The 74HC373D is an octal transparent D Latch with 3-state outputs.
It features LE and OE inputs. When LE is high, data at the
inputs enter the latches. In this condition the latches are
transparent, a latch output will change each time its corresponding
D-input changes. When LE is low the latches store the information
that was present at the inputs a set-up time preceding the
high-to-low transition of LE. A high on OE causes the outputs to
assume a high-impedance OFF-state. Operation of the OE input does
not affect the state of the latches. Inputs include clamp diodes.
This enables the use of current limiting resistors to
interface inputs to voltages in excess of VCC.
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