DM54LS260/DM74LS260 is a dual 5 input NOR gate circuit produced by the American National Semiconductor Corporation.
The DM54LS260/DM74LS260 device contains two independent five‑input NOR gates that perform the logic NOR function. It is offered in several dual‑in‑line and surface‑mount packages and is intended for general‑purpose digital logic applications.
Key specifications include a 5 V typical supply voltage, VIH of 2 V, VIL of 0.7 V, propagation delays of 10 ns (low‑to‑high) and 12 ns (high‑to‑low), and output currents up to 0.4 mA. Physical dimensions and lead configurations are detailed for each package type, and the device is not authorized for use in life‑support systems without written approval.
| Maximum Supply Voltage | 7 V |
|---|---|
| High Level Input Voltage (VIH) | 2 V |
| Low Level Input Voltage (VIL) | 0.7 V |
| High Level Output Voltage (VOH) | 2.5 V |
| Low Level Output Voltage (VOL) | 0.4 V |
| Propagation Delay Low‑to‑High (tPLH) | 10 ns |
| Propagation Delay High‑to‑Low (tPHL) | 12 ns |
| Supply Current with Outputs High | 4.0 mA |
| Supply Current with Outputs Low | 5.5 mA |
The absolute maximum supply voltage is 7 V.
A high logic level is recognized at an input voltage of 2 V.
No, National Semiconductor products are not authorized for use as critical components in life‑support devices without written approval.