Allicdata Part #: | 568-4202-5-ND |
Manufacturer Part#: |
PCA9675DB,112 |
Price: | $ 0.00 |
Product Category: | Integrated Circuits (ICs) |
Manufacturer: | NXP USA Inc |
Short Description: | IC I/O EXPANDER I2C 16B 24SSOP |
More Detail: | I/O Expander 16 I²C 1MHz 24-SSOP |
DataSheet: | PCA9675DB,112 Datasheet/PDF |
Quantity: | 1000 |
1 +: | 0.00000 |
Series: | -- |
Packaging: | Tube |
Part Status: | Obsolete |
Number of I/O: | 16 |
Interface: | I²C |
Interrupt Output: | Yes |
Features: | POR |
Output Type: | Push-Pull |
Current - Output Source/Sink: | 100µA, 25mA |
Clock Frequency: | 1MHz |
Voltage - Supply: | 2.3 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: | PCA9675 |
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The PCA9675 may be referred to as an I/O Expander, which is an integrated circuit (IC) used to increase the number of available digital I/O lines on a single microcontroller or system. It accomplishes this by cascading an additional chip onto a parallel bus. The PCA9675 is an I/O Expander that utilizes the I2C communication interface, providing up to a 16-pin integrated circuit (16 IO) with a large amount of extra I/O pins.
The PCA9675DB,112 is an example of the PCA9675 I/O expander family. This chip consists of 8 parallel digital output channels and 8 parallel digital input channels, for a total of 16 IOs. Each output channel can be programmed individually with a logic low or high level, or set up in “open drain” mode to allow for communication with other I/O ports. The input channels can also be used to detect low or high logic levels for addition or subtraction of multiple I/Os.
The PCA9675DB,112 is generally used in applications requiring robust communication and I/O expansion, such as automotive, consumer, industrial, medical, and mobile electronics. This chip can also be used in consumer products like remote controls, camera systems, and other consumer products requiring multiple I/Os. Some of the other applications include level detection, button detection, data acquisition and control systems, such as switches and relays.
In terms of the working principles of the PCA9675DB,112, the chip works off of the I2C bus protocol. With this bus, the chip can transfer data between the chip and the host processor at a high speed – up to 500 kHz. The chip can also be configured to support up to 8 separate devices on the same bus. The chip uses eight output lines to control the eight data bits and two control lines to communicate with the host processor.
On the input side of the PCA9675DB,112 chip, each of the 8 input lines can be individually programmed to receive either digital logic high or low. This “open drain” capability enables the chip to act as a level detector, as it can sense the logical levels at each input line and then provide the necessary output. This open-drain function of the chip also allows multiple I/O pins to be connected together to act as a single I/O.
Some of the other features of the PCA9675DB,112 chip include an internal voltage regulator, an internal clock generator, internal pull-up resistors, an 8-bit control register, and an I/O operating temperature range of -40°C to +125°C. The chip also includes a dedicated interrupt line, allowing the host processor to be notified when a certain event has occurred within the chip.
The PCA9675DB,112 is an example of an I/O Expander, which utilizes the I2C communication protocol to increase the number of available digital I/O lines on a single microcontroller or system. This chip can be used in a wide range of applications including automotive, consumer, industrial, medical, and mobile electronics and it offers features such as an internal voltage regulator, internal clock generator, internal pull-up resistors, 8-bit control register, and dedicated interrupt lines.
The specific data is subject to PDF, and the above content is for reference
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