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HomeProductsIntegrated Circuits (ICs)Logic - Counters, DividersHCF4018BEY
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HCF4018BEY - STMicroelectronics

Manufacturer Part Number
HCF4018BEY
Manufacturer
STMicroelectronics
Allelco Part Number
32D-HCF4018BEY
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
5,280 pcs available, New & Original
Parts Description
IC DIVIDER BY N 5-BIT 16DIP
Package
16-DIP
Data sheet
HCF4018BEY.pdf

Datasheets

HCF4018B.pdf
RoHs Status
ROHS3 Compliant
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In stock: 5280

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Specifications

HCF4018BEY Tech Specifications
STMicroelectronics - HCF4018BEY technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - HCF4018BEY

Product Attribute Attribute Value
Manufacturer STMicroelectronics
Voltage - Supply 3 V ~ 20 V
Trigger Type Positive Edge
Timing -
Supplier Device Package 16-DIP
Series 4000B
Reset Asynchronous
Package / Case 16-DIP (0.300", 7.62mm)
Package Tube
Product Attribute Attribute Value
Operating Temperature -55°C ~ 125°C
Number of Elements 1
Number of Bits per Element 5
Mounting Type Through Hole
Logic Type Divide-by-N
Direction Up
Count Rate 17 MHz
Base Product Number HCF4018

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

HCF4018BEY Image
HCF4018BEY (1)

Manufacturer Part Number

HCF4018BEY

Manufacturer

stmicroelectronics

Introduction

The HCF4018BEY is a divide-by-N counter from the 4000B series of CMOS logic devices. It is a versatile counter that can be used in a wide range of applications, including frequency division, digital clocks, and event counting.

Product Features and Performance

Divide-by-N counter with a 5-bit binary counter

Counts up in the positive edge of the clock input

Asynchronous reset

Maximum count rate of 17 MHz

Wide supply voltage range from 3V to 20V

Operating temperature range of -55°C to 125°C

Through-hole 16-DIP package

Product Advantages

Versatile counter with a wide range of applications

High-speed operation up to 17 MHz

Wide supply voltage range for flexible design

Excellent temperature range for use in harsh environments

Key Reasons to Choose This Product

Reliable and robust CMOS logic design

High-performance counter functionality

Flexible supply voltage and temperature range

Cost-effective solution for frequency division and counting applications

Quality and Safety Features

Manufactured by the reputable semiconductor company stmicroelectronics

Designed and tested to meet industry standards for quality and reliability

RoHS-compliant for environmental safety

Compatibility

The HCF4018BEY is compatible with other 4000B series CMOS logic devices and can be used in a wide range of digital circuit designs.

Application Areas

Frequency division

Digital clock generation

Event counting

Industrial automation and control systems

Instrumentation and measurement equipment

Product Lifecycle

The HCF4018BEY is an obsolete product, meaning it is no longer in active production. However, there are equivalent or alternative models available from stmicroelectronics and other manufacturers. Customers are advised to contact our website's sales team for more information on available options and product lifecycle details.

Frequently Asked Questions(FAQ)

