Nec B58944 Datasheet [verified] -

B58944

While the NEC could refer to a variety of internal manufacturing codes, in the world of automotive electronics and semiconductor repair, it is most widely recognized as a specialized integrated circuit (IC) used in Bosch Engine Control Units (ECUs) .

Vehicle Compatibility:

Used in Bosch-equipped computers for Honda , Mercedes-Benz , Volvo (XC70/XC90), and Iveco . Repair & Sourcing Tips nec b58944 datasheet

Stalling, non-starting, or intermittent sensor errors can sometimes be traced back to a damaged B58944 chip. ECU Board Repair: B58944 While the NEC could refer to a

5. Typical Application Circuit

2. Absolute Maximum Ratings ($T_a = 25^\circ C$)

• A custom or ODM part number (e.g., for a hybrid IC, display driver, or module).
• An internal marking code rather than a full manufacturer’s ordering number.
• Possibly a misreading of B5894 (single transistor?) or B58944 as a lot/batch code.