SN54LS31, SN74LS31 DELAY ELEMENTS are a product produced by Texas Instruments
The document describes the SN54LS31 and SN74LS31 delay elements, which are designed to provide well-defined delays across temperature and supply voltage ranges. These components include inverting and non-inverting gates as well as buffer NAND elements rated for specific output sink currents.
Key specifications cover absolute maximum ratings, recommended operating conditions, electrical characteristics over the full operating range, and switching characteristics including propagation delay times (tPLH and tPHL) for various input-to-output transitions.
| Low-Level Output Current (Gates 1, 2, 5, 6) | 4 and 8 mA |
|---|---|
| Low-Level Output Current (Buffers 3, 4) | 12 and 24 mA |
The SN54LS31 is characterized for operation over the full military temperature range of -55°C to 125°C.
For Gates 1 and 6, the typical propagation delay (tPLH) is 23ns and tPHL is 27.6ns.