74AC175PC

Overview

The onsemi 74AC175PC is a quad D flip-flop belonging to the AC logic series, housed in a 16-pin PDIP package. It operates within a supply voltage range of 2 V to 6 V and supports an operating temperature range from -40 °C to +85 °C. The device features complementary outputs with source/sink currents of 24 mA. Key electrical parameters include a propagation delay of 13 ns and a maximum clock frequency of 244 MHz. It includes a master reset function for simultaneous clearing of all flip-flops.

Feature Summary

• Integrates four independent D-type flip-flops with common clock and master reset inputs for synchronized data storage.
• Provides high-drive complementary outputs capable of sourcing and sinking 24 mA directly.
• Ensures reliable operation across industrial temperature ranges with robust CMOS construction.

Applications

• General-purpose digital data storage and register applications
• Shift register configurations for serial-to-parallel conversion
• Timing control circuits requiring precise edge-triggered state changes

Procurement Notes

Verify component authenticity through authorized distributors or certified secondary market suppliers. Confirm RoHS compliance status and manufacturing origin details prior to acquisition. Check for obsolescence notices as this specific part number may be discontinued by the manufacturer. Ensure packaging integrity matches required handling standards for plastic dual in-line packages.

Selection Notes

Select this component when a parallel-input, parallel-output memory element is required with strong drive capability. The AC series offers higher speed than HC variants while maintaining low power consumption. Consider the PDIP package only for through-hole prototyping or legacy board designs. Verify that the 2 V to 6 V supply range aligns with system power rails.

Part Context

This device belongs to the MC74AC/ACT175 family of high-speed quad D flip-flops. It shares functional compatibility with other 74AC175 variants but differs in package type. The AC series represents a performance tier between standard TTL and advanced CMOS technologies, offering improved switching speeds without significant power penalty.

Replacement Considerations

• CD74AC175M96 (Texas Instruments)
• MC74HC175ADG (onsemi, note: HC series has lower drive current)

FAQ

Does the 74AC175PC have TTL-compatible inputs?

No, the 74AC175PC does not have TTL-compatible inputs. Only the ACT variant (74ACT175) provides TTL-compatible input levels.

What is the function of the Master Reset pin?

The Master Reset pin simultaneously clears all four flip-flops when held low, forcing all outputs to a known state regardless of clock or data inputs.