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This document is a technical datasheet for the National Semiconductor 5440/DM7440 Dual 4-Input NAND Buffer. The device contains two independent gates that perform the Logic NAND function with outputs capable of driving up to 48 mA.
The datasheet provides comprehensive specifications including absolute maximum ratings, recommended operating conditions, and electrical characteristics such as input/output voltages and currents. It also lists switching characteristics like propagation delay times under specific test conditions.
| Logic Function | NAND function |
|---|---|
| Output Current (High) | 48 mA |
| Propagation Delay Time (Low to High) | 22 ns |