Infineon Technologies S26KS256SDGBHV030

Overview

S26KS256SDGBHV030 from Infineon is a 256 Mb (32 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, RWDS read strobe, and CS# control. 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) in 24-ball FBGA package.

For engineers reviewing the S26KS256SDGBHV030 datasheet, S26KS256SDGBHV030 pinout, S26KS256SDGBHV030 application, or S26KS256SDGBHV030 equivalent, key selection criteria include HYPERBUS™ timing compliance, RWDS-synchronized DDR read latency (96 ns initial access), sector protection granularity, ECC implementation, and deep power-down current (4 µA).

Technical Context

The device implements a synchronous DDR interface where command/address and data share the 8-bit DQ bus, with dual-edge sampling referenced to CK/CK#. Read operations use RWDS as a center-aligned output strobe synchronized to data edges, enabling precise capture of 16-bit words across two DQ transitions per clock cycle.

Internally, it separates host interface control (HIC) from embedded algorithm execution (EAC), isolating protocol handling from flash management. The EAC autonomously executes program/erase sequences-including 512-byte buffer writes and 256-KB sector erases-without host intervention after command issuance.

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 S26KS256SDGBHV030, the Cypress alternative trades DDR bandwidth and ECC for simpler 3.0 V signaling, while the Winbond part replaces HYPERBUS™ complexity with proven Quad SPI compatibility at significantly lower throughput and no hardware error correction.

Availability

S26KS256SDGBHV030 is available at Aetrix Electronics and suitable for automotive ADAS modules, industrial PLCs, medical imaging subsystems, and 5G radio units requiring stable component supply, AEC-Q100 qualification, and guaranteed 20-year data retention.

Supply support for S26KS256SDGBHV030 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 ISO/TS 16949 certification and global manufacturing footprint.

This device belongs to the HYPERFLASH™ family, designed specifically to replace parallel NOR flash in bandwidth-constrained embedded systems requiring deterministic low-latency code execution and robust data integrity.

FAQ

What is the minimum supported clock frequency for S26KS256SDGBHV030?

The device supports variable clock rates down to DC for command execution, but sustained DDR read operations require ≥1 MHz to maintain RWDS synchronization. Initial access timing remains valid across the full 1–166 MHz range at 1.8 V, with no minimum frequency lock requirement for functional operation.

Does S26KS256SDGBHV030 support execute-in-place (XIP) operation?

Yes - the device supports true XIP mode via HYPERBUS™ DDR interface, allowing processor instruction fetch directly from flash without copying to RAM. This is enabled by deterministic 96 ns tACC, RWDS-synchronized read timing, and burst-length configurability matching CPU cache line sizes.

How is ECC implemented and what happens on 2-bit errors?

ECC is implemented in hardware using BCH(12,8) encoding. Single-bit errors are corrected transparently during read; 2-bit errors trigger the INT# pin and set status bits in the device's error register, allowing host software to initiate recovery or log the event without data corruption.

Can S26KS256SDGBHV030 operate with only single-ended clock (CK) instead of differential (CK/CK#)?

No - differential CK/CK# is mandatory for 1.8 V operation per HYPERBUS™ specification. The device does not support single-ended clock mode at 1.8 V. For single-ended clock systems, the 3.0 V variant (e.g., S26KS256SDABHV020) must be selected, which uses single-ended CK and omits CK# and RWDS.