Infineon Technologies S70KS1283GABHA023

Overview

S70KS1283GABHA023 from Infineon is a 128 Mb pseudo-static RAM (PSRAM) with self-refresh DRAM architecture, octal xSPI interface, 1.8 V/3.0 V dual-voltage support, 200 MHz max clock rate, and 400 MBps data throughput. It serves as high-bandwidth, low-latency external memory for microcontrollers in automotive instrument clusters requiring AEC-Q100 Grade 2 compliance (–40°C to +105°C).

For engineers reviewing the S70KS1283GABHA023 datasheet, S70KS1283GABHA023 pinout, S70KS1283GABHA023 application, or S70KS1283GABHA023 equivalent, key selection criteria include octal xSPI timing alignment, RWDS strobe behavior during DDR reads, configurable burst lengths (16–128 bytes), hybrid sleep mode power gating per die, and FBGA-24 package compatibility with high-density PCB layouts.

Technical Context

This PSRAM implements stacked-die architecture (two 64 Mb dies) with independent refresh control per die, enabling selective entry into Hybrid Sleep or Deep Power Down modes-only one die active at a time. The xSPI interface supports both single-ended (11-signal) and optional differential clock (CK/CK#, 12-signal) configurations, with RWDS serving dual roles: read-data strobe (center-aligned via DCARS) and write-data mask.

Memory access uses linear or wrapped burst modes (8–64 clocks), with hybrid burst (wrapped + linear) supported on 64 Mb boundaries. Internal logic includes configurable output drive strength, register-accessible configuration registers (CR0/CR1), and hardware reset (RESET#) with defined power-up initialization sequence per JEDEC JESD22-A107.

Key Specifications

Pinout & Package

24-ball FBGA (5 mm × 5 mm, 0.8 mm pitch), RoHS-compliant, suitable for automated SMT assembly and thermal management in automotive-grade PCBs.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S27KL0641DPBHB020 and MT48LC16M16A2P-6A, the S70KS1283GABHA023 delivers 2× density, octal xSPI bandwidth, autonomous refresh, and automotive-grade thermal/power robustness-making it uniquely suited for next-generation embedded displays and edge AI caches.

Availability

S70KS1283GABHA023 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMIs, edge AI inference accelerators, and medical ultrasound image pipelines requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S70KS1283GABHA023 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 R&D and manufacturing infrastructure.

The HYPERRAM™ product line targets high-performance, low-pin-count external memory for resource-constrained MCUs-designed specifically to replace parallel SRAM and legacy SDRAM in automotive, industrial, and medical edge devices.

FAQ

Does S70KS1283GABHA023 require external refresh circuitry?

No. The device integrates self-refresh logic that autonomously manages DRAM array refresh during idle cycles. The host MCU interacts with it as a static RAM-no refresh commands, timers, or firmware intervention are needed. Refresh occurs transparently when CS# is deasserted for ≥15.6 µs, per datasheet Section 8.1.

What is the function of the RWDS pin during write operations?

During write transactions, RWDS operates as a write-data mask signal. Each bit corresponds to one DQ lane, allowing byte-level write enable/disable without additional address decoding. This enables efficient partial-word updates (e.g., updating only status flags in a 64-byte descriptor) while maintaining full DDR bandwidth efficiency.

Can both 64 Mb dies operate simultaneously in active mode?

No. While the device presents a unified 128 Mb address space, only one die can be active at a time. Concurrent access to both dies is prohibited; the internal arbiter enforces sequential die activation. Linear bursts crossing the 64 Mb boundary are unsupported and will wrap or fault per Section 4.12 of the datasheet.

Is DCARS functionality enabled by default?

No. DCARS (DDR Center-Aligned Read Strobe) is disabled by default. It must be enabled via Configuration Register 0 (CR0[12] = 1) after power-up initialization. When enabled, RWDS transitions are phase-shifted by one CK cycle during reads to maximize data eye centering-critical for reliable operation at 200 MHz in noisy environments.