| 54HC21/YBDGAQ | F4597 | FREESCALE SEMICONDUCTEURS FRANCE SAS |
| 54HC21JBR | F0114 | UNION TECHNIQUE ELECTRICITE |
| C86-222/H55 | F0114 | UNION TECHNIQUE ELECTRICITE |
| 54HC21YBDGBQ | F4597 | FREESCALE SEMICONDUCTEURS FRANCE SAS |
| 99140057 | F6481 | THALES SA |
| CECC90109-658 | I9003 | CENELEC ELECTRONIC COMPONENTS COMITTEE (CECC) |
| MLM54HC21YBDG | F0114 | UNION TECHNIQUE ELECTRICITE |
| SN54HC21JBR | F2210 | TEXAS INSTRUMENTS FRANCE |
| SN54HC21JYB | F2210 | TEXAS INSTRUMENTS FRANCE |
| M54HC21DX | F8859 | STMICROELECTRONICS SA |
| M54HC21FYB | F8859 | STMICROELECTRONICS SA |
| CECC90109-658-54HC21YBDG | I9003 | CENELEC ELECTRONIC COMPONENTS COMITTEE (CECC) |