Time: after Tims…

摘要

In the various figures, no output logic buffers have been shown for Vo for simplicity. Isolating Vo by buffering is always a sound procedure and I recommend it. This insures that small variations in Vo due to variable external loads do not affect the tank charge or discharge times. Finally, remember to observe all precautions to avoid electrostatic damage when storing and installing the part. CMOS static damage is often latent, showing up only weeks after the damaging shock has occurred. However, once the timer is soldered safely into the circuit, it is difficult for it to experience electrostatic damage because of distributed circuit capacity. I suggest that you keep several timers such as the TLC555 on hand. You never know when you might need a tailored square wave or pulse in your design -and your microprocessor will thank you for the outside help!