Infineon Technologies S70KL1283GABHI023

Overview

S70KL1283GABHI023 from Infineon is a 128 Mb self-refresh DRAM (PSRAM) with octal xSPI interface, operating at 1.8 V or 3.0 V, supporting up to 200 MHz DDR clocking and delivering 400 MBps data throughput. It integrates dual 64-Mb stacked dice, features configurable burst lengths (16–128 bytes), hybrid sleep and deep power down modes, and targets memory expansion in resource-constrained embedded systems requiring low-latency, high-bandwidth external RAM.

For engineers reviewing the S70KL1283GABHI023 datasheet, S70KL1283GABHI023 pinout, S70KL1283GABHI023 application, or S70KL1283GABHI023 equivalent, key selection criteria include xSPI octal bus compatibility, 24-ball FBGA package fit, industrial temperature support (–40°C to +85°C), RWDS-based timing alignment, and partial array refresh capability for power-sensitive real-time applications.

Technical Context

The device implements a true self-refresh DRAM core with on-die refresh control logic, eliminating host-managed refresh cycles while presenting a PSRAM-like interface. Its xSPI octal protocol supports command/address/data multiplexing over DQ[7:0], with optional differential clock (CK/CK#) and bidirectional RWDS used as read strobe/write mask - enabling precise DDR timing alignment via DCARS phase-shifted strobe generation.

It uses a stacked-die architecture (two 64-Mb dies), where only one die may enter Hybrid Sleep or Deep Power Down at a time. Memory access is managed through linear or wrapped burst modes, with configurable drive strength and register-accessible configuration registers (CR0/CR1) for latency, burst type, and power mode control.

Key Specifications

Pinout & Package

24-ball FBGA package (5 × 5 mm, 0.8 mm pitch) with ball grid layout optimized for signal integrity in high-speed xSPI routing. Pin functions conform to Infineon's standardized HYPERRAM™ octal interface definition.

Key Features

Applications

Equivalent & Alternatives

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

Compared with S27KL0641DPBHI020 and W9825G6JH-6I, the S70KL1283GABHI023 delivers double density, higher bandwidth, lower pin count, and autonomous power management - making it optimal for next-generation xSPI-native SoCs where board space, power, and timing predictability are critical.

Availability

S70KL1283GABHI023 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMIs, edge AI sensor nodes, and video streaming gateways requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S70KL1283GABHI023 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 IATF 16949.

This part belongs to the HYPERRAM™ product line, designed specifically to replace parallel SRAM and low-density DDR in MCU- and SoC-based systems where xSPI interface adoption enables scalable, pin-efficient memory expansion.

FAQ

Does S70KL1283GABHI023 require external refresh circuitry?

No. The device contains fully autonomous self-refresh logic that manages DRAM array refresh internally without host intervention. The host accesses it as a PSRAM - issuing standard xSPI read/write commands only - while the device handles all timing-critical refresh cycles transparently during idle periods or in Hybrid Sleep mode.

What is the function of the RWDS pin in read versus write operations?

In read operations, RWDS outputs a center-aligned strobe (optionally phase-shifted via DCARS) to sample DQ data; in write operations, it serves as a write mask input, allowing selective byte enabling on the DQ bus. This dual-role eliminates the need for a dedicated DQS signal and reduces interface complexity compared to traditional DDRx protocols.

Can both 64-Mb dies operate independently in different power modes?

Yes. The stacked-die architecture allows independent power mode control: one die can remain active while the other enters Hybrid Sleep or Deep Power Down. This is enabled via die-select bits in Configuration Register 1 and supports asymmetric memory usage patterns - for example, keeping configuration data active while suspending bulk buffer storage.

Is the 24-ball FBGA package compatible with standard reflow profiles?

Yes. The 24-ball FBGA (5 mm × 5 mm, 0.8 mm pitch) follows IPC-7351B footprint guidelines and is qualified for standard lead-free reflow profiles (J-STD-020). Thermal resistance (θ_JA) is specified at 52°C/W, and board layout recommendations - including thermal pad grounding and signal routing symmetry - are provided in Infineon's AN22774 application note.