Click to expand full text
SN54HCT573, SN74HCT573
SCLS176G – JULY 2003 – REVISED JULY 2022
SNx4HCT573 Octal Transparent D-Type Latches With 3-State Outputs
1 Features
• Operating voltage range of 4.5V to 5.5V • High-Current 3-State Outputs Drive Bus Lines
Directly or Up To 15 LSTTL Loads • Low power consumption, 80-µA max ICC • Typical tpd = 21ns • ±6-mA output drive at 5V • Low input current of 1µA max • Inputs are TTL-Voltage compatible • Bus-structured pinout
2 Description
These octal transparent D-type latches feature 3-state outputs designed specifically for driving highly capacitive or relatively low-impedance loads. The ’HCT573 devices are particularly suitable for implementing buffer registers, I/O ports, bidirectional bus drivers, and working registers.