You can customize each circuit and perform electrical simulation (with optional Monte Carlo or corner-case analysis) as you zoom in on the optimum configuration for your application. When finished, the design can be exported to your favorite CAD tool.
Adding Logic to Circuits
Frequently, you will want to add logic to your circuits to monitor error signals, trigger an alarm, enable or disable a device, convert a momentary switch to a toggle switch, debounce a switch, control an indicator LED, or provide voltage translation. To help you implement such functions, TI offers the Logic Minute video series, which gets you up to speed in just a minute or two.
Figure 6 shows one example, where two NOR gates configured as a set-reset (S-R) flip-flop are able to detect a transient anomaly and illuminate an LED. A two-pole switch (lower left) connected to the latch’s S input simulates the anomaly in this example. When the switch transitions from ground to VCC, flip-flop output Q goes high and the LED turns on. When the anomaly clears (i.e., the two-pole switch again grounds the S input), the LED continues in the on state until the flip-flop is reset using the pushbutton in the upper left, which connects the flip-flop R input to VCC.