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PCA9574BS,118
+NomenclatureIC XPND 400KHZ I2C SMBUS 16HVQFN
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FabricantNXP USA Inc.
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Pièce fabricant #PCA9574BS,118
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En stock2960
365 Garantie qualité 24h/24
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Spécifications
| Attribut | Valeur |
| PartStatus | Obsolete |
| BaseProductNumber | PCA9574 |
| DigiKeyProgrammable | Not Verified |
| NumberofI/O | 8 |
| Interface | I2C, SMBus |
| InterruptOutput | Yes |
| Features | POR |
| OutputType | Push-Pull |
| Current-OutputSource/Sink | 1mA, 3mA |
| ClockFrequency | 400 kHz |
| Voltage-Supply | 1.1V ~ 3.6V |
| OperatingTemperature | -40°C ~ 85°C |
| MountingType | Surface Mount |
| Package | 16-VFQFN Exposed Pad |
| SupplierDevicePackage | 16-HVQFN (3x3) |
| Packaging | Cut Tape (CT), Tape & Reel (TR) |
Présentation
Description
Key features include:
- 16 GPIO pins, configurable as input or output.
- I²C interface for easy communication with microcontrollers.
- Interrupt capability for efficient polling and event handling.
- Built-in pull-up resistors on input pins.
- Low power consumption, ideal for battery-operated devices.
The PCA9574BS,118 is particularly useful in scenarios where additional I/O capacity is required, enabling designers to expand functionality in compact designs without the need for multiple components.
Equivalent
Features
Key features include:
1. I2C Interface: Supports standard and fast modes (up to 400 kHz).
2. 16 GPIO Pins: Configurable as input or output.
3. Interrupt Functionality: Alerts the microcontroller when a change occurs on input pins.
4. Power Supply Range: Operates from 2.3V to 5.5V.
5. Low Power Consumption: Designed for battery-operated devices.
6. Multiple Addresses: Up to eight devices can be connected on a single I2C bus.
7. Internal Pull-Up Resistors: For GPIO input pins.
This makes the PCA9574BS,118 an effective solution for enhancing the GPIO capabilities of embedded systems in various applications, including consumer electronics and industrial controls.
Pinout
- Power and Ground (VDD, GND): Pins for powering the device and grounding.
- I2C Interface (SDA, SCL): Serial Data and Serial Clock lines for communication with the I2C bus.
- GPIO Pins (P0.0 to P0.7 and P1.0 to P1.7): These are general-purpose input/output pins that can be configured as either inputs or outputs.
- Interrupt Output (INT): An active-low open-drain pin that signals an interrupt to the host when a change occurs on the GPIO pins.
The PCA9574 allows for the expansion of GPIO capabilities in microcontroller-based systems, providing additional I/O through the I2C interface.
Manufacturer
Application
1. Microcontroller Expansion: Adding additional GPIO pins to microcontrollers with limited I/O.
2. Sensor Interfaces: Connecting multiple sensors in embedded systems where pin count is constrained.
3. LED Control: Managing multiple LEDs in lighting applications.
4. Button Matrix: Implementing keypad interfaces for user input.
5. Embedded Systems: Enhancing functionalities in devices like home automation, robotics, and consumer electronics.
6. Low-Power Applications: Utilized in battery-operated devices due to its low power consumption.
Overall, it enhances connectivity and flexibility in various electronic designs.