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HC4P5502B-5 from HAR

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HC4P5502B-5

Manufacturer: HAR, HARRIS, INTERSIL

EIA/ITU PABX SLIC with 30mA Loop Feed

Partnumber Manufacturer Quantity Availability
HC4P5502B-5,HC4P5502B5 HAR, HARRIS, INTERSIL 2763 In Stock

Description and Introduction

EIA/ITU PABX SLIC with 30mA Loop Feed The **HC4P5502B-5** from Intersil is a high-performance electronic component designed for precision timing and signal processing applications. As part of the HC4P series, this device integrates advanced CMOS technology to deliver reliable operation with low power consumption, making it suitable for a wide range of industrial and consumer electronics.  

Featuring a compact design and robust performance, the HC4P5502B-5 is optimized for applications requiring accurate clock generation, frequency synthesis, or timing control. Its low-jitter characteristics ensure stable signal integrity, which is critical in communication systems, embedded designs, and test equipment.  

Key specifications include a wide operating voltage range, high noise immunity, and compatibility with standard logic levels, allowing seamless integration into existing circuit designs. The component’s temperature stability further enhances its suitability for demanding environments.  

Engineers and designers favor the HC4P5502B-5 for its balance of precision, efficiency, and versatility. Whether used in digital systems, instrumentation, or automation, this component provides dependable performance while minimizing power dissipation. Its industry-standard packaging ensures ease of implementation, making it a practical choice for both prototyping and production-scale applications.  

With its combination of technical excellence and reliability, the HC4P5502B-5 exemplifies Intersil’s commitment to high-quality timing solutions.

Application Scenarios & Design Considerations

EIA/ITU PABX SLIC with 30mA Loop Feed# Technical Documentation: HC4P5502B5 High-Speed CMOS Logic IC

 Manufacturer : HARRIS (now part of Renesas Electronics Corporation, following multiple acquisitions; legacy Harris Semiconductor product)
 Component Type : High-Speed CMOS (HCMOS) Digital Logic Gate / Buffer
 Date of Publication : [Current Date]
 Document Revision : 1.0

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## 1. Application Scenarios

The HC4P5502B5 is a legacy high-performance CMOS logic integrated circuit from the Harris Semiconductor HCMOS family. It is designed for digital systems requiring high speed, low power consumption, and reliable operation in various environments. While a specific, definitive datasheet for this exact part number is not publicly available in modern repositories (indicating its status as an older, possibly obsolete part), its naming convention (`HC4P`) places it firmly within the Harris  HCMOS 4P Series . This series was characterized by its military-grade processing, extended temperature range, and high reliability.

### Typical Use Cases
*    High-Speed Signal Buffering and Conditioning:  The primary function of components in this family is to regenerate digital signals, restore logic levels, and drive longer transmission lines or higher capacitive loads on a PCB without significant signal degradation or timing skew.
*    Clock Distribution Networks:  Used in systems to fan out a master clock signal to multiple synchronous devices (e.g., microprocessors, FPGAs, memory arrays) while maintaining signal integrity and minimizing jitter.
*    Interface Logic between Dissimilar Voltage Domains:  While not a level translator per se, its CMOS input structure with high noise immunity can be used in conjunction with appropriate supply voltages to interface between logic families, provided voltage compatibility is maintained.
*    Glitch Filtering and Signal Synchronization:  Can be used in debouncing circuits or to synchronize asynchronous signals to a system clock, improving system reliability.

### Industry Applications
1.   Military and Aerospace:  Due to its likely "P" suffix denoting military-grade processing (per MIL-STD-883), its primary historical application was in mission-critical systems requiring operation across extreme temperatures (-55°C to +125°C), high reliability, and radiation tolerance. Applications included avionics, radar systems, and secure communications equipment.
2.   Telecommunications Infrastructure:  Used in high-speed digital switching equipment, router backplanes, and base station timing circuits where signal integrity and reliability are paramount.
3.   Industrial Control Systems:  Employed in programmable logic controllers (PLCs), motor drives, and process automation equipment that operate in harsh industrial environments with wide temperature swings and electrical noise.
4.   Test and Measurement Equipment:  Utilized in the digital signal paths of oscilloscopes, logic analyzers, and automated test equipment (ATE) where precise timing and fast signal edges are required.

### Practical Advantages and Limitations
 Advantages: 
*    High Speed:  HCMOS technology offers propagation delays typically in the low nanosecond range, enabling high-frequency operation.
*    Low Power Consumption:  CMOS design provides very low static power dissipation, significantly lower than equivalent bipolar (TTL) parts of its era.
*    High Noise Immunity:  CMOS logic families feature wide noise margins (typically ~30% of Vcc), making them robust in electrically noisy environments.
*    Wide Supply Voltage Range:  HCMOS parts often operate from 2V to 6V, providing design flexibility.
*    High Reliability:  The military-grade 4P series was subjected to rigorous screening and testing, offering excellent long-term reliability.

 Limitations: 
*    Obsolescence Risk:  As a legacy Harris part, it may be obsolete or have limited availability. Direct replacements may be available from other manufacturers (e.g., Texas Instruments SN74 series, Renesas) in commercial or industrial grades.
*    Latch-Up Sensitivity

Alternative Part Number

  • PE-65508 --: Pin-compatible 10/100 base-T LAN isolation transformer with similar turns ratio and isolation rating, widely used as a drop-in replacement for HC4P5502B-5 in Ethernet magnetics applications.
  • H1102NL --: Single-port 10/100 Ethernet transformer module with comparable inductance and isolation characteristics, commonly cross-referenced for HAR HC4P5502B series parts.
  • TG110-E050N5RL --: 10/100 base-T magnetics module with matching pinout and electrical ratings, offered as an alternative source for the HC4P5502B-5 LAN transformer.
  • CD54HC4024F3A --: Harris HC-series CMOS logic was acquired by TI; this is a functionally similar HC-family part in a ceramic DIP package, suitable as a direct logic substitute.
  • MC74HC4024N --: Motorola/ON HC-series CMOS logic offers equivalent HC-family electrical characteristics and is a widely available alternative for legacy Harris HC parts.
  • SN74HC4024N --: Standard 74HC-series CMOS logic from TI provides comparable speed, voltage range, and drive characteristics for drop-in replacement in most designs.
  • CD74HC4050E --: High-speed CMOS hex non-inverting buffer with similar logic function and 5V operation, widely available and pin-compatible in function.
  • MC74HC4050N --: Equivalent HC-series hex buffer from a major second source, offering comparable speed and drive characteristics.
  • SN74HC4050N --: Alternative HC-family hex buffer with similar electrical specs, suitable as a functional replacement in most designs.

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