RSTO# open-drain reset status indicator, and INT# interrupt signaling for background operations. Internal error handling comprises interface CRC, array data integrity CRC, SafeBoot initialization reporting, and hardware-managed sector erase status tracking during power loss.

Key Specifications

Pinout & Package

Package: 24-ball BGA, 8 mm × 8 mm, 0.8 mm pitch, RoHS-compliant. Ball layout optimized for signal integrity in DDR mode with dedicated VCCQ/VSSQ pairs and differential clock routing.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S26HL02GTFGBHB040, the Cypress alternative trades safety certification and secure storage for lower unit cost and smaller footprint, while the Infineon SOIC variant sacrifices DDR signal integrity and thermal dissipation for assembly simplicity - neither matches the AEC-Q100 Grade 2 + BGA + HYPERBUS™ DDR + SSR combination.

Availability

S26HL02GTFGBHB040 is available at Aetrix Electronics and suitable for ADAS domain controllers, automotive infotainment head-units, and electric powertrain gateways requiring stable component supply, long-term lifecycle support, and AEC-Q100 qualification.

Supply support for S26HL02GTFGBHB040 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 MCUs, and safety-certified memory solutions, with global R&D centers and ISO/TS 16949-certified wafer fabs.

The SEMPER™ Flash product line was designed specifically for automotive functional safety applications, integrating ISO 26262-aligned features like SafeBoot, interface CRC, and ASIL-B certified failure modes into NOR Flash architecture.

FAQ

Does S26HL02GTFGBHB040 support both HYPERBUS™ and legacy SPI interfaces simultaneously?

No - the interface mode is selected at power-on via hardware configuration pins (not software). HYPERBUS™ (×8 DDR) and legacy ×1 SPI are mutually exclusive operating modes. The device boots in legacy SPI by default unless configured otherwise using SFDP register settings during initialization. Both modes share the same DQ[7:0] pins but differ in clocking, strobe usage, and transaction framing.

What is the purpose of the RSTO# pin, and how does it differ from RESET#?

RSTO# is an open-drain output that signals internal power-on reset (POR) status, transitioning from LOW to high-impedance after timeout - allowing external pull-up to assert system reset. RESET# is an input that triggers immediate POR when pulled LOW. RSTO# blocks all transactions while active; RESET# does not block ongoing operations but forces reinitialization upon release.

Can the 4 KB sectors be programmed independently of the 256 KB sectors?

Yes - the hybrid sector architecture allows independent program/erase operations on any 4 KB or 256 KB sector. Each sector has individual protection bits, and the OTP SSR resides in a dedicated 1024-byte region outside both sector types. Programming a 4 KB sector uses the same command set as 256 KB sectors but with different address mapping and endurance rating (300K vs. 2.56M cycles).

Is the DS (Data Strobe) signal required for reliable read operation in HYPERBUS™ mode?

Yes - DS is mandatory for HYPERBUS™ DDR read operations. It toggles synchronously with DQ[7:0] output edges and defines the valid data window. Unlike clock-forwarding schemes, DS is generated internally and accounts for die-to-die skew in the dual-die package. Omitting DS connection results in undetermined data capture timing and violates JEDEC JESD251 xSPI compliance.