7474PC

Flip Flops Overview

The Fairchild Semiconductor 7474PC is a dual D-type flip-flop integrated circuit belonging to the standard 7400 logic series. It features two independent positive-edge-triggered circuits, each with set and reset inputs, housed in a 14-pin Dual In-line Package (DIP). The device operates within a supply voltage range of 4.75V to 5.25V. Key electrical specifications include a maximum propagation delay of 40ns at 5V with 15pF load, output currents of 400µA high and 16mA low, and a static current of 30mA. It supports through-hole mounting and functions within an operating temperature range of 0°C to 70°C.

Flip Flops Feature Summary

• Dual positive-edge-triggered D-type flip-flops with dedicated set and reset control inputs
• Standard TTL-compatible logic family operation with defined high and low output drive capabilities
• Robust through-hole packaging suitable for general-purpose digital circuit applications

Flip Flops Applications

• General-purpose data storage and register circuits
• Sequential logic timing and state machine implementations
• Pulse generation and synchronization circuits

Flip Flops Procurement Notes

This component is officially listed as discontinued by the manufacturer. Procurement must rely on secondary market distributors or surplus inventory providers. Verify part authenticity and physical condition carefully, as availability varies significantly across suppliers. Ensure that any sourced units match the original Fairchild manufacturing specifications before integration into designs.

Flip Flops Selection Notes

Select this component only when standard 7400 series compatibility is required and through-hole DIP packaging is mandatory. Consider modern alternatives if lower power consumption or surface-mount form factors are preferred. Evaluate the specific 30mA static current requirement against system power budgets, as this exceeds contemporary CMOS standards.

Flip Flops Part Context

The 7474PC belongs to the foundational 7400 logic family, historically dominant in digital electronics design. As a legacy product from Fairchild Semiconductor, it represents the transition era of discrete logic components. Its discontinuation reflects industry migration toward higher-density, lower-power technologies, though it remains relevant for maintaining vintage systems or specific industrial retrofits.

Flip Flops Replacement Considerations

Public confirmed substitute part numbers: DM7474N.