SDLS153A January 1981 – January 2016 SN74LS292 , SN74LS294
PRODUCTION DATA.
When using multiple bit logic devices, inputs should not ever float. In many cases, functions or parts of functions of digital logic devices are unused (for example, when only two inputs of a triple-input AND gate are used or only 3 of the 4 buffer gates are used). Such input pins should not be left unconnected because the undefined voltages at the outside connections result in undefined operational states.
The following are the rules that must be observed under all circumstances: