SN74LS74ANS

Flip Flops Overview

The SN74LS74ANS is a dual D-type flip-flop integrated circuit from the Texas Instruments SN74LS74A series. It features two independent positive-edge-triggered D-type flip-flops with dedicated preset and clear inputs. The device operates within a supply voltage range of 4.75 V to 5.25 V, with a typical propagation delay of 40 ns at 5 V. It provides complementary outputs (Q and Q-bar) for each flip-flop. The component is housed in a 14-pin PDIP package and supports through-hole mounting. It functions as a TTL logic device with low-power Schottky characteristics.

Flip Flops Feature Summary

• Contains two independent D-type flip-flops triggered on the positive edge of the clock signal
• Features active-low asynchronous preset and clear inputs for immediate output control
• Provides both non-inverting (Q) and inverting (Q-bar) outputs for flexible logic interfacing

Flip Flops Applications

• Data storage and register applications requiring parallel data capture
• Frequency division circuits utilizing toggle configurations
• Shift register construction for serial-to-parallel data conversion

Flip Flops Procurement Notes

Verify the specific suffix 'ANS' against the manufacturer's current datasheet to confirm package type and pinout compatibility. Ensure that the ordering information matches the required through-hole PDIP configuration. Cross-reference RoHS compliance status and lead times directly with authorized distributors or the manufacturer's official channels prior to procurement.

Flip Flops Selection Notes

Select this component when designing circuits requiring dual independent storage elements with asynchronous control capabilities. It is suitable for systems operating at standard TTL voltage levels. Consider the 40 ns propagation delay for timing constraints. Verify that the through-hole packaging aligns with the PCB design requirements compared to surface-mount alternatives like the ADR variant.

Flip Flops Part Context

This part belongs to the widely used 74LS family of logic integrated circuits, known for low-power Schottky performance. The SN74LS74A designation indicates an improved version of the original 74LS74, often featuring enhanced switching speeds or reliability. It serves as a fundamental building block in digital electronics for sequential logic operations.

Flip Flops Replacement Considerations

Compatible substitutes include the SN74LS74AD (SOIC package) and generic equivalents such as the 74HC74, provided voltage levels and speed requirements are met. Verify pinout compatibility before substitution.