What is the Additional Feature ?

Name: PCA9554APWG4
Brand: Texas Instruments
SKU: PCA9554APWG4
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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

Cart ( )

lmages are for reference only See Product Specifications

Texas Instruments PCA9554APWG4

Part No.:: PCA9554APWG4

Manufacturer:: Texas Instruments

Package:: 16-TSSOP (0.173, 4.40mm Width)

Datasheet:: PCA9554APWG4.pdf

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

In Stock:: 2215

Quantity:: Add To Cart

For more detailed including pricing and shipping

: Quick response, quick quotation

: Flash shipment, no worries after sales

: Original channel, guarantee of the authentic products

Please send RFQ , we will respond immediately.

Purchase and inquiry

PCA9554APWG4 Specifications

Package/Case:
16-TSSOP (0.173, 4.40mm Width)
Packaging:
Tube
Series:
-
ProductStatus:
Discontinued at Mosen
NumberofI/O:
8
Interface:
I²C, SMBus
InterruptOutput:
Yes
Features:
POR
OutputType:
Push-Pull
Current-OutputSource/Sink:
10mA, 25mA
ClockFrequency:
400 kHz
Voltage-Supply:
2.3V ~ 5.5V
OperatingTemperature:
-40°C ~ 85°C
MountingType:
Surface Mount

PCA9554APWG4 this integrated circuit is available in factory sealed anti static packs. at icwhale.com. Please read product page below detail information. including PCA9554APWG4 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 PCA9554APWG4 to optimize the supply chain (including cross references, life-cycle, parametric, counterfeit risk, obsolescence managements forecasts), please contact to our Tech-supports team.

Purchase in icwhale.com

There is no doubt that you may place an order without registering to icwhale.com.

We strongly suggest you sign in our shop before purchasing as you can track your order real-time tracking.

Means of Payment in icwhale.com

For your convenience, we support multiple payment methods in USD, including PayPal, Credit Card, wire transfer. and Alipay.

RFQ (Request for Quotations) in icwhale.com

It is recommended to acquire for quotations to get the latest prices and inventories about the parts.

Our sales will reply to your request by email within 24 hours.

Warm reminder

1. You'll receive an order information email in your email inbox. (Please remember to check the spam folder if you didn't hear from us).

2. Since inventories and prices may fluctuate to some extent, the sales manager is going to reconfirm the order and let you know if there are any updates.

Shipping & Handling

Shipping fee starts at $35, but some countries will exceed $35. For example (South Africa, Brazil, India, Pakistan, Israel, etc.)

The basic freight (for package ≤0.5kg or corresponding volume) depends on the time zone and countries.

Shipping Method

Currently, our products are shipped through DHL, FedEx, SF, UPS and China Post.

Order Tracking for International Orders

Once your order has been shipped, the tracking number will be sent to the email address registered to your account. This information can also be viewed when logged into your account in the "my account" page.

PCA9554APWG4 information

Views：

PCA9554APWG4 Typical application Circuitry

PCA9554APWG4

The PCA9554APWG4 is an 8-bit I²C and SMBus I/O expander with interrupt functionality, designed to increase the number of I/Os available to a microcontroller or processor, particularly in systems with limited available pins.

Features of PCA9554APWG4

1. I/O Expansion: The PCA9554APWG4 provides 8 I/O ports, which can be individually set as inputs or outputs.

2. Interrupt Output: Features an interrupt output that signals the microcontroller when input changes occur.

3. Communication Interface: Comes with an I²C-bus interface, ensuring straightforward integration with various microcontrollers or processors.

4. Input Polarity Inversion: Includes an input polarity inversion register to adapt the polarity of the input port data if necessary.

Application Scenario: Automated Testing Equipment

In automated testing equipment, the PCA9554APWG4 can be used to manage multiple indicators and switches, thereby expanding the I/O capability of the primary testing unit controller. Here's a detailed guide for setting up this in an automated testing equipment scenario:

Circuit Connection Details

1. Power Supply (VDD - Pin 16, VSS - Pin 8):

- Powering the Chip: Connect a stable power source to VDD (Pin 16) to power the PCA9554APWG4. Ground VSS (Pin 8) to establish a common reference point for the entire system.

