Specifications
| Attribute | Value |
| Package | Tape & Reel (TR),Cut Tape (CT),Bulk |
| ProductStatus | Active |
| NumberofI/O | 8 |
| Interface | I²C |
| InterruptOutput | Yes |
| OutputType | Push-Pull |
| ClockFrequency | 400 kHz |
| Voltage-Supply | 1.65V ~ 5.5V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package/Case | 16-TSSOP (0.173, 4.40mm Width) |
Overview
Description
The TCA9534APWR is a low-voltage 8-bit I/O expander with an I2C interface, designed by Texas Instruments. It is used to increase the number of input/output pins available in microcontroller applications. Operating from a supply voltage of 1.65 V to 5.5 V, the TCA9534APWR is suitable for battery-operated devices and offers compatibility with both standard-mode and fast-mode I2C bus frequencies (up to 400 kHz).
The device features 8 bidirectional I/O ports that can be configured as either inputs or outputs. It includes a power-on reset circuit to ensure proper initialization and a hardware reset pin for manual system reset. The TCA9534APWR is packaged in a small-outline integrated circuit (SOIC), making it suitable for space-constrained applications.
Key features include interrupt output for input state changes, low standby current, and support for hot insertion. The device is commonly used in applications such as industrial control, portable electronics, and consumer electronics, where additional GPIOs are needed beyond what is provided by the main processor.
The device features 8 bidirectional I/O ports that can be configured as either inputs or outputs. It includes a power-on reset circuit to ensure proper initialization and a hardware reset pin for manual system reset. The TCA9534APWR is packaged in a small-outline integrated circuit (SOIC), making it suitable for space-constrained applications.
Key features include interrupt output for input state changes, low standby current, and support for hot insertion. The device is commonly used in applications such as industrial control, portable electronics, and consumer electronics, where additional GPIOs are needed beyond what is provided by the main processor.
Equivalent
The TCA9534APWR is a GPIO expander from Texas Instruments. Equivalent products include the PCA9534 from NXP and the MAX7310 from Maxim Integrated. These alternatives typically offer similar I2C interfacing, 8-bit port expanders, and compatible voltage ranges. Always check the specific datasheets to ensure compatibility with your design requirements.
Features
The TCA9534APWR is a low-voltage 8-bit I/O expander with an I²C interface, suitable for applications requiring additional I/O ports. Key features include:
1. I²C Interface: Supports both standard (100 kHz) and fast (400 kHz) I²C bus speeds, allowing easy integration with other I²C-compatible devices.
2. 8-bit I/O Port: Provides eight general-purpose I/O pins, which can be configured individually as either inputs or outputs.
3. Voltage Range: Operates with a supply voltage range of 1.65 V to 5.5 V, making it compatible with a wide range of systems.
4. Interrupt Output: Includes an interrupt output pin that alerts the microcontroller of input state changes, optimizing power efficiency by minimizing polling.
5. Low Standby Current: Features low current consumption in standby mode, improving overall energy efficiency.
6. Latch-Up Performance: Offers latch-up performance exceeding 100 mA per JESD 78, Class II standards.
7. ESD Protection: Provides robust electrostatic discharge protection.
8. Package: Available in a TSSOP-16 package, saving board space and reducing assembly costs.
These features make the TCA9534APWR ideal for expanding the I/O capabilities of microcontrollers in various consumer electronics and industrial applications.
1. I²C Interface: Supports both standard (100 kHz) and fast (400 kHz) I²C bus speeds, allowing easy integration with other I²C-compatible devices.
2. 8-bit I/O Port: Provides eight general-purpose I/O pins, which can be configured individually as either inputs or outputs.
3. Voltage Range: Operates with a supply voltage range of 1.65 V to 5.5 V, making it compatible with a wide range of systems.
4. Interrupt Output: Includes an interrupt output pin that alerts the microcontroller of input state changes, optimizing power efficiency by minimizing polling.
