Clock Divider Component - Programmable Frequency Division

Product Specifications

Technical details and manufacturing context for Clock Divider

Definition

A clock divider is a fundamental component within timing control logic systems that generates lower-frequency clock signals from a master clock source. It operates by counting input clock cycles and producing an output pulse after a predetermined number of cycles, enabling synchronization of various subsystems operating at different speeds within electronic devices. This component is typically fabricated on silicon and is available in a surface-mount SOIC-8 package, compliant with RoHS. It operates from a single 3.3 V supply (±10%) and accepts CMOS-compatible input logic levels (0–3.3 V). The input frequency range is 1–100 MHz, and the division ratio is programmable from 1 to 1024. The output duty cycle is 45–55% at a 50% input duty cycle, and output skew between multiple outputs is ±0.5 ns. The device provides ±24 mA output drive capability and consumes 10–50 mW at maximum frequency. It is rated for an industrial temperature range of -40 to 85 °C, with ESD protection of ±2000 V (human body model) per IEC 61000-4-2. The operating temperature range references IEC 60068-2-1 and IEC 60068-2-2 as verification standards. As a directory entry, these values are reference ranges; actual model-specific values and standards must be confirmed with the legal manufacturer or supplier.

Working Principle

The clock divider typically uses a counter circuit that increments with each rising or falling edge of the input clock signal. When the counter reaches a predefined value (the division ratio), it toggles the output signal and resets the counter. This creates an output signal with a frequency equal to the input frequency divided by the division ratio. The counter is programmable, allowing the division ratio to be set within the range of 1 to 1024. The output duty cycle is maintained within 45–55% when the input duty cycle is 50%. The circuit is designed for CMOS-compatible logic levels and operates from a 3.3 V supply. The output skew between multiple outputs is minimized to ±0.5 ns, ensuring synchronized timing across subsystems. The device is housed in an SOIC-8 package and is rated for industrial temperature ranges.

Common Materials

Silicon

Technical Parameters

Parameter	Typical range	Notes & selection driver
Input Frequency Range	1–100 MHz	Operating range for input clock signal
Division Ratio	1–1024	Integer division factor, programmable
Output Duty Cycle	45–55 %	At 50% input duty cycle
Output Skew	±0.5 ns	Between multiple outputs
Supply Voltage	3.3 ±10% V	Single supply, CMOS compatible
Operating Temperature Range	-40–85 °C	Industrial gradeIEC 60068-2-1, IEC 60068-2-2
Power Consumption	10–50 mW	At maximum frequency
Input Logic Level	0–3.3 V	CMOS compatible
Output Drive Capability	±24 mA	Sink/source current
Package Type	SOIC-8	Surface mount, RoHS compliant
ESD Protection	±2000 V	Human body modelIEC 61000-4-2

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

Components / BOM

Counter Register
Stores and increments the current count value with each clock cycle

Material: silicon
Comparator Circuit
Compares the counter value with the division ratio to determine when to toggle output

Material: silicon
Output Flip-Flop Part
Generates the divided clock output signal with proper timing

Material: silicon

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Timing Control Logic

View system integration details

Manufacturers of Clock Divider

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Frequently Asked Questions

What is the typical application of a clock divider?

Clock dividers are used in electronic devices to generate lower-frequency clock signals from a master clock, enabling synchronization of subsystems that operate at different speeds. They are common in digital systems, communication interfaces, and microprocessors.

How is the division ratio programmed?

The division ratio is programmable, typically via external pins or configuration registers, allowing a range from 1 to 1024. The specific programming method depends on the model; refer to the manufacturer's datasheet.

What is the output duty cycle specification?

At a 50% input duty cycle, the output duty cycle is specified as 45–55%. This ensures a balanced output signal for downstream logic.

What are the operating temperature limits?

The device is rated for an industrial temperature range of -40 to 85 °C, with reference to IEC 60068-2-1 and IEC 60068-2-2 for verification. Confirm the exact limits for your model.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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voltage:	1.8V to 5.5V typical operating range
frequency:	Up to 500 MHz maximum input frequency
temperature:	-40°C to +85°C (industrial grade), -55°C to +125°C (military grade)
power consumption:	Typically < 10 mW at 100 MHz operation

Clock Divider

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