Nec B58944 Datasheet -
The you are working on.
The module communicates using standard HCI packets:
Automotive engine ECU repair and drive functionality.
The NEC B58944 is engineered to withstand the extreme environmental conditions of an engine bay, including high thermal cycles, voltage spikes, and mechanical vibration. Core Architecture and Specifications : NEC (Nippon Electric Company) nec b58944 datasheet
While the component is a proprietary system-on-chip variant for automotive tier-1 suppliers, its physical and electronic boundaries comply with standard industry form factors. Specifications & Details NEC Corporation (Semiconductor Division) Package Type SOP-28 (Small Outline Package, 28-Pin) Mounting Style Surface Mount Device (SMD / SMT) Memory Buffer Group
Due to its role in high-stress automotive environments, it is categorized as an "easily damaged part" on ECU circuit boards. Repairing a faulty unit often involves desoldering the damaged B58944 and replacing it with a new IC to restore engine computer functionality.
Scrub away any leftover flux residue to prevent future moisture corrosion. Inspect your work under magnification to confirm there are no solder bridges between adjacent pins. Purchasing and Sourcing Tips The you are working on
): Low junction-to-case resistance to allow for massive heat transfer to a heatsink. Common Applications
The NEC B58944 is a high-performance amplifier IC that offers a unique combination of high slew rate, wide bandwidth, and low noise. Its versatility and high performance make it suitable for use in a variety of applications, including audio equipment, instrumentation, and communication systems. By reviewing the NEC B58944 datasheet, designers and engineers can gain a comprehensive understanding of the IC's features, specifications, and application areas, enabling them to design and develop high-performance analog circuits.
Fully cross-compatible with NEC Electronics code μPD43256BGU-70L and μPD43256BGU-70Y . Core Architecture and Specifications : NEC (Nippon Electric
Based on 256K SRAM architecture (70ns access time implied by -70Y) Bosch Auto ECU computer IC (Engine Actuator Driver) Programming Status
Always use a gate resistor to dampen oscillations and protect against voltage spikes.
: Specializes in automotive ECU drivers and replacement components.
Found inside heavy-duty diesel modules like the EDC7 and EDC16 platforms used by Iveco.



