The is a specialized integrated circuit (IC) primarily utilized as an ECU driver within automotive engine management systems. It is technically equivalent to the $\mu$PD43256BGU-70Y , a 256 Kib Parallel SRAM. Technical Overview and Specifications
| Parameter | Value (when known) | |-----------|--------------------| | Manufacturer | NEC / Renesas | | Part number | B58944 (verify) | | Part family | ? | | Package | ? | | Pin count | ? | | Operating voltage | ? | | Supply current | ? | | Key features | ? | | Datasheet release | 2021 (if confirmed) | | Status | ? (Active / EOL) | nec b58944 datasheet 2021
NEC Corporation (now part of Renesas Electronics). Package Type: SOP-28 (Small Outline Package with 28 pins). The is a specialized integrated circuit (IC) primarily
. It is often identified as a "driver chip" or memory chip that can be replaced to repair damaged ECU circuit boards. Programming | | Package |
While the "2021" designation in your query may refer to updated inventory records or specific 2021 datasheet revisions from distributors like Jotrin Electronics or Elparts , the core technology remains an established standard in legacy automotive electronics. NEC B58944 ECU DRIVER SOP-28 - Inovauto.com
