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MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Octal 3-State Inverting Transparent Latch
High–Performance Silicon–Gate CMOS
The MC54/74HC563A is identical in pinout to the LS563. The device inputs are compatible with standard CMOS outputs; with pullup resistors, they are compatible with LSTTL outputs. This device is identical in function to the HC533A but has the Data Inputs on the opposite side of the package from the outputs to facilitate PC board layout. These latches appear transparent to data (i.e., the outputs change asynchronously) when Latch Enable is high. The data appears at the outputs in inverted form. When Latch Enable goes low, data meeting the setup and hold time becomes latched.
MC74HC563A Datasheet
