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| Part Number | 54LS259FMQB | 54LS279FMQB | 54LS259LMQB | 54LS259DMQB | 
|---|---|---|---|---|
| Manufacturer | National Semiconductor | National Semiconductor | National Semiconductor | National Semiconductor | 
| Product Status | Active | Active | Active | Active | 
| Logic Type | - | - | - | - | 
| Circuit | - | - | - | - | 
| Output Type | - | - | - | - | 
| Voltage - Supply | - | - | - | - | 
| Independent Circuits | - | - | - | - | 
| Delay Time - Propagation | - | - | - | - | 
| Current - Output High, Low | - | - | - | - | 
| Operating Temperature | - | - | - | - | 
| Mounting Type | - | - | - | - | 
| Package / Case | - | - | - | - | 
| Supplier Device Package | - | - | - | - |