Infineon Technologies S70KL1282DPBHA020

Overview

S70KL1282DPBHA020 from Infineon is a 128 Mb pseudo-static RAM (PSRAM) with self-refresh DRAM core, HYPERBUS™ DDR interface, 1.8 V/3.0 V dual-supply support, 200 MHz max clock rate, and 24-ball FBGA package. It serves as high-bandwidth external memory for microcontrollers and SoCs in automotive instrument clusters, industrial HMIs, and AI edge inference accelerators requiring low-latency, burst-access memory without host-managed refresh.

For engineers reviewing the S70KL1282DPBHA020 datasheet, S70KL1282DPBHA020 pinout, S70KL1282DPBHA020 application, or S70KL1282DPBHA020 equivalent, key selection criteria include HYPERBUS™ timing compliance, DCARS-enabled read strobe alignment, hybrid sleep mode current (330 µA @ 2.0 V), 35 ns tACC, and AEC-Q100 Grade 2 (–40°C to +105°C) qualification.

Technical Context

This PSRAM implements a stacked-die architecture (two 64 Mb dies) with independent power control per die. Its HYPERBUS™ interface uses 8-bit DQ lines with bidirectional RWDS for read-data strobe and write-data mask, plus optional differential CK/CK# for jitter resilience.

The device supports linear and wrapped burst lengths (16–128 bytes), configurable output drive strength, and partial array refresh (1/8 to full). DCARS functionality phase-shifts RWDS by one clock cycle during reads to center-align transitions within the data eye at 200 MHz DDR operation.

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 applications.

Compared with S70KL1281DPBHA020, this part delivers tighter 35 ns tACC and guaranteed DCARS support for robust 200 MHz operation; versus S27KL1282DPBHA020, it offers identical performance with updated Infineon branding and lifecycle assurance.

Availability

S70KL1282DPBHA020 is available at Aetrix Electronics and suitable for automotive digital instrument clusters, industrial HMIs, and edge AI inference accelerators requiring stable component supply with AEC-Q100 Grade 2 qualification and long-term production continuity.

Supply support for S70KL1282DPBHA020 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.

This part belongs to the HYPERRAM™ product line, designed specifically to replace parallel NOR/NAND and low-density DDR in MCU- and SoC-based systems where board space, signal count, and power efficiency are constrained.

FAQ

What is the purpose of the RWDS signal in S70KL1282DPBHA020?

RWDS is a bidirectional strobe used as a read-data strobe (output) and write-data mask (input). During reads, it aligns with data edges; with DCARS enabled, it is phase-shifted by one clock to center in the data eye. During writes, it masks individual DQ bits. Its timing directly governs setup/hold margins for reliable 200 MHz DDR transfers.

Does S70KL1282DPBHA020 require external refresh management?

No. The device contains on-die self-refresh logic that automatically maintains data integrity without host intervention. The host only needs to observe initial access latency indications and limit burst length per JEDEC HYPERRAM™ v2.0 specification - enabling SRAM-like software abstraction despite DRAM core.

Can both 64 Mb dies operate simultaneously in hybrid sleep mode?

No. Per datasheet Note 1, only one die at a time can enter hybrid sleep or deep power down mode. The second die remains active or must be placed in its own power state. This constraint requires software coordination when managing memory regions across die boundaries.

What is the significance of the "PBH" suffix in S70KL1282DPBHA020?

The "PBH" denotes the 24-ball FBGA package (5 × 5 mm, 0.8 mm pitch) with lead-free, halogen-free construction and moisture sensitivity level 3. The "A020" indicates revision level and temperature grade - here, AEC-Q100 Grade 2 (–40°C to +105°C) qualification with 1.8 V/3.0 V VCC/VCCQ support.