Nec B58944 Datasheet ((full)) Free Jun 2026
The NEC B58944 is generally recognized as a or ECU driver IC housed in a SOP-28 (Small Outline Package) or similar surface-mount package. Its primary role in automotive systems is to manage power distribution to various components (solenoids, relays, lamps) under the control of a central microcontroller. Key Features and Specifications
Low-power, fast access timing designed for microcontrollers.
. While often labeled with this Bosch-specific part number, it is functionally equivalent to the NEC μPD43256BGU-70L Technical Overview The chip is a high-speed, low-power CMOS Static RAM (SRAM)
Searching for "NEC B58944" yields poor results because you are asking for a datasheet from the wrong manufacturer. You must pivot your search to "EPCOS B58944" or "TDK B58944."
Typically available in a SOP-28 (Small Outline Package) , making it suitable for high-density automotive circuit boards. nec b58944 datasheet Free
While exact absolute maximum ratings depend on the targeted Bosch system hardware layout, the standard operational metrics of this driver IC family include: Metric Parameter Standard Operational Value SOP-28 Surface Mount Logic Supply Voltage ( VCCcap V sub cap C cap C end-sub ) 4.5V to 5.5V DC High-Side Load Voltage ( VBatcap V sub cap B a t end-sub ) Up to 14V nominal (Automotive rail) Working Temperature Range -40°C to +125°C (Extended industrial/automotive) Typical Target Platforms Bosch Motronic ME7.x series 🚘 Vehicle Applications and Supported Platforms
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Note: The "Commercial" temperature grade suggests this component was primarily used in vehicle infotainment or body control systems.
Assuming you correct the manufacturer to , here is what the datasheet for the B58944 typically covers: The NEC B58944 is generally recognized as a
Searching for a "NEC B58944 datasheet free" allows engineers, technicians, and repair specialists to acquire the essential technical specifications, pin configurations, and operational parameters needed for design or repair.
Based on the part number , this component is a High-Voltage Monolithic IC (Hybrid IC) designed specifically for Electroluminescent (EL) Lamp Backlight Drivers . These are commonly used to illuminate LCDs in automotive dashboards, PDAs, and older mobile phones.
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Activating relays for fuel pumps, cooling fans, and lighting systems. While exact absolute maximum ratings depend on the
The most critical finding in this review is the manufacturer attribution.
The SOP-28 package allows for several I/O pins, designed for high-density applications. While the exact pinout can differ slightly between manufacturers, typical high-side drivers include:
: Active-low input. Directs the chip to output stored memory matrix values onto the I/O bus.
The is a specialized integrated circuit (IC) primarily utilized in automotive electronics, specifically within Bosch engine control units (ECUs) . Often categorized as an "ECU Driver" or "Diesel Engine Computer Board Chip," it plays a critical role in the processing and management of automotive sensor data and actuator control. Technical Overview & Specifications
The (commonly paired with the full manufacturer part number D43256BGU-70Y ) is a highly specialized, legacy Static Random-Access Memory (SRAM) integrated circuit packaged in a SOP28 form factor , heavily used in Bosch automotive Engine Control Units (ECUs) and advanced industrial computing boards. If you are looking for the NEC B58944 datasheet free of charge, finding authoritative documentation requires understanding its underlying architecture, pinout configurations, and substitute parameters.