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| PartNumber | SN74ALS21AN | SN74ALS21ANE4 | SN74ALS21ANG4 |
| Description | Logic Gates Dual 4-Input Positive-AND Gates | Logic Gates Dual 4-Input Positive-AND Gates | |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | Logic Gates | Logic - Gates and Inverters | - |
| RoHS | Y | - | - |
| Product | Single-Function Gate | - | - |
| Logic Function | AND | - | - |
| Logic Family | ALS | - | - |
| Number of Gates | 2 Gate | - | - |
| Number of Input Lines | 4 Input | - | - |
| Number of Output Lines | 1 Output | - | - |
| High Level Output Current | - 2 mA | - | - |
| Low Level Output Current | 20 mA | - | - |
| Propagation Delay Time | 15 ns | - | - |
| Supply Voltage Max | 5.5 V | - | - |
| Supply Voltage Min | 4.5 V | - | - |
| Minimum Operating Temperature | 0 C | - | - |
| Maximum Operating Temperature | + 70 C | - | - |
| Mounting Style | SMD/SMT | - | - |
| Package / Case | PDIP-14 | - | - |
| Packaging | Tube | Tube Alternate Packaging | - |
| Function | AND | - | - |
| Height | 4.57 mm | - | - |
| Input Type | TTL | - | - |
| Length | 19.3 mm | - | - |
| Operating Temperature Range | 0 C to + 70 C | - | - |
| Output Type | TTL | - | - |
| Series | SN74ALS21A | 74ALS | - |
| Width | 6.35 mm | - | - |
| Brand | Texas Instruments | - | - |
| Logic Type | 4-Input AND | AND Gate | - |
| Number of Bits | 2 bit | - | - |
| Operating Supply Current | 1.4 uA | - | - |
| Operating Supply Voltage | 5 V | - | - |
| Product Type | Logic Gates | - | - |
| Factory Pack Quantity | 25 | - | - |
| Subcategory | Logic ICs | - | - |
| Unit Weight | 0.032734 oz | - | - |
| Package Case | - | 14-DIP (0.300", 7.62mm) | - |
| Operating Temperature | - | 0°C ~ 70°C | - |
| Mounting Type | - | Through Hole | - |
| Features | - | - | - |
| Voltage Supply | - | 4.5 V ~ 5.5 V | - |
| Supplier Device Package | - | 14-PDIP | - |
| Number of Circuits | - | 2 | - |
| Number of Inputs | - | 4 | - |
| Current Quiescent Max | - | - | - |
| Current Output High Low | - | 400μA, 8mA | - |
| Max Propagation Delay V Max CL | - | 15ns @ 5V, 50pF | - |
| Logic Level Low | - | 0.8V | - |
| Logic Level High | - | 2V | - |