SCLS009B - MARCH 1984 - REVISED MAY 1997
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These 8-bit latches feature 3-state outputs designed specificallyfor driving highly capacitive or relatively low-impedance loads. Theyare particularly suitable for implementing buffer registers, I/Oports, bidirectional bus drivers, and working registers.
The eight latches of the 'HCT373 are transparent D-type latches.While the latch-enable (LE) input is high, the Q outputs follow thedata (D) inputs. When LE is taken low, the Q outputs are latched atthe levels that were set up at the D inputs.
An output-enable (
) input placesthe eight outputs in either a normal logic state (high or low logiclevels) or the high-impedance state. In the high-impedance state, theoutputs neither load nor drive the bus lines significantly. Thehigh-impedance state and increased drive provide the capability todrive bus lines without interface or pullup components.
does not affect the internaloperations of the latches. Old data can be retained or new data canbe entered while the outputs are off.
The SN54HCT373 is characterized for operation over the fullmilitary temperature range of -55°C to 125°C. TheSN74HCT373 is characterized for operation from -40°C to85°C.
View more information about generic part numbers:SN54HCT373, SN74HCT373
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