Texas Instruments 74HC393 Two 4-Bit Counter IC (74393 IC) DIP-14 Package

74HC series ICs are High-speed logic gates with very low power consumption that utilize advanced silicon-gate CMOS technology and 74HC393 is one of them. 74HC393 ICs contain two 4-bit counter by implementing 8 flip flops in a single package. Each 4-bit counter has an independent clock pin and a clear input pin. It can implement an n-bit counter with the capability of divide-by-256.The 74HC393 ICs have a wide operating range of VCC from 2 V to 6 V. Maximum current consumption is 80 uA through Icc and 1 uA per input pin. And the propagation delay is 13 ns. They can drive 10 LS-TTL loads at a time. Which means that the output pin of the counter can drive 10 TTL based Low-Power Schottky( LS ) input pins. They can provide 4 mA on outputs at 5 V VCC. They allow inputs and outputs up to VCC. Recommended operating VCC is 5 V. Load Current can reach up to 25 mA per output pin and 50 mA for overall pins in between 0 V to VCC.