DM74S373N

The DM74S373N from ON Semiconductor is an octal D-type transparent latch designed for bus-driving applications. It features 3-STATE outputs capable of driving highly capacitive or low-impedance loads, making it suitable for bus-organized systems without external interface components.

This latch integrates eight transparent D-type latches. While the enable signal (G) is HIGH, the Q outputs follow the D inputs. When the enable signal transitions LOW, the output latches the data present at the D inputs. The device operates with a supply voltage range of 4.75V to 5.25V and has an operating temperature range of 0°C to 70°C.

Key electrical characteristics include a propagation delay of 12ns and current consumption of 6.5mA and 20mA. The outputs are Tri-State, and the circuit configuration is 8:8 with one independent circuit. The DM74S373N is packaged in a 20-PDIP through-hole component.

Schmitt-trigger buffered inputs enhance noise rejection. The output control input allows the eight outputs to be placed in a normal logic state or a high-impedance state without affecting internal latch operation. This makes the DM74S373N ideal for buffer registers, I/O ports, and bidirectional bus drivers.