| PartNumber | FST3125MTC | FST3125M | FST3125MTCX |
| Description | Digital Bus Switch ICs 4-Bit Bus Switch | Digital Bus Switch ICs 4-Bit Bus Switch | IC SWITCH BUS 4BIT TTL 14TSSOP |
| Manufacturer | ON Semiconductor | ON Semiconductor | Fairchild Semiconductor |
| Product Category | Digital Bus Switch ICs | Digital Bus Switch ICs | Logic - Signal Switches, Multiplexers, Decoders |
| RoHS | Y | Y | - |
| Number of Bits | 4 bit | 4 bit | 4 bit |
| On Resistance Max | 7 Ohms | 7 Ohms | - |
| Propagation Delay Max | 250 ps | 250 ps | - |
| Operating Supply Voltage | 5 V | 5 V | 5 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 | TSSOP-14 Wide | SOIC-14 Narrow | - |
| Packaging | Tube | Tube | Digi-ReelR Alternate Packaging |
| Height | 0.9 mm | 1.5 mm | - |
| Length | 5 mm | 8.75 mm | - |
| Organization | 1 x 1:1 | 1 x 1:1 | - |
| Width | 4.4 mm | 4 mm | - |
| Brand | ON Semiconductor / Fairchild | ON Semiconductor / Fairchild | - |
| Logic Type | CMOS | CMOS | - |
| Off Time Max | 5.3 ns | 5.3 ns | - |
| On Time Max | 5 ns | 5 ns | - |
| Supply Current Max | 3 uA | 3 uA | - |
| Product Type | Digital Bus Switch ICs | Digital Bus Switch ICs | - |
| Factory Pack Quantity | 94 | 55 | - |
| Subcategory | Switch ICs | Switch ICs | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4 V | 4 V | - |
| Part # Aliases | FST3125MTC_NL | - | FST3125MTCX_NL |
| Unit Weight | 0.001951 oz | 0.005291 oz | 0.001951 oz |
| Series | - | FST3125 | - |
| Type | - | - | FET Bus Switch |
| Package Case | - | - | TSSOP-14 Wide |
| Operating Temperature | - | - | -40°C ~ 85°C |
| Mounting Type | - | - | Surface Mount |
| Voltage Supply | - | - | 4 V ~ 5.5 V |
| Supplier Device Package | - | - | 14-TSSOP |
| Voltage Supply Source | - | - | Single Supply |
| Circuit | - | - | 1 x 1:1 |
| Current Output High Low | - | - | - |
| Independent Circuits | - | - | 4 |
| Supply Current Max | - | - | 3 uA |
| Supply Voltage Max | - | - | 5.5 V |
| Supply Voltage Min | - | - | 4 V |
| Propagation Delay Max | - | - | 250 ps |
| On Resistance Max | - | - | 7 Ohms |
| Off Time Max | - | - | 5.3 ns |
| On Time Max | - | - | 5 ns |