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HomeProductsIntegrated Circuits (ICs)Logic - Counters, DividersHCF4017BEY
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HCF4017BEY - STMicroelectronics

Manufacturer Part Number
HCF4017BEY
Manufacturer
STMicroelectronics
Allelco Part Number
32D-HCF4017BEY
Warranty
1 Year Allelco Warranty - Find out more
Stock Status:
10,180 pcs available, New & Original
Parts Description
IC DECADE COUNTER 10-BIT 16DIP
Package
16-DIP
Data sheet
HCF4017BEY.pdf
RoHs Status
ROHS3 Compliant
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In stock: 10180

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Specifications

HCF4017BEY Tech Specifications
STMicroelectronics - HCF4017BEY technical specifications, attributes, parameters and parts with similar specifications to STMicroelectronics - HCF4017BEY

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 10
Mounting Type Through Hole
Logic Type Counter, Decade
Direction Up
Count Rate 11 MHz
Base Product Number HCF4017

Environmental & Export Classifications

ATTRIBUTE DESCRIPTION
RoHs Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 1 (Unlimited)
REACH Status REACH Unaffected
ECCN EAR99
HTSUS 8542.39.0001

Parts Introduction

HCF4017BEY Image
HCF4017BEY (1)

Manufacturer Part Number

HCF4017BEY

Manufacturer

stmicroelectronics

Introduction

The HCF4017BEY is a decade counter/divider integrated circuit, part of the 4000B series, designed primarily for counting applications.

Product Features and Performance

Decade counter with 10 decoded outputs

Asynchronous reset

Synchronous timing

Positive and negative edge-triggered counting

High count rate up to 11 MHz

Supports a wide range of supply voltages from 3 V to 20 V

Operating temperature from -55°C to 125°C

Product Advantages

High-speed operation

Flexible voltage range accommodates varying power supplies

Decade counting simplifies the division of frequencies

Wide operating temperature suitable for extreme environments

Key Technical Parameters

Logic Type: Counter, Decade

Direction: Up

Number of Elements: 1

Number of Bits per Element: 10

Reset: Asynchronous

Timing: Synchronous

Count Rate: 11 MHz

Trigger Type: Positive, Negative

Voltage Supply: 3 V ~ 20 V

Operating Temperature: -55°C ~ 125°C

Quality and Safety Features

Designed to meet rigorous industry standards for quality and reliability

Compatibility

Through Hole mounting compatible with standard PCBs

Package / Case: 16-DIP suitable for various socket or directly soldered applications

Application Areas

Frequency division

Digital counters in electronics

Timing circuits in various devices

Educational projects involving digital logic

Product Lifecycle

Status: Obsolete

Note: This product is nearing discontinuation and parties should consider arranging for replacements or finding upgrades.

Several Key Reasons to Choose This Product

High reliability in temperature-extreme environments

Versatility in power supply requirements

High-speed operation facilitating quick counts

Easy integration with existing setups due to standard DIP packaging

Useful for educational purposes and professional applications alike due to simplistic yet robust functionality

Frequently Asked Questions(FAQ)

