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PCA9522D,118
Product Overview
Category
The PCA9522D,118 belongs to the category of I2C-bus controlled 16-bit I/O expander for open-drain outputs.
Use
It is used to provide general-purpose remote I/O expansion for most microcontroller families via the I2C-bus interface.
Characteristics
- Package: TSSOP24
- Essence: I2C-bus controlled 16-bit I/O expander
- Packaging/Quantity: Tape and Reel (3,000 units per reel)
Specifications
The PCA9522D,118 features: - 5 V tolerant I/Os - Operating voltage range of 2.3 V to 5.5 V - 400 kHz Fast-mode I2C-bus - 16-bit remote I/O pins that default to inputs at power-up - Active LOW interrupt output - Polarity inversion register to configure the polarity of the input port data
Detailed Pin Configuration
The detailed pin configuration of PCA9522D,118 is as follows:
| Pin Number | Name | Description | |------------|------|-------------| | 1 | SCL | Serial Clock Line | | 2 | SDA | Serial Data Line | | 3 | A0 | Address input | | ... | ... | ... |
Functional Features
The functional features of PCA9522D,118 include: - I2C-bus interface - 16-bit remote I/O expander - Interrupt output with configurable polarity - Input port polarity inversion
Advantages and Disadvantages
Advantages
- Simplifies I/O expansion of microcontrollers
- 5 V tolerant I/Os
- Configurable interrupt output
Disadvantages
- Limited to 16-bit I/O expansion
- Requires I2C-bus interface support on the microcontroller
Working Principles
The PCA9522D,118 operates by communicating with the microcontroller through the I2C-bus interface. It provides 16-bit remote I/O expansion and allows the microcontroller to control and monitor external devices.
Detailed Application Field Plans
The PCA9522D,118 finds applications in various fields such as: - Industrial automation - Consumer electronics - Automotive systems - Internet of Things (IoT) devices
Detailed and Complete Alternative Models
Some alternative models to PCA9522D,118 include: - PCA9554D,112 - MCP23017-E/SP - MAX7311AUG+
In conclusion, the PCA9522D,118 is a versatile I2C-bus controlled 16-bit I/O expander suitable for a wide range of applications, offering flexibility and ease of integration for microcontroller-based systems.
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Wymień 10 typowych pytań i odpowiedzi związanych z zastosowaniem PCA9522D,118 w rozwiązaniach technicznych
Sure, here are 10 common questions and answers related to the application of PCA9522D,118 in technical solutions:
What is PCA9522D,118?
- PCA9522D,118 is an I2C-bus controlled 16-channel constant current LED driver for automotive applications.
What is the maximum output current per channel of PCA9522D,118?
- The maximum output current per channel of PCA9522D,118 is 40 mA.
Can PCA9522D,118 be used for dimming LEDs?
- Yes, PCA9522D,118 can be used for dimming LEDs by controlling the current through each channel.
What is the input voltage range for PCA9522D,118?
- The input voltage range for PCA9522D,118 is 3 V to 5.5 V.
How many devices can be connected to the I2C bus when using PCA9522D,118?
- Up to 62 PCA9522D,118 devices can be connected to the I2C bus.
Is PCA9522D,118 suitable for automotive lighting applications?
- Yes, PCA9522D,118 is designed for automotive applications and is suitable for automotive lighting solutions.
Does PCA9522D,118 have thermal shutdown protection?
- Yes, PCA9522D,118 has thermal shutdown protection to prevent damage from excessive heat.
What is the operating temperature range of PCA9522D,118?
- The operating temperature range of PCA9522D,118 is -40°C to 125°C.
Can PCA9522D,118 be cascaded to drive more than 16 channels?
- Yes, multiple PCA9522D,118 devices can be cascaded to drive more than 16 channels.
What are the typical applications of PCA9522D,118?
- Typical applications of PCA9522D,118 include interior and exterior automotive lighting, LED matrix displays, and general LED lighting solutions.