Nec B58944 Datasheet

When purchased as a replacement part, the chip is "empty" (it does not contain pre-programmed engine software, as it is volatile RAM, not ROM/Flash). 5. Technical Equivalents

Once you have the true part number (e.g., NEC 2SC945, NEC PS2561, NEC uPD78F0537), use this method:

Микросхема NEC B58944 D43256BGU-70Y памяти используется для замены в блоке управления Bosch. ecufix.ru NEC B58944 D43256BGU-70Y BOSCH Auto ECU computer IC nec b58944 datasheet

The NEC B58944 is engineered to withstand the extreme environmental conditions of an engine bay, including high thermal cycles, voltage spikes, and mechanical vibration. Core Architecture and Specifications : NEC (Nippon Electric Company)

| Parameter | Specification | | :--- | :--- | | | 32,768 words × 8 bits | | Total Capacity | 262,144 bits (256 Kib) | | Access Time (Max) | 70 ns (for the -70L version) | | Supply Voltage (VCC) | 4.5 V to 5.5 V for standard operation | | Standby Current | 50 μA (max) for LL version, 3 μA (max) for L version | | Data Retention VCC | 2.0 V (min) | | Operating Ambient Temp | 0°C to 70°C (for the standard -70L version) | | Package | 28-pin Plastic SOP (450 mil / 11.43 mm wide) | When purchased as a replacement part, the chip

If you are looking for a specific replacement or need to verify a circuit design, I can help further if you tell me: The of your circuit The maximum current you expect the part to handle

However, this guide will help you in two ways: ecufix

Finding the original manufacturer datasheet can be tricky for automotive-grade ICs as they are often proprietary. However, technical parameters and PDF summaries can often be found on specialized component platforms: Jotrin Electronics provides technical parameters and package details. ALLDATASHEET

: Parallel SRAM, allowing for direct and fast data retrieval by the host microcontroller. Applications and Repair

You can find the B58944 through specialized electronic component distributors such as Jotrin Electronics , Worldway Electronics , or UTSOURCE . Share public link