Nec B58944 Datasheet Free |link| Jun 2026

✅ Real Identity: It's a 256K CMOS SRAM ($\mu$PD43256BGU).✅ Package: SOP-28.✅ Common in: Honda, Iveco, and VW/Audi Bosch units.

The B58944 is frequently found in the following vehicle control modules: XC70 (2.4 D) and XC90. nec b58944 datasheet Free

The (often associated with part number D43256BGU-70Y ) is a critical integrated circuit (IC) primarily used as an automotive engine ECU (Electronic Control Unit) computer chip . It is most frequently found in Bosch automotive engine ECUs and serves as an engine drive or memory component. Technical Overview Role : Engine drive chip / ECU memory replacement. Associated Part Number : D43256BGU-70Y. ✅ Real Identity: It's a 256K CMOS SRAM ($\mu$PD43256BGU)