Texas Instruments standard-logic products data sheets include descriptions of functionality and electrical specifications for the devices. Each specification includes acronyms, numerical limits, and test conditions that may be foreign to the user. The proper understanding and interpretation of the direct, and sometimes implied, meanings of these specifications is essential to correct product selection and associated circuit design. This application report explains each data sheet parameter in detail, how it affects the device, and, more important, how it impacts the application. This will enable component and system-design engineers to derive the maximum benefit from TI logic devices.