How does the HCF4018BEY compare to the CD4018BE in terms of supply voltage tolerance and maximum count rate when used in a frequency division application requiring stable operation across industrial temperature ranges?
The HCF4018BEY maintains identical core functionality to the CD4018BE, including a 5-bit synchronous divide-by-N architecture with asynchronous reset, but offers improved noise immunity and lower power consumption due to STMicroelectronics' enhanced CMOS process. Both devices support the full 3 V to 20 V supply range, but the HCF4018BEY typically demonstrates tighter propagation delay characteristics under high-frequency operation, allowing it to achieve the specified count rate of up to 17 MHz more reliably than earlier CD4018BE implementations, especially near the upper end of the temperature spectrum (-55°C to +125°C).
What are the practical implications of using the HCF4018BEY in a phase-locked loop (PLL) circuit where precise divide ratios and low jitter are critical, particularly when operating at the edge of its specified frequency limit?
In PLL applications, the HCF4018BEY’s positive-edge triggering and asynchronous reset allow flexible synchronization, but achieving stable performance near the 17 MHz limit requires careful layout to minimize parasitic capacitance and inductance on clock traces. Its wide supply range (3–20 V) enables compatibility with various reference clocks, but marginal timing margins at high frequencies may increase cycle-to-cycle jitter. Designers should ensure clean power delivery and consider derating the input clock frequency by 10–15% to maintain reliable divide ratio accuracy over temperature.
When substituting the HCF4018BEY for an existing CD4018BE in a legacy design, what layout and signal integrity considerations must be addressed to preserve timing consistency and avoid functional failure?
Although pin-compatible in 16-DIP packages, the HCF4018BEY has slightly different input capacitance and drive strength characteristics due to manufacturing process refinements. This can affect rise/fall times on high-speed signals, potentially introducing skew in multi-stage divider chains. To maintain equivalent behavior, decoupling capacitors should be placed closer to the VDD pin, and clock traces kept short with controlled impedance if operating above 10 MHz. Additionally, verify that the original design’s fan-out does not exceed the HCF4018BEY’s fan-in capability under worst-case load conditions.
How does the asynchronous reset feature of the HCF4018BEY impact initialization sequences in microcontroller-driven systems compared to synchronous counters, and what precautions are necessary during power-up transients?
The HCF4018BEY’s asynchronous reset allows immediate state clearing regardless of the clock signal, which simplifies system initialization but risks unintended resets if the reset line floats or glitches during power ramp-up. Unlike synchronous counters, there is no guarantee that all flip-flops will respond simultaneously, so external RC networks or supervisor ICs are recommended to hold RESET low until VDD reaches a stable threshold (typically >2.5 V). This prevents partial state corruption and ensures predictable startup behavior in embedded applications.
Can the HCF4018BEY be safely operated at 20 V while driving inductive loads such as relays or solenoids without additional protection circuitry?
While the HCF4018BEY supports up to 20 V on its supply pins, directly switching inductive loads from its output pins is not recommended due to potential voltage spikes exceeding the absolute maximum rating of individual I/O pins (±20 V). A flyback diode or transient voltage suppressor (TVS) must be used across the load, and output drivers should be isolated via optocouplers or buffer stages. Operating near the upper voltage limit also increases quiescent current and heat dissipation, reducing reliability over time—especially in compact through-hole assemblies without adequate thermal relief.
What trade-offs exist between using the HCF4018BEY in a high-frequency divider versus a lower-frequency prescaler when minimizing phase noise is a primary concern?
At higher division ratios (e.g., divide-by-32), the HCF4018BEY’s internal propagation delays accumulate, introducing fixed latency and potential jitter accumulation in feedback loops. Lower-frequency applications reduce this effect but may require cascading multiple stages for fine resolution. For minimal phase noise, single-stage divisions with moderate ratios (e.g., divide-by-8 or -16) are preferable, as they preserve clock edge sharpness and simplify filtering. The 17 MHz maximum count rate sets an upper bound; exceeding this degrades edge fidelity and increases uncertainty in downstream timing-critical circuits.
How does the Moisture Sensitivity Level (MSL) of 3 for the HCF4018BEY influence handling procedures in automated assembly lines, and what reflow profile adjustments might be needed?
With an MSL rating of 3, the HCF4018BEY must be used within 168 hours after opening the moisture-barrier bag if stored improperly. In automated pick-and-place operations, this necessitates real-time tracking of floor life and re-bagging upon exposure. Standard lead-free reflow profiles (e.g., peak 245°C) are acceptable, but prolonged dwell above 220°C should be avoided to prevent package delamination. Operators must follow JEDEC J-STD-020 guidelines, including baking before use if shelf life exceeds limits, to ensure long-term solder joint integrity.
What role does the Base Product Number HCF4018 play in component lifecycle management, and how does it affect sourcing strategy for industrial-grade applications?
The Base Product Number HCF4018 identifies a family of variants including the HCF4018BEY, which share core architecture but differ in packaging, speed grade, or environmental ratings. Maintaining focus on this base number enables bulk procurement strategies and simplifies BOM revisions across product generations. For industrial applications requiring extended temperature ranges (-55°C to +125°C), verifying that suppliers continue to qualify the HCF4018BEY under their quality systems—rather than offering only newer or obsolete variants—is essential for long-term supply chain resilience.

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics HCF4018BEY

Product Attribute HCF40193BEY HCF4017BEY HCF4020BEY HCF4017M013TR
Part Number HCF40193BEY HCF4017BEY HCF4020BEY HCF4017M013TR
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Timing - - - -
Base Product Number - DAC34H84 MAX500 ADS62P42
Supplier Device Package - 196-NFBGA (12x12) 16-PDIP 64-VQFN (9x9)
Logic Type - - - -
Direction - - - -
Number of Bits per Element - - - -
Mounting Type - Surface Mount Through Hole Surface Mount
Voltage - Supply - - - -
Number of Elements - - - -
Package / Case - 196-LFBGA 16-DIP (0.300', 7.62mm) 64-VFQFN Exposed Pad
Count Rate - - - -
Package - Tape & Reel (TR) Tube Tape & Reel (TR)
Reset - - - -
Trigger Type - - - -
Series - - - -
Operating Temperature - -40°C ~ 85°C 0°C ~ 70°C -40°C ~ 85°C

HCF4018BEY Datasheet PDF

Download HCF4018BEY pdf datasheets and STMicroelectronics documentation for HCF4018BEY - STMicroelectronics.

