Infineon Technologies S26KS128SDPBHB023

Overview

S26KS128SDPBHB023 from Infineon Technologies is a 128 Mb (16 MB) HYPERFLASH™ synchronous NOR flash memory with HYPERBUS™ DDR interface, operating at 1.8 V I/O and supporting differential clock (CK/CK#), 8-bit DQ bus, and RWDS read strobe. It delivers 333 MBps sustained read throughput at 166 MHz, features 256-KB uniform sectors with optional 4-KB parameter sectors, ECC 1-bit correction/2-bit detection, and supports industrial temperature range (–40°C to +85°C) in 24-ball FBGA package for embedded boot code storage.

For engineers reviewing the S26KS128SDPBHB023 datasheet, S26KS128SDPBHB023 pinout, S26KS128SDPBHB023 application, or S26KS128SDPBHB023 equivalent, key selection criteria include HYPERBUS™ timing compliance (96 ns random access, 118 ns CS# to first word), RWDS-synchronized DDR read alignment, configurable burst length (16/32/64 bytes), deep power-down current (4 µA), and AEC-Q100 grade 3 qualification for automotive control modules.

Technical Context

This device implements a DDR center-aligned read strobe (DCARS) architecture where command/address and data are transferred over the same 8-bit DQ bus using double-data-rate signaling synchronized to CK/CK#. Read data is edge-aligned to RWDS transitions, while commands are center-aligned to clock edges - enabling deterministic timing for high-speed boot fetch.

The internal control logic splits functionality between Host Interface Controller (HIC) for real-time signal management and Embedded Algorithm Controller (EAC) for autonomous program/erase execution. Sector protection uses both volatile (lock bits) and non-volatile (OTP-based) methods, and the 512-byte write buffer enables ~1 MBps buffered programming performance.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (VAA024), 5 mm × 5 mm × 1.0 mm, 0.8 mm ball pitch, RoHS-compliant.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar synchronous NOR flash applications.

Compared with S26KS128SDPBHI020, this part trades extended temperature margin for lower cost and standard industrial qualification; versus S26KL128SDPBHB020, it provides higher bandwidth and lower power at the expense of requiring differential clock infrastructure.

Availability

S26KS128SDPBHB023 is available at Aetrix Electronics and suitable for automotive ECU, industrial PLC, ADAS sensor hub, and medical imaging boot applications requiring stable component supply, AEC-Q100 compliance, and HYPERBUS™-based high-speed code execution.

Supply support for S26KS128SDPBHB023 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 memory solutions, with global R&D and manufacturing facilities.

This device belongs to the HYPERFLASH™ family - designed specifically for high-bandwidth, low-pin-count boot memory in automotive and industrial real-time systems requiring deterministic read latency and long-term data integrity.

FAQ

What is the minimum supported clock frequency for S26KS128SDPBHB023?

The device supports clock frequencies down to DC (0 Hz) in active mode, with no minimum operational clock requirement. It maintains data integrity and accepts commands at any frequency up to 166 MHz. The HYPERBUS™ protocol does not mandate continuous clocking - clock can be stopped during idle periods without wake-up delay, enabling dynamic power gating in battery-powered systems.

Does S26KS128SDPBHB023 support XIP (execute-in-place) operation?

Yes, S26KS128SDPBHB023 supports true XIP operation via its HYPERBUS™ DDR interface. The host processor accesses instruction code directly from flash without copying to RAM, enabled by deterministic 96 ns random access time and burst read capability. This is validated in Infineon's reference designs with ARM Cortex-R and Cortex-A processors using standard MMU and cache coherency protocols.

How is sector protection configured on this device?

Sector protection is implemented through both volatile lock bits (cleared on power cycle) and non-volatile OTP fuses. Each 256-KB sector has independent protection control; parameter sectors (optional 4-KB × 8) support one-time locking. Configuration is performed via standard HYPERBUS™ command sequences (e.g., 0x60 followed by 0xD0), with status verified through protected read attempts or status register polling.

What is the purpose of the RSTO# pin and how is its pulse width set?

RSTO# outputs a system-level power-on reset pulse synchronized to internal VCC ramp-up. Its LOW duration is user-configurable via OTP programming during manufacturing - default values range from 10 ms to 100 ms depending on ordering option. This eliminates need for external RC reset generators and ensures precise timing alignment with host processor reset requirements.