Spansion S26KL128SDABHM030

Overview

S26KL128SDABHM030 from Infineon 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, 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 S26KL128SDABHM030 datasheet, S26KL128SDABHM030 pinout, S26KL128SDABHM030 application, or S26KL128SDABHM030 equivalent, key selection criteria include DDR burst timing compliance, RWDS-synchronized read latency (96 ns tACC), sector protection granularity, deep power-down current (4 µA), and AEC-Q100 grade compatibility for automotive control modules.

Technical Context

The S26KL128SDABHM030 implements a dual-controller architecture: Host Interface Controller (HIC) manages real-time DDR signal capture and RWDS-aligned data transfer, while Embedded Algorithm Controller (EAC) executes internal program/erase sequences without host intervention. It uses MIRRORBIT™ floating-gate technology for non-volatile storage and supports both wrapped (16/32/64-byte) and linear burst modes.

HYPERBUS™ protocol enables command/address/data multiplexing over the same 8-bit DQ bus using DDR timing - two 16-bit transfers per clock cycle (one on rising, one on falling edge). RWDS output is edge-aligned to CK/CK# transitions during reads, enabling precise data capture at 166 MHz with 5–16 clock-cycle initial latency.

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 serial NOR flash applications.

Compared with S26KL128SDABHM030, the Cypress alternative offers identical performance with broader temperature support but no automotive validation, while the Winbond part trades bandwidth and timing determinism for footprint and cost - making it suitable only for non-real-time firmware storage.

Availability

S26KL128SDABHM030 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLCs, medical imaging boot loaders, and avionics display systems requiring stable component supply, long-term lifecycle assurance, and AEC-Q100-compliant flash memory.

Supply support for S26KL128SDABHM030 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 certifications including ISO/TS 16949.

The HYPERFLASH™ product line targets high-performance embedded systems needing deterministic boot and firmware execution, delivering DDR-speed NOR flash with reduced interface complexity versus parallel architectures.

FAQ

What is the purpose of the RWDS signal in S26KL128SDABHM030?

RWDS (Read Data Strobe) is a source-synchronous output that toggles edge-aligned with valid read data on DQ[7:0]. It enables the host controller to accurately latch DDR data without relying on fixed clock-to-data skew margins. RWDS is generated only during read operations and is referenced to CK/CK# transitions, ensuring robust data capture at 166 MHz even under board-level timing variation.

Does S26KL128SDABHM030 support both 1.8 V and 3.0 V I/O operation?

No - S26KL128SDABHM030 is a 1.8 V I/O variant only, indicated by the "D" in the suffix (per Infineon ordering guide). It requires 1.8 V VCCQ and uses differential CK/CK# signaling. The 3.0 V I/O variants (e.g., S26KL128SAxxHM030) use single-ended CK and different timing parameters; mixing voltage domains risks functional failure or damage.

How does the 512-byte program buffer improve write performance?

The 512-byte buffer allows up to 64 consecutive 8-bit writes to be staged before committing to flash, reducing per-word overhead. This achieves ~1 MBps effective programming speed (vs. 4 KBps for single-word writes), cutting full-sector (256 KB) programming time from ~51 seconds to ~250 ms - critical for rapid firmware updates in field-deployed systems.

Can S26KL128SDABHM030 be used without external pull-up resistors on DQ lines?

Yes - the device integrates weak internal pull-ups on DQ[7:0] in high-impedance state (CS# HIGH), eliminating need for external resistors during idle or power-down. However, external termination may still be required for signal integrity at 166 MHz depending on trace length and topology; refer to Infineon's layout guidelines for controlled-impedance routing and CK/CK# pair matching.