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| PartNumber | SN74LS21N | SN74LS21N3 | SN74LS21ND |
| Description | Logic Gates Dual 4-Input | ||
| Manufacturer | Texas Instruments | - | - |
| Product Category | Logic Gates | - | - |
| RoHS | Y | - | - |
| Product | Single-Function Gate | - | - |
| Logic Function | AND | - | - |
| Logic Family | LS | - | - |
| Number of Gates | 2 Gate | - | - |
| Number of Input Lines | 4 Input | - | - |
| Number of Output Lines | 1 Output | - | - |
| High Level Output Current | - 0.4 mA | - | - |
| Low Level Output Current | 8 mA | - | - |
| Propagation Delay Time | 15 ns | - | - |
| Supply Voltage Max | 5.25 V | - | - |
| Supply Voltage Min | 4.75 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Mounting Style | Through Hole | - | - |
| Package / Case | PDIP-14 | - | - |
| Packaging | Tube | - | - |
| Function | Dual 4-Input | - | - |
| Height | 4.57 mm | - | - |
| Input Type | TTL | - | - |
| Length | 19.3 mm | - | - |
| Operating Temperature Range | 0 C to + 70 C | - | - |
| Output Type | TTL | - | - |
| Series | SN74LS21 | - | - |
| Width | 6.35 mm | - | - |
| Brand | Texas Instruments | - | - |
| Logic Type | 4-Input AND | - | - |
| Number of Bits | 2 bit | - | - |
| Operating Supply Current | 2.5 uA | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Product Type | Logic Gates | - | - |
| Factory Pack Quantity | 25 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.032734 oz | - | - |