DM74190N, SN74191N, SN74LS192N, DM74193N Integrated Circuits IC DIP-16 IC
DM74190N synchronous presettable up/down 4-bit decade counter
SN74191N synchronous presettable up/down 4-bit binary counter
SN74LS192N synchronous presettable up/down 4-bit decade counter, clear
DM74193N synchronous presettable up/down 4-bit binary counter, clear