Built-in bias resistors enable the configuration of an inverter circuit without connecting external input resistors.
The bias resistors consist of thin-film resistors with complete isolation to allow negative biasing of the input. They also have the advantage of almost completely Eliminating parasitic effects.
Only the on/off conditions need to be set for operation marking device design easy.
Datasheets by Manufacturer
DTC144ECA — SeCoS Halbleitertechnologie GmbH — NPN Digital Transistors