RDS(on)cap R sub cap D cap S open paren o n close paren end-sub
The single most common use-case for sourcing the NEC B58944 is the refurbishment of .
Since I cannot browse the live internet to retrieve a specific copyrighted PDF document, I have compiled the technical specifications for the based on its standard identity as a Bluetooth SiP (System in Package) Module . nec b58944 datasheet
| Issue | Probable Cause | Solution | | :--- | :--- | :--- | | | Baud rate mismatch | Try standard rates (9600, 115200, 921600). | | Unstable connection | Power supply noise | Add larger capacitors near VCC; check ground plane. | | Short range | Antenna mismatch | Ensure antenna is connected; keep metal away from the antenna area. | | Cannot pair | Wrong PIN/Stack issue | Default PIN is usually "0000" or "1234". Ensure stack is initialized correctly. |
| Brand | Models & Systems | | :--- | :--- | | | X-Trail 14g diesel (ECU contains MZP665 BGA and NEC B58944) | | Iveco | Daily 35c15 (ECU Bosch 0281012193) | | Volkswagen Group (incl. Audi) | B58944 used as a driver chip for the body computer | | Nova | S10 (possibly for EDC16) | RDS(on)cap R sub cap D cap S open
Connected to the circuit ground or negative rail. Thermal Characteristics
: It is designed for applications requiring high reliability and low power consumption, typical of industrial and automotive embedded systems. | | Unstable connection | Power supply noise
According to industry databases and technical listings, the B58944 is equivalent to the . Type : CMOS Static RAM (SRAM). Capacity : 256 Kilobits (32K x 8 bits). Package : SOP-28 (Small Outline Package with 28 pins).
If you are troubleshooting a specific module,g., 0261xxxxxx) or the you are getting. I can help you confirm if this chip is the likely culprit. Share public link