These distributors are your best bet for finding authentic, new-old-stock (NOS) components, though they may require bulk orders and have a more formal procurement process.
, typically found in Bosch systems such as the EDC16 diesel engine computer. In some technical documentation and inventory listings, it is cross-referenced or identified as the D43256BGU-70Y , which is a 256K-bit CMOS Static RAM. Key Technical Specifications Manufacturer Package Type SOP-28 (Small Outline Package, 28-pin) Primary Function ECU Driver / Solid State High-Side Relay Memory Specs 32K words x 8 bits (if identified as D43256BGU) Access Time Voltage Supply 4.5V to 5.5V (Standard CMOS) Operating Temp 0°C to 70°C (Standard) Applications and Features Engine Control:
Websites like Datasheet catalog, Alldatasheet, or Digikey sometimes host extensive archives of electronic component datasheets. nec b58944 datasheet 2021
: 256K bits structured configuration (typically 32K x 8-bit architecture). Electrical & Operational Parameters
The vehicle completely forgets idle-air adaptations, fuel trim corrections, and transmission shift behaviors every time the key is turned off. These distributors are your best bet for finding
Suitable for loads up to 2.7A, with Roncap R sub o n end-sub less than 0.5 Ω.
From real-world discussions on automotive forums, several repair notes are worth mentioning: Suitable for loads up to 2
Engine stalling, cylinder misfire, or failure of specific actuators to operate (e.g., fuel pump, fan).
Officially, none exists. Renesas support (as of 2021) recommends using a cross-reference or a generic TO-220 NPN datasheet.
The B58944 is typically found in high-performance automotive environments. Based on its association with the series, key parameters include: Memory Configuration: 32,768 words 8 bits (if functioning as the SRAM component).