7492 Divide By 12 Counter 4-Bit Binary Counter SN54/74LS92
The 7492 / 74LS92 counter IC is a 4-Bit ripple counter (4 cascaded counting elements). The individual counting circuits inside are partitioned into two blocks, one is a divide by two counter and the other capable of divide by 6, which when combined together effectively implements a divide by 12, perfect for the hour tracking register for a digital clock.
For the decade counter version refer to 74LS90.
For the hexadecimal counter (divide by 16 / 4-bit counter) refer to 74LS93.
The counter contains gated master clear circuitry.
• Count Frequency — Typically 42 MHz