Pin 4 is known as NC (no connection) pin which doesn’t have any role in the internal circuit of the IC. Pin 3 is the second reset pin used to reset the counter. Pin 2 is a reset pin used to reset the counter in case of any requirement. The IC consist of multiple mod counters, The Pin 1 is used to give the pulse to mod eight counter. The 74L93 binary counter comes up with internal protection from high-speed termination. It comes in multiple packages such as DIP, SMD with all 14-pins. This is compatible with any microcontroller or TTL based devices. The whole IC gives the output 4 bits which counts from 0 to 15 in binary. The IC is made up of two counters one is mod 2 counter another one is mod 8 counter. The 74LS93 IC comes up with two reset pins, two clock pins, and four output pins. We can use the microcontroller or timer IC for pulse input. It consists of 4 JK flip flops which act on the input pulse no matter how we gave the input pulse. Here we will discuss 74LS93 which is a four-bit counter. Both these types of counters use the flip flops to count the binary digits. Counters come up in two form Asynchronous and Synchronous counters. The output of the counters can be used in multiple devices as pulse counting or for generating interrupts, etc. Counters have a major role in every electronics device. 74LS93 or SN74LS93 is a 4-bit binary counter.
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