PCF8574TS/3

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PCF8574TS/3

Real Time Clock PCF8574TS/SSOP20//3/REEL 13 Q1/T1 *STANDARD MARK

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Vue d'ensemble

Description

The PCF8574TS/3 is an I2C-bus I/O port expander designed by NXP Semiconductors. It allows microcontrollers to expand their number of input and output pins without requiring additional GPIOs. The device features an 8-bit port, enabling control of up to 8 digital I/O pins.
Key features include:
1. I2C Interface: Operates over a two-wire I2C bus, allowing multiple devices to share the same communication lines.
2. Addressing: Supports configurable I2C addresses, enabling up to 8 devices on a single bus.
3. Interrupt Capability: Provides an interrupt output to signal when one of the input pins changes state, optimizing communication efficiency.
4. Voltage Range: Compatible with a wide supply voltage range (typically 2.5V to 6V).
5. Low Power Consumption: Ideal for battery-operated devices due to its low standby current.
The PCF8574TS/3 is commonly used in applications like LED control, switch inputs, and interfacing with various sensors, enhancing the functionality of microcontroller systems.

Features

The PCF8574TS/3 is an I²C (Inter-Integrated Circuit) I/O expander specifically designed for microcontroller applications. Key features include:
1. 8-Bit I/O Port: It provides 8 general-purpose I/O pins that can be configured as inputs or outputs.
2. I²C Interface: Supports I²C communication with a 7-bit address, allowing multiple devices on the same bus.
3. Interrupt Capability: Features an interrupt output pin (INT), enabling efficient monitoring of input state changes.
4. Open-Drain Outputs: The output pins are open-drain, allowing for wired-AND configurations and external pull-up resistors.
5. Wide Voltage Range: Operates from 2.5V to 6V, making it versatile for various applications.
6. Low Power Consumption: Designed for low power usage, ideal for battery-operated devices.
7. Bus-Driven Logic: All pins can be driven high or low via the I²C bus.
8. Software Configurable: Input/output functionality can be changed through software.
These features make the PCF8574TS/3 suitable for expanding I/O capabilities in embedded systems.

Package

The PCF8574TS/3 is packaged in a dual in-line package (DIP) format with 16 pins. This allows for easy integration onto breadboards and PCBs for I2C I/O expansion applications.

Pinout

The PCF8574TS/3 is an I²C I/O expander with a total of 8 pins dedicated to GPIO (General Purpose Input/Output) functions. It has a total of 16 pins when considering power, ground, and communication interfaces.
Pin Count and Functions:
- 1 to 8: GPIO pins (P0 to P7) - These can be configured as inputs or outputs.
- 9: VSS - Ground connection.
- 10: VDD - Power supply (typically +2.5V to +6V).
- 11: SDA - I²C data line for communication.
- 12: SCL - I²C clock line for communication.
- 13: A0 - Address selection pin (used to configure the I²C address).
- 14: A1 - Address selection pin (used to configure the I²C address).
- 15: A2 - Address selection pin (used to configure the I²C address).
- 16: NC - No connection.
The PCF8574TS/3 allows for easy expansion of GPIOs in I²C-compatible systems, enabling control of multiple inputs and outputs with minimal pin usage on the microcontroller.

Manufacturer

The PCF8574TS/3 is manufactured by NXP Semiconductors, a global semiconductor company based in the Netherlands. NXP specializes in high-performance mixed signal and standard product solutions for various applications, including automotive, industrial, and consumer electronics. The company is known for its innovation in secure connectivity solutions and is a key player in the Internet of Things (IoT) and mobile communication sectors. NXP's product portfolio includes microcontrollers, processors, and a wide range of analog and digital components, catering to diverse industries around the world.

Application

The PCF8574TS/3 is an I2C I/O expander used in various application areas, including industrial automation, home automation, and consumer electronics. It enables additional GPIO pins for microcontrollers, making it ideal for controlling LEDs, buttons, sensors, and other peripherals in projects like remote controls, smart home devices, and automation systems. Its ability to interface over I2C allows for efficient communication with minimal wiring, making it suitable for compact designs.

Equivalent

The PCF8574TS/3 is an I2C I/O expander, and its equivalents include the MCP23008, MCP23017, and the TCA9535. Other compatible options may include the PCA9555 and the PCF8574A. Always check the specific features, pin configurations, and voltage levels to ensure compatibility for your application.

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FedEx: Les frais d'expédition varient de 25 à 40 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

UPS: Les frais d'expédition vont de 25 à 45 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

TNT: Les frais d'expédition varient de 25 à 65 $ (0,5 kg), avec un délai de livraison estimé de 3 à 7 jours ouvrables.

EMS: Les frais d'expédition varient de 30 à 50 $ (0,5 kg), avec un délai de livraison estimé de 7 à 15 jours ouvrables.

Courrier aérien enregistré: Le coût d'expédition est de 2 à 4 $ (0,1 kg), avec un délai de livraison estimé de 5 à 20 jours ouvrables.

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