Nec B58944 Datasheet Best Jun 2026

The chip's physical format is a . The dimensions are consistent with the JEDEC standard for this package, with a pin spacing (pitch) of 1.27mm. It is also known by other physical codes such as SOP28 or SO28 .

) : -40°C to +85°C (Standard industrial/automotive lower-tier threshold) : -65°C to +150°C Timing and Truth Table Operation

Stalling, non-starting, or intermittent sensor errors can sometimes be traced back to a damaged B58944 chip. ECU Board Repair: nec b58944 datasheet

| Manufacturer | ECU System / Model | Notes | | :--- | :--- | :--- | | | ME7.4.4, ME7.5, ME7.5.10, ME7.9.6, ME7.9.20 | Used in many European and Asian vehicles | | Bosch | EDC7, EDC16 (e.g., EDC16 Iveco) | Diesel engine management systems | | Bosch | EDC16CP33-6.7 (Nissan X-Trail) | As discussed on ECUForum | | Bosch | ME9.7 | Used in various applications |

Including EDC7 and EDC16 (heavy-duty and diesel systems, such as those in Iveco or Volvo trucks). Equivalent and Cross-Reference Parts The chip's physical format is a

We hope this comprehensive article on the NEC B58944 datasheet has provided valuable insights into the device's features, specifications, and applications. If you have any further questions or require additional assistance, please do not hesitate to contact us.

: When sourcing this component, it is often found under the combined identifier NEC B58944 D43256BGU-70Y . The "D43256" reference relates to standard 256K-bit High-Speed CMOS Static RAM layouts, indicating that this chip architecture incorporates dedicated volatile memory registers to buffer engine diagnostic codes, temporary operational data, and real-time sensor parameters before sending them to the central processor. Key Technical Specifications & Package Parameters If you have any further questions or require

Understanding the NEC B58944: A Vital Component for Automotive ECU Repair

[Isolate & Clean Board] -> [Apply Liquid Flux] -> [Hot Air Desolder (350°C)] | [Install New Blank IC] <- [Solder Wick Cleanup] <- [Remove Faulty Component]

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