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PCA9500PW,118
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PCA9500PW,118

Product Overview

  • Category: Integrated Circuit (IC)
  • Use: I2C-bus controlled 16-bit I/O expander
  • Characteristics:
    • Low-voltage bidirectional voltage-level translator
    • Supports I2C Fast-mode Plus (Fm+) with up to 1 MHz clock frequency
    • 5 V tolerant inputs and outputs
    • Open-drain interrupt output
    • Schmitt-trigger action on all inputs
  • Package: TSSOP24
  • Essence: The PCA9500PW,118 is a versatile IC that allows for easy expansion of input/output capabilities in various electronic systems.
  • Packaging/Quantity: Available in reels of 2500 units.

Specifications

  • Supply Voltage: 1.65 V to 5.5 V
  • Operating Temperature Range: -40°C to +85°C
  • I2C-bus Interface: Compatible with I2C-bus Fast-mode Plus (Fm+)
  • Number of I/O Pins: 16
  • Interrupt Output: Open-drain
  • Input Hysteresis: Schmitt-trigger action on all inputs
  • ESD Protection: Human Body Model (HBM) ±2000 V, Machine Model (MM) ±200 V

Detailed Pin Configuration

The PCA9500PW,118 has a TSSOP24 package with the following pin configuration:

  1. SDA - Serial Data Input/Output
  2. SCL - Serial Clock Input
  3. INT - Interrupt Output
  4. GND - Ground
  5. P00 - General Purpose I/O Pin 0
  6. P01 - General Purpose I/O Pin 1
  7. P02 - General Purpose I/O Pin 2
  8. P03 - General Purpose I/O Pin 3
  9. P04 - General Purpose I/O Pin 4
  10. P05 - General Purpose I/O Pin 5
  11. P06 - General Purpose I/O Pin 6
  12. P07 - General Purpose I/O Pin 7
  13. P10 - General Purpose I/O Pin 8
  14. P11 - General Purpose I/O Pin 9
  15. P12 - General Purpose I/O Pin 10
  16. P13 - General Purpose I/O Pin 11
  17. P14 - General Purpose I/O Pin 12
  18. P15 - General Purpose I/O Pin 13
  19. VCC - Supply Voltage
  20. NC - No Connection
  21. NC - No Connection
  22. NC - No Connection
  23. NC - No Connection
  24. NC - No Connection

Functional Features

  • Bidirectional voltage-level translation between different voltage domains.
  • Supports high-speed communication with devices operating at up to 1 MHz clock frequency.
  • Provides 16 general-purpose I/O pins for input or output expansion.
  • Open-drain interrupt output for system notifications.
  • Schmitt-trigger action on all inputs ensures reliable signal detection.

Advantages and Disadvantages

Advantages: - Wide supply voltage range allows compatibility with various systems. - High-speed communication capability enhances system performance. - Flexible I/O configuration enables versatile applications. - Robust ESD protection ensures device reliability.

Disadvantages: - Limited number of I/O pins may restrict the expansion capabilities in complex systems. - TSSOP24 package may require careful PCB layout design for optimal performance.

Working Principles

The PCA9500PW,118 is designed to expand the input/output capabilities of electronic systems using the I2C-bus interface. It acts as a bidirectional voltage-level translator, allowing communication between devices operating at different voltage levels. The IC supports high-speed communication up to 1 MHz and provides 16 general-purpose I/O pins for system expansion. It also features an open-drain interrupt output for system notifications. The Schmitt-trigger action on all inputs ensures reliable signal detection, even in noisy environments.

Detailed Application Field Plans

The PCA9500PW,118 finds applications in various electronic systems that require additional I/O capabilities. Some potential application fields include:

  1. Embedded Systems: Enhancing the I/O capabilities of microcontroller-based embedded systems.
  2. Industrial Automation: Expanding the input/output options in industrial automation equipment.
  3. Consumer Electronics: Enabling flexible I/O expansion in consumer electronic devices.
  4. Automotive Electronics: Supporting additional I/O requirements in automotive electronic systems.
  5. Internet of Things (IoT): Facilitating I/O expansion in IoT devices for sensor interfacing.

Detailed and Complete Alternative Models

  • PCA9500PW,112
  • PCA9500PW,124
  • PCA9500PW,132
  • PCA9500PW,144

These alternative models offer similar functionality and pin configuration,

Lista 10 Vanliga frågor och svar relaterade till tillämpningen av PCA9500PW,118 i tekniska lösningar

Sure! Here are 10 common questions and answers related to the application of PCA9500PW,118 in technical solutions:

  1. Q: What is PCA9500PW,118? A: PCA9500PW,118 is a general-purpose I/O expander that provides remote I/O expansion for most microcontroller families via the I2C-bus interface.

  2. Q: What is the maximum number of I/O pins supported by PCA9500PW,118? A: PCA9500PW,118 supports up to 40 I/O pins, which can be configured as inputs or outputs.

  3. Q: How does PCA9500PW,118 communicate with a microcontroller? A: PCA9500PW,118 communicates with a microcontroller using the I2C-bus interface, allowing for easy integration into various systems.

  4. Q: Can PCA9500PW,118 be used with both 3.3V and 5V microcontrollers? A: Yes, PCA9500PW,118 is compatible with both 3.3V and 5V microcontrollers, making it versatile for different system requirements.

  5. Q: What are some typical applications of PCA9500PW,118? A: PCA9500PW,118 is commonly used in applications such as industrial automation, home automation, IoT devices, and control systems.

  6. Q: Does PCA9500PW,118 support interrupt functionality? A: Yes, PCA9500PW,118 supports interrupt functionality, allowing for efficient event-driven designs and reducing the need for continuous polling.

  7. Q: Can PCA9500PW,118 be cascaded to expand the number of I/O pins further? A: Yes, multiple PCA9500PW,118 devices can be cascaded together to expand the number of I/O pins beyond the initial 40.

  8. Q: What is the maximum operating frequency of PCA9500PW,118? A: PCA9500PW,118 can operate at a maximum frequency of 400 kHz on the I2C-bus interface.

  9. Q: Does PCA9500PW,118 have built-in pull-up resistors for the I2C-bus? A: Yes, PCA9500PW,118 has built-in programmable pull-up resistors for the I2C-bus, simplifying the design and reducing external components.

  10. Q: Is there any documentation available for PCA9500PW,118 to assist with its implementation? A: Yes, NXP provides detailed datasheets, application notes, and reference designs for PCA9500PW,118, which can be accessed on their website.

Please note that these answers are general and may vary depending on the specific requirements and implementation of PCA9500PW,118 in different technical solutions.