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| Part Number | 74H20PC | 74H40PC | 74H30PC | 74H21PC | 74F20PC | 74H00PC | 74H10PC |
|---|---|---|---|---|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | Fairchild Semiconductor | National Semiconductor | National Semiconductor |
| Product Status | Active | Active | Active | Active | Obsolete | Active | Active |
| Logic Type | NAND Gate | NAND Gate | - | - | NAND Gate | - | - |
| Number of Circuits | 2 | 2 | - | - | 2 | - | - |
| Number of Inputs | 4 | 4 | - | - | 4 | - | - |
| Features | - | - | - | - | - | - | - |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V | - | - | 4.5V ~ 5.5V | - | - |
| Current - Quiescent (Max) | 20 mA | 40 mA | - | - | - | - | - |
| Current - Output High, Low | - | - | - | - | 1mA, 20mA | - | - |
| Logic Level - Low | - | - | - | - | 0.8V | - | - |
| Logic Level - High | - | - | - | - | 2V | - | - |
| Max Propagation Delay @ V, Max CL | 20ns @ 5V, 50pF | 12ns @ 5V, 50pF | - | - | 5ns @ 5V, 50pF | - | - |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | - | - | 0°C ~ 70°C | - | - |
| Mounting Type | Through Hole | Through Hole | - | - | Through Hole | - | - |
| Supplier Device Package | 14-PDIP | 14-PDIP | - | - | 14-DIP | - | - |
| Package / Case | 14-DIP (0.300", 7.62mm) | 14-DIP (0.300", 7.62mm) | - | - | 14-DIP (0.300", 7.62mm) | - | - |
