
Allicdata Part #: | PCF8575DBRE4-ND |
Manufacturer Part#: |
PCF8575DBRE4 |
Price: | $ 0.87 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | Texas Instruments |
Short Description: | IC I/O EXPANDER I2C 16B 24SSOP |
More Detail: | I/O Expander 16 I²C, SMBus 400kHz 24-SSOP |
DataSheet: | ![]() |
Quantity: | 1000 |
2000 +: | $ 0.78926 |
Series: | -- |
Packaging: | Tape & Reel (TR) |
Part Status: | Active |
Number of I/O: | 16 |
Interface: | I²C, SMBus |
Interrupt Output: | Yes |
Features: | POR |
Output Type: | Push-Pull |
Current - Output Source/Sink: | 1mA, 25mA |
Clock Frequency: | 400kHz |
Voltage - Supply: | 2.5 V ~ 5.5 V |
Operating Temperature: | -40°C ~ 85°C |
Mounting Type: | Surface Mount |
Package / Case: | 24-SSOP (0.209", 5.30mm Width) |
Supplier Device Package: | 24-SSOP |
Base Part Number: | PCF8575 |
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The PCF8575DBRE4 is an integrated circuit that belongs to the family of I/O expanders. It is a general-purpose 16-bit input/output (I/O) port expander that can be used to interface any system that is short on I/O ports. The IC offers a high level of integration and the user only needs to provide the basic input and output signals for it to operate.
The PCF8575DBRE4 has an Operating Voltage of 3.3V and an Operating Temperature of -40°C to 85°C. It provides up to sixteen digital input/output pins that can be configured either as general purpose input/output FETs or as a combination of input, output and open-drain logic. It also features an interrupt generator which can be used to generate an interrupt signal whenever one or more of the pins change state. The outputs of the I/O port are also protected against back-drive current, which prevents the output pins from being accidentally drawn to their opposite voltage potential.
The working principle of the PCF8575DBRE4 is quite simple. All sixteen pins of the I/O expander can be configured as either input or output. When configured as an output, the pins can be driven with either 3.3V or set as low impedance, depending on the logic state being applied to an internal logic control bus. When two of the I/O pins are configured as inputs, their state is monitored using the internal logic control bus. At any time, the level on the control bus is determined by the level of the I/O pins: either 3.3V (High) or 0V (Low).
The PCF8575DBRE4 is widely used in many applications such as industrial automation and robotics, medical devices, embedded systems, and automotive applications. Its small footprint and low power consumption make it an ideal choice for a variety of applications. Some of the features offered by the IC include bidirectional data transfer, 16-bit port configuration, addressable interrupts, and open collector outputs.
The PCF8575DBRE4 I/O Expander offers the best of both worlds: it is small and requires little power, yet it packs enough pins to interface with many systems. Its simple operation and high level of integration make it a good choice for many different applications.
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