Nec B58944 Datasheet Free Work <2025-2027>

While standard consumer datasheets for this specific part are often proprietary to automotive manufacturers, technical summaries from industrial suppliers highlight several key characteristics:

Do not confuse this with the 2SB589 transistor. The 2SB589 is a PNP power transistor. While the numbers look similar, the B58944 is distinct. Ensure your board actually says "B58944" and not "B589" or "D58944."

Widely used automotive high-side drivers. Conclusion

Used as an interface or driver chip in various Bosch ECU families, including ME7.x (found in many Honda and European vehicles) and EDC16 (common in diesel engines like those in Volvo and Iveco). nec b58944 datasheet Free

: Clean the PCB footprints using a soldering copper wick to create a flat surface for the new chip.

When reviewing the μPD43256B (B58944) datasheet, pay close attention to these parameters: Supply Voltage ( VCCcap V sub cap C cap C end-sub

(Note: Always verify with the specific manufacturer datasheet for exact limits) While standard consumer datasheets for this specific part

Because it's custom, NEC/Renesas will not have a public datasheet. You will need to search by application.

Which (e.g., 0 261 xxx xxx) is on the metal casing?

Below is a draft post for a technical forum or social media group to help others find or understand this component. Ensure your board actually says "B58944" and not

: Provides information about available stock and technical details for the B58944.

When replacing a faulty chip on a salvaged or broken board, note that replacement parts ordered online arrive as unprogrammed blank chips. The ECU's master microcontroller handles formatting and dynamic read/write processes automatically upon boot, meaning manual file flashing to this specific SRAM chip is not required.

If you’re working on a Bosch ME7.5 or EDC16 board, you’ve likely seen this SOP-28 chip. It’s a common failure point in automotive modules, but finding the "official" datasheet for house-numbered parts can be a pain.

Restricts peak current to prevent PCB trace failures.

I understand you're looking for a free datasheet for the . However, I need to let you know that: