| Manufacturer | Part Number | Description |
|---|---|---|
National Semiconductor (now Texas Instruments)
| 74F399 | Quad 2-Port Register |
Philips Semiconductors (now NXP Semiconductors)
| 74F399 | Registers |
Motorola Semiconductor (now NXP Semiconductors)
| MC74F399 | QUAD 2-PORT REGISTER FAST SCHOTTKY TTL |
