Flip-Flop: Clock Frequency Up to 500 MHz, Hold Time 1-5 ns

Component Specifications

Definition

A flip-flop is a fundamental digital storage element in electronic circuits that maintains its state until triggered by a clock signal or input change. It operates as a bistable device with two stable states (0 and 1), serving as the basic building block for registers, counters, and memory units in configurable logic blocks and digital systems. Flip-flops are edge-triggered or level-sensitive devices that synchronize data transfer in sequential logic circuits.

Working Principle

Flip-flops operate on the principle of positive or negative edge triggering, where the output state changes only at specific transitions of the clock signal. Common types include SR, D, JK, and T flip-flops, each with distinct truth tables and triggering mechanisms. They utilize feedback loops and logic gates (typically NAND or NOR) to maintain state through latching action, with setup and hold times ensuring reliable operation during clock transitions.

Materials

Semiconductor materials (silicon, gallium arsenide), copper interconnects, silicon dioxide insulation, plastic or ceramic packaging (DIP, SOIC, QFP), gold bonding wires

Technical Parameters

Parameter	Typical range	Notes & selection driver
Hold Time	1-5 ns
Setup Time	2-10 ns
Output Drive	4-24 mA
Power Supply	1.2V, 1.8V, 2.5V, 3.3V, 5V
Clock Frequency	Up to 500 MHz
Propagation Delay	1-15 ns
Operating Temperature	-40°C to 85°C (industrial), -55°C to 125°C (military)

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

IEC 60747, JEDEC JESD78, MIL-STD-883

Parent Products

This component is used in the following industrial products

Configurable Logic Blocks

Basic programmable logic units within FPGAs and ASICs that implement digital logic functions.

View Product Details

Engineering Analysis

Risks & Mitigation

Metastability during asynchronous inputs
Clock skew causing timing violations
Power supply noise affecting state retention
Electrostatic discharge damage
Radiation-induced single-event upsets in harsh environments

FMEA Triads

Trigger: Clock signal jitter or skew exceeding timing margins
Failure: Incorrect data capture and propagation errors
Mitigation: Implement clock tree synthesis with balanced routing, use PLLs for jitter reduction, add timing margin in design

Trigger: Power supply voltage drop or noise spikes
Failure: State corruption or unintended toggling
Mitigation: Implement decoupling capacitors near power pins, use voltage regulators with low noise, design robust power distribution network

Trigger: Electrostatic discharge during handling or operation
Failure: Permanent damage to semiconductor junctions
Mitigation: Implement ESD protection diodes at I/O pins, follow proper handling procedures, use anti-static packaging and workstations

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% for timing parameters, ±10% for voltage levels under specified conditions

Test Method

Automated test equipment (ATE) with vector testing, boundary scan (JTAG 1149.1), functional testing at temperature extremes, HBM/CDM ESD testing per JESD22-A114/A115

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

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Inspection readiness

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Supplier transparency

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Manufacturers of Flip-Flop

Manufacturer profiles associated with Flip-Flop.

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Frequently Asked Questions

What is the difference between a latch and a flip-flop?

Latches are level-sensitive and transparent when enabled, while flip-flops are edge-triggered and change state only at clock transitions, providing better synchronization in sequential circuits.

Why are setup and hold times important for flip-flops?

Setup time ensures data is stable before clock edge, hold time ensures data remains stable after clock edge. Violating these times causes metastability and data corruption.

What are the main applications of flip-flops in industrial systems?

Flip-flops are used in counters, shift registers, frequency dividers, state machines, data synchronization, debouncing circuits, and memory address registers in PLCs, FPGAs, and digital controllers.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Flip-Flop