UNISONIC TECHNOLOGIES CO.
, LTD U74LVC563 OCTAL TRANSPARENT D-TYPE LATCHES WITH 3-STATE OUTPUTS „ DESCRIPTION CMOS IC The U74LVC563 is a octal transparent D-TYPE latches with 3-state outputs.
When the latch-enable (LE) is high, the Q outputs follow the complements of the D inputs.
When LE is low, the Q outputs are latched at the inverses of the levels set up at the D inputs.
When the output-enable ( OE ) input is high, the Q outputs are in a high-impedance state, and the outputs neither load nor drive the bus lines.
The high-impedance state and increased drive provide the capability to drive bus lines without interface or pull-up components.
While the outputs are in the high-impedance state...

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