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Name: PCF8574AT/3,518
Brand: NXP USA Inc.
SKU: PCF8574AT/3,518
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. PCF8574AT/3,518

Part No.:: PCF8574AT/3,518

Manufacturer:: NXP USA Inc.

Package:: 16-SOIC (0.295, 7.50mm Width)

Datasheet:: PCF8574AT/3,518.pdf

Description:: IC I/O EXPANDER I2C 8B 16SOIC

In Stock:: 3706

Quantity:: Add To Cart

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PCF8574AT/3,518 Specifications

Package/Case:
16-SOIC (0.295, 7.50mm Width)
Packaging:
Tape & Reel (TR),Cut Tape (CT),Digi-Reel®,Bulk
Series:
-
ProductStatus:
Active
NumberofI/O:
8
Interface:
I²C
InterruptOutput:
Yes
Features:
POR
OutputType:
Push-Pull
Current-OutputSource/Sink:
300µA, 25mA
ClockFrequency:
100 kHz
Voltage-Supply:
2.5V ~ 6V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

PCF8574AT/3,518 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCF8574AT/3,518 price, data-sheet, in-stock availability, technical difficulties. Also. Quickly Enter the access of compare listing to find out replaceable electronic parts. If you want to retrieve comprehensive data for PCF8574AT/3,518 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

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PCF8574AT/3,518 information

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PCF8574AT/3,518 Typical application Circuitry

PCF8574AT 3,518

The PCF8574AT/3,518 is an 8-bit I/O expander for the I²C-bus, developed by NXP Semiconductors. This chip is designed to provide additional I/O ports to a microcontroller or processor, especially useful in systems where I/O port availability is limited.

Application Scenarios

The PCF8574AT/3,518 finds widespread use in applications such as interfacing with LCD displays, extending I/O capabilities in embedded systems, developing keypad interfaces, and in home automation and industrial control systems.

Parameter Features

Key features of the PCF8574AT/3,518 include:

- 8-bit remote I/O expansion for I²C-bus interface.

- Low standby current.

- Interrupt output.

- A maximum of eight devices can be accommodated on the same bus by utilizing three hardware address pins for addressing purposes.

Application Scenario - LCD Display Interface in Embedded Systems: Circuit Connection Method

1. I²C Bus Connection:Connect the SDA (Serial Data) and SCL (Serial Clock) pins of the PCF8574AT/3,518 to the corresponding I²C bus lines on the embedded system's microcontroller.

2. Power Supply: Link the VDD pin of the PCF8574AT/3,518 to a +5V supply and the VSS pin to the ground. To ensure optimal operation, make sure the power supply is steady.

3. I/O Port Utilization: Connect external devices such as LEDs or buttons to the I/O pins (P0 to P7) of the PCF8574AT/3,518. Configure each pin based on the requirement of the connected device, either as input or output.

4. Address Pin Configuration: To specify the device address on the I C bus, set the A0, A1, and A2 address pins. This allows the use of multiple expanders on the same bus without address conflicts.

Circuit Design Considerations

- I²C Bus Integrity: Ensure the I²C bus has appropriate pull-up resistors and is shielded from electrical noise for reliable communication.

- Power source Stability: The steady operation of the I/O expander depends on a reliable power source.

- Protective Measures for I/O Pins: Implement protective elements like resistors or diodes if the I/O pins interface with external environments.

- Addressing Scheme: Carefully configure the address pins to avoid conflicts when multiple devices are connected to the same I²C bus.

In an embedded system interfacing with an LCD display, the PCF8574AT/3,518 effectively expands the microcontroller's I/O capabilities, allowing for more complex and interactive interfaces without requiring additional microcontroller resources.

PCF8574AT/3,518 FAQ

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6. What is the process for return or replacement of PCF8574AT/3,518?

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 PCF8574AT/3,518 we delivered, we will accept the replacement or return of the PCF8574AT/3,518 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 PCF8574AT/3,518.

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

Two processes to return the products:

(1)Inform us within 90 days

(2)Obtain Requesting Return Authorizations