Infineon Technologies S70KL1283DPBHB023

Overview

S70KL1283DPBHB023 from Infineon is a 128 Mb self-refresh DRAM (PSRAM) with octal xSPI interface, operating at 1.8 V or 3.0 V supply, supporting up to 200 MHz DDR clock rate and delivering 400 MBps data throughput. It integrates two 64-Mb stacked dice, features configurable burst lengths (16–128 bytes), hybrid sleep and deep power down modes, and is qualified for industrial (–40°C to +85°C) and automotive AEC-Q100 Grade 3 applications.

For engineers reviewing the S70KL1283DPBHB023 datasheet, S70KL1283DPBHB023 pinout, S70KL1283DPBHB023 application, or S70KL1283DPBHB023 equivalent, key selection considerations include its octal xSPI timing compliance, RWDS-based read/write strobe behavior, partial array refresh capability, DCARS support for read-data eye alignment, and dual-voltage interface flexibility in memory-constrained embedded systems.

Technical Context

The device implements a stacked-die architecture with independent control of two 64-Mb DRAM arrays, enabling selective entry into Hybrid Sleep or Deep Power Down per die. Its xSPI interface supports both single-ended (11-signal) and optional differential clock (12-signal) configurations, with RWDS serving as bidirectional strobe-output during reads (including refresh latency indication) and input as write mask.

Timing is DDR-aligned with CK/CK#; DCARS provides phase-shifted read strobe for center-aligned sampling. Burst modes include linear and wrapped (8/16/32/64 clocks), and configuration registers (CR0/CR1) allow runtime tuning of drive strength, burst type, and power mode behavior without host refresh management.

Key Specifications

Pinout & Package

24-ball FBGA (5 mm × 5 mm, 0.8 mm pitch), RoHS-compliant, with 12 signal pins (including optional CK#/RWDS/DCARS), 2 power (VCC/VCCQ), 2 ground (VSS), and 8 I/O (DQ[7:0]).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S70KL1283DPBHB023, the Cypress alternative offers register compatibility within the same vendor ecosystem but demands driver updates, while the Winbond part trades bandwidth and advanced strobe features for broader availability-making Infineon's device optimal for new designs prioritizing timing margin and per-die power efficiency.

Availability

S70KL1283DPBHB023 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMIs, edge AI vision processors, and wireless video streaming modules requiring stable component supply across extended temperature ranges and long product lifecycles.

Supply support for S70KL1283DPBHB023 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.

The HYPERRAM™ product line delivers high-speed, low-pin-count PSRAM alternatives to parallel SRAM and LPDDR, targeting memory bandwidth-constrained microcontroller and SoC applications where simplicity and reliability outweigh raw density.

FAQ

What is the difference between S70KL1283DPBHB023 and standard DRAM?

S70KL1283DPBHB023 integrates self-refresh logic and an octal xSPI interface, eliminating external refresh commands and complex timing control. Unlike standard DRAM, it behaves like static RAM to the host-no row/column addressing, no precharge or activate commands-and supports simple burst reads/writes over a minimal 11-signal bus.

Does S70KL1283DPBHB023 require external termination resistors?

No external termination resistors are required. The device includes programmable output drive strength (configurable via CR1 register) and supports on-die termination for DQ and RWDS signals when enabled, simplifying PCB layout and improving signal integrity at 200 MHz DDR speeds.

Can both 64-Mb dice operate simultaneously in active mode?

No. While the device contains two stacked 64-Mb dice, only one die can be accessed at a time. Address space is contiguous across both dice, but internal arbitration prevents concurrent activation-ensuring deterministic timing and avoiding inter-die contention during read/write operations.

How does RWDS function during a READ transaction with DCARS enabled?

With DCARS enabled, RWDS transitions are phase-shifted by one-half CK period relative to the main clock, positioning the strobe edge at the center of the read data eye. This improves timing margin for reliable data capture at 200 MHz DDR, especially under voltage/temperature variation, without requiring host-side delay tuning.