BUY 74LS190 https://www.utsource.net/itm/p/98267.html
Synchronous Up/Down Decade Counterssingle clock line
Description: The 74LS190 is a 4-bit synchronous up/down counter with a single output. It is a 16-pin dual in-line package (DIP) integrated circuit (IC) made by Texas Instruments (TI). Features: * Synchronous operation * Counts up or down * 4-bit binary output * Ripple carry output * Asynchronous master reset Applications: * Frequency division * Digital clocks * Counters * Timers * Automation systems
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