The SN74HC573A devices are octal transparent D-type latches that feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. They are particularly suitable for implementing buffer registers,I/O ports, bidirectional bus drivers, and working registers. While the latch-enable(LE) input is high, the Q outputs respond to the data(D) inputs. When LE is low, the outputs are latched to retain the data that was set up.

? Buffer Registers
? Bidirectional Bus Drivers
? Working Registers

? Wide Operating Voltage Range from 2 V to 6 V
? High-Current 3-State Outputs Drive Bus Lines
Directly up to 15 LSTTL Loads
? Low Power Consumption: 80-μA Maximum ICC
? Typical tpd = 21 ns
? ±6-mA Output Drive at 5 V
? Low Input Current: 1 μA (Maximum)
? Bus-Structured Pinout