Nec B58944 Datasheet !!hot!! May 2026

Since I cannot browse the live internet to retrieve a specific copyrighted PDF document, I have compiled the technical specifications for the NEC B58944 based on its standard identity as a Bluetooth SiP (System in Package) Module.

Availability: You can find replacements on AliExpress and eBay for relatively low costs.

The NEC B58944 datasheet provides detailed information on the IC's features and specifications. Some of the key features include: nec b58944 datasheet

Where to find datasheet / more details

Instead of replacing an entire expensive ECU, many specialized shops replace this specific IC to restore functionality. Important Repair Note Since I cannot browse the live internet to

Speed Grade: Indicated by the "-70" suffix in its equivalent part numbers, signifying a 70ns access time.

Automotive Voltage Regulator – Japanese car radios and ECUs from the late 1980s (Toyota, Nissan, Honda) often featured NEC hybrids for 8V or 5V regulation from the car battery. Some of the key features include: Where to

Audio Preamplifiers: Thanks to its low-noise characteristics and PNP polarity.

2. Part Number Analysis

NEC part numbers generally follow structured formats. B58944 does not match common NEC logic families (e.g., µPD for microcontrollers, 2SC/2SA for transistors, or Dxxxx for diodes). It resembles: