PCA9532D,112

Product Overview

Category

PCA9532D,112 belongs to the category of integrated circuits (ICs).

Use

The PCA9532D,112 is commonly used as an 8-bit I2C-bus and SMBus I/O expander. It provides general-purpose remote I/O expansion for most microcontroller families via the I2C-bus interface.

Characteristics

• 8-bit remote I/O port with interrupt and reset
• Low standby current consumption of 1 µA
• Compatible with most microcontrollers
• Supports both 3.3V and 5V voltage levels
• Wide operating voltage range: 2.3V to 5.5V
• High-speed I2C-bus interface with up to 400 kHz clock frequency
• Schmitt-trigger action allows slow input transition and better noise immunity
• Open-drain interrupt output
• ESD protection exceeds 2000V HBM per JESD22-A114 and 1000V CDM per JESD22-C101

Package

The PCA9532D,112 is available in a small package known as TSSOP16. This package offers a compact size and easy integration into various electronic devices.

Essence

The essence of PCA9532D,112 lies in its ability to expand the input/output capabilities of microcontrollers through the I2C-bus interface.

Packaging/Quantity

The PCA9532D,112 is typically packaged in reels containing 2500 units. However, it can also be purchased in smaller quantities depending on the requirements of the user.

Specifications

• Supply Voltage Range: 2.3V to 5.5V
• Operating Temperature Range: -40°C to +85°C
• I2C-bus Frequency: Up to 400 kHz
• Number of I/Os: 8
• Input/Output Voltage Levels: 0V to VDD
• Standby Current: 1 µA (maximum)
• Package Type: TSSOP16

Detailed Pin Configuration

The PCA9532D,112 has a total of 16 pins arranged as follows:

```

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| | | 1 2 3 | | | | 4 5 6 | | | | 7 8 9 | | | | 10 11 12 | | | | 13 14 15 | |_______________| ```

Pin Description: 1. SDA - Serial Data Input/Output 2. SCL - Serial Clock Input 3. A0 - Address Input 4. A1 - Address Input 5. RESET - Active-Low Reset Input 6. INT - Interrupt Output 7. P0 - General Purpose I/O Port 0 8. P1 - General Purpose I/O Port 1 9. P2 - General Purpose I/O Port 2 10. P3 - General Purpose I/O Port 3 11. P4 - General Purpose I/O Port 4 12. P5 - General Purpose I/O Port 5 13. P6 - General Purpose I/O Port 6 14. P7 - General Purpose I/O Port 7 15. GND - Ground 16. VDD - Supply Voltage

Functional Features

• I2C-bus and SMBus compatible interface for easy integration with microcontrollers.
• 8-bit remote I/O port allows expansion of input/output capabilities.
• Low standby current consumption ensures energy efficiency.
• Schmitt-trigger action provides better noise immunity.
• Open-drain interrupt output for efficient communication.

Advantages and Disadvantages

Advantages

• Easy integration with most microcontrollers.
• Wide operating voltage range allows compatibility with various systems.
• Low standby current consumption ensures energy efficiency.
• Schmitt-trigger action improves noise immunity.
• Compact package size enables space-saving designs.

Disadvantages

• Limited number of I/O ports (8 in total).
• Requires an external pull-up resistor for proper I2C-bus operation.

Working Principles

The PCA9532D,112 operates as an I/O expander by communicating with a microcontroller through the I2C-bus interface. It receives commands from the microcontroller to set the input/output states of its 8-bit remote I/O port. The device can be configured to operate in either input or output mode for each individual I/O pin. The interrupt output can be used to notify the microcontroller of any changes in the input states. The PCA9532D,112 is powered by the supply voltage (VDD) and requires proper grounding (GND) for correct operation.