MC14553 3 Digit BCD Counter DIP16 IC - 10 Pack
Now available from PMD Way is the classic MC14553 3 digit BCD counter IC. They're used to count pulses and give an output in BCD form (Binary Coded Decimal).
You can then run the BCD through a 4511 IC to drive three seven-segment numeric LED displays.
Sold in packs of ten, in DIP through-hole packaging.
Download datasheet (.pdf)
Interesting counter circuit (see page 122)