Nec B58944 Datasheet |top| ❲Browser❳
Common in EDC7 and EDC16 units for heavy vehicles like Iveco.
Q: What are the typical applications of the NEC B58944? A: The NEC B58944 is commonly used in power supplies, motor control, and lighting systems.
To verify the integrity of the B58944 on a faulty circuit board:
: Standard TTL and CMOS input/output thresholds. Power Dissipation : Ultra-low low-power standby mode ( nec b58944 datasheet
In the world of electronic components, finding accurate and detailed documentation is crucial for engineers, hobbyists, and procurement specialists. One part number that frequently surfaces in legacy systems, repair forums, and surplus component inventories is the . While NEC (now part of Renesas Electronics) produced millions of semiconductors, some part numbers remain shrouded in partial documentation. This article serves as a comprehensive resource for the NEC B58944 datasheet , covering its likely specifications, typical applications, pinout configuration, electrical characteristics, and sourcing alternatives.
: Random loss of vehicle map configurations or immoblizer data syncing. Bench Testing Protocol
Based on the collected data, the B58944 is most likely a , manufactured by NEC (now Renesas). This likely means its internal functionality is that of a standard 32K x 8-bit (256 Kbit) CMOS static RAM with an access time of 70 nanoseconds. However, this is our strongest hypothesis and not a confirmed fact. Common in EDC7 and EDC16 units for heavy vehicles like Iveco
Understanding the NEC B58944 Automotive IC: The Comprehensive Component Guide
Because it is an OEM-specific part primarily manufactured for proprietary automotive modules, finding a standardized public datasheet can be notoriously difficult for independent technicians and engineers. This guide synthesizes the known technical specifications, package parameters, structural applications, and troubleshooting protocols associated with the NEC B58944. Technical Overview and Identification
When repairing a damaged Bosch module, technicians source the NEC B58944 as an empty chip . Because it is standard SRAM, . To verify the integrity of the B58944 on
If you are looking for a from another brand (like Infineon or ST) Share public link
Based on its identical counterpart, the , the B58944 features the following technical characteristics: Feature Specification Memory Type CMOS Static RAM (SRAM) Capacity 256K-bit (32,768 words x 8 bits) Access Time 70 ns (indicated by the "-70" suffix) Package Type 28-pin Plastic SOP (Small Outline Package) Voltage Range 2.7 V to 5.5 V (B version) Data Retention Low VCC data retention down to 2.0 V Key Features for Automotive Use
The is a specialized Integrated Circuit (IC) primarily used in automotive Engine Control Units (ECUs) , specifically for BOSCH engine computer systems. It is often identified alongside the part number D43256BGU-70Y , which designates it as a specific type of high-speed CMOS static RAM chip frequently adapted for automotive driver applications. Technical Summary
| Parameter | Symbol | Typical NEC Value | Meaning | | :--- | :--- | :--- | :--- | | Supply Voltage | VCC | e.g., 7V | Max voltage before damage | | Power Dissipation | PD | e.g., 500mW | Use heatsink if exceeded | | Junction Temp | Tj | 150°C | Max internal temp |
