ME7.4.4, ME7.5, ME7.5.10, ME7.9.6, ME7.9.20. Diesel ECU: EDC7, EDC16 Iveco, and EDC16 S10 Nova.
Double-check the suffix on the part number, as variations may exist for different voltage tolerances or temperature grades.
Luminous intensity / luminous flux: Provided as a typical value and a rank-sorted range at a specified current. White LEDs are typically specified by luminous flux (lm) and color temperature; colored LEDs by luminous intensity in millicandelas (mcd) with viewing-angle specification.
Because these are specialized automotive ICs, standard hobbyist datasheets are rare. Engineers often refer to the
Applicable in communications equipment, industrial controls, and personal electronics requiring robust driver ICs. 2021 Technical Context and Availability nec b58944 datasheet 2021
In the realm of electronic components, few model numbers generate as much targeted interest among repair technicians, hardware enthusiasts, and circuit designers as the . While NEC Corporation (now part of Renesas Electronics after a series of mergers and acquisitions) produced thousands of semiconductor devices, the B58944 has maintained a persistent presence in technical forums, repair guides, and parts sourcing discussions well into 2021 and beyond.
Typically 70ns (indicated by the "-70" suffix in equivalent part numbers like D43256BGU-70Y). Primary Manufacturer: NEC Electronics . Automotive Applications
: The engine cranks but will not start because the ECU cannot initialize its boot sequence.
The component remains available through specialized automotive component suppliers, such as Centralitas ECU, as well as electronic component distributors like Jotrin Electronics. Summary Table Description Component Name NEC B58944 (Often B58944) Component Type Dual-Channel High-Side Controller Package Type Primary Market Automotive (ECU/ECM Repair) Typical ECU Bosch ME7/EDC16 Key Function Solenoid/Injector Driving Luminous intensity / luminous flux: Provided as a
: Bosch EDC16 and related diesel/gasoline automotive engine computer boards. Understanding the Component Role in Bosch ECUs
The NEC B58944 datasheet for 2021 highlights several key features that make this device an attractive choice for designers and engineers. Some of the notable features include:
The (often referred to as the Bosch B58944 ) is a specialized integrated circuit (IC) primarily utilized as an Engine Control Unit (ECU) driver chip . This component is crucial for the operation of various automotive engine management systems, particularly those manufactured by Bosch for brands like Honda and Iveco. Core Technical Specifications
The is a high‑speed 32K x 8‑bit (256 Kbit) CMOS static RAM (SRAM) . Its primary function is to store firmware, configuration data, or sensor‑specific coding (e.g., fuel injector calibrations) within engine control units (ECUs) and other electronic modules [10†L9-L11][19†L4-L6][21†L2-L4]. Engineers often refer to the Applicable in communications
Engine control unit (ECU) repair, specifically as a drive chip for automotive computers.
The (also known as D43256BGU-70Y or μPD43256BGU-70L ) is a specialized 256‑Kbit CMOS SRAM used as a critical memory component in many Bosch engine control units. Although an official “NEC B58944 datasheet 2021” does not exist, all relevant technical data can be obtained from the μPD43256BGU family datasheet , from supplier listings, and from the extensive practical experience documented in automotive ECU repair forums.
: Replacing failed driver chips in older vehicle control modules.