Nec B58944 Datasheet [new] -

This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later. NEC B58944 D43256BGU-70Y BOSCH Auto ECU computer IC

Automotive engine ECU repair and drive functionality.

The R/T characteristic for the B58944 follows the standard NTC curve, which is non-linear. The B-value of 3950K defines the slope of the curve.

Including ME7.4.4, ME7.5, and ME7.9.6 (common in Honda and Volkswagen/Audi groups). nec b58944 datasheet

Factory-new replacement parts sourced from electronics suppliers are completely blank chips containing no predefined code .

In these ECUs, the microcontroller (like an MPC56x series from NXP) needs fast, temporary storage for complex calculations. The onboard flash memory is too slow for real-time data, so the B58944 SRAM is used to provide the necessary speed and capacity for volatile data and program variables.

NEC Corporation (now part of Renesas Electronics). Package Type: SOP-28 (Small Outline Package with 28 pins). Compliance: Lead-free and RoHS compliant. This public link is valid for 7 days

Monitoring battery pack temperatures to prevent over-heating during charging or discharging.

When sourcing a replacement, technicians often look for parts that match the exact timing and voltage requirements. The following parts are considered direct or highly compatible equivalents: μPD43256BGU-70Y Bosch B58944 (Internal Bosch branding) Sourcing and Replacement Tips

Add fresh solder to the pads, then use desoldering wick to clear away the old alloy. Clean the entire area thoroughly with isopropyl alcohol. Can’t copy the link right now

: Internal cell failure within the SRAM array can alter data values, throwing ghost fault codes. 2. Repair and Replacement Protocols

Connected to the load; the metal tab is also internally connected to the drain for cooling.