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PCA9535PW

Name: PCA9535PW
Rating: 4.7 (12 reviews)

IC XPND 400KHZ I2C SMBUS 24TSSOP

Производитель
Мфр. Часть #PCA9535PW
Пакет
Лист данных PCA9535PW DataSheet
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Спецификации

Part Status	Obsolete
Base Product Number	PCA9535
DigiKey Programmable	Not Verified
Number of I/O	16
Interface	I2C, SMBus
Interrupt Output	Yes
Features	POR
Output Type	Push-Pull
Current - Output Source/Sink	10mA, 25mA
Clock Frequency	400 kHz
Voltage - Supply	2.3V ~ 5.5V
Operating Temperature	-40°C ~ 85°C
Mounting Type	Surface Mount
Package	24-TSSOP (0.173", 4.40mm Width)
Supplier Device Package	24-TSSOP
Packaging	Tube

Обзор

Description

The PCA9535PW is a 16-bit I/O port expander for I2C bus applications, designed by NXP Semiconductors. It allows microcontrollers to expand their input/output capabilities by interfacing with additional devices without requiring more pins. The PCA9535PW features 8 GPIO pins that can be configured as inputs or outputs, enabling flexible control of various peripherals.
Key features include:
- I2C Interface: Supports standard and fast modes (up to 1 MHz).
- Interrupt Functionality: Alerts the host microcontroller of changes in input states.
- Multiple Device Support: Up to eight devices can be connected on the same I2C bus using configurable addresses.
- Operating Voltage: Typically operates from 2.3V to 5.5V, making it suitable for a range of applications.
- Low Power Consumption: Designed for efficiency, making it ideal for battery-powered applications.
The PCA9535PW is widely used in consumer electronics, automotive, and industrial applications for enhancing I/O capabilities.

Features

The PCA9535PW is a 16-pin I2C-bus I/O port expander designed to increase the number of input/output pins available for microcontrollers. Key features include:
1. I2C Interface: Supports standard I2C mode (100 kHz and 400 kHz).
2. 16 GPIO Pins: Configurable as either inputs or outputs, allowing flexible interfacing with various devices.
3. Interrupt Capability: Provides interrupt output for detecting state changes on input pins.
4. Wide Voltage Range: Operates from 2.3V to 5.5V, making it suitable for a variety of applications.
5. Multiple Device Support: Up to eight PCA9535 devices can be connected on the same I2C bus using different addresses.
6. Low Power Consumption: Features a low standby current, enhancing energy efficiency.
7. Programmable Pull-Up Resistors: Allows for easy configuration of input pins.
These features make the PCA9535PW ideal for applications requiring additional I/O capabilities in compact electronic designs.

Package

The PCA9535PW is available in a TSSOP (Thin Shrink Small Outline Package) package with 16 pins. This compact package is designed for low-profile applications, providing efficient space utilization on PCBs.

Pinout

The PCA9535PW is a 16-pin I2C-bus I/O port expander with interrupt capability. It features 8 bits of general-purpose parallel input/output (GPIO) and is designed to expand the number of I/O ports for microcontrollers.
Pin Count and Functions:
1. VDD (Pin 1): Power supply.
2. GND (Pin 2): Ground.
3. SDA (Pin 3): I2C data line.
4. SCL (Pin 4): I2C clock line.
5. INT (Pin 5): Interrupt output.
6. P0 to P7 (Pins 6-13): GPIO pins, configurable as input or output.
7. A0, A1 (Pins 14-15): Address selection pins to set device I2C address.
8. N.C. (Pin 16): No connection.
The PCA9535 allows for flexible control of peripheral devices while utilizing minimal pins from the host microcontroller, making it ideal for applications requiring additional GPIO.

Manufacturer

The PCA9535PW is manufactured by NXP Semiconductors, a global semiconductor company headquartered in Eindhoven, Netherlands. NXP specializes in designing and manufacturing a wide range of semiconductor components, including microcontrollers, processors, and various types of integrated circuits (ICs). The company focuses on automotive, industrial, and Internet of Things (IoT) applications, providing solutions that enhance connectivity, security, and efficiency in electronic devices. NXP is well-known for its innovation in embedded systems and is a major player in the semiconductor industry, serving various markets worldwide.

Application

The PCA9535PW is a 16-bit I/O port expander with an I2C interface, commonly used in applications such as industrial automation, consumer electronics, and embedded systems. It enables expanding GPIO capabilities for microcontrollers, facilitating keypad interfaces, LED control, sensor inputs, and communication with various peripherals. Its ability to manage multiple devices on a single bus makes it ideal for compact designs in robotics and smart home devices.

Equivalent

The PCA9535PW is an I2C I/O expander with 16 GPIO pins. Equivalent products include:
1. MCP23017 - 16-bit I/O expander from Microchip.
2. PCF8575 - 16-bit I/O expander from NXP.
3. MCP23008 - 8-bit I/O expander from Microchip.
4. TCA9555 - 16-bit I/O expander from Texas Instruments.
These alternatives may have different features or specifications, so check datasheets for compatibility.

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