Nec B58944 Datasheet Official

Supplied as an empty hardware chip (requires no independent firmware programming; operations are driven completely by the master ECU MCU) Understanding the SOP-28 Pin Configuration

Monitoring battery pack temperatures to prevent over-heating during charging or discharging.

Technical Specifications and Application Overview for the B58944 Transistor Component Type: High-Voltage, High-Speed Switching Power Transistor Manufacturer: NEC (now Renesas Electronics)

The chip is fabricated using NEC's advanced silicon-gate CMOS technology, contributing to its high speed and low power draw. nec b58944 datasheet

The B58944 is a high-speed, low-power CMOS static RAM organized as 32,768 words by 8 bits (32K x 8). Memory Size: 256 Kbits (32 KB). Package Type: (28-pin Small Outline Package). Access Time:

By providing this detailed information, designers and engineers can quickly reference the key specifications and characteristics of the NEC B58944, making it easier to design and develop high-performance analog circuits.

NEC part numbers generally follow structured formats. does not match common NEC logic families (e.g., µPD for microcontrollers, 2SC/2SA for transistors, or Dxxxx for diodes). It resembles: Supplied as an empty hardware chip (requires no

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

Move your hot air nozzle in a continuous circle over the chip package. Use tweezers to gently lift the chip once the solder fully liquefies. Do not force the lift, or you may tear the PCB pads.

For the standard TO-220/TO-263 package, the pinout is as follows: Controls the biasing of the transistor. Memory Size: 256 Kbits (32 KB)

Within these circuits, the B58944 acts as an intermediary component—either serving as a dedicated high-reliability buffer memory or driving localized output logic. Because it handles continuous read/write routines and coordinates localized processing data, it is a frequent point of electrical failure when an ECU undergoes an external short circuit or thermal overload. Common Failure Modes & Diagnostics

Q: What is the maximum drain-source voltage of the NEC B58944? A: The maximum drain-source voltage (VDS) of the NEC B58944 is 100V.

| Parameter | Symbol | Rating | Unit | | :--- | :---: | :---: | :---: | | Collector-Base Voltage | $V_CBO$ | 1500 | V | | Collector-Emitter Voltage | $V_CEO$ | 800 | V | | Emitter-Base Voltage | $V_EBO$ | 6 | V | | Peak Collector Current | $I_CM$ | 15 | A | | Continuous Collector Current | $I_C$ | 8 | A | | Base Current | $I_B$ | 5 | A | | Power Dissipation ($T_c=25^\circ C$) | $P_C$ | 100 | W | | Junction Temperature | $T_j$ | +150 | $^\circ C$ | | Storage Temperature | $T_stg$ | -55 to +150 | $^\circ C$ |