Marking of electronic components, SMD Codes BU257, BU257**. SN74CB3Q3257RGYR, SN74CB3Q3257DBQR, SN74CB3Q3257DGVR, SN74CB3Q3257PWR, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| SN74CB3Q3257RGYR | BU257 | S-PVQFN-N16 | |
| SN74CB3Q3257DBQR | BU257 | QSOP-16 | |
| SN74CB3Q3257DGVR | BU257 | TVSOP-16 | |
| SN74CB3Q3257PWR | BU257 | TSSOP-16 |