Has anybody used TI's SN54LV132A NAND Gate in their design or have the reference schematic ?
B are the inputs,
Y is is the gate's output. These are very common designators, and are also illustrated on page 2 of the datasheet. Pin designators on the pinout on the first page starts with the gate number, followed by the input or output designator. So
1Y are pins of the same gate.