8051 pic microcontroller is a 8 bit family of microcontroller used all across the world. This microcontroller has limited space as it has 128 bytes of RAM, 4Kbytes of a ROM, 2 Timers, 1 Serial port, and 4 ports on a single chip. Thus it's also referred as “system on a chip”. Use our online 8051-time delay calculator to determine the time delay of an 8051 pic micro controller (UC) device. Enter the Microcontroller Clock Frequency and Desired Timer Run-Time (DRT) to find the time delay.