IOLS Static Low-Level Output Current
JEDEC – no definition offered
TI – The static and testable current into a Dynamic Output Control (DOC circuitry) output with input conditions applied that, according to the product specifications, establishes a static low level at the output. The dynamic drive current is not specified for devices with DOC circuitry outputs because of its transient nature; however, it is similar to the dynamic drive current that is available from a high-drive (nondamping resistor) standard-output device.
TI data sheets specify currents flowing out of a device as a negative value. DOC circuitry is designed to drive CMOS input devices, which are capacitive in nature, in point-to-point applications (one receiver input per driver output). For this reason, a large static low-level output current is not required. What matters most in this case is the high-transient-drive capability of the output.
For additional information about DOC circuitry, refer to the TI application report, Dynamic OutputControl (DOC) Circuitry Technology and Applications, literature number SCEA009.
This tutorial is based on the Understanding and Interpreting Standard Logic Data Sheets application report (SZZA036). To download the full PDF version of this application report, please use the following URL: http://www-s.ti.com/sc/techlit/szza036.pdf