CD74HC175M

Overview

The CD74HC175M is a high-speed CMOS logic quad D-type flip-flop manufactured by Texas Instruments. It features four independent D-type flip-flops with a master reset function, housed in a 16-pin SOIC package. The device operates within a supply voltage range of 2 V to 6 V and supports a maximum clock frequency of 20 MHz. Propagation delay is specified at 175 ns at 2 V and 33 ns at 4.5 V under a 50 pF load capacitance. Output currents are rated at ±5.2 mA for the HC series. The component functions across an extended industrial temperature range from -55 °C to +125 °C.

Feature Summary

• Integrates four independent D-type flip-flops with a common master reset input for synchronized initialization.
• Utilizes silicon gate CMOS technology to achieve high-speed operation while maintaining low power consumption.
• Provides both non-inverting (Q) and inverting (Q') outputs for each flip-flop stage.

Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations
• General-purpose digital storage applications

Procurement Notes

Verify that the specific part number matches the required logic family variant, as distinctions exist between HC and HCT series regarding input compatibility. Confirm the package type corresponds to the design requirements, ensuring the SOIC footprint aligns with the PCB layout. Check for any specific ordering suffixes that may indicate tape-and-reel packaging versus tube quantities if automated assembly is intended. Ensure compliance with RoHS standards and verify the moisture sensitivity level for proper handling during manufacturing.

Selection Notes

Select this component when a compact solution for quadruple D-type storage is required in surface-mount designs. The wide supply voltage range allows flexibility in systems operating between 2 V and 6 V. Consider the propagation delay specifications relative to the system clock speed to ensure timing margins are met. The extended temperature range makes it suitable for harsh industrial environments where standard commercial grade parts may fail.

Part Context

This device belongs to the Texas Instruments 74HC logic family, which is based on high-speed CMOS technology. It is functionally compatible with other 74HC series components, allowing for mixed logic designs. The CD74HC175M serves as a fundamental building block for sequential logic circuits, providing reliable data latching capabilities in digital systems requiring multiple storage elements in a single package.

Replacement Considerations

The SN74HC175N is a pin-compatible alternative available in a PDIP package. For TTL-compatible inputs, the CD74HCT175 series offers similar functionality with different input threshold characteristics. Verify that any substitute maintains the same output drive current and propagation delay specifications to ensure circuit performance integrity.