PCA9535D
16-Bit CMOS Parallel Input/Output Port in PDSO24 PackagePCA9535D
16-Bit CMOS Parallel Input/Output Port in PDSO24 Package
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PCA9535D 數據表
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詳細說明
One of the key features of the PCA9535D is its I2C-bus interface, which enables seamless communication with a host device. This two-wire interface allows for easy integration into existing I2C networks, making it a convenient choice for designers looking to expand their I/O capabilities. Additionally, the device's programmable I/O configuration gives users the freedom to tailor the functionality of each pin to suit their specific requirements
主要特徵
應用
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以下是所選零件的基本參數,涉及零件的特性及其所屬類別。
isSample | true | sampleItemType | ITEM_TYPE_SAMPLE |
leadTime | 16 | exclusiveItemType | ITEM_TYPE_SAMPLE |
minPackQty | 1000 | isExSample | true |
salesNum | PCA9535D,118 | pack_type | REEL |
pack_desc | Reel 13" Q1/T1 | status | Active |
數據表 PDF
數據表記錄了器件的特性、絕對最大額定值、應用等,這對於作為器件特定應用的整體指南大有裨益。
常見問題解答
What is PCA9535D?
The PCA9535D is an 16-bit I2C-bus I/O expander with interrupt output. It is designed by Texas Instruments and is ideal for applications requiring additional input/output pins controlled via I2C communication, such as industrial automation, LED lighting control, and consumer electronics.
How Does PCA9535D Work?
The PCA9535D functions as an I/O expander that provides 16 additional I/O pins controlled through the I2C bus. It allows for individual input/output pin configuration and can generate an interrupt signal based on predefined conditions. This expander enables greater flexibility and expansion of I/O capabilities in a system.
How Many Pins does PCA9535D have and What are the Functions of the Pinout Configuration?
The PCA9535D comes in a 24-pin TSSOP package. The pinout configuration includes:
- P0-P7: 8 general-purpose I/O pins.
- P8-P15: Another set of 8 general-purpose I/O pins.
- A0, A1, A2: Address selection pins for I2C communication.
- SCL, SDA: I2C clock and data lines for communication with the microcontroller.
- INT: Interrupt output pin.
- RESET: Reset pin for device initialization.
What are the Pros and Cons of PCA9535D?
Pros:
- Expandable I/O: Provides additional I/O pins for system expansion and flexibility.
- I2C Interface: Enables easy communication with a microcontroller using the I2C protocol.
- Interrupt Function: Supports interrupt generation based on configurable conditions.
- Low Power Consumption: Operates with low power consumption for energy-efficient designs.
- Configurable Pins: Allows individual pin configuration for input or output mode.
Cons:
- Complexity: Requires understanding of I2C protocol for proper integration and configuration.
- External Components: May need external pull-up resistors for I2C communication.
- Addressing: Address selection pins need to be set correctly for proper device communication.
Are There Any Equivalents/Alternatives to PCA9535D for Recommendation?
- The MCP23017 from Microchip is a similar I2C I/O expander with interrupt capabilities.
- Alternatives to the PCA9535D include the PCF8574 from NXP and the MAX7311 from Maxim Integrated.
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