Infineon Technologies S80KS5123GABHM020

Overview

S80KS5123GABHM020 from Infineon Technologies is a 512 Mb self-refresh DRAM (HYPERRAM™) with octal xSPI interface, operating at 1.8 V. It delivers 400 MBps data throughput via DDR transfers on an 8-bit DQ bus synchronized to a 200 MHz clock, supports configurable burst lengths (16–128 bytes), and integrates on-die refresh control for pseudo-static operation in embedded microcontroller systems requiring high-bandwidth external memory.

For engineers reviewing the S80KS5123GABHM020 datasheet, S80KS5123GABHM020 pinout, S80KS5123GABHM020 application, or S80KS5123GABHM020 equivalent, key selection criteria include xSPI command compatibility, RWDS-driven refresh latency signaling, hybrid sleep/deep power-down modes, and FBGA-24 package suitability for space-constrained industrial and automotive PCB layouts.

Technical Context

The S80KS5123GABHM020 implements a dual-die 512 Mb architecture (2 × 256 Mb), where each die operates independently under shared xSPI control. Its internal refresh logic autonomously manages partial (1/8, 1/4, 1/2) or full array refresh without host intervention, enabling PSRAM-like behavior while maintaining DRAM density and cost efficiency.

It uses LV-CMOS I/O with 1.8 V VCC/VCCQ, supports both single-ended (CK) and optional differential (CK/CK#) clocking, and relies on RWDS as a bidirectional strobe-outputting refresh latency indicators during command/address phases and serving as read data strobe or write mask during data phases.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (5 mm × 5 mm, 0.8 mm pitch), RoHS-compliant, suitable for automated SMT assembly and thermal management in dense layouts.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar high-speed self-refresh DRAM applications.

Compared with S27KS0641DPBHV020 and W958D8MBJX1I, the S80KS5123GABHM020 uniquely combines 512 Mb capacity, octal xSPI bandwidth, on-die partial refresh, and RWDS-based latency negotiation - making it optimal for next-generation automotive and industrial edge devices demanding both scale and determinism.

Availability

S80KS5123GABHM020 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMI panels, and edge AI inference accelerators requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S80KS5123GABHM020 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, sensing, and memory solutions for automotive, industrial, and IoT markets.

The HYPERRAM™ product line targets high-bandwidth, low-pin-count external memory expansion for resource-constrained MCUs and SoCs - bridging the gap between SRAM simplicity and DRAM density.

FAQ

What is the role of the RWDS signal in S80KS5123GABHM020 operation?

RWDS serves three distinct roles: (1) outputs a HIGH pulse during command/address phases to indicate required refresh latency (tRFH); (2) acts as read data strobe during read transactions; and (3) functions as write data mask during write transactions. This bidirectional behavior is essential for timing-critical xSPI protocols and cannot be omitted or repurposed.

Does S80KS5123GABHM020 require external refresh circuitry or host software intervention?

No. The device contains fully autonomous on-die refresh logic that performs partial or full array refreshes without host involvement. The host only needs to observe RWDS latency signals and limit burst durations per datasheet timing constraints - enabling true PSRAM-like integration.

Can S80KS5123GABHM020 operate with single-ended clock only, or is differential clock mandatory?

Single-ended clock (CK only) is fully supported and commonly used. Differential clock (CK/CK#) is optional and provided for improved noise immunity in electrically harsh environments such as automotive powertrain or industrial motor drives - no hardware modification is needed to switch between modes.

How does the hybrid burst mode differ from standard wrapped burst in S80KS5123GABHM020?

Hybrid burst executes one wrapped burst (e.g., 64 bytes) followed immediately by a linear burst - useful for accessing non-contiguous data blocks within a single transaction. Standard wrapped burst repeats address wrapping within its defined length. Hybrid mode is configurable via device registers and improves efficiency in irregular memory access patterns like sparse matrix operations.