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Marking of electronic components, SMD Codes HB74, HB74**. SN74AHCT74DBR, SN74AHCT74DGVR, SN74AHCT74PW, SN74AHCT74RGYR, SN74AHCT74QPWRG4Q1, ic marking code.
| PartNumber | Marking code | Manufacturer | Package |
|---|---|---|---|
| SN74AHCT74DBR | HB74 | SSOP-14 | |
| SN74AHCT74DGVR | HB74 | TVSOP-14 | |
| SN74AHCT74PW | HB74 | TSSOP-14 | |
| SN74AHCT74RGYR | HB74 | S-PVQFN-N14 | |
| SN74AHCT74QPWRG4Q1 | HB74Q | TSSOP-14 | |
| SN74AHCT74QPWRQ1 | HB74Q | TSSOP-14 |