The MC74AC573/74ACT573 is a high-speed octal latch with buffered commonLatch Enable (LE) and buffered common Output Enable (OE)bar inputs. The MC74AC573/74ACT573 is functionally identical to the MC74AC373/ 74ACT373 but has inputs and outputs on opposite sides. 
Feature
 
 
 
  - Inputs and Outputs on Opposite Sides of Package Allowing Easy Interface with Microprocessors
 
  - Useful as Input or Output Port for Microprocessors
 
  - Functionally Identical to MC74AC373/74ACT373
 
  - 3-State Outputs for Bus Interfacing
 
  - Outputs Source/Sink 24 mA
 
  - ACT573 Has TTL Compatible Inputs