Nec B58944 Datasheet -

The module communicates using standard HCI packets:

| Parameter | Min | Typical | Max | Unit | Condition | |-------------------------|-----|---------|-----|------|--------------------------| | Input Voltage (VIN) | 7 | 12 | 35 | V | – | | Output Voltage (VOUT) | 4.75| 5.0 | 5.25| V | IOUT ≤ 500mA | | Output Current | – | 500 | 1000| mA | With heatsink | | Dropout Voltage | – | 2.0 | 2.5 | V | IOUT = 500mA | | Line Regulation | – | 0.1 | 0.5 | % | VIN from 8V to 30V | | Load Regulation | – | 0.5 | 1.0 | % | IOUT from 10mA to 500mA | | Quiescent Current | – | 5 | 10 | mA | No load | | Ripple Rejection | 55 | 65 | – | dB | f = 120Hz | | Operating Temperature | -20 | 25 | 85 | °C | – | | Storage Temperature | -40 | – | 125 | °C | – |

In this post, we’ll break down why this specific chip is vital for vehicle performance and what you need to know from its datasheet. What is the NEC B58944? nec b58944 datasheet

Connected to the load; the metal tab is also internally connected to the drain for cooling.

have traded "verified" pinout diagrams and replacement tips like secret maps to buried treasure. The Specialty Market: The module communicates using standard HCI packets: |

If the B58944 is unavailable, alternatives with similar B-values and 10k resistance include: B57164K0103J000 Vishay: NTCLE100E3103JB0 Semitec: 103AT-2 6. Conclusion

At its core, the is a surface-mount, high-speed, 256K-bit CMOS static RAM (SRAM) device. It's specifically designed to operate within the demanding environment of a vehicle's electronic systems. The common full part number is D43256BGU-70Y , with "B58944" being a factory marking code printed on the chip's body. have traded "verified" pinout diagrams and replacement tips

If you have the physical component, provide clear photographs of all markings and the surrounding PCB to electronics forums (e.g., EEVblog, Badcaps) for crowd-sourced identification.