Nec B58944 Datasheet Extra Quality

The NEC B58944 is a high-performance power semiconductor, typically classified as a N-Channel Enhancement Mode MOSFET or a specialized power transistor used in industrial and automotive applications. Finding the specific datasheet requires understanding its electrical limits and thermal characteristics to ensure system stability.

After an exhaustive search of current technical databases (including NEC/Renesas archives, Octopart, Alldatasheet, and manufacturer catalogs), no publicly available datasheet exists for a part labeled exactly "NEC B58944". This part number does not match NEC's standard naming conventions for ICs, transistors, diodes, or optocouplers.

At high currents, the B58944 generates significant heat. Ensure the copper trace area is sufficient or use an external aluminum heatsink.

In the world of electronic components, finding accurate and detailed documentation is crucial for engineers, hobbyists, and procurement specialists. One part number that frequently surfaces in legacy systems, repair forums, and surplus component inventories is the . While NEC (now part of Renesas Electronics) produced millions of semiconductors, some part numbers remain shrouded in partial documentation. This article serves as a comprehensive resource for the NEC B58944 datasheet , covering its likely specifications, typical applications, pinout configuration, electrical characteristics, and sourcing alternatives. nec b58944 datasheet

The B58944 is commonly found in Bosch ECUs used by various automotive brands, including . Specific ECU models that may utilize this or similar driver ICs include: Bosch ME7.4.4, ME7.5, ME7.9.6

: Active LOW. Gates data from the I/O pins into the selected memory cell. 26

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. NEC B58944 ECU DRIVER SOP-28 - Inovauto.com The NEC B58944 is a high-performance power semiconductor,

Including ME7.4.4, ME7.5, ME7.9.6, and ME7.9.20.

The primary direct equivalent is the , with other -LL (very low power) versions like the UPD43256BGU-70LL also potentially compatible depending on power requirements.

You can find replacements on AliExpress and eBay for relatively low costs. This part number does not match NEC's standard

Disclaimer: This paper is a synthesis of available technical data for the B58944 component class. Variations in firmware and hardware revisions exist. Always consult the specific manufacturer datasheet for your exact batch before production.

| Parameter | Specification | | :--- | :--- | | | 32,768 words × 8 bits | | Total Capacity | 262,144 bits (256 Kib) | | Access Time (Max) | 70 ns (for the -70L version) | | Supply Voltage (VCC) | 4.5 V to 5.5 V for standard operation | | Standby Current | 50 μA (max) for LL version, 3 μA (max) for L version | | Data Retention VCC | 2.0 V (min) | | Operating Ambient Temp | 0°C to 70°C (for the standard -70L version) | | Package | 28-pin Plastic SOP (450 mil / 11.43 mm wide) |

have traded "verified" pinout diagrams and replacement tips like secret maps to buried treasure. The Specialty Market:

Understanding its pin configuration, electrical behavior, and architectural limits is crucial for diagnosing physical faults, sourcing direct replacements, or constructing bench-test environments. Technical Overview and Specifications

Includes the ME7.4.4, ME7.5, ME7.5.10, ME7.9.6, and ME7.9.20 controllers used extensively by Honda, Volkswagen, and Audi.