Infineon Technologies S70KL1282GABHB030

Overview

S70KL1282GABHB030 from Infineon is a 128 Mb self-refresh DRAM (PSRAM) with HYPERBUS™ interface, operating at 1.8 V or 3.0 V VCC/VCCQ, supporting 200 MHz DDR clocking, 400 MBps data throughput, and 24-ball FBGA packaging. It serves as high-bandwidth, low-pin-count external memory for microcontrollers and SoCs in automotive instrument clusters requiring deterministic latency and partial array refresh.

For engineers reviewing the S70KL1282GABHB030 datasheet, S70KL1282GABHB030 pinout, S70KL1282GABHB030 application, or S70KL1282GABHB030 equivalent, key selection criteria include HYPERBUS™ timing compliance, DCARS support, hybrid sleep mode behavior across stacked dies, and AEC-Q100 Grade 2 (–40°C to +105°C) qualification for under-hood automotive use.

Technical Context

The device implements a dual-die stacked architecture (two 64 Mb DRAMs), with independent power control per die - only one die may enter hybrid sleep or deep power down at a time. Its HYPERBUS™ interface uses 8-bit DQ with bidirectional RWDS for read strobe/write mask, and supports optional differential clock (CK/CK#) for noise immunity in high-speed routing.

Refresh management is fully internal: self-refresh logic executes during idle cycles without host intervention, enabling PSRAM-like simplicity. Burst configurations include linear and wrapped modes (16–128 bytes), with DCARS phase-shifting RWDS to align transitions within the read data eye at 200 MHz DDR operation.

Key Specifications

Pinout & Package

24-ball FBGA package (5 mm × 5 mm, 0.8 mm pitch) with ball-out optimized for signal integrity on dense PCBs. Pin functions validated per Infineon datasheet 002-29416 Rev. *D.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar PSRAM/HYPERBUS™ memory applications.

Compared with S27KL0641DPBHB020 and S70KL1282GABHI030, the S70KL1282GABHB030 uniquely delivers AEC-Q100 Grade 2 qualification, DCARS timing enhancement, and per-die power control - critical for automotive safety-critical memory buffering where thermal resilience and signal integrity are non-negotiable.

Availability

S70KL1282GABHB030 is available at Aetrix Electronics and suitable for automotive instrument clusters, ADAS domain controllers, industrial HMIs, and medical imaging front-ends requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S70KL1282GABHB030 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 PSRAM and NOR flash in bandwidth-constrained, pin-limited embedded systems - prioritizing DDR throughput, low-power sleep states, and automotive-grade reliability.

FAQ

Does S70KL1282GABHB030 support true hardware reset recovery without power cycle?

Yes. The RESET# pin triggers a full internal initialization sequence: all configuration registers reset to default values, the memory array enters self-refresh, and the device waits for CS# assertion before accepting new commands. This occurs within 100 µs and requires no VCC ramp-up delay beyond standard power-on reset timing.

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 actively accessed at a time. Concurrent reads/writes to different dies are not supported; interleaving must be managed externally by the host controller through address mapping and timing coordination.

What is the minimum supported burst length for wrapped mode?

The minimum wrapped burst length is 16 bytes (8 clock cycles). This is enforced by the internal command decoder - attempts to configure shorter wrapped bursts result in undefined behavior or command rejection. Linear bursts support single-word (2-byte) accesses.

How does partial array refresh affect real-time performance?

Partial array refresh (e.g., 1/8 or 1/4 array) reduces refresh overhead proportionally: full-array refresh consumes ~15% of bandwidth at 200 MHz, while 1/8 refresh consumes ~1.9%. Hosts can schedule longer idle windows after critical tasks to accommodate refresh without violating real-time deadlines.