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PCA9502BS
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規格
| Packaging | Tray |
| Brand | NXP Semiconductors |
| Product Type | I/O Expanders |
| Factory Pack Quantity:Factory Pack Quantity | 2450 |
| Subcategory | Interface ICs |
| Delivery Restrictions | Mouser does not sell this product in your region. |
| Part # Aliases | PCA9502BS,157 |
| Unit Weight | 1 g |
概述
Description
The PCA9502BS is a versatile I2C-bus-controlled I/O port with a low-voltage reset. It functions as an 8-bit I/O port with data registers that can be configured individually as inputs or outputs. Each output can be set as high, low, or open-drain. The PCA9502BS integrates a watchdog timer and a reset circuit to ensure system reliability by monitoring the supply voltage. If the voltage falls below a defined threshold, the device initiates a reset, making it suitable for microcontroller applications requiring automatic restart in the event of a voltage drop.
It supports fast-mode I2C-bus communication up to 400 kHz, compatible with both 3.3V and 5V systems. The PCA9502BS is often used in applications where a microcontroller needs additional I/O ports or in systems that require a reliable reset mechanism. Its small footprint and low power consumption make it suitable for portable electronics.
It supports fast-mode I2C-bus communication up to 400 kHz, compatible with both 3.3V and 5V systems. The PCA9502BS is often used in applications where a microcontroller needs additional I/O ports or in systems that require a reliable reset mechanism. Its small footprint and low power consumption make it suitable for portable electronics.
Features
The PCA9502BS is a versatile I²C-bus controlled device that integrates several key features suitable for a range of applications. It includes a 2-kbit EEPROM, which is organized in 256 × 8-bit pages, and can be used for storage of configuration settings or other data. Additionally, the device features 6 general-purpose I/O ports that can be used for input or output, offering flexibility in controlling and monitoring digital signals.
One of the key features is its ability to operate over a wide voltage range from 2.5V to 5.5V, making it compatible with various power supplies. The device also offers low power consumption, enhancing battery life in portable applications. Designed for robust I²C communications, it supports standard (100 kHz) and fast (400 kHz) I²C-bus modes, ensuring quick data transfers. The PCA9502BS can be easily integrated into existing systems due to its small package footprint and compatibility with industry-standard interfaces. It is ideal for applications in consumer electronics, industrial equipment, and other fields requiring reliable memory and I/O expansion capabilities.
One of the key features is its ability to operate over a wide voltage range from 2.5V to 5.5V, making it compatible with various power supplies. The device also offers low power consumption, enhancing battery life in portable applications. Designed for robust I²C communications, it supports standard (100 kHz) and fast (400 kHz) I²C-bus modes, ensuring quick data transfers. The PCA9502BS can be easily integrated into existing systems due to its small package footprint and compatibility with industry-standard interfaces. It is ideal for applications in consumer electronics, industrial equipment, and other fields requiring reliable memory and I/O expansion capabilities.
Package
The PCA9502BS is an I2C-bus controlled I/O port with a low-voltage 8-bit microcontroller. It is typically available in an SO (Small Outline) or TSSOP (Thin Shrink Small Outline Package) package type, suitable for surface mounting.
Pinout
The PCA9502BS is a general-purpose I/O (GPIO) expander that communicates via the I²C bus. It is housed in a 16-pin SSOP (Shrink Small Outline Package). The function of this device is to provide additional I/O ports for microcontrollers, facilitating the expansion of GPIO capacity in applications where I/O ports are limited. It includes features such as an interrupt output for input state changes and programmable I/O pins.
Manufacturer
The PCA9502BS is manufactured by NXP Semiconductors. NXP Semiconductors is a Dutch global semiconductor manufacturer headquartered in Eindhoven, Netherlands. The company specializes in the design and production of various semiconductor products, including microcontrollers, communication processors, and mixed-signal and standard products for automotive, identification, wireless infrastructure, lighting, industrial, mobile, consumer, and computing applications. NXP is known for its innovations in the automotive and security sectors, among others, and operates as a major player in the semiconductor industry, providing solutions that enable secure connections and infrastructure for a smarter world.
Application
The PCA9502BS is a versatile I/O expander with interrupt functions, commonly used in applications requiring remote I/O expansion via I2C interfaces. It's suitable for enhancing microcontroller I/O capabilities in embedded systems, consumer electronics, and industrial automation. Additionally, it supports applications in power management, LED control, button/switch monitoring, and other general-purpose I/O tasks where minimizing pin usage and optimizing interface connectivity are important.
Equivalent
The PCA9502BS is a I2C-bus controlled I/O port with 2-kbit EEPROM. Equivalent products include the NXP PCA9502 (various packages), Microchip's MCP23008, and Texas Instruments' PCF8574, though features and specifications may vary slightly. Always check the datasheets for compatibility with your specific application needs.
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