| PartNumber | FSA641UMX | FSA644BUCX | FSA642UMX |
| Description | Encoders, Decoders, Multiplexers & Demultiplexers SD/SDIO and MMC 6DPT 2 Port Multiplexer | Analog Switch ICs MIPI D-PHY SWITCH | Analog Switch ICs Power 3 Port HiSpeed Differential |
| Manufacturer | ON Semiconductor | ON Semiconductor | ON Semiconductor |
| Product Category | Encoders, Decoders, Multiplexers & Demultiplexers | Analog Switch ICs | Analog Switch ICs |
| RoHS | Y | Y | Y |
| Product | Multiplexers | - | - |
| Number of Input Lines | 2 Input | - | - |
| Number of Output Lines | 1 Output | - | - |
| Supply Voltage Min | 2.65 V | - | 2.65 V |
| Supply Voltage Max | 4.3 V | - | 4.3 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | MLP-20 | WLCSP-36 | UMLP-24 |
| Packaging | Reel | Reel | Reel |
| Series | FSA641 | FSA644 | FSA642 |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild |
| Product Type | Encoders, Decoders, Multiplexers & Demultiplexers | Analog Switch ICs | Analog Switch ICs |
| Factory Pack Quantity | 5000 | 3000 | 5000 |
| Subcategory | Logic ICs | Switch ICs | Switch ICs |
| Unit Weight | 0.004303 oz | 2.151712 oz | 0.001467 oz |
| Number of Switches | - | 10 Switch | 2 Switch |
| Configuration | - | 10 x SPDT | 2 x 3PDT |
| On Resistance Max | - | 12 Ohms | 9.5 Ohms |
| On Time Max | - | 50 ns | 37 ns |
| Off Time Max | - | 50 ns | 27 ns |
| Operating Supply Voltage | - | 1.65 V to 4.5 V | 2.65 V to 4.3 V |
| Switch Voltage Max | - | - | 2.65 V |
| Height | - | - | 0.5 mm |
| Length | - | - | 3.4 mm |
| Supply Type | - | - | Single Supply |
| Width | - | - | 2.5 mm |
| Supply Current Max | - | - | 1 uA |