| PartNumber | 74F399SCX | 74F399SJ | 74F399SC |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers Quad 2-Port Register | Encoders, Decoders, Multiplexers & Demultiplexers Quad 2-Port Register | IC REGISTER QUAD 2-PORT 16-SOIC |
| Manufacturer | ON Semiconductor | ON Semiconductor | - |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| RoHS | Y | Y | - |
| Product | Multiplexers | Multiplexers | - |
| Logic Family | 74F | 74F | - |
| Number of Input Lines | 2 Input | 2 Input | - |
| Number of Output Lines | 1 Output | 1 Output | - |
| Propagation Delay Time | 9 ns at 5 V | 9 ns at 5 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SOIC-16 | SOP-16 | - |
| Packaging | Reel | Tube | - |
| Function | Quad 2-Port Register | Register | - |
| Height | 1.5 mm | 1.8 mm | - |
| Length | 10 mm | 10.2 mm | - |
| Number of Circuits | Quad | Quad | - |
| Technology | Bipolar | Bipolar | - |
| Width | 4 mm | 5.3 mm | - |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | - |
| Logic Type | 2-Port Register | 2-Port Register | - |
| High Level Output Current | - 1 mA | - 1 mA | - |
| Low Level Output Current | 20 mA | 20 mA | - |
| Maximum Clock Frequency | 120 MHz | 140 MHz | - |
| Operating Supply Voltage | 4.5 V to 5.5 V | 4.5 V to 5.5 V | - |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Encoders, Decoders, Multiplexers & Demultiplexers | - |
| Factory Pack Quantity | 2500 | 47 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.008536 oz | 0.008536 oz | - |