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Octal D-Type Latch with 3-State Output
MC74VHC573, MC74VHCT573A
The MC74VHC573/MC74VHCT573A is an advanced high speed CMOS octal latch with 3−state output fabricated with silicon gate CMOS technology. It achieves high speed operation similar to equivalent Bipolar Schottky TTL while maintaining CMOS low power dissipation.
The 8−bit D−type latch is controlled by a latch enable input and an output enable input. When the output enable input is high, the eight outputs are in a high impedance state.
The MC74VHC573 inputs are compatible with standard CMOS levels while the MC74VHCT573A inputs are compatible with TTL levels. The MC74VHCT573A device can be used as a level converter for interfacing 3.3 V to 5.0 V, because it has full 5.0 V CMOS level output swings.