DM74LS175N

Overview

The DM74LS175N is a quad D-type flip-flop utilizing Low-Power Schottky TTL circuitry. It features four positive-edge-triggered flip-flops with complementary outputs and a common direct clear input. The device operates within a supply voltage range of 4.75V to 5.25V, supporting a typical clock frequency of 40 MHz. Propagation delay is typically 25 ns at 5V with 50pF load. It is housed in a 16-pin PDIP package and functions within an operating temperature range of 0°C to 70°C.

Feature Summary

• Positive-edge-triggered operation for reliable data capture
• Complementary Q and Q-bar outputs per flip-flop
• Common direct clear input for synchronous reset
• Buffered clock and data inputs

Applications

• Buffer and storage registers
• Shift registers
• Pattern generators

Procurement Notes

Verify the manufacturer designation on the component marking, as 'DM' prefixes are historically associated with National Semiconductor or Fairchild. Confirm that the specific unit received matches the DM74LS175N specification rather than other variants like SN74LS175N. Ensure the package type corresponds to the standard 16-pin DIP format required for the target application.

Selection Notes

Select this component when a quad D-type flip-flop with complementary outputs is required in a Low-Power Schottky logic environment. It is suitable for designs needing a shared clear function across all four channels. Consider alternative packages if surface-mount technology is preferred over through-hole installation.

Part Context

This part belongs to the 74LS series of digital logic integrated circuits. It provides four independent D-type flip-flops within a single package. The device is designed for general-purpose digital storage and timing applications, offering a balance of speed and power consumption characteristic of the LS family.

Replacement Considerations

• SN74LS175N (Texas Instruments)
• CD74LS175E (Texas Instruments)

FAQ

Does the DM74LS175N have individual clear inputs for each flip-flop?

No, the DM74LS175N features a single common direct clear input that resets all four flip-flops simultaneously.

What is the trigger edge for data transfer in this device?

Data is transferred from the D inputs to the Q outputs on the positive-going edge of the clock pulse.