The , alternatively designated under the industry standard memory cross-reference D43256BGU-70Y , is a specialized integrated circuit (IC) primarily utilized as an automotive Engine Control Unit (ECU) driver chip and high-reliability static RAM (SRAM) memory bank module. The component serves a critical role in the hardware architecture of vintage and modern vehicle engine management systems, most notably in premium European platforms like Mercedes-Benz and Bosch engine computer boards . The 2021 technical documentation updates clarify its parameters, testing thresholds, and alternative circuit substitutions for automotive diagnostic technicians and component-level repair specialists. Core Technical Specifications

: High-speed CMOS Static RAM / Bosch Engine Management Interface.

The “B58944” marking is the , which appears on the physical chip alongside the manufacturer’s own NEC part code , D43256BGU-70Y (or similar variants like μPD43256BGU-70L ) [0†L5][0†L8-L9][20†L3][24†L11]. That’s why you will often see listings, forum threads, and spare‑part sites referring to the chip as NEC B58944 D43256BGU-70Y or μPD43256BGU-70L . The different suffixes (–70Y, –70L, –70LL) represent the same 256 Kbit SRAM core but may indicate minor variations in speed grade, packaging date code, or temperature range.

: In automotive contexts, it serves as a driver or memory buffer for Engine Control Units (ECUs), often found in Bosch or other European automotive modules. Package Style : SOP-28 (Small Outline Package with 28 pins). Memory Density : 256 Kilobits (32K x 8 bits).

): Gates incoming data write-signals to memory cells when pulled low. Power Supply ( VCCcap V sub cap C cap C end-sub

An exact “NEC B58944 datasheet 2021” does not exist, but the component is a member of the family of 256‑Kbit CMOS SRAMs. By studying the D43256BGU datasheet (a widely available 24‑page document for the NEC SRAM family), we can infer the electrical and timing parameters that apply to the B58944 [23†L1-L12].

Preview of Propisi Regular

Nec B58944 Datasheet 2021 -

The , alternatively designated under the industry standard memory cross-reference D43256BGU-70Y , is a specialized integrated circuit (IC) primarily utilized as an automotive Engine Control Unit (ECU) driver chip and high-reliability static RAM (SRAM) memory bank module. The component serves a critical role in the hardware architecture of vintage and modern vehicle engine management systems, most notably in premium European platforms like Mercedes-Benz and Bosch engine computer boards . The 2021 technical documentation updates clarify its parameters, testing thresholds, and alternative circuit substitutions for automotive diagnostic technicians and component-level repair specialists. Core Technical Specifications

: High-speed CMOS Static RAM / Bosch Engine Management Interface. nec b58944 datasheet 2021

The “B58944” marking is the , which appears on the physical chip alongside the manufacturer’s own NEC part code , D43256BGU-70Y (or similar variants like μPD43256BGU-70L ) [0†L5][0†L8-L9][20†L3][24†L11]. That’s why you will often see listings, forum threads, and spare‑part sites referring to the chip as NEC B58944 D43256BGU-70Y or μPD43256BGU-70L . The different suffixes (–70Y, –70L, –70LL) represent the same 256 Kbit SRAM core but may indicate minor variations in speed grade, packaging date code, or temperature range. The , alternatively designated under the industry standard

: In automotive contexts, it serves as a driver or memory buffer for Engine Control Units (ECUs), often found in Bosch or other European automotive modules. Package Style : SOP-28 (Small Outline Package with 28 pins). Memory Density : 256 Kilobits (32K x 8 bits). Core Technical Specifications : High-speed CMOS Static RAM

): Gates incoming data write-signals to memory cells when pulled low. Power Supply ( VCCcap V sub cap C cap C end-sub

An exact “NEC B58944 datasheet 2021” does not exist, but the component is a member of the family of 256‑Kbit CMOS SRAMs. By studying the D43256BGU datasheet (a widely available 24‑page document for the NEC SRAM family), we can infer the electrical and timing parameters that apply to the B58944 [23†L1-L12].

Sponsored Links