Nec B58944 Datasheet Free !free! Jun 2026

: Portals like AllDatasheet or DatasheetCatalog hold comprehensive original scanning sheets for NEC's entire 1990s memory lineup free of charge.

Parts are sometimes available via specialist electronics brokers like Jotrin Electronics Ecufixtool

Accessing a free datasheet ensures repair technicians, electronics hobbyists, and automotive engineers can successfully map pin configurations, debug circuit boards, and identify valid substitute components. Core Specifications and Technical Parameters

If you are searching for a "NEC B58944" datasheet, you are likely hitting a dead end. The model number is most commonly associated with EPCOS/TDK (a partner/competitor to NEC in the semiconductor space), not NEC itself.

Their Grade B58944 is an ashless, slow, thin filter paper used for gravimetric analysis. It has no relation to the electronic component. nec b58944 datasheet Free

If you need a replacement, vendors like Jotrin Electronics maintain inventory and basic product detail pages for this specific OEM number. Important Note for Repairs

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Place the fresh NEC B58944 component onto the pads. Ensure Pin 1 aligns perfectly with the orientation dot or notch marked on the PCB silkscreen.

The is an integrated circuit (IC) primarily used as an automotive engine driver chip in Bosch Engine Control Units (ECUs) . It is widely identified as being functionally equivalent to the $\mu$PD43256BGU-70L (or -70Y), which is a 256 Kib Parallel Static RAM (SRAM) chip . Key Specifications Manufacturer: NEC Corporation (now part of Renesas) . The model number is most commonly associated with

: While direct "Free PDF" links for this specific part are scarce on major aggregators, you can often find them by searching for the part on specialized databases such as AllDatasheet .

Because "B58944" is an OEM-specific number, finding a "free" datasheet is easiest by searching for its industry-standard equivalent, the μPD43256B www.dcddcc.com Standard Datasheet:

Typically available in a SOP-28 (Small Outline Package) , making it suitable for high-density automotive circuit boards.

Verification sheets and stock specs are hosted directly on aggregate platforms like the Jotrin Electronics B58944 Registry or structural catalogs on UTSOURCE . If you need a replacement, vendors like Jotrin

Utilized across industrial powertrain platforms including the EDC7 and EDC16 controllers found in Iveco and Nova S10 fleet vehicles.

Because the underlying core is a 32K x 8 SRAM, the SOP28 pinout layout maps consistently to standard JEDEC configurations for 256K SRAMs. Below is the technical pin breakdown required for circuit probing or board-level replacement: Pin Number Signal Name Description A0 – A14 Address Lines (15 lines required to address 32K locations) 11-13, 15-19 I/O1 – I/O8 Input/Output Data Lines (8-bit bi-directional data bus) 14 Ground Reference 20 /CE or /CS Chip Enable / Chip Select (Active Low) 22 Output Enable (Active Low) 27 Write Enable (Active Low) 28 Main Power Supply (+5V Typical for legacy automotive) Critical Applications in Automotive Diagnostics

within automotive Engine Control Units (ECUs), particularly those manufactured by . Often identified alongside the part number D43256BGU-70Y