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| PartNumber | SN74AS21NS | SN74AS21N | SN74AS21N-J |
| Description | Logic Gates GP51-04001-99,99/04/07 (M-PCC) | Logic Gates Dual 4-Input Positive-AND Gates | |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Logic Gates | Logic Gates | - |
| RoHS | Y | Y | - |
| Product | Single-Function Gate | Single-Function Gate | - |
| Logic Function | AND | AND | - |
| Logic Family | AS | AS | - |
| Number of Gates | 2 Gate | 2 Gate | - |
| Number of Input Lines | 8 Input | 4 Input | - |
| Number of Output Lines | 2 Output | 1 Output | - |
| High Level Output Current | - 2 mA | - 2 mA | - |
| Low Level Output Current | 20 mA | 20 mA | - |
| Propagation Delay Time | 6 ns | 15 ns | - |
| Supply Voltage Max | 5.5 V | 5.5 V | - |
| Supply Voltage Min | 4.5 V | 4.5 V | - |
| Minimum Operating Temperature | 0 C | 0 C | - |
| Maximum Operating Temperature | + 70 C | + 70 C | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | SO-14 | PDIP-14 | - |
| Packaging | Tube | Tube | - |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Product Type | Logic Gates | Logic Gates | - |
| Factory Pack Quantity | 50 | 25 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Function | - | AND | - |
| Height | - | 4.57 mm | - |
| Input Type | - | TTL | - |
| Length | - | 19.3 mm | - |
| Output Type | - | TTL | - |
| Series | - | SN74AS21 | - |
| Width | - | 6.35 mm | - |
| Logic Type | - | 4-Input AND | - |
| Number of Bits | - | 2 bit | - |
| Operating Supply Current | - | 1.4 uA | - |
| Operating Supply Voltage | - | 5 V | - |
| Unit Weight | - | 0.032734 oz | - |