Infineon Technologies S26KL256SDABHB023

Overview

S26KL256SDABHB023 from Infineon Technologies 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# chip select. 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 embedded boot code storage.

For engineers reviewing the S26KL256SDABHB023 datasheet, S26KL256SDABHB023 pinout, S26KL256SDABHB023 application, or S26KL256SDABHB023 equivalent, key selection criteria include HYPERBUS™ timing compliance (96 ns tACC), RWDS-synchronized DDR read alignment, sector protection granularity, deep power-down current (4 µA), and AEC-Q100 grade compatibility for automotive control modules.

Technical Context

The device implements a synchronous DDR interface where command/address and data share the 8-bit DQ bus, with CK/CK# differential clock enabling precise edge-aligned sampling. RWDS output is edge-aligned to CK transitions during reads, while internal MIRRORBIT™ architecture enables concurrent page fetch and burst output for sustained 333 MBps throughput.

It integrates dual-control logic: Host Interface Controller (HIC) manages real-time signal handshake and data transfer, while Embedded Algorithm Controller (EAC) executes non-volatile programming/erase sequences-including 512-byte buffer writes and 256-KB sector erases-without host intervention.

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 high-speed NOR flash applications.

Compared with S26KL256SDABHB023, the S26KS256SDABHB020 offers identical performance and fit, while the S26KL256SDABHI023 extends thermal capability at no speed or interface trade-off - enabling direct upgrade paths for thermal margin expansion.

Availability

S26KL256SDABHB023 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLCs, 5G radio units, and medical imaging systems requiring stable component supply across extended product lifecycles.

Supply support for S26KL256SDABHB023 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 manufacturing and quality certification to ISO/TS 16949 and AEC-Q100 standards.

This part belongs to the HYPERFLASH™ family - designed specifically for high-bandwidth, low-pin-count boot and code storage in resource-constrained embedded systems where parallel NOR footprint and QSPI speed are insufficient.

FAQ

What voltage levels does S26KL256SDABHB023 support for core and I/O operation?

The device operates with 1.8 V VCC/VCCQ supply for both core logic and I/O interface, enabling compatibility with modern low-voltage SoCs and FPGAs. It does not support 3.0 V operation - this variant is strictly 1.8 V I/O, as confirmed by ordering code 'D' (1.8 V) and datasheet Rev. *Q specifications.

Does S26KL256SDABHB023 require an external clock termination resistor?

Yes - the differential CK/CK# inputs require 100 Ω Thevenin termination between the pair, placed as close as possible to the device balls per Figure 10 in the datasheet. This ensures signal integrity at 166 MHz and prevents read-data misalignment due to reflection-induced jitter.

Can RWDS be disabled or repurposed for other functions?

No - RWDS is a dedicated, non-multiplexed output that cannot be disabled or reassigned. It is essential for read-data capture timing and must be connected to the host controller's strobe input. The device does not provide register control over RWDS functionality.

How is sector protection configured - via hardware pins or software commands?

Sector protection is configured exclusively via software commands written to the device's command interface (e.g., 0x60 followed by 0xD0 for sector lock). No hardware pins enable or disable protection; volatile and non-volatile lock states are set using standard HYPERFLASH™ command sequences defined in Section 8.1 of the datasheet.