SN74AC74DR

Flip Flops Overview

The SN74AC74DR is a dual D-type flip-flop integrated circuit manufactured by Texas Instruments, belonging to the AC logic family. It features Schmitt-trigger inputs for noise filtering and supports a supply voltage range of 2V to 6V. The device provides complementary outputs with high drive capability, delivering up to 24mA at both high and low logic levels. Packaged in a 14-pin SOIC surface-mount format, it operates within a temperature range of -40°C to 85°C. Key electrical specifications include a maximum propagation delay of 10ns at 5V with 50pF load and a static current consumption of 2µA.

Flip Flops Feature Summary

• Dual D-type flip-flops with positive-edge triggering
• Schmitt-trigger inputs for enhanced noise immunity
• High-output drive capability of 24mA
• Complementary outputs available

Flip Flops Applications

• Parallel-to-serial data conversion circuits
• Shift register implementations
• General-purpose memory storage elements
• Timing and synchronization applications

Flip Flops Procurement Notes

Verify the specific ordering suffix 'DR' corresponds to the SOIC-14 package and tape-and-reel packaging configuration as documented in the manufacturer's official datasheet. Confirm that the component meets RoHS3 compliance standards required for your assembly process. Ensure the selected variant matches the specified operating temperature range and voltage requirements for your target application environment.

Flip Flops Selection Notes

Select this component when dual independent D-type flip-flops with Schmitt-trigger inputs are required for signal conditioning. The AC logic family offers higher speed and drive strength compared to standard HC series devices while maintaining compatible pinouts. Consider the 2V to 6V supply range flexibility for systems requiring operation across varying voltage levels or mixed-voltage interfaces.

Flip Flops Part Context

This part belongs to the SN74ACxx series of advanced CMOS logic devices from Texas Instruments. The AC series is designed to provide faster switching speeds and higher output drive capabilities than previous generations while retaining backward compatibility with standard TTL and CMOS logic families. The SN74AC74 specifically implements two independent D-type flip-flops within a single 14-pin package.

Flip Flops Replacement Considerations

SN74AC74N

Flip Flops FAQ

What is the function of the Schmitt-trigger inputs on the SN74AC74?

The Schmitt-trigger inputs provide hysteresis, which helps filter out noise and ensures clean signal transitions even with slow input rise or fall times.

Does the SN74AC74 have asynchronous set and reset functions?

Yes, the device includes preset (set) and clear (reset) inputs that operate asynchronously to force the output to a defined state regardless of the clock signal.