74LS503 Overview
The DM74LS503 register has an active LOW Enable (E) input that is used in cascading two or more packages for longer word lengths. A HIGH signal on E, after a START operation, forces Q7 HIGH and prevents the device from accepting serial data. With the E input of an DM74LS503 connected to the CC output of a preceding (more significant) device, the DM74LS503 will be inhibited until the preceding device is filled,...
74LS503 Key Features
- Performs serial-to-parallel conversion
- Expansion control for longer words
- Storage and control for successive approximation A to D
- Low power Schottky version of 2503
