Nec B58944 Datasheet

: Lead-free and RoHS compliant versions are available. Common Applications

| Your Goal | Action | | :--- | :--- | | | Look for a shorter code on the component (e.g., "C945", "A733"). Ignore "B58944" if it appears as a single line. | | Get the datasheet | Search that shorter code + "NEC" on Alldatasheet. | | Understand the datasheet | Focus on Absolute Max, Electrical Characteristics, and Pinout. | | Still no datasheet? | The part is likely a custom-marked OEM component. Find the device's service manual instead. | nec b58944 datasheet

If you can share a or tell me what device it came from (make/model of the equipment), I may be able to identify a cross-reference or actual datasheet. : Lead-free and RoHS compliant versions are available

The "B58944" designation is a Bosch-specific house part number. The original manufacturer part is the NEC $\mu$PD43256BGU-70Y Component Type : 256K-bit CMOS Static RAM (SRAM). Configuration : 32K words : SOP-28 (Small Outline Package with 28 pins). Speed Grade : 70ns access time (indicated by the "-70" suffix). Supply Voltage : Typically 5V (standard for the $\mu$PD43256 series). Datasheet Documentation NEC B58944 D43256BGU-70Y BOSCH Auto ECU computer IC | | Get the datasheet | Search that

: Frequently used in Honda, Volvo (e.g., XC70, XC90), and Iveco engine management systems. Repair and Replacement

Do not assume a generic substitute without the real datasheet. NEC parts often have unique switching speeds, gain bandwidths, or isolation voltages. If you need help, reply with a clear photo of the component and the device it came from (e.g., "Sony radio model XR-C5100").