2. I/O Ports (P0-P7 - Pins 1-7, Pin 9):

- Indicators and Switches Connection: Interface the testing equipment's indicators and switches with the I/O ports (P0-P7). Adjust these ports to align with the specific requirements of the testing equipment.

3. I²C Bus Interface (SDA - Pin 15, SCL - Pin 14):

- Communication with Microcontroller: Attach SDA (Pin 15) and SCL (Pin 14) to the I²C data and clock lines on the microcontroller. This allows for data exchange between the PCA9554APWG4 and the microcontroller.

4. Interrupt Handling (INT - Pin 13):

- Notification of Input Changes: Connect INT (Pin 13) to an interrupt pin on the microcontroller. This setup enables the PCA9554APWG4 to notify the microcontroller when any of the input states change.

5. Address Configuration (A0-A2 - Pins 10-12):

- I²C Address Setup: Set A0, A1, and A2 (Pins 10-12) for the I²C address. This is crucial when multiple devices are sharing the same I²C bus, to avoid address conflicts.

Design Considerations

When designing a circuit with the PCA9554APWG4, keep the following in mind:

1. I/O Pin Requirements: Verify that the number of I/O pins needed for the indicators and switches does not surpass the 8-bit capacity of the PCA9554APWG4.

2. I²C Bus Configuration: Properly configure the PCA9554APWG4 address, particularly critical when there are multiple expanders or devices on the same I²C bus.

3. Power Supply Integrity: Ensure that the power supply is stable and devoid of noise, which is essential for the reliable operation of the I/O expander.

4. Interrupt Strategy: Implement an efficient interrupt handling strategy to ensure that the microcontroller can respond swiftly to state changes signaled by the PCA9554APWG4.

By diligently addressing these considerations and exploiting the functionalities and pin configurations of the PCA9554APWG4, it's feasible to effectively incorporate this I/O expander into sophisticated applications like automated testing equipment. The PCA9554APWG4, with its I/O expansion capabilities and interrupt feature, stands out as a prime component for augmenting the I/O capacity of a central microcontroller in complex systems.

PCA9554APWG4 FAQ

1. How to order PCA9554APWG4 on icwhale.com?

Currently, icwhale.com only provide peer-to-peer order processing. While you submit the RFQ, our professional agent will contact you with the competitive prices in the global market, and our agent will prompt you to finish the order if you accept our offers.

2. How does icwhale.com guarantee that PCA9554APWG4 is from the original manufacturer or authorized agents?

We have a professional and experienced quality control team to strictly verify and test the PCA9554APWG4. All suppliers must pass our qualification reviews before they can publish their products including PCA9554APWG4 on icwhale.com; we pay more attention to the channels and quality of PCA9554APWG4 products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.

3. Are the PCA9554APWG4 price and inventory displayed accurate?

The price and inventory of PCA9554APWG4 fluctuates frequently and cannot be updated in time, it will be updated periodically within 24 hours. And, our quotation usually expires after 5 days.

4. What forms of payment are accepted?

Wire Transfer, PayPal, Alipay, Wechat, Credit Card, Western Union, MoneyGram, and Escrow are all acceptable.

Warm Tips: Some orders in certain payment forms may require handling fee.

5. How is the shipping arranged?

Customers can choose industry-leading freight companies, including DHL, UPS, FedEx, TNT, and Registered Mail. Shipping insurance is also available.

Once your order has been processed for shipment, our salesperson will send you an email advising you of the shipping status and tracking number.

Warm Tips: It may take up to 24 hours for the carriers to display tracking information. Usually, express delivery takes 3-5 days, and registered mail takes 25-60 days.

6. What is the process for return or replacement of PCA9554APWG4?

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 PCA9554APWG4 we delivered, we will accept the replacement or return of the PCA9554APWG4 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 PCA9554APWG4.

(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