規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Number of I/O | 8 |
| 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 |
概述
Description
The PCA9534ARGTR is a General Purpose Input/Output (GPIO) expander with an I²C interface. It provides a simple way to extend the number of GPIOs in microcontrollers or processors when additional I/O ports are required, especially in applications with limited pins. The device features 8-bit input/output ports, configurable as either inputs or outputs. Each I/O port can be independently controlled, allowing for versatile configurations.
Key features include interrupt capability for input changes, low standby current, and compatibility with I²C and SMBus interfaces. The device operates over a wide voltage range, supporting both 3.3V and 5V systems, and can handle up to 400 kHz I²C bus speeds. The PCA9534ARGTR is housed in a compact TSSOP package, making it suitable for space-constrained applications.
Typical applications include consumer electronics, industrial automation, and any system requiring remote expansion of GPIO ports. Its ease of use and flexibility make it a popular choice for designers needing to increase the I/O capability of their systems without redesigning the core processor architecture.
Key features include interrupt capability for input changes, low standby current, and compatibility with I²C and SMBus interfaces. The device operates over a wide voltage range, supporting both 3.3V and 5V systems, and can handle up to 400 kHz I²C bus speeds. The PCA9534ARGTR is housed in a compact TSSOP package, making it suitable for space-constrained applications.
Typical applications include consumer electronics, industrial automation, and any system requiring remote expansion of GPIO ports. Its ease of use and flexibility make it a popular choice for designers needing to increase the I/O capability of their systems without redesigning the core processor architecture.
Equivalent
The PCA9534ARGTR is an I2C-bus I/O expander from Texas Instruments. Some equivalent products include the NXP PCA9534, On Semiconductor's CAT9534, and Microchip's MCP23008. These alternatives offer similar functionality, such as I2C communication and GPIO expansion. However, always check the specific datasheets for compatibility regarding electrical characteristics and pin configurations.
Features
The PCA9534ARGTR is an I²C-bus I/O expander with 8-bit parallel input/output ports. Key features include:
1. I²C Interface: Supports standard, fast, and high-speed modes with data rates up to 400 kHz and 1 MHz, respectively.
2. 8-bit I/O Ports: Provides eight general-purpose I/O pins that can be configured as either inputs or outputs.
3. Interrupt Output: Features an interrupt output pin for monitoring changes in the input port state, useful for event-driven applications.
4. Voltage Range: Operates over a wide supply voltage range from 2.3 V to 5.5 V, making it suitable for various applications.
5. Low Standby Current: Consumes minimal power in standby mode, enhancing energy efficiency.
6. Addressability: Supports up to eight devices on the same bus by using three address pins, allowing address customization.
7. ESD Protection: Includes robust electrostatic discharge protection for enhanced reliability.
8. Temperature Range: Operates in a wide temperature range, typically from -40°C to +85°C, suitable for industrial applications.
These features make the PCA9534ARGTR suitable for applications requiring simple I/O expansion over I²C, such as microcontroller-based systems.
1. I²C Interface: Supports standard, fast, and high-speed modes with data rates up to 400 kHz and 1 MHz, respectively.
2. 8-bit I/O Ports: Provides eight general-purpose I/O pins that can be configured as either inputs or outputs.
3. Interrupt Output: Features an interrupt output pin for monitoring changes in the input port state, useful for event-driven applications.
4. Voltage Range: Operates over a wide supply voltage range from 2.3 V to 5.5 V, making it suitable for various applications.
5. Low Standby Current: Consumes minimal power in standby mode, enhancing energy efficiency.
6. Addressability: Supports up to eight devices on the same bus by using three address pins, allowing address customization.
7. ESD Protection: Includes robust electrostatic discharge protection for enhanced reliability.
8. Temperature Range: Operates in a wide temperature range, typically from -40°C to +85°C, suitable for industrial applications.
These features make the PCA9534ARGTR suitable for applications requiring simple I/O expansion over I²C, such as microcontroller-based systems.
Pinout
The PCA9534ARGTR is a 16-pin I²C-bus to 8-bit I/O port expander. It functions as a general-purpose I/O expander for applications needing more I/O pins. This device allows for the control of up to 8 I/O pins, which can be individually configured as either inputs or outputs. It supports bit-level configurability for each I/O pin, allowing for flexible applications. The PCA9534ARGTR is often used in systems where microcontroller I/O resources are limited or additional I/O lines are needed without increasing the microcontroller's footprint.
Manufacturer
The PCA9534ARGTR is manufactured by Texas Instruments (TI). Texas Instruments is a global semiconductor company that designs and manufactures a wide range of electronic components and integrated circuits. TI is known for its innovation in analog and embedded processing technologies, serving various industries, including automotive, industrial, personal electronics, and communications equipment. As a leader in the semiconductor industry, TI provides solutions that help engineers develop more efficient and reliable electronic systems.
Application
The PCA9534ARGTR is an I2C-bus controlled I/O port expander that finds application in a variety of areas. It's commonly used in scenarios where additional I/O ports are needed, such as in microcontroller-based systems. Applications include industrial automation, consumer electronics, telecom infrastructure, and data communication systems. It is utilized to extend the number of GPIOs without increasing the microcontroller's pin count, enabling efficient control and monitoring of multiple devices like LEDs, sensors, and relays. The expander is particularly useful in space-constrained environments due to its compact size and efficient communication protocol.
Package
The PCA9534ARGTR is a digital I/O expander with an I2C interface, manufactured by Texas Instruments. It comes in a TSSOP (Thin Shrink Small Outline Package) with 16 pins, which is compact and suitable for surface mounting on printed circuit boards.