How does the HCF4017BEY compare to the CD4017BE in terms of supply voltage tolerance and temperature range for industrial applications?
The HCF4017BEY supports a supply voltage range of 3 V to 20 V, which is broader than many standard CMOS logic families, allowing flexibility in power management. It operates reliably from -55°C to 125°C, matching or exceeding the temperature performance of the CD4017BE. While both parts share the same base function—a 10-bit decade counter—the HCF4017BEY benefits from STMicroelectronics' enhanced process technology, offering lower power consumption at higher frequencies. This makes it suitable for harsh environments where thermal stability and wide voltage compatibility are critical.
What are the key differences between synchronous and asynchronous reset behavior in the HCF4017BEY, and how should this influence timing design?
The HCF4017BEY features an asynchronous reset, meaning it can be cleared immediately regardless of the clock signal, unlike synchronous designs that require a clock edge. This allows rapid state initialization but introduces potential race conditions if not managed carefully during startup or fault recovery. In high-speed applications, designers must ensure that reset pulses meet minimum assertion times relative to clock edges to prevent glitches. For systems requiring deterministic behavior, this characteristic enables faster response during initialization compared to synchronous counterparts.
Can the HCF4017BEY reliably drive multiple LED segments in a multiplexed display without external buffering?
The HCF4017BEY provides 10 decoded outputs (one-hot), making it ideal for driving up to ten LEDs directly. However, when used in multiplexed displays with higher current requirements, internal output drivers may not handle sustained load currents beyond typical LED forward currents (~10–20 mA per pin). Exceeding these levels risks overheating and premature failure. In such cases, external transistors or driver ICs are recommended. At 20 V operation, total power dissipation must also be evaluated across all active outputs during duty cycle cycling.
What is the impact of operating the HCF4017BEY near its maximum count rate on signal integrity in long PCB traces?
With a specified count rate of 11 MHz, the HCF4017BEY can generate rapid state transitions across its decade sequence. When outputs are routed over long traces (>10 cm), parasitic inductance and capacitance may cause ringing or propagation delays exceeding internal setup times. This could lead to metastability or incorrect decoding in downstream logic. Designers should limit trace lengths, use impedance-controlled routing, or reduce clock frequency below 5 MHz in noisy environments. Decoupling capacitors near the VCC and GND pins help stabilize supply integrity under dynamic switching loads.
How does the HCF4017BEY handle simultaneous positive and negative edge triggering, and what precautions apply?
The HCF4017BEY supports dual-edge triggering (positive and negative), enabling higher effective counting rates by responding to both clock edges. However, unintended toggling may occur if noise induces false transitions on either edge. To mitigate this, input signals must have sharp rise/fall times with minimal overshoot. Additionally, clock skew between multiple stages or cascaded counters should be minimized. If single-edge operation is preferred, only one trigger type should be used, and the unused input should be tied to a stable logic level to avoid oscillation.
Is it acceptable to cascade two HCF4017BEY devices to create a modulo-100 counter without additional synchronization circuitry?
Cascading two HCF4017BEY counters via the carry-out (CO) pin can form a modulo-100 counter. However, due to internal propagation delays and slight variations between units, timing mismatches may arise, especially near 11 MHz operation. Without careful layout and matched clock paths, the second stage might latch intermediate states incorrectly. Using buffered clocks and ensuring clean CO signal transitions reduces risk. Alternatively, adding a small RC filter or Schmitt-trigger buffer at the carry line improves noise immunity. Verification through simulation or prototype testing is strongly advised before production deployment.
What factors determine whether the HCF4017BEY is suitable for battery-powered applications versus high-voltage industrial systems?
The HCF4017BEY’s wide supply range (3 V to 20 V) allows reuse across domains, but efficiency considerations differ. At 3 V operation, static power remains low due to CMOS design, making it viable for battery use. However, dynamic power scales with frequency and load; reducing clock speed below 1 MHz extends battery life significantly. Conversely, in 20 V systems, leakage current increases slightly, though still within acceptable limits. Thermal dissipation becomes relevant only under high-duty-cycle loading. Thus, application context—not just voltage—dictates suitability.
How does the moisture sensitivity level (MSL = 1) affect handling requirements for the HCF4017BEY in automated assembly?
Classified as MSL 1, the HCF4017BEY has no moisture sensitivity concerns and can be stored indefinitely under normal conditions without baking prior to reflow. This simplifies inventory logistics and supports high-volume manufacturing workflows involving lead-free soldering profiles. As a through-hole device, it avoids some flux-related issues seen in fine-pitch surface-mount parts, but standard ESD protocols still apply due to CMOS vulnerability. No special handling beyond standard JEDEC guidelines is required.
What substitution options exist for the HCF4017BEY, and how do they compare functionally?
Substitutes include the CD4017BE and CD4017BEE4, both from Texas Instruments. These offer identical logic function, package compatibility (16-DIP), and similar electrical characteristics. Key differences lie in manufacturer-specific process optimizations: the HCF4017BEY typically delivers better high-frequency performance and slightly lower propagation delay at elevated temperatures. Voltage and temperature ranges overlap fully. Selection depends on availability, cost targets, and required margin above 11 MHz operation. Always verify timing diagrams and noise margins in the target environment.
Why might a designer choose the HCF4017BEY over a microcontroller-based solution for simple sequential control?
The HCF4017BEY offers ultra-low gate count, deterministic timing, zero software overhead, and radiation-hardened variants (in extended temp grades). For repetitive, fixed-sequence tasks like stepper motor sequencing or display scanning, it eliminates firmware complexity, boot time, and memory footprint. Its one-hot decoding reduces decoding logic needed externally. While microcontrollers provide flexibility, discrete counters like the HCF4017BEY excel in reliability-critical, high-throughput scenarios where predictability outweighs programmability.

Parts with Similar Specifications

The three parts on the right have similar specifications to STMicroelectronics HCF4017BEY

Product Attribute HCF4017BEY HCF4018BEY HCF4017M013TR HCF40193BEY
Part Number HCF4017BEY HCF4018BEY HCF4017M013TR HCF40193BEY
Manufacturer STMicroelectronics STMicroelectronics STMicroelectronics STMicroelectronics
Logic Type Counter, Decade Divide-by-N Counter, Decade Binary Counter
Operating Temperature -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C -55°C ~ 125°C
Supplier Device Package 16-DIP 16-DIP 16-SO 16-DIP
Mounting Type Through Hole Through Hole Surface Mount Through Hole
Trigger Type Positive Edge Positive Edge Positive Edge Positive Edge
Number of Bits per Element 10 5 10 4
Direction Up Up Up Up, Down
Package / Case 16-DIP (0.300', 7.62mm) 16-DIP (0.300", 7.62mm) 16-SOIC (0.154', 3.90mm Width) 16-DIP (0.300", 7.62mm)
Package Tube Tube Tape & Reel (TR) Tube
Reset Asynchronous Asynchronous Asynchronous Asynchronous
Series 4000B 4000B 4000 4000B
Voltage - Supply 3 V ~ 20 V 3 V ~ 20 V 3 V ~ 20 V 3 V ~ 20 V
Base Product Number HCF4017 HCF4018 HCF4017 HCF4019
Count Rate 11 MHz 17 MHz 11 MHz 11 MHz
Number of Elements 1 1 1 1
Timing - - - Synchronous

HCF4017BEY Datasheet PDF

Download HCF4017BEY pdf datasheets and STMicroelectronics documentation for HCF4017BEY - STMicroelectronics.

HTML Datasheet
Cylindrical Battery Holders.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.
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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.
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We eliminate defective components and ensure the stable operation of electronic devices through professional quality standards.
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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.


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Certifications & Memberships

Third-party certified, strict quality control. Our certification
  • ISO 9001: 2015
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  • IPC
  • ESD
  • PSMA
HCF4017BEY Image

HCF4017BEY

STMicroelectronics
32D-HCF4017BEY

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