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NXP PCF8574AT
Remote 8-bit I/O expander for I2C‑bus with interrupt
Brands: NXP Semiconductor
Mfr.Part #: PCF8574AT
Datasheet: PCF8574AT Datasheet (PDF)
Package/Case: SOP-16
RoHS Status:
Stock Condition: 3711 pcs, New Original
Product Type: Integrated Circuits (ICs)
Warranty: 1 Year Ovaga Warranty - Find Out More
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*All prices are in USD
| Qty | Unit Price | Ext Price |
|---|---|---|
| 1 | $1.007 | $1.007 |
| 10 | $0.854 | $8.540 |
| 30 | $0.769 | $23.070 |
| 100 | $0.633 | $63.300 |
| 500 | $0.590 | $295.000 |
| 1000 | $0.572 | $572.000 |
In Stock:3711 PCS
PCF8574AT General Description
The PCF8574AT is an I2C (Inter-Integrated Circuit) I/O expander IC (Integrated Circuit) produced by NXP Semiconductors (formerly known as Philips Semiconductors). This chip is part of the PCF8574 series and is designed to expand the number of digital I/O (Input/Output) pins available to a microcontroller or microprocessor.
Features
I2C Communication: The PCF8574AT communicates with a microcontroller or host device using the I2C serial communication protocol, making it easy to interface with various microcontrollers.
8-Bit I/O Expansion: It provides 8 general-purpose I/O pins that can be used as either digital inputs or outputs. These pins can be configured individually.
Addressable: The PCF8574AT is addressable, allowing multiple devices to be connected to the same I2C bus with different addresses. This feature enables the connection of several PCF8574AT devices to expand the number of available I/O pins further.
Bit-Mapped I/O: Each of the 8 pins corresponds to a bit in a register. You can read or write individual bits or the entire 8-bit port simultaneously.
Voltage Compatibility: The PCF8574AT is typically designed to operate at 3.3V or 5V, making it compatible with a range of microcontroller voltage levels.
Pull-Up Resistors: The chip typically has internal pull-up resistors on its I2C bus lines (SCL and SDA). This simplifies the connection to the I2C bus.
Application
The chip typically has internal pull-up resistors on its I2C bus lines (SCL and SDA). This simplifies the connection to the I2C bus.
Applications: The PCF8574AT is often used to add extra digital I/O pins to microcontroller-based projects, such as interfacing with buttons, switches, LEDs, or other digital devices.
Control and Monitoring: It can be used for control and monitoring applications where additional I/O pins are required, like in industrial automation and embedded systems.
When using the PCF8574AT or similar I/O expander chips, it's essential to consult the datasheet for the specific model and manufacturer to understand its electrical characteristics, addressing scheme, and other operational details. These chips are commonly used in a wide range of embedded systems and electronics projects to extend the number of available digital I/O pins.
Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Pin Count | 16 | Package Category | Small Outline Packages |
| Released Date | Sep 24, 2022 |
Shipping
| Shipping Type | Ship Fee | Lead Time | |
|---|---|---|---|
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DHL | $20.00-$40.00 (0.50 KG) | 2-5 days |
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Fedex | $20.00-$40.00 (0.50 KG) | 2-5 days |
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UPS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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TNT | $20.00-$40.00 (0.50 KG) | 2-5 days |
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EMS | $20.00-$40.00 (0.50 KG) | 2-5 days |
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REGISTERED AIR MAIL | $20.00-$40.00 (0.50 KG) | 2-5 days |
Processing Time：Shipping fee depend on different zone and country.
Payment
| Terms of payment | Hand Fee | |
|---|---|---|
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Wire Transfer | charge US$30.00 banking fee. |
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Paypal | charge 4.0% service fee. |
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Credit Card | charge 3.5% service fee. |
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Western Union | charge US.00 banking fee. |
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Money Gram | charge US$0.00 banking fee. |
Guarantees
1.The electronic components you purchase include 365 Days Warranty, We guarantee product quality.
2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.
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After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.
Part points
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The PCF8574AT chip is an 8-bit i/o expander for i2c bus communication. it allows the user to extend the number of i/o pins available on a microcontroller or other i2c device. it can be used to control various devices such as leds, buttons, sensors, and relays. the chip operates on 3.3v or 5v power supply and has a programmable address, making it suitable for various applications.
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Equivalent
Some equivalent products of the PCF8574AT chip include pcf8574a, pcf8574af, and pcf8574ap. these chips are part of the pcf857x family and have similar features and functionality to the PCF8574AT. -
Features
The PCF8574AT is an i2c bus expander with 8-bit input/output, allowing communication between microcontrollers and other peripheral devices. it offers low standby current consumption, open drain interrupt output, cascading multiple devices, and is compatible with both 3.3v and 5v voltage levels. -
Pinout
The PCF8574AT is an i/o expander with a 16-pin count. it provides an additional 8 digital i/o ports that can be controlled via the i2c bus. the device allows for communication between a microcontroller and peripherals using only two wires (sda and scl). -
Manufacturer
The manufacturer of the PCF8574AT is texas instruments. texas instruments is an american semiconductor company that designs and manufactures a wide range of electronic components and systems. -
Application Field
The PCF8574AT is commonly used in various applications that require expanding the input/output (i/o) capability of microcontrollers. some application areas include industrial automation, home automation, robotics, automotive systems, and any other project that requires controlling multiple external devices. -
Package
The PCF8574AT chip has a package type of tssop, a form of 16 pins, and a size of 4.40mm x 5.00mm.
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