Spansion S26KL128SDABHA020

Overview

S26KL128SDABHA020 from Infineon is a 128-Mb (16-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 S26KL128SDABHA020 datasheet, S26KL128SDABHA020 pinout, S26KL128SDABHA020 application, or S26KL128SDABHA020 equivalent, key selection criteria include HYPERBUS™ timing compliance, RWDS-synchronized DDR read latency (96 ns tACC), sector protection configuration, deep power-down current (4 µA), and AEC-Q100 grade compatibility for automotive boot code storage.

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#. Its embedded algorithm controller (EAC) autonomously executes program/erase sequences without host intervention, using internal state machines and command memory.

HYPERFLASH™ uses MIRRORBIT™ technology enabling 16-bit word-wide accesses on 8-bit bus via DDR transfers; each read burst starts with 5–16 clock-cycle initial latency, followed by wrapped (16/32/64-byte) or linear sequential output, with automatic page prefetch during linear bursts to sustain 333 MBps throughput.

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 S26KL128SDABHA010 and S26KS128SDABHA020, the S26KL128SDABHA020 uniquely combines AEC-Q100 Grade 2 qualification, 1.8 V differential-clock HYPERBUS™ operation, and 333 MBps throughput - making it the sole option for automotive ADAS boot in thermally demanding environments.

Availability

S26KL128SDABHA020 is available at Aetrix Electronics and suitable for automotive ADAS modules, industrial PLCs, 5G small cell base stations, and medical imaging systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant flash memory.

Supply support for S26KL128SDABHA020 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, sensor, and memory solutions for automotive, industrial, and communications markets.

This device belongs to the HYPERFLASH™ family - designed specifically to replace parallel NOR flash in high-performance embedded systems by delivering DDR-speed throughput with minimal pin count and robust data integrity features.

FAQ

What is the purpose of the RWDS signal in S26KL128SDABHA020?

RWDS (Read Data Strobe) is an output signal synchronized to read data transitions on DQ[7:0]. It serves as a source-synchronous timing reference for the host controller to accurately latch valid data during DDR reads. Unlike clock-based sampling, RWDS edge alignment eliminates skew sensitivity and relaxes PCB layout constraints for high-speed routing.

Does S26KL128SDABHA020 support both wrapped and linear burst modes?

Yes - the device supports configurable burst types per transaction: wrapped bursts of 16, 32, or 64 bytes, or linear bursts that continue sequentially until CS# deassertion. The burst type is selected via command register bits and enables optimization for cache-line fills (wrapped) or streaming DMA transfers (linear).

How does the Embedded Algorithm Controller (EAC) improve system reliability?

The EAC executes autonomous program/erase algorithms using internal state machines and command memory. This eliminates host software dependency for complex flash operations, prevents partial writes during power loss, and ensures atomic sector erases - critical for maintaining firmware integrity in unattended industrial and automotive applications.

What is the function of the RSTO# pin and how is it configured?

RSTO# is an open-drain output that generates a system-level power-on reset pulse. Its LOW duration is user-configurable via status register bits (typically 1–100 ms). During power-up, RSTO# asserts after internal voltage stabilization, coordinating reset timing across multiple ICs without external RC networks or supervisors.