BUY SN74LS192 https://www.utsource.net/itm/p/1156150.html
SYNCHRONOUS 4-BIT UP/DOWN COUNTERS DUAL CLOCK WITH CLEAR
Description: 4-Bit Binary Counter
Features:
Synchronous Counting
Asynchronous Reset
Ripple Clock Inputs
Outputs Can Be Used As Inputs To Other Counters
Outputs Source/Sink 24 mA
Fanout of 2 Standard Loads
Input Clamp Diodes Limit High Speed Termination Effects
Inputs Are TTL-Voltage Compatible
Outputs Are Open-Collector
Operating Temperature Range: -55°C to 125°C
Package: DIP-16
Application:
The SN74LS192 is a 4-bit binary counter that can be used in a variety of applications such as frequency division, event counting, and time delay generation. It is commonly used in digital circuits for counting and timing applications.
(For reference only)