Nec B58944 Datasheet Repack Free Jun 2026
While standard consumer datasheets for this specific part are often proprietary to automotive manufacturers, technical summaries from industrial suppliers highlight several key characteristics:
Various diesel models utilizing the EDC16 engine computer. Honda: Specific ME7 series Bosch ECUs.
The NEC B58944 is a versatile component that finds applications in various fields, including:
Given the critical nature of ECU components, this repair should only be attempted by individuals with appropriate surface-mount soldering experience.
The component is often cross-referenced with the part number , suggesting that these numbers may refer to the same underlying device. Some sources even describe the B58944 as equivalent to the μPD43256BGU-70L , which is a 256 Kib SRAM (Static Random Access Memory) produced by NEC Electronics. This indicates that the B58944 may be a custom-marked version of a standard NEC or Infineon component, tailored specifically for automotive ECUs. nec b58944 datasheet Free
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| Parameter | Value / Description | |---|---| | | B58944 | | Common Brands | NEC Electronics, Infineon Technologies AG | | Package / Case | SOP-28 (also known as SOP28 or SO28) | | Typical Function | Dual-channel high-side solid-state relay driver / ECU driver IC | | Operating Temperature Range | -55°C to +125°C | | Maximum Power Rating | 500mW | | Thermal Time Constant | ≤15s | | Dissipation Factor | Approx. 1mW/°C | | Insulation Resistance | ≥100MΩ at 500VDC | | Resistance (R25) | 10kΩ | | B-value | 3950K | | Resistance Tolerance | ±1% |
NEC B58944 is a specialized automotive integrated circuit commonly used in Bosch engine control units (ECUs) . It is an equivalent to the μPD43256BGU-70L , which is a 256 Kib Parallel SRAM chip. Technical Overview : Parallel Static RAM (SRAM). Equivalent Model μPD43256BGU-70L Package Type (32K x 8 bits). Application
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The NEC B58944 boasts an impressive set of features that make it an ideal choice for many applications. Some of its key features include:
The B58944 is widely used in automotive electronics due to its ability to handle multiple loads and provide fault protection. Its primary applications include:
Extensively integrated into ME7.4.4 , ME7.5 , ME7.5.10 , ME7.9.6 , and ME7.9.20 engine computer platforms.
The prominent reason engineers search for the NEC B58944 datasheet is for . While standard consumer datasheets for this specific part
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): Optimized for medium-to-high current amplification and switching. Power Dissipation ( PDcap P sub cap D
: Primarily used as an engine drive chip in automotive ECU circuit boards to handle temporary data storage. Accessing the Datasheet
The NEC B58944 is not a generic consumer semiconductor; it is an automotive-grade proprietary iteration of the classic . The component is often cross-referenced with the part