5. Low Standby Current: Features low current consumption in standby mode, improving overall energy efficiency.
6. Latch-Up Performance: Offers latch-up performance exceeding 100 mA per JESD 78, Class II standards.
7. ESD Protection: Provides robust electrostatic discharge protection.
8. Package: Available in a TSSOP-16 package, saving board space and reducing assembly costs.
These features make the TCA9534APWR ideal for expanding the I/O capabilities of microcontrollers in various consumer electronics and industrial applications.
Pinout
The TCA9534APWR is a remote 8-bit I/O expander for the I²C bus. It is typically packaged in a 16-pin TSSOP (PW) package. Here’s a brief overview of its pin configuration and function:
1. Pins:
- A0, A1, A2 (Pins 1, 2, 3): Address pins used to configure the I²C slave address.
- P0–P7 (Pins 4-11): General-purpose I/O pins.
- VCC (Pin 16): Power supply pin.
- GND (Pin 8): Ground pin.
- SCL (Pin 12): Serial Clock Line for I²C interface.
- SDA (Pin 13): Serial Data Line for I²C interface.
- INT (Pin 14): Interrupt output pin, active low.
- RESET (Pin 15): Active-low reset input pin.
2. Function:
- The device serves as an I²C-controlled I/O expander, allowing additional GPIO to be added to a microcontroller. It supports bidirectional data transfer via the I²C-bus and provides a simple solution for increasing the number of GPIO pins in a system.
This concise overview captures the essential pin count and function of the TCA9534APWR.
1. Pins:
- A0, A1, A2 (Pins 1, 2, 3): Address pins used to configure the I²C slave address.
- P0–P7 (Pins 4-11): General-purpose I/O pins.
- VCC (Pin 16): Power supply pin.
- GND (Pin 8): Ground pin.
- SCL (Pin 12): Serial Clock Line for I²C interface.
- SDA (Pin 13): Serial Data Line for I²C interface.
- INT (Pin 14): Interrupt output pin, active low.
- RESET (Pin 15): Active-low reset input pin.
2. Function:
- The device serves as an I²C-controlled I/O expander, allowing additional GPIO to be added to a microcontroller. It supports bidirectional data transfer via the I²C-bus and provides a simple solution for increasing the number of GPIO pins in a system.
This concise overview captures the essential pin count and function of the TCA9534APWR.
Manufacturer
The TCA9534APWR is manufactured by Texas Instruments. Texas Instruments (TI) is an American technology company that designs and manufactures semiconductors and various integrated circuits, which are sold to electronics designers and manufacturers globally. The company is one of the top semiconductor companies in the world, known for producing a wide range of products including analog chips, embedded processors, and other semiconductor solutions. Founded in 1930, Texas Instruments has played a significant role in the electronics industry and continues to focus on innovation in the semiconductor space.
Application
The TCA9534APWR is a general-purpose I/O expander for microcontrollers, commonly used in applications requiring additional I/O ports. It is suitable for consumer electronics, industrial automation, and embedded systems. Key application areas include:
1. Consumer Electronics: Enhancing input/output capabilities in devices like TVs and gaming consoles.
2. Industrial Control Systems: Expanding control options in PLCs and motor control systems.
3. Home Automation: Integration in smart home devices for added functionalities.
4. Computing and Networking: Extending I/O ports in routers and servers.
5. Medical Devices: Used for interfacing with sensors and controls.
6. Automotive Systems: Implemented in infotainment and control systems.
Its I2C interface, low power consumption, and small package make it versatile for constrained environments.
1. Consumer Electronics: Enhancing input/output capabilities in devices like TVs and gaming consoles.
2. Industrial Control Systems: Expanding control options in PLCs and motor control systems.
3. Home Automation: Integration in smart home devices for added functionalities.
4. Computing and Networking: Extending I/O ports in routers and servers.
5. Medical Devices: Used for interfacing with sensors and controls.
6. Automotive Systems: Implemented in infotainment and control systems.
Its I2C interface, low power consumption, and small package make it versatile for constrained environments.
Package
The TCA9534APWR is a digital I/O expander from Texas Instruments and comes in a TSSOP (Thin Shrink Small Outline Package) package type. Specifically, it features a 16-pin TSSOP package, which is compact and suitable for surface-mount technology (SMT) applications.
