Cypress Semiconductor Corp S26KL512SDABHV020

Overview

S26KL512SDABHV020 from Infineon Technologies 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 data bus (DQ[7:0]), and read data strobe (RWDS). It delivers 333 MBps sustained read throughput at 166 MHz, features ECC 1-bit correction/2-bit detection, 256-KB uniform sectors, and supports industrial-plus temperature range (–40°C to +105°C) in a 24-ball FBGA package for high-reliability embedded boot storage.

For engineers reviewing the S26KL512SDABHV020 datasheet, S26KL512SDABHV020 pinout, S26KL512SDABHV020 application, or S26KL512SDABHV020 equivalent, key selection criteria include DDR HYPERBUS™ timing compliance, RWDS-synchronized read latency (96 ns initial access), sector protection configuration, deep power-down current (8 µA typical), and AEC-Q100 grade 2 qualification for automotive control modules.

Technical Context

The device 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 autonomous program/erase sequences without host intervention. It uses MIRRORBIT™ technology for 16-bit word-wide addressing and page-aligned 32-byte random reads with configurable burst modes (wrapped/linear/hybrid).

HYPERBUS™ protocol enables command/address/data multiplexing over the same 8-bit DQ bus using DDR edge-aligned transfers; RWDS output is edge-aligned to CK/CK# transitions during reads, and DCARS (DDR Center-Aligned Read Strobe) ensures precise data capture timing. Initial latency ranges from 5–16 clock cycles depending on configuration.

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 S26KL512SDABHV020, the Cypress alternative matches functionality but sacrifices automotive qualification, while Winbond's QSPI part requires interface redesign and delivers <15% of the sustained read bandwidth - making it viable only for cost-driven, non-performance-critical upgrades.

Availability

S26KL512SDABHV020 is available at Aetrix Electronics and suitable for automotive engine control units, industrial PLCs, medical imaging boot systems, and 5G radio unit configuration storage requiring stable component supply across extended temperature and long-lifecycle programs.

Supply support for S26KL512SDABHV020 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 for high-bandwidth, low-latency boot and code storage in systems requiring deterministic DDR flash access with integrated ECC and robust data protection.

FAQ

What is the purpose of the RWDS signal in S26KL512SDABHV020?

RWDS (Read Data Strobe) is an output signal synchronized to data transitions on DQ[7:0] during read operations. It is edge-aligned to CK/CK# and indicates precisely when valid data is present on the bus, allowing the host controller to latch data without relying on fixed delay margins or complex deskew circuitry - essential for reliable high-speed DDR timing closure.

Does S26KL512SDABHV020 support both 1.8 V and 3.0 V I/O operation?

No - S26KL512SDABHV020 is a 1.8 V I/O variant only, identified by the "D" suffix in the part number. It requires differential clock (CK/CK#) and supports up to 166 MHz operation. The 3.0 V I/O versions (e.g., S26KL512SAxxHV020) use single-ended clock and max out at 100 MHz - they are not interchangeable due to voltage and signaling differences.

How does the embedded algorithm controller (EAC) improve system design?

The EAC autonomously executes program and erase algorithms without host CPU involvement, reducing firmware complexity and eliminating timing-critical software delays. It handles sector locking, buffer programming, and error recovery internally - enabling deterministic flash operations even under interrupt latency or low-priority task scheduling in real-time OS environments.

Can S26KL512SDABHV020 be used in place of parallel NOR flash in existing designs?

No - it uses HYPERBUS™ DDR interface with differential clock and RWDS, requiring compatible controller hardware and PCB layout changes. Unlike parallel NOR, it does not support asynchronous address/data buses or CE#/OE#/WE# control signals. Migration requires HYPERBUS™-capable SoC or FPGA IP integration and signal integrity validation for 166 MHz differential pairs.