Infineon Technologies S70KL1283DPBHB020

Overview

S70KL1283DPBHB020 from Infineon is a 128 Mb pseudo-static RAM (PSRAM) based on self-refresh DRAM architecture, featuring an octal xSPI interface, dual-voltage support (1.8 V/3.0 V), 200 MHz max clock rate, and 400 MBps data throughput. It serves as high-bandwidth, low-latency external memory for microcontrollers and SoCs in embedded vision, industrial HMI, and automotive infotainment systems where SRAM density and DRAM efficiency are both critical.

For engineers reviewing the S70KL1283DPBHB020 datasheet, S70KL1283DPBHB020 pinout, S70KL1283DPBHB020 application, or S70KL1283DPBHB020 equivalent, key selection criteria include xSPI octal timing compliance, RWDS strobe behavior under DDR read/write, configurable burst lengths (16–128 bytes), hybrid sleep/deep power down current specs (330–360 µA), and FBGA-24 package compatibility with high-density PCB layouts.

Technical Context

This PSRAM integrates two stacked 64 Mb DRAM dies sharing a single xSPI controller and I/O bus, enabling linear or wrapped burst access across die boundaries only within the same die - cross-die linear bursts are unsupported. Its self-refresh logic autonomously manages array refresh without host intervention, presenting static-like behavior to the controller.

The device supports optional differential clock (CK/CK#) and DDR center-aligned read strobe (DCARS), where RWDS is phase-shifted relative to CK to align its transition edge within the read data eye. It implements four partial refresh granularities (1/8, 1/4, 1/2, full) and two independent low-power modes: Hybrid Sleep and Deep Power Down - each active on one die at a time.

Key Specifications

Pinout & Package

Package: 24-ball FBGA (5 mm × 5 mm, 0.8 mm pitch), RoHS-compliant, industrial-plus temperature grade (–40°C to +105°C).

Key Features

Applications

Equivalent & Alternatives

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

Compared with S27KL1283DPBHB020 and W9825G6JH-15, the S70KL1283DPBHB020 uniquely combines octal xSPI simplicity, 35 ns access, and DCARS-enabled timing robustness - making it optimal for new designs targeting 200 MHz DDR performance with minimal controller overhead.

Availability

S70KL1283DPBHB020 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial HMI displays, edge AI vision preprocessing, and medical imaging control panels requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S70KL1283DPBHB020 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 embedded systems needing SRAM-like ease-of-use with DRAM-level density and cost efficiency - specifically optimized for MCU- and SoC-based applications with limited pin count and no DDR PHY resources.

FAQ

Does S70KL1283DPBHB020 require external refresh commands from the host controller?

No. The device contains autonomous self-refresh circuitry that maintains DRAM cell charge without host intervention. The host sees only xSPI transactions - reads, writes, and configuration - with no refresh scheduling or timing constraints imposed on software or hardware design.

What is the functional difference between Hybrid Sleep and Deep Power Down modes?

Hybrid Sleep retains data in one die while allowing the other die to remain active for background operations; Deep Power Down powers down one die completely, reducing current to 330–360 µA. Both modes are die-selective and do not affect the powered die's data retention or accessibility.

Can RWDS be used as a pure read strobe without DCARS enabled?

Yes. In standard mode, RWDS functions as a unidirectional read data strobe aligned with CK edges. DCARS is an optional enhancement that introduces a fixed 1-cycle phase shift to center RWDS transitions in the read data eye - it must be explicitly enabled via Configuration Register 0 (CR0[10]).

Is the 24-ball FBGA package compatible with standard reflow profiles for lead-free assembly?

Yes. The S70KL1283DPBHB020 uses a JEDEC-standard 24-ball FBGA (5 × 5 mm, 0.8 mm pitch) qualified for IPC/JEDEC J-STD-020D reflow profiles, including peak temperatures up to 260°C for 30 seconds, and meets RoHS and REACH compliance requirements.