Nec B58944 Datasheet Free //top\\ Jun 2026

Sites like Jotrin Electronics and Alldatasheet often host partial specifications or technical parameters for legacy NEC parts.

A common alternative for high-side switching.

An integrated high-speed static RAM (SRAM) matrix. This acts as a localized buffer zone for data handling within the ECU, enabling ultra-low latency processing required for timing-critical engine events.

: The 8-bit bi-directional data bus used to send configuration files or live engine telemetry variables.

The SO-28 package of the B58944 typically includes standard SRAM pin configurations: nec b58944 datasheet Free

The is a specialized integrated circuit (IC) primarily utilized in automotive electronics, specifically within Bosch engine control units (ECUs) . Often categorized as an "ECU Driver" or "Diesel Engine Computer Board Chip," it plays a critical role in the processing and management of automotive sensor data and actuator control. Technical Overview & Specifications

The is a specialized automotive Engine Control Unit (ECU) integrated circuit, manufactured as a 256 Kib Parallel SRAM chip equivalent to the NEC Electronics μPD43256BGU-70L . This SOP-28 surface-mount integrated circuit is commonly deployed as a memory buffer and driver chip in BOSCH automotive engine computers . Because this component operates in harsh thermal environments, it frequently suffers from wear, making it a critical component for automotive hardware repair specialists.

: Instead of searching exclusively for NEC B58944 pdf , broaden your query to include NEC D43256BGU datasheet PDF or uPD43256 datasheet .

Typical application circuit(s)

Part: B58944 • SO-28 • datasheet, pdf, info ... - Elparts

It is known as an "easily damaged part" in automotive computers; technicians often seek it for repairing damaged engine ECU boards. 📂 How to Find "Datasheet" Information

NEC Electronics merged with Renesas. While Renesas focuses on current products, their "Support" or "Legacy Products" section sometimes contains decades-old datasheets.

If you are currently troubleshooting a specific module, please let me know you are working on, or if you need help finding an equivalent cross-reference chip for this board. Share public link Sites like Jotrin Electronics and Alldatasheet often host

The search for the is a journey through the golden age of Japanese semiconductors. While this specific part is obscure and likely a custom OEM component, the document does exist somewhere—likely in a dusty service manual or on a retired engineer’s hard drive.

Usually comes in small-outline packages like SO-28 .

The NEC B58944 is a type of N-channel MOSFET (Metal-Oxide-Semiconductor Field-Effect Transistor) designed for high-speed switching applications. Manufactured by NEC Corporation, a renowned Japanese electronics company, this component has gained a reputation for its exceptional performance, reliability, and efficiency.

Understanding how the ECU communicates with sensors and injectors. Where to Find Documentation This acts as a localized buffer zone for