| Part Number | SN74LS28DR | SN74LS21DR |
|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments |
| Category | Logic - Gates and Inverters | Logic - Gates and Inverters |
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| Product Status | Active | Active |
| Logic Type | - | AND Gate |
| Number of Circuits | - | 2 |
| Number of Inputs | - | 4 |
| Features | - | - |
| Voltage - Supply | - | 4.75V ~ 5.25V |
| Current - Quiescent (Max) | - | - |
| Current - Output High, Low | - | 400µA, 8mA |
| Logic Level - Low | - | 0.8V |
| Logic Level - High | - | 2V |
| Max Propagation Delay @ V, Max CL | - | 20ns @ 5V, 15pF |
| Operating Temperature | - | 0°C ~ 70°C |
| Mounting Type | - | Surface Mount |
| Supplier Device Package | - | 14-SOIC |
| Package / Case | - | 14-SOIC (0.154", 3.90mm Width) |