![PCA9554ADWRG4 Allicdata Electronics](https://files.allicdata.com/upload/common/default.jpg)
Allicdata Part #: | PCA9554ADWRG4-ND |
Manufacturer Part#: |
PCA9554ADWRG4 |
Price: | $ 0.39 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC I/O EXPANDER I2C 8B 16SOIC |
More Detail: | I/O Expander 8 I²C, SMBus 400kHz 16-SOIC |
DataSheet: | ![]() |
Quantity: | 1000 |
2000 +: | $ 0.35280 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Number of I/O: | 8 |
Interface: | I²C, SMBus |
Interrupt Output: | Yes |
Features: | POR |
Output Type: | Push-Pull |
Current - Output Source/Sink: | 10mA, 25mA |
Clock Frequency: | 400kHz |
Voltage - Supply: | 2.3 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 16-SOIC (0.295", 7.50mm Width) |
Supplier Device Package: | 16-SOIC |
Base Part Number: | PCA9554A |
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The PCA9554ADWRG4 is a high-performance, low-power I/O expander that encompasses an extensive range of interface and communication requirements. Its mission is to provide a simple and cost-effective solution for desktop, laptop and server systems, allowing seamless and convenient expansion of input and output capabilities. The PCA9554ADWRG4 is designed to bridge the gap between controller-driven I/O and system sub-systems, allowing for rapid expansion of I/O into multiple system buses.
The PCA9554ADWRG4 offerstwo distinct application fields. Firstly, it is used as a general purpose input/output (GPIO)expander. If an application requires the ability to read or write data to multiple devices, the PCA9554ADWRG4 can be used to act as an interconnect between those devices. Secondly, it is used as an interface between microcontrollers and system-level peripherals. The PCA9554ADWRG4 provides bus mastering capabilities, allowing an embedded system to access remote portions of memory and/or dedicated communication channels without resorting to hardware-level coding.
The PCA9554ADWRG4 includes features common to all I/O expanders. These features include 16 general-purpose I/O lines,write control,multi-function pin control, Digital Input Debounce, Programmable Output Driver, and Wake-Up-on-Interrupt. The 16 I/O lines can be configured for either logic outputs or logic inputs, with open-drain outputs for active-low logic inputs. Each GPIO provides two configureableand two fixed-function pins. The two fixed-function pins are interrupt and wakeup pins. Additionally, the PCA9554ADWRG4 has an interrupt-input-signal pin that is dedicated to the wake-up interrupt.
The PCA9554ADWRG4 implements a protocol-agnostic, resilient design that enables it to communicate using a variety of communication protocols. It supports I2C, SMBus, UART, SPI and Direct GPBus. The protocol-specific registers in the device allow a microcontroller to initiate data transmission when it recognizes a handshake signal on the bus.
To further simplify its usage, the PCA9554ADWRG4 includes drivers and libraries that ease the development of applications. The PCA9554ADWRG4 also implements a wide range of system-level commands, including clock divider, I/O pin type, pull-up resistors, address mapping, and I/O state. It also supports read and write transactions over the bus, allowing for rapid address look-up, access to register values, and configuration. The PCA9554ADWRG4 also supports integrated, configurable thresholds for events.
In sum, the PCA9554ADWRG4 is an effective and efficient I/O expander for a variety of desktop, laptop and server systems. Its wide range of features, combined with its vast communication protocol support, enable it to easily bridge the gap between controller-driven I/O and system sub-systems. This allows seamless expansion, while quickly transforming I/O into multiple system buses all at once. By utilizing advanced features, the PCA9554ADWRG4 can greatly simplify I/O operations while providing cost-effective solutions to any application.
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