Datasheets
HCF4018B.pdf

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Customer Reviews

Evaluation: 10 Articles

  • Nath***rooks
    Jun 11, 2026

    Installed this power component in a converter board. Output remained stable under different load conditions and thermal performance was better than expected.

  • Dani***alkerTech
    Jun 1, 2026

    Product works, but setup took more effort than expected. Once configured the MCU ran reliably, although documentation support felt older compared with newer platforms. Fine for maintenance projects.

  • Yuki***aka88
    May 26, 2026

    信号通信プロジェクトでこのRS-485トランシーバーを使用しました。設置は簡単で、長距離ケーブルでも通信は安定していました。消費電力も、以前使用していたものより低くなっています。

  • Stev***aker
    May 20, 2026

    Solid diode for power rectification. Works well in switching circuits.

  • Bran***Lewis
    May 11, 2026

    Compact FPGA with good performance. Suitable for basic signal processing tasks.

  • Oliv***arris
    May 7, 2026

    Reliable I/O expander. Works well in embedded control applications.

  • Jess***Jones
    Apr 17, 2026

    It offers good value for the price, and the specifications match the description. I’ve been using it for two days with no issues, and I’ll definitely buy it again if I need it in the future.

  • Mich***Smith
    Apr 17, 2026

    Shipping was on time, the component pins are neatly aligned, and I tested 10 of them with a multimeter—all readings were within the specified range. Highly recommended.

  • Aman***arris
    Apr 3, 2026

    It was great—the entire process, from placing the order to receiving the package, went very smoothly. The components were consistent, the price was fair, and I had a very pleasant shopping experience.

  • Mike***nch
    Apr 3, 2026

    Better than expected! The resistance and capacitance readings were spot-on, and it passed the test on the first try. The service was reliable, and the packaging was thoughtful—I highly recommend it.

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Shipment

Delivery Time

In-stock items can be shipped within 24 hours. Some parts will be arranged for delivery within 1-2 days from the date all items arrive at our warehouse. And Allelco ships order once a day at about 17:00, except Sunday. Once the goods are shipped, the estimated delivery time depends on the shipping methods and Delivery destination. The table below shows are the logistic time for some common countries.

Delivery Cost

  1. Use your express account for shipment if you have one.
  2. Use our account for the shipment. Refer to the table below for the approximate charges.
(Different time frame / countries / package size has different price.)

Delivery Method

  1. Global Common Shipment by DHL / UPS / FedEx / TNT / EMS / SF we support.
  2. Others more shipping ways, please get in touch with your customer manager.

Common Countries Logistic Time Reference
Region Country Logistic Time(Day)
America United States 5
Brazil 7
Europe Germany 5
United Kingdom 4
Italy 5
Oceania Australia 6
New Zealand 5
Asia India 4
Japan 4
Middle East Israel 6
DHL & FedEx Shipment Charges Reference
Shipment charges(KG) Reference DHL(USD$)
0.00kg-1.00kg USD$30.00 - USD$60.00
1.00kg-2.00kg USD$40.00 - USD$80.00
2.00kg-3.00kg USD$50.00 - USD$100.00
Note:
The above table is for reference only. There may have some data bias for the uncontrollable factors.
Contact us if you have any questions.
  • QC (Quality Warranty)
  • Payment Support
  • Packaging
  • Certifications & Memberships

QC (Quality Warranty)

Allelco is committed to exceeding customer expectations through customer service excellence, order accuracy, and on-time delivery.
This is achieved through our commitment to the continual improvement of our processes, services, and products.


Strict quality inspection builds a solid foundation for electronic component quality.
  1. Visual inspection
  2. Performance testing and reliability verification
  3. Standardized full-process testing
  4. Precise control of every parameter
We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
Quality Inspection
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Payment Support

The payment method can be chosen from the methods shown below: Wire Transfer (T/T, Bank Transfer), Western Union, Credit card, PayPal.
  • HKBea
  • Paypal
  • MasterCard
  • Western-Union
  • VISA
Stable Delivery, Sincere Partnership — Your Faithful Supply Chain Partner
  • Efficient Supply Management
  • Cost-Saving Procurement
  • Fast Sourcing & Delivery
Contact us if you have any questions.

Packaging

Electrostatic Discharge Protection and Handling

All electrostatic-sensitive components are handled in accordance with electrostatic discharge control procedures. The products are hermetically sealed in anti-static safe packaging to prevent electrostatic damage. Appropriate labeling is also applied for identification and traceability. This ensures product integrity during storage, handling and transportation.


ESD

Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
  • ISO 13485: 2016
  • ISO 14001: 2015
  • ISO 28000: 2007
  • ISO 45001: 2018
  • GB/T 27922-2011
  • SMTA
  • IPC
  • ESD
  • PSMA
HCF4018BEY Image

HCF4018BEY

STMicroelectronics
32D-HCF4018BEY

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