Infineon Technologies S26KS512SDPBHM020

Overview

S26KS512SDPBHM020 from Infineon is a 512 Mb (64 MB) HYPERFLASH™ 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, ECC 1-bit correction/2-bit detection, and supports industrial temperature range (–40°C to +85°C). It is used in high-performance boot code storage for automotive ADAS controllers.

For engineers reviewing the S26KS512SDPBHM020 datasheet, S26KS512SDPBHM020 pinout, S26KS512SDPBHM020 application, or S26KS512SDPBHM020 equivalent, key selection criteria include HYPERBUS™ timing compliance (96 ns tACC), RWDS-synchronized DDR read alignment, sector protection granularity, deep power-down current (8 µA), and AEC-Q100 grade 3 qualification for automotive use.

Technical Context

The 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 operations require initial latency of 5–16 clock cycles and support configurable burst lengths (16/32/64 bytes) with wrapped or linear modes.

Internally, it separates host interface control (HIC) and embedded algorithm control (EAC): HIC handles real-time signal capture and data transfer timing, while EAC executes non-volatile programming/erase sequences-including 256-KB sector erase, 512-byte buffer programming, and volatile/non-volatile sector protection-without host intervention.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (VAA024), 5 × 5 mm, 0.8 mm pitch, RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S26KS512SDPBHM020, the Cypress-branded variant offers drop-in compatibility, while the Macronix part requires interface redesign and sacrifices DDR timing precision, making it unsuitable for automotive or real-time boot-critical systems.

Availability

S26KS512SDPBHM020 is available at Aetrix Electronics and suitable for automotive ADAS controllers, industrial PLCs, telecom baseband units, and medical imaging systems requiring stable component supply across extended product lifecycles.

Supply support for S26KS512SDPBHM020 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 high-reliability memory solutions, with global R&D and manufacturing facilities.

This device belongs to Infineon's HYPERFLASH™ family, designed specifically for high-bandwidth, low-pin-count boot memory in automotive and industrial SoC platforms requiring deterministic DDR timing and AEC-Q100 compliance.

FAQ

What is the minimum supported clock frequency for S26KS512SDPBHM020?

The device supports variable clock rates down to DC (0 Hz) in active clock stop mode, but operational read/write functions require a minimum 1 MHz clock for command execution. The datasheet specifies timing parameters starting at 10 MHz for reliable setup/hold margins, and typical use begins at 25 MHz for initialization sequences before scaling to 166 MHz.

Does S26KS512SDPBHM020 support octal SPI or QPI interfaces?

No. S26KS512SDPBHM020 exclusively implements the HYPERBUS™ DDR interface with mandatory CK/CK#, RWDS, and 8-bit DQ signals. It does not support SPI, QSPI, octal SPI, or any serial peripheral interface protocol-only HYPERBUS™-compliant masters (e.g., TI AM65x, NXP S32G2, Renesas R-Car H3) can drive it directly.

How is the 512-byte program buffer utilized during write operations?

The buffer operates as a write cache: host writes up to 512 consecutive bytes to the buffer address space, then issues a single "buffer program" command. The device internally clocks all 512 bytes into the array in ~475 µs, achieving ~1 MBps effective throughput-eliminating per-word overhead and reducing host CPU load during firmware updates.

Can RSTO# be disabled or repurposed as a general-purpose output?

No. RSTO# is a dedicated open-drain output with fixed functionality: it asserts LOW after power-on reset completion for a user-configurable duration (1–128 ms via internal register), then releases. It cannot be disabled, inverted, or reassigned-it serves solely as a system-level reset coordination signal per automotive power sequencing standards.