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Name: PCF8575TS/1,112
Brand: NXP USA Inc.
SKU: PCF8575TS/1,112
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

Any Feature, including a modified Existing Feature, that is not an Existing Feature.

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NXP USA Inc. PCF8575TS/1,112

Part No.:: PCF8575TS/1,112

Manufacturer:: NXP USA Inc.

Package:: 24-SSOP (0.209, 5.30mm Width)

Datasheet:: PCF8575TS/1,112.pdf

Description:: IC I/O EXPANDER I2C 16B 24SSOP

In Stock:: 2735

Quantity:: Add To Cart

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PCF8575TS/1,112 Specifications

Package/Case:
24-SSOP (0.209, 5.30mm Width)
Packaging:
Bulk,Tube
Series:
-
ProductStatus:
Active
NumberofI/O:
16
Interface:
I²C
InterruptOutput:
Yes
Features:
POR
OutputType:
Push-Pull
Current-OutputSource/Sink:
10mA, 25mA
ClockFrequency:
400 kHz
Voltage-Supply:
2.5V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

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PCF8575TS/1,112 information

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PCF8575TS/1,112 Typical application Circuitry

PCF8575TS 1,112

A remote 16-bit I/O expander with interrupt output for the I²C-bus is the PCF8575TS/1,112. Through the two-wire bidirectional I²C-bus, it offers general-purpose remote I/O expansion. It is mainly utilized in applications where increasing the number of I/Os accessible to a microcontroller or processor is necessary.

Features of PCF8575TS/1,112

1. I/O Expansion: The PCF8575TS/1,112 offers 16-bit I/O expansion, allowing for significant increase in available I/O pins for a microcontroller.

2. Interrupt Output: It features an interrupt output, enabling the device to flag a microcontroller when input changes occur.

3. Communication Interface: Equipped with an I²C-bus interface, it ensures easy communication with most microcontrollers or processors.

4. Voltage Range: Operates across a wide voltage range, suitable for various system requirements.

Application Scenario: Home Automation System

In a home automation system, the PCF8575TS/1,112 can be used to manage multiple sensors and actuators, expanding the I/O capability of the central microcontroller. An extensive connection tutorial for this application may be found below:

Circuit Connection Details

1. Power Supply (VDD - Pin 24, VSS - Pin 12):

- Device Powering: Connect a stable power source to VDD (Pin 24) to power the PCF8575TS/1,112. Ground VSS (Pin 12) to complete the power circuit.

2. I/O Ports (P0-P15 - Pins 1-10, 13-23):

- Sensor and Actuator Wiring: Connect various sensors and actuators to the I/O ports (P0-P15). The needs of the home automation system and the particular gadgets being used determine configuration.

3. I²C Bus Communication (SDA - Pin 22, SCL - Pin 23):

- Data Exchange: Link SDA (Pin 22) and SCL (Pin 23) to the I²C data and clock lines of the controlling microcontroller. This allows for communication between the PCF8575TS/1,112 and the microcontroller.

4. Interrupt Configuration (INT - Pin 11):

- Interrupt Handling: Connect INT (Pin 11) to an interrupt pin on the microcontroller. This enables the PCF8575TS/1,112 to alert the microcontroller when any of the input pins change state.

5. Address Pins (A0-A2 - Pins 20-18):

- I²C Address Setting: Configure A0, A1, and A2 (Pins 18-20) for the I²C address. This is crucial when multiple devices are on the same I²C bus to avoid address conflicts.

Design Considerations

When designing a circuit with the PCF8575TS/1,112, consider the following:

1. I/O Pin Requirements: Ensure the number of I/O pins needed for the sensors and actuators in the system does not exceed the 16-bit limit of the PCF8575TS/1,112.

2. I²C Bus Addressing: Properly address the PCF8575TS/1,112, especially when multiple I/O expanders or devices are present on the same I²C bus.

3. Power Supply Stability: Provide a stable and noise-free power supply to ensure consistent performance of the I/O expander.

4. Interrupt Management: Effectively manage the interrupt signal to ensure the microcontroller can promptly respond to changes in the input states.

By attentively addressing these points and leveraging the capabilities and pin configurations of the PCF8575TS/1,112, one can efficiently incorporate this I/O expander into complex applications like a home automation system. The PCF8575TS/1,112, with its extensive I/O expansion and interrupt feature, is an exemplary solution for enhancing the I/O capabilities of a central microcontroller in such systems.

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6. What is the process for return or replacement of PCF8575TS/1,112?

All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the PCF8575TS/1,112 we delivered, we will accept the replacement or return of the PCF8575TS/1,112 only when all of the below conditions are fulfilled:

(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.

(2)We are informed of the defect described above within 90 days after the delivery of PCF8575TS/1,112.

(3)The PartNo is unused and only in the original unpacked packaging.

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(1)Inform us within 90 days

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