| Manufacturer | Part Number | Description |
|---|---|---|
| Solid State Scientific Solid State Scientific | SCL4049UB | (SCL4049UB / SCL4050UB) CMOS HEX Buffer / Converters |
| Solid State Scientific Solid State Scientific | SCL4050UB | (SCL4049UB / SCL4050UB) CMOS HEX Buffer / Converters |