HCTL-2022 – 8-Bit Quadrature Decoder/Counter IC – Broadcom Limited

Streamline motion control systems with the HCTL-2022 interface IC from Broadcom. This specialized decoder/counter IC efficiently translates rotary encoder signals into microprocessor-readable data, reducing processing overhead in precision applications. PCX ensures genuine Broadcom components with same-day shipping and technical support.

Key Features

• 8-Bit Tristate Interface for direct microprocessor communication
• 4.5V–5.5V Operating Voltage for TTL compatibility
• Quadrature decoding with 4x counting resolution
• Through-hole 20-PDIP package (7.62mm width)
• Designed for encoder-to-processor signal conversion

Technical Details

The HCTL-2022 integrates quadrature decoding and 32-bit counting logic in a single 20-pin DIP package. Its 8-bit tristate parallel output interfaces directly with microprocessors, eliminating external logic components. The device operates across industrial temperature ranges (specified in datasheet) with 5V TTL-level compatibility. Note: This part is marked obsolete by Broadcom but remains available through PCX’s legacy component inventory.

Typical Applications

• Industrial motor position feedback systems
• CNC machine axis position monitoring
• Robotic joint angle measurement
• Optical encoder signal processing
• Precision motion control instrumentation

About Broadcom Limited

Broadcom Limited (formerly Avago Technologies) is a global leader in semiconductor solutions for industrial, automotive, and communications markets. With over 50 years of innovation, Broadcom’s interface ICs set industry standards for signal integrity and reliability in harsh environments.

Their specialized components undergo rigorous qualification testing, ensuring consistent performance in mission-critical applications. Broadcom’s expertise in optoelectronics and motion control interfaces makes them the preferred choice for precision sensing designs worldwide.

About Interface Specialized ICs

Interface ICs bridge sensors and processors by converting electrical signals between incompatible systems. These specialized components perform essential functions like signal conditioning, protocol conversion, and noise filtering that standard logic ICs cannot handle efficiently.

In motion control systems, dedicated interface ICs like quadrature decoders offload timing-critical tasks from main processors, improving system responsiveness while reducing firmware complexity. Proper interface selection directly impacts measurement accuracy, noise immunity, and overall reliability in industrial automation designs.

Packaging Information

Available in protective tube packaging. Contact PCX for bulk order options and reel packaging alternatives.

Frequently Asked Questions

Q: Is this IC suitable for new designs despite being obsolete?
A: While not recommended for new designs, it remains ideal for maintenance and repair of existing systems. PCX maintains stock for legacy support.

Q: What’s the difference between quadrature decoding and standard counting?
A: Quadrature decoding interprets both direction and movement from dual-phase encoder signals, providing 4x resolution compared to simple pulse counting.

Q: Can this IC handle high-speed encoders?
A: Yes, with a maximum clock frequency of 14MHz (refer to datasheet for exact specifications at your voltage).

Q: Does PCX provide datasheets for this component?
A: Yes, download the full HCTL-2022 datasheet from our technical resources section.

Q: What’s the advantage of 8-bit tristate output?
A: Allows direct connection to microprocessor buses with high-impedance state for bus contention prevention.

Q: Can I get samples before volume ordering?
A: PCX offers sample quantities – contact our support team for availability.

⚠️ Note: Product images are representational. Actual part bears Broadcom Limited markings.

Order your HCTL-2022 today for same-day shipping! PCX maintains limited stock of this legacy component – secure your supply before inventory depletes. [Button: Add to Cart]