| Mfr Part # | Mfr | Series | Package | Product Status | Accessory Type |
|---|---|---|---|---|---|
| 74LS280FP-E | Renesas Electronics America Inc | * | Bulk | Active | - |
| SN74S280N3 | Texas Instruments | - | Bulk | Active | - |
| SN74S280D | Texas Instruments | - | Bulk | Active | - |
| QS74FCT2521ATQ | Quality Semiconductor | 74FCT | Bulk | Obsolete | - |
| SN74LS280D | Texas Instruments | 74LS | Tube | Active | - |
| 74F182LC | National Semiconductor | * | Bulk | Active | - |
| QS74FCT1280ATSO | Quality Semiconductor | * | Bulk | Active | - |
| QS74FCT2521BTSO | Quality Semiconductor | 74FCT | Bulk | Obsolete | - |
| QS74FCT521CTZ | Quality Semiconductor | 74FCT | Bulk | Obsolete | - |
| QS74FCT2521CTP | Quality Semiconductor | 74FCT | Bulk | Obsolete | - |