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,