STMicroelectronics HCF4017M013TR

Summary of the HCF4017M013TR Decade Counter

The HCF4017M013TR from STMicroelectronics is a versatile decade counter IC, designed for applications requiring sequential logic and precise output decoding. Packaged in a space-efficient 16-pin small outline (SO-16) format, the HCF4017M013TR enables straightforward integration into modern digital systems. As a member of the reliable HCF4017B series, the device incorporates a 5-stage Johnson counter with 10 fully decoded outputs, offering engineers a robust solution for complex counting and sequencing applications.

Main Functional Characteristics of the HCF4017M013TR

The HCF4017M013TR is tailored for medium-speed operations, supporting clock frequencies up to 10 MHz when supplied at 10V. Its fully static design ensures reliable operation across a wide range of conditions. Distinctive features include Schmitt trigger input circuitry on the clock line, enabling robust pulse shaping and permitting clock signals with variable rise and fall times. Essential inputs such as CLOCK, RESET, and CLOCK INHIBIT furnish comprehensive control, allowing precise reset and gating functionalities in system-level circuits. Standardized symmetrical output characteristics and spike-free decoded outputs facilitate stable downstream interfacing, while an integrated CARRY-OUT signal provides easy cascading for multi-device counting architectures. The device adheres to JEDEC JESD13B standards, a testament to its quality and interoperability.

Electrical Specifications and Key Performance Metrics of the HCF4017M013TR

Engineered for wide compatibility, the HCF4017M013TR features distinct quiescent current and input leakage current specifications, with quiescent current tested up to 20V supply voltage and input leakage limited to 100nA (maximum) at 18V and 25°C. The device is characterized by robust noise margins—1V minimum at 5V supply, rising to 2.5V minimum at 15V—ensuring reliable digital logic interpretation even in noisy environments. Dynamic electrical specifications are benchmarked with loads such as 50pF capacitance and 200 kΩ resistance, enabling predictable timing behavior in practical circuits. The propagation delay, setup time, and minimum reset pulse width are carefully documented for reference in timing-critical designs.

Logic Structure and Pin Layout of the HCF4017M013TR

Internally, the HCF4017M013TR is based on a 5-stage Johnson counter, producing ten sequential output pulses. Each output is normally low, transitioning high for a single clock cycle at its designated slot. The decoded outputs simplify implementation of divide-by-N counters (with N ≤ 10), supporting modular system designs. In a typical pinout, the IC features dedicated lines for the ten decoded outputs, CARRY-OUT, CLOCK, RESET, CLOCK INHIBIT, and standard supply connections. The carry-out mechanism is particularly useful for synchronizing multiple counters in chain configurations, essential for designs involving higher count values or extended sequencing.

Suggested Operating Parameters and Reliability Aspects for the HCF4017M013TR

The HCF4017M013TR supports flexible supply voltage, operating reliably at 5V, 10V, and 15V, with corresponding parametric ratings. Engineers are encouraged to respect absolute maximum values, especially regarding supply and input voltages, to prevent device damage. All voltage specifications are referenced to the VSS pin, ensuring consistent system grounding practices. The temperature coefficient of dynamic parameters is approximately 0.3% per degree Celsius, enabling stable performance across typical commercial and industrial temperature ranges. Devices are tested 100% for quiescent current to meet stringent reliability standards.

Typical Application Schematics and Use Cases for the HCF4017M013TR

Decade counters such as the HCF4017M013TR find widespread use in timing, sequencing, LED driving, event counting, and divide-by-N applications. A representative engineering scenario might involve constructing a modular divide-by-N counter by combining the HCF4017M013TR with external flip-flops, using decoded outputs to generate precise timing pulses or control logic. The carry-out output permits cascading, extending the counting capacity for complex applications. Designs often leverage the clock inhibit and reset functions for gated counting and synchronous reset requirements in multi-part systems. Setup timing and propagation delay diagrams are essential references when integrating the device into high-speed digital designs.

Mechanical Specifications and Packaging Information for the HCF4017M013TR

STMicroelectronics supplies the HCF4017M013TR in the standard SO-16 footprint, balancing board space efficiency and ease of handling in automated assembly environments. Mechanical details including pin pitch and package dimensions adhere to established standards, facilitating straightforward PCB layout and compatibility with pick-and-place machinery. The device may also be available in DIP-16 for certain applications, enabling breadboard prototyping or socketed designs.

Possible Substitute or Alternative Models for the HCF4017M013TR

For engineers seeking alternatives to the HCF4017M013TR, other members of the HCF4017B family, such as the HCF4017B DIP variant, may present suitable substitutes where package format or leaded assembly is required. Functionally equivalent decade counters from other established CMOS logic series may also be considered, provided their pin-out and performance specifications align with system requirements. Selection should be driven by considerations of electrical compatibility, speed, and physical packaging.

Conclusion

The STMicroelectronics HCF4017M013TR offers an optimal blend of medium-speed performance, flexible gating, and decoded outputs—making it a prime choice for digital designers building counting and sequencing solutions. With its robust electrical characteristics, cascading support, and industry-standard packaging, the HCF4017M013TR provides proven reliability and ease of integration into commercial and industrial designs. Accurate understanding of its functional, timing, and package details positions engineers and procurement specialists to make confident selection decisions for their next generation of digital systems.