onsemi (Ansemi)

TSSOP-20

Tube

75

The MC74VHCT573A is an advanced high-speed CMOS octal latch with 3-state outputs fabricated in a silicon-gate CMOS process. It achieves high operating speeds similar to equivalent bipolar Schottky TTLs while maintaining CMOS low power consumption. This 8-bit D-type latch is controlled by the Latch Enable and Output Enable inputs. When the output enable input is high, the eight outputs are in a high impedance state. The VHCT input is compatible with TTL levels. This device can be used as a level shifter for interfacing 3.3V and 5.0V as it has a full 5V CMOS level output swing. The VHCT573A input and output (when disabled) structures provide protection when voltages from 0 - 5.5V are applied regardless of the supply voltage. These input and output structures help prevent device damage due to supply voltage - input/output voltage mismatch, battery backup, hot insertion, etc.