The MC74AC574/74ACT574 is a high-speed, low power octal flip-flop with abuffered common Clock (CP) and a buffered common Output Enable (OE). Theinformation presented to the D inputs is stored in the flip-flops on the LOW-to-HIGHClock (CP) transition. The MC74AC574/74ACT574 is functionally identical to the MC74AC374/ 74ACT374 except for the pinouts. 
Feature
 
 
 
  - Inputs and Outputs on Opposite Sides of PackageAllowing Easy Interface with Microprocessors
 
  - Useful as Input or Output Port for Microprocessors
 
  - Functionally Identical to MC74AC374/74ACT374
 
  - 3-State Outputs for Bus-Oriented Applications
 
  - Outputs Source/Sink 24 mA
 
  - ACT574 Has TTL Compatible Inputs
 
  - Pb-Free Packages are Available