Name: PCA9544APW
Brand: Rochester Electronics
SKU: DS-5727542
Price: 0.3816 USD
Availability: InStock
Rating: 4.8 (3 reviews)

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Rochester Electronics PCA9544APW

IC INTERFACE SPECIALIZED 20TSSOP

Manufacturer # :PCA9544APW

Manufacturer :Rochester Electronics

Dasenic # :PCA9544APW-DS

Datasheet :

PCA9544APW Datasheet

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Description : IC INTERFACE SPECIALIZED 20TSSOP

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Quantity	Unit Price	Total
120+	$ 0.3816	$ 45.79
290+	$ 0.3132	$ 90.83
450+	$ 0.3033	$ 136.49
615+	$ 0.2943	$ 180.99
795+	$ 0.2844	$ 226.1

In Stock: 37765

MOQ :1 PCS

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Shipping Origin :Shenzhen or Hong Kong Warehouse

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Unit Price :$ 0.3816

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PCA9544APW information

Rochester Electronics PCA9544APW technical specifications, attributes, parameters.
Category:Integrated Circuits (ICs)/Interface - Specialized
Product Status:Obsolete
Mounting Type:Surface Mount
Package / Case:20-TSSOP (0.173", 4.40mm Width)
Interface:I²C, SMBus
Supplier Device Package:20-TSSOP
Voltage - Supply:2.3V ~ 5.5V
Applications:Translating Switch
US ECCN:EAR99
HTS US:8542.39.0001
EU RoHS Status:RoHS Compliant
REACH Status:REACH is not affected
China RoHS Status:Green Symbol: Green and environmentally friendly product

Download datasheets and manufacturer documentation for Rochester Electronics PCA9544APW
Datasheet:
PCA9544APW,

Rochester Electronics PCA9544APW Environmental and export classification status description
The PCA9544APW is an I2C bus multiplexer that enables multiple I2C devices to communicate on a single bus. You can select which devices to connect to the I2C bus using the multiplexer, allowing for the expansion of I2C capacity in a circuit. It features a selection mechanism that allows multiple I2C channels to be selected one at a time. Functions 1. I2C Multiplexing: It allows multiple I2C devices to communicate without address conflicts by enabling selection of one of several I2C channels. 2. Channel Selection: The device can select one of the four downstream channels (Ch0 to Ch3) via I2C commands. 3. Bidirectional Communication: Supports communication in both directions, which is essential for master and slave devices on the I2C bus. 4. Low Power Consumption: Operates at a low voltage and low power, making it energy-efficient for applications. Applications - Sensor Networks: Used in systems with multiple sensors that require connection to a microcontroller. - LCD Controllers: Enables multiple displays to communicate with the same controller. - Battery Management Systems: Facilitates connections to different sensing circuits in battery management. - Communications Equipment: Suitable for multiplexing multiple I2C lines in telecommunication devices. Alternative Parts 1. PCA9543A: Another I2C multiplexer with similar functionalities but with fewer channels. 2. TCA9548A: An I2C multiplexer that provides more channels (up to 8) compared to PCA9544APW. 3. PCA9546A: A device that acts as a 4-channel I2C multiplexer with interrupt capabilities. 4. AP3216-1: An alternative chip but with different functionalities and specifications for specific applications. Embedded Modules The PCA9544APW can be found in various embedded system modules and development boards. These modules typically include: - Arduino Shields: These may use PCA9544APW for handling several I2C sensors. - Raspberry Pi Expansion Boards: Modules that can extend I2C interfacing capabilities with I2C multiplexing. - Sensor Hubs: Embedded systems that integrate multiple sensors can utilize this multiplexer to manage data flow. Related Q&A 1. Q: What is the primary function of the PCA9544APW? A: The PCA9544APW is primarily used to multiplex I2C buses, allowing multiple I2C devices to connect without address conflicts. 2. Q: How many channels does the PCA9544APW support? A: The PCA9544APW supports four downstream I2C channels that can be selected individually. 3. Q: In what applications is the PCA9544APW commonly used? A: It is commonly used in sensor networks, LCD controllers, battery management systems, and various communications devices. 4. Q: What are the power characteristics of the PCA9544APW? A: The PCA9544APW operates with low power consumption, making it energy-efficient for embedded applications. 5. Q: Can you name an alternative part to the PCA9544APW? A: Yes, the TCA9548A is an alternative that provides more I2C channels (up to 8) compared to the PCA9544APW.

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PCA9544APW provided by Rochester Electronics

As an original manufacturer stocking distributor, Rochester Electronics has over 15 billion devices in stock encompassing more than 200,000-part numbers, providing the world’s most extensive range of end-of-life (EOL) semiconductors and broadest range of active semiconductors. As a licensed semiconductor manufacturer, Rochester has manufactured over 20,000 device types. With over 12 billion die in stock, Rochester has the capability to manufacture over 70,000 device types. Rochester oﬀers a full range of manufacturing services including Design, Wafer Processing, Assembly, Test, Reliability, and IP Archiving providing single solutions through to full turnkey manufacturing, enabling faster time-to-market.