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| PartNumber | SN74ALS21ADR | SN74ALS21ADRE4 | SN74ALS21ADRG4 |
| Description | Logic Gates Dual 4-Input | Logic Gates Dual 4-Input Positive-AND Gates | Logic Gates Dual 4 Input Pos NAND 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 | ALS | ALS | - |
| Number of Gates | 2 Gate | 2 Gate | - |
| Number of Input Lines | 4 Input | 4 Input | - |
| Number of Output Lines | 1 Output | 1 Output | - |
| High Level Output Current | - 2 mA | - 2 mA | - |
| Low Level Output Current | 20 mA | 20 mA | - |
| Propagation Delay Time | 15 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 | SOIC-14 | SOIC-14 | - |
| Packaging | Reel | Reel | - |
| Function | These devices contain two independent 4-input positive-AND gates | AND | - |
| Height | 1.58 mm | 1.58 mm | - |
| Input Type | TTL | TTL | - |
| Length | 8.65 mm | 8.65 mm | - |
| Operating Temperature Range | 0 C to + 70 C | 0 C to + 70 C | - |
| Output Type | TTL | TTL | - |
| Series | SN74ALS21A | SN74ALS21A | - |
| Width | 3.91 mm | 3.91 mm | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Logic Type | 4-Input AND | 4-Input AND | - |
| Number of Bits | 2 bit | 2 bit | - |
| Operating Supply Current | 1.4 uA | 1.4 uA | - |
| Operating Supply Voltage | 5 V | 5 V | - |
| Product Type | Logic Gates | Logic Gates | - |
| Factory Pack Quantity | 2500 | 2500 | - |
| Subcategory | Logic ICs | Logic ICs | - |
| Unit Weight | 0.004564 oz | 0.004564 oz | - |