Output Flip-Flop: Output Drive Current 4-24 mA

Component Specifications

Definition

An output flip-flop is a sequential logic circuit element with two stable states (0 and 1) that can store one bit of binary information. In clock divider applications, it functions as a memory element that changes state only at specific clock signal transitions (typically rising or falling edges), enabling frequency division by toggling at half the input clock frequency. It maintains its output state until the next triggering clock edge, providing synchronized output signals.

Working Principle

The output flip-flop operates on edge-triggered or level-triggered clocking principles. When used in clock dividers, it typically functions as a T-type (toggle) flip-flop where each clock pulse causes the output to toggle between high and low states. This creates a square wave output with exactly half the frequency of the input clock signal. The output remains stable between clock transitions due to internal feedback loops that maintain the stored state.

Materials

Semiconductor materials (silicon, gallium arsenide), copper interconnects, aluminum or copper bonding wires, ceramic or plastic packaging materials, gold plating for contacts.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Hold Time	0.2-2 ns
Setup Time	0.5-5 ns
Package Type	SOIC, TSSOP, QFN, BGA
Power Supply	1.2V, 1.8V, 2.5V, 3.3V, 5V
Clock Frequency	Up to 500 MHz
Propagation Delay	1-15 ns
Output Drive Current	4-24 mA
Operating Temperature	-40°C to +85°C or -55°C to +125°C

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

Parent Products

This component is used in the following industrial products

Clock Divider

A digital circuit component that reduces the frequency of an input clock signal by a specific integer factor.

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Engineering Analysis

Risks & Mitigation

Metastability during asynchronous inputs
Clock skew affecting synchronization
Power supply noise causing false triggering
Electrostatic discharge damage
Thermal runaway at high frequencies

FMEA Triads

Trigger: Violation of setup/hold time requirements
Failure: Metastable output causing system instability
Mitigation: Implement proper clock domain crossing techniques, add synchronizer chains, ensure adequate timing margins

Trigger: Power supply voltage fluctuations
Failure: False triggering or output glitches
Mitigation: Use decoupling capacitors near power pins, implement voltage regulators with low noise, add power supply monitoring circuits

Trigger: Excessive clock signal jitter
Failure: Inconsistent frequency division output
Mitigation: Use low-jitter clock sources, implement clock conditioning circuits, maintain proper clock signal integrity

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

±5% for timing parameters, ±10% for voltage levels, ±2% for frequency division ratio

Test Method

Automated test equipment (ATE) with vector testing, boundary scan testing (JTAG), functional testing at temperature extremes, signal integrity analysis using oscilloscopes and logic analyzers

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

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Output Flip-Flop

Manufacturer profiles associated with Output Flip-Flop.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

What is the main function of an output flip-flop in a clock divider?

The primary function is to divide the input clock frequency by two, creating a synchronized output signal with exactly half the frequency of the input clock while maintaining stable output between clock transitions.

How does an output flip-flop differ from a regular flip-flop?

An output flip-flop is specifically designed with enhanced output drive capability, better noise immunity, and optimized timing characteristics for driving subsequent circuit stages, whereas regular flip-flops may have standard output characteristics.

What are the common failure modes of output flip-flops?

Common failures include metastability issues during setup/hold violations, output stuck at high or low states, excessive propagation delay, clock signal sensitivity problems, and thermal-induced timing degradation.

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.

Output Flip-Flop