54LS293 is a 4-bit binary counter produced by Texas Instruments. The product meets the specifications required by the Texas Instruments standard warranty terms.
The document covers the SN54290/SN74290 (Decade Counter) and SN54293/SN74293 (4-Bit Binary Counter), along with their Low-power Schottky variants. These monolithic integrated circuits contain four master-slave flip-flops designed for divide-by-two, divide-by-five, or divide-by-eight counting operations.
The datasheet details the logic symbols, pin configurations for various packages (D, J, N, W), and provides function tables for reset and count inputs. It also lists absolute maximum ratings, recommended operating conditions, electrical characteristics over temperature ranges, and switching characteristics at 5V.
The maximum count frequency is 4 MHz.