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| Part Number | SN74LS399NSRE4 | 
| Description | IC QUAD 2-IN MUX W/STOR 16SO | 
| Manufacturer | Texas Instruments | 
| Series | 74LS | 
| Part Status | Obsolete | 
| Type | Multiplexer | 
| Circuit | 4 x 2:1 | 
| Independent Circuits | 1 | 
| Current - Output High, Low | 400µA, 8mA | 
| Voltage Supply Source | Single Supply | 
| Voltage - Supply | 4.75V ~ 5.25V | 
| Operating Temperature | 0°C ~ 70°C | 
| Mounting Type | Surface Mount | 
| Package / Case | 16-SOIC (0.209", 5.30mm Width) | 
| Supplier Device Package | 16-SO |