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| Part Number | DM74LS251M | DM74LS253M | DM74LS251MX | DM74LS251N | DM74ALS251M |
|---|---|---|---|---|---|
| Manufacturer | Fairchild Semiconductor | Fairchild Semiconductor | Fairchild Semiconductor | onsemi | Fairchild Semiconductor |
| Product Status | Active | Active | Active | Obsolete | Obsolete |
| Type | Data Selector/Multiplexer | Data Selector/Multiplexer | Data Selector/Multiplexer | Multiplexer | Multiplexer |
| Circuit | 1 x 8:1 | 2 x 4:1 | 1 x 8:1 | 1 x 8:1 | 1 x 8:1 |
| Independent Circuits | 1 | 2 | 1 | 1 | 1 |
| Current - Output High, Low | 2.6mA, 24mA | 2.6mA, 24mA | 2.6mA, 24mA | 2.6mA, 24mA | 2.6mA, 24mA |
| Voltage Supply Source | Single Supply | Single Supply | Single Supply | Single Supply | Single Supply |
| Voltage - Supply | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.75V ~ 5.25V | 4.5V ~ 5.5V |
| Operating Temperature | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C | 0°C ~ 70°C |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Through Hole | Surface Mount |
| Package / Case | 16-SOIC (0.209", 5.30mm Width) | 16-SOIC (0.209", 5.30mm Width) | 16-SOIC (0.154", 3.90mm Width) | 16-DIP (0.300", 7.62mm) | 16-SOIC (0.154", 3.90mm Width) |
| Supplier Device Package | 16-SOEIAJ | 16-SOEIAJ | 16-SOIC | 16-PDIP | 16-SOIC |
