NXP USA Inc.
圖片可能僅供參考。
有關產品詳細信息，請參閱規格。
PCA9539BS,115
詳情 數據表

PCA9539BS,115

Product Overview

Category

PCA9539BS,115 belongs to the category of integrated circuits (ICs).

Use

This product is commonly used for controlling and expanding the input/output (I/O) capabilities of microcontrollers or other digital devices.

Characteristics

  • Integrated circuit
  • I2C-bus controlled 16-bit I/O expander
  • Low standby current consumption
  • Schmitt-trigger action on all inputs
  • Open-drain interrupt output
  • Noise filter on SDA/SCL inputs
  • ESD protection exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101

Package

PCA9539BS,115 is available in a small package, such as a 24-pin SSOP (Shrink Small Outline Package).

Essence

The essence of PCA9539BS,115 lies in its ability to provide additional I/O pins for digital devices, enabling them to interface with various external components.

Packaging/Quantity

This product is typically packaged in reels or tubes, containing a specific quantity of ICs. The exact quantity may vary depending on the manufacturer's specifications.

Specifications

  • Supply voltage: 2.3 V to 5.5 V
  • Input voltage range: 0 V to VDD
  • Output voltage range: 0 V to VDD
  • Maximum output current: ±10 mA
  • Operating temperature range: -40°C to +85°C

Detailed Pin Configuration

The PCA9539BS,115 has a total of 24 pins, which are assigned specific functions. The pin configuration is as follows:

  1. INT - Interrupt output
  2. A0 - Address input bit 0
  3. A1 - Address input bit 1
  4. A2 - Address input bit 2
  5. SDA - I2C-bus serial data input/output
  6. SCL - I2C-bus serial clock input
  7. RESET - Reset input
  8. P0 - General-purpose I/O pin 0
  9. P1 - General-purpose I/O pin 1
  10. P2 - General-purpose I/O pin 2
  11. P3 - General-purpose I/O pin 3
  12. P4 - General-purpose I/O pin 4
  13. P5 - General-purpose I/O pin 5
  14. P6 - General-purpose I/O pin 6
  15. P7 - General-purpose I/O pin 7
  16. GND - Ground
  17. P15 - General-purpose I/O pin 15
  18. P14 - General-purpose I/O pin 14
  19. P13 - General-purpose I/O pin 13
  20. P12 - General-purpose I/O pin 12
  21. P11 - General-purpose I/O pin 11
  22. P10 - General-purpose I/O pin 10
  23. VDD - Supply voltage
  24. P9 - General-purpose I/O pin 9

Functional Features

  • I2C-bus controlled: The PCA9539BS,115 can be easily controlled and accessed through the I2C-bus interface.
  • Expandable I/O capabilities: It provides 16 additional I/O pins, allowing for increased connectivity with external devices.
  • Schmitt-trigger action: All inputs feature Schmitt-trigger action, ensuring reliable signal processing even in the presence of noise.
  • Interrupt output: The interrupt output pin (INT) can be used to indicate changes in the input status.
  • ESD protection: The product offers high levels of electrostatic discharge (ESD) protection, safeguarding against potential damage.

Advantages and Disadvantages

Advantages

  • Easy integration with microcontrollers and digital devices
  • Expandable I/O capabilities
  • Reliable signal processing with Schmitt-trigger action
  • Provides interrupt functionality
  • High ESD protection levels

Disadvantages

  • Limited to 16 additional I/O pins
  • Requires I2C-bus interface for control

Working Principles

The PCA9539BS,115 operates by receiving commands and data through the I2C-bus interface. It interprets these commands to control the state of its 16 I/O pins. The device can be addressed using the address input pins (A0, A1, A2), allowing multiple PCA9539BS,115 ICs to coexist on the same I2C-bus.

Detailed Application Field Plans

The PCA9539BS,115 finds applications in various fields where additional I/O capabilities are required. Some potential application areas include:

  1. Industrial automation: Controlling sensors, actuators, and other peripheral devices.
  2. Home automation: Interfacing with smart home devices, such as lighting systems or security sensors.
  3. Automotive electronics:

10個與PCA9539BS,115在技術方案中應用相關的常見問題與解答

Sure! Here are 10 common questions and answers related to the application of PCA9539BS,115:

  1. Q: What is PCA9539BS,115? A: PCA9539BS,115 is a 16-bit I/O expander with interrupt output and configuration registers. It can be used to increase the number of I/O ports in a microcontroller-based system.

  2. Q: What is the maximum voltage that PCA9539BS,115 can handle? A: PCA9539BS,115 can handle a maximum voltage of 5.5V.

  3. Q: How many I/O pins does PCA9539BS,115 have? A: PCA9539BS,115 has 16 I/O pins that can be configured as inputs or outputs.

  4. Q: Can PCA9539BS,115 be used for both input and output operations simultaneously? A: Yes, PCA9539BS,115 supports both input and output operations on its I/O pins.

  5. Q: How can I communicate with PCA9539BS,115? A: PCA9539BS,115 uses the I2C interface for communication with a microcontroller or other devices.

  6. Q: What is the maximum frequency supported by PCA9539BS,115's I2C interface? A: PCA9539BS,115 supports a maximum I2C clock frequency of 400 kHz.

  7. Q: Can PCA9539BS,115 generate interrupts? A: Yes, PCA9539BS,115 has an interrupt output pin that can be configured to generate interrupts based on changes in the state of its I/O pins.

  8. Q: Is PCA9539BS,115 compatible with 3.3V microcontrollers? A: Yes, PCA9539BS,115 is compatible with both 3.3V and 5V microcontrollers.

  9. Q: Can PCA9539BS,115 be cascaded with other I/O expanders? A: Yes, multiple PCA9539BS,115 devices can be cascaded together to further increase the number of I/O ports in a system.

  10. Q: Are there any application examples for PCA9539BS,115? A: Yes, PCA9539BS,115 can be used in various applications such as LED matrix control, keypad scanning, and general-purpose I/O expansion.

Please note that these answers are general and may vary depending on the specific implementation and requirements of your technical solution.