Infineon Technologies S27KS0642GABHI030

Overview

S27KS0642GABHI030 from Infineon Technologies is a 64Mb self-refresh DRAM (PSRAM) with HYPERBUS™ interface, operating at 1.8 V/3.0 V VCC/VCCQ, supporting DDR transfers up to 200 MHz and 400 MBps throughput. It features bidirectional RWDS strobe, configurable burst lengths (16–128 bytes), partial/full array refresh, and industrial temperature range (–40°C to +85°C) in 24-ball FBGA package. Used as high-bandwidth external memory for microcontrollers in embedded HMI and automotive infotainment systems.

For engineers reviewing the S27KS0642GABHI030 datasheet, S27KS0642GABHI030 pinout, S27KS0642GABHI030 application, or S27KS0642GABHI030 equivalent, key selection criteria include HYPERBUS™ timing compliance, RWDS phase alignment support, DCARS capability, burst configuration flexibility, and AEC-Q100 Grade 3 qualification for automotive use cases.

Technical Context

The device implements a DDR HYPERBUS™ interface with 8-bit DQ bus and bidirectional RWDS used as read data strobe, write data mask, and initial latency indicator. It integrates on-die refresh logic that autonomously manages DRAM array refresh without host intervention, enabling PSRAM-like ease of use.

Command/address and data share the same DQ[7:0] lines in time-multiplexed fashion; all transactions begin with CS# assertion and six-byte CA transfer. The optional differential clock (CK/CK#) and DCARS mode provide timing margin enhancement for high-speed read operations under signal integrity constraints.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (5 mm × 5 mm, 0.8 mm pitch), RoHS-compliant, moisture sensitivity level 3.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PSRAM/HYPERRAM™ applications.

Compared with S27KS0642GABHI030, the S27KL0642GABHI030 offers identical performance and footprint for continuity in legacy designs, while the S27KS0642GABHI020 provides +105°C operation at no speed or interface trade-off-enabling reuse of HYPERBUS™ firmware across temperature grades.

Availability

S27KS0642GABHI030 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMI displays, and portable medical monitors requiring stable component supply, AEC-Q100 compliance, and long-term lifecycle assurance.

Supply support for S27KS0642GABHI030 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 IoT markets.

This device belongs to the HYPERRAM™ product line, designed specifically to replace parallel NOR/NAND flash and SRAM in bandwidth-constrained embedded systems requiring simple interface, low pin count, and self-refresh capability.

FAQ

What is the purpose of the RWDS signal in S27KS0642GABHI030?

RWDS is a bidirectional strobe used to indicate initial access latency before read data, serve as read data strobe aligned with DQ transitions, and act as write data mask during writes. Its timing behavior changes per transaction type and supports DCARS mode for enhanced read timing margin at high frequencies.

Does S27KS0642GABHI030 require external refresh management?

No. The device contains integrated self-refresh logic that autonomously performs DRAM array refresh during idle periods. The host processor treats it as static memory-no refresh commands or scheduling are needed, simplifying software and firmware design.

Can S27KS0642GABHI030 operate with single-ended clock only?

Yes. The device supports both single-ended (CK only) and differential (CK/CK#) clock inputs. Single-ended mode uses 11 bus signals; differential mode adds CK# for improved noise immunity and requires 12 signals. Configuration is hardware-selectable via package ball strapping.

What package variant is used for S27KS0642GABHI030?

S27KS0642GABHI030 uses a 24-ball FBGA package with 5 mm × 5 mm footprint and 0.8 mm ball pitch. It is RoHS-compliant, moisture sensitivity level 3, and optimized for automated surface-mount assembly in high-density PCB layouts.