PCA9505DGG

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PCA9505DGG

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Interface - I/O Expanders 40-BIT I2C FM TP GPIO INT RST

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Specifications

Attribute Value
Packaging Tube
Standard Pack Qty 875

Overview

Description

The PCA9505DGG is a 40-bit I2C-bus I/O port with high-performance capabilities, produced by NXP Semiconductors. It is designed to interface microcontrollers with peripheral devices, enabling efficient data communication. This device is particularly useful in applications requiring multiple inputs and outputs, such as industrial control systems, instrumentation, and smart devices.
Key features of the PCA9505DGG include five 8-bit bidirectional I/O ports, each independently configurable. It operates over a wide voltage range, enhancing versatility across different applications. The I2C-bus interface allows for easy integration, supporting standard, fast, and high-speed modes. The PCA9505DGG also includes interrupt outputs, allowing for immediate reaction to input changes, thereby improving system responsiveness.
This IC supports addressable I2C communication, enabling multiple devices on the same bus without conflict. Its package is designed to minimize space on PCBs, making it suitable for compact applications. Overall, the PCA9505DGG is a reliable solution for expanding I/O capabilities in diverse electronic systems.

Equivalent

The PCA9505DGG is a 40-bit I2C-bus I/O port with interrupt and reset. Equivalent or similar products can include:
1. NXP PCA9555 - 16-bit I2C and SMBus I/O port with interrupt.
2. TI PCA9535 - 16-bit I2C and SMBus I/O expander.
3. Microchip MCP23017 - 16-bit I2C I/O expander with interrupt.
4. OnSemi CAT9555 - 16-bit I2C I/O port with interrupt.
Always verify pin compatibility and specific requirements before substituting.

Features

The PCA9505DGG is an I²C-bus controlled I/O port featuring 40-bit parallel input/output (GPIO) ports. Key features include:
1. I²C Interface: Supports both standard mode (100 kHz) and fast mode (400 kHz) I²C-bus communication, allowing for easy integration with various microcontrollers.
2. 40 GPIO Pins: The device offers five 8-bit I/O ports, providing a total of 40 GPIO lines, which can be configured individually as either inputs or outputs.
3. Interrupt Logic: Includes interrupt capability for enhanced monitoring of input changes, allowing the processor to respond immediately to external events.
4. Polarity Inversion: Programmable polarity inversion is available for each GPIO, enabling flexible signal management.
5. High Current Drive: Capable of sinking up to 25 mA per pin and sourcing up to 10 mA, suitable for driving LEDs or other moderate-power loads.
6. Integrated Pull-up Resistors: Configurable pull-up resistors are available on all pins to ensure reliable signal levels.
7. Wide Voltage Range: Operates over a wide VDD range from 2.3 V to 5.5 V, making it suitable for diverse applications.
8. ESD Protection: Enhanced ESD protection ensures robustness in various environments.
These features make the PCA9505DGG suitable for expanding the I/O capabilities of microcontrollers in embedded systems.

Pinout

The PCA9505DGG is an I²C-bus controlled I/O port with 40-bit parallel input/output ports. It is designed for applications requiring multiple I/O ports and features five 8-bit ports. The device operates as a bridge between an I²C-bus and parallel-bus devices through its GPIO pins.
The PCA9505DGG comes in a TSSOP (Thin Shrink Small Outline Package) with a total pin count of 56. The pins are used for various functions, including:
- Power supply connections (VDD and GND).
- I2C-bus interface pins (SDA and SCL) for data and clock signals.
- Multiple GPIO pins organized in five 8-bit ports (P0 to P4).
- Interrupt output pin (INT) for signaling changes on input port data.
- Reset pin (RESET) for resetting the device.
Each port can be individually configured as either an input or an output. The device is often utilized in systems requiring expanded I/O capabilities, such as embedded systems, to interface with sensors, actuators, or other peripheral devices.

Manufacturer

The PCA9505DGG is manufactured by NXP Semiconductors. NXP Semiconductors is a global semiconductor manufacturer headquartered in the Netherlands. The company specializes in producing a wide range of semiconductor products, including microcontrollers, communication processors, and integrated circuits for automotive, industrial, mobile, and other applications. NXP is known for its innovations in secure connectivity solutions for embedded applications and is a significant player in the semiconductor industry, providing essential components for various electronic devices and systems.

Application

The PCA9505DGG is a 40-bit I2C-bus I/O port with interrupt and reset features, commonly used in applications requiring multiple GPIO expansions. Key application areas include:
1. Industrial Control Systems: Used for monitoring and controlling various industrial processes.
2. Consumer Electronics: Provides additional I/O ports in devices like TVs, set-top boxes, and gaming consoles.
3. Networking Equipment: Supports configuration and control of network hardware.
4. Automotive Systems: Used in body electronics for signal monitoring and control.
5. Home Automation: Facilitates integration and control of smart home devices.
Its ability to expand I/O capabilities makes it versatile for various embedded systems requiring efficient communication and control.

Package

The PCA9505DGG is packaged in a TSSOP (Thin Shrink Small Outline Package) with 56 pins. This package type is compact, designed for space-efficient board layouts, and supports surface mounting, making it suitable for various electronic applications.

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