Infineon Technologies S28HL01GTFPBHB033

Overview

S28HL01GTFPBHB033 from Cypress Semiconductor is a 1-Gb (128-MB), 3.0-V Semper® Flash NOR memory with Octal xSPI interface, ISO 26262 ASIL-B compliant safety architecture, 256 KB/4 KB hybrid sector configuration, and 2.7–3.6 V supply range. It delivers up to 332 MBps DDR read throughput at 166 MHz clock, supports EnduraFlex™ partitioning for high-endurance or long-retention use, and targets automotive ADAS boot code storage.

For engineers reviewing the S28HL01GTFPBHB033 datasheet, S28HL01GTFPBHB033 pinout, S28HL01GTFPBHB033 application, or S28HL01GTFPBHB033 equivalent, key selection criteria include ASIL-B functional safety certification, octal DDR read performance, 24-ball 8×8 mm BGA package compatibility, and hybrid sector protection for firmware update resilience.

Technical Context

This device implements Cypress's 45-nm MirrorBit® technology with two bits per cell and dual-controller architecture: Host Interface Controller (HIC) handles SPI/OPI protocol timing and data flow, while Embedded Algorithm Controller (EAC) manages autonomous program/erase sequences, ECC (SECDED), and SafeBoot initialization checks.

It supports JEDEC JESD251-compliant Octal Peripheral Interface (OPI) in both SDR (166 MHz, 166 MBps) and DDR (166 MHz, 332 MBps) modes, plus legacy x1 SPI. Data Strobe (DS) synchronizes high-speed read capture, and INT# provides open-drain interrupt signaling for erase/program completion or ECC error detection.

Key Specifications

Pinout & Package

24-ball BGA package (8 × 8 mm, 1.0 mm pitch), halogen-free and lead-free, rated for automotive Grade 2 (−40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-reliability NOR flash applications.

Compared with S28HL01GTFPBHB033, the Infineon variant offers drop-in hardware compatibility but demands firmware alignment, while the Macronix part sacrifices safety certification and bandwidth-making it viable only in non-automotive contexts where those attributes are unnecessary.

Availability

S28HL01GTFPBHB033 is available at Aetrix Electronics and suitable for automotive ADAS domain controllers, industrial PLCs, and medical imaging systems requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S28HL01GTFPBHB033 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

Cypress Semiconductor (now part of Infineon Technologies) designs high-reliability memory and microcontroller solutions for automotive, industrial, and communications markets.

The Semper® Flash family was developed specifically to meet ISO 26262 ASIL-B functional safety requirements for automotive boot memory, combining octal interface speed with embedded diagnostics and configurable endurance.

FAQ

What is the maximum DDR read throughput of S28HL01GTFPBHB033, and under what conditions is it achieved?

The device achieves 332 MBps DDR read throughput at 166 MHz clock frequency in HL-T (3.0-V) mode with octal interface enabled. This requires DS signal usage for data capture synchronization and proper termination of DQ/CK lines per JEDEC JESD251 layout guidelines. Performance assumes continuous linear burst reads without address wraparound.

Does S28HL01GTFPBHB033 support both uniform and hybrid sector architectures, and how is configuration controlled?

Yes-it supports uniform (all 256 KB sectors) and two hybrid configurations: 32 × 4 KB sectors grouped top/bottom or split equally. Configuration is set via nonvolatile configuration registers (CR) programmed using standard write-enable/program commands; default is hybrid configuration 1, and changes persist across power cycles.

How does the SafeBoot feature verify device initialization integrity, and what recovery actions are available?

SafeBoot validates configuration registers, SFDP header, and boot block checksum at power-on. If corruption is detected, it enters SafeBoot mode, disables array access, and asserts INT# to alert the host. Recovery options include loading factory defaults from secure silicon or accepting corrected configuration via dedicated command sequence-no external reprogramming required.

Is RESET# pin mandatory for operation, and what happens if it is left unconnected?

RESET# is optional; the device operates fully without it. If left unconnected, its internal weak pull-up drives it HIGH, disabling reset functionality. All essential operations-including AutoBoot, SafeBoot, and command execution-function normally. RESET# is only needed for synchronous hardware-initiated reinitialization, such as after brown-out detection.