| PartNumber | TC74VHC244F(EL,K,F | TC74VHC238FK(EL,K) | TC74VHC221AFK(EL,K |
| Description | Buffers & Line Drivers CMOS Logic IC 3.9ns 8mA 2.0 to 5.5V | Encoders, Decoders, Multiplexers & Demultiplexers 3-TO-8 LINE DECODER VCC: 2-5. | Monostable Multivibrator MONOSTABLE MULTIVIBRATOR VCC: |
| Manufacturer | Toshiba | Toshiba | Toshiba |
| Product Category | Buffers & Line Drivers | Encoders, Decoders, Multiplexers & Demultiplexers | Monostable Multivibrator |
| RoHS | Y | Y | Y |
| Number of Input Lines | 8 Input | 3 Input | - |
| Number of Output Lines | 8 Output | 8 Output | - |
| Polarity | Non-Inverting | - | - |
| Supply Voltage Max | 5.5 V | 5.5 V | 5.5 V |
| Supply Voltage Min | 2 V | 2 V | 2 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 | SOP-20 | VSSOP-16 | SOP-16 |
| Packaging | Reel | Reel | Reel |
| Function | Buffer and Line Driver | - | - |
| Height | 1.5 mm | - | - |
| Length | 13.3 mm (Max) | - | - |
| Output Type | 3-State | - | - |
| Quiescent Current | 4 uA | - | - |
| Series | TC74VHC244 | TC74VHC238FK | TC74VHC221AFK |
| Technology | CMOS | - | - |
| Width | 5.3 mm | - | - |
| Brand | Toshiba | Toshiba | Toshiba |
| Logic Family | VHC | 74VHC | 74VHC |
| Number of Channels | 8 | - | - |
| Supply Current Max | 4 uA | - | 50 mA |
| High Level Output Current | - 8 mA | - | - 8 mA |
| Input Signal Type | Single-Ended | - | - |
| Low Level Output Current | 8 mA | - | 8 mA |
| Operating Supply Current | 4 uA | - | - |
| Operating Supply Voltage | 2.5 V, 3.3 V, 5 V | - | 2 V to 5.5 V |
| Product Type | Buffers & Line Drivers | Encoders, Decoders, Multiplexers & Demultiplexers | Monostable Multivibrator |
| Propagation Delay Time | 11.9 ns at 3.3 V, 7.5 ns at 5 V | 5.5 ns | 8.1 ns |
| Factory Pack Quantity | 2000 | 2500 | 2500 |
| Subcategory | Logic ICs | Logic ICs | Logic ICs |
| Unit Weight | 0.009408 oz | - | - |
| Product | - | Decoders | - |
| Number of Circuits | - | 1 Circuit | - |
| Logic Type | - | CMOS | Monostable Multivibrator |
| Pd Power Dissipation | - | 180 mW | 180 mW |
| Elements per Chip | - | - | 2 |