規格
| 屬性 | 價值 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Series | Agile |
| Part Status | Active |
| Number of I/O | 16 |
| Interface | I²C, SMBus |
| Interrupt Output | Yes |
| Features | POR |
| Output Type | Open Drain, Push-Pull |
| Current - Output Source / Sink | 10mA, 25mA |
| Clock Frequency | 400 kHz |
| Voltage - Supply | 1.65V ~ 5.5V |
| Operating Temperature | -40°C ~ 85°C |
| Mounting Type | Surface Mount |
概述
Description
The PCAL6416AHF,128 is a versatile I/O expander integrated circuit (IC) commonly used in electronic systems to increase the number of available input/output pins. Manufactured by NXP Semiconductors, this device interfaces with microcontrollers through an I2C-bus, allowing for seamless communication.
It features 16 general-purpose I/O pins that can be individually configured as either inputs or outputs, offering flexibility for various applications. The expander supports both standard (100 kHz) and fast (400 kHz) I2C-bus speeds, ensuring compatibility with a wide range of systems.
Key features include interrupt generation, which alerts the microcontroller to changes in input states, and a built-in reset function for improved reliability. The PCAL6416AHF,128 operates over a wide voltage range, making it suitable for battery-powered and low-voltage systems. It also includes a hardware pin for address configuration, allowing multiple devices on the same bus.
This IC is often utilized in applications requiring additional I/O, such as industrial control, consumer electronics, and embedded systems, due to its simplicity, flexibility, and compact design.
It features 16 general-purpose I/O pins that can be individually configured as either inputs or outputs, offering flexibility for various applications. The expander supports both standard (100 kHz) and fast (400 kHz) I2C-bus speeds, ensuring compatibility with a wide range of systems.
Key features include interrupt generation, which alerts the microcontroller to changes in input states, and a built-in reset function for improved reliability. The PCAL6416AHF,128 operates over a wide voltage range, making it suitable for battery-powered and low-voltage systems. It also includes a hardware pin for address configuration, allowing multiple devices on the same bus.
This IC is often utilized in applications requiring additional I/O, such as industrial control, consumer electronics, and embedded systems, due to its simplicity, flexibility, and compact design.
Equivalent
The PCAL6416AHF,128 is an I2C-bus controlled 16-bit I/O expander from NXP. Equivalent products include:
1. PCA9535 - Also from NXP; similar I2C-based I/O expander.
2. TCA9535 - From Texas Instruments; a direct alternative.
3. MCP23017 - From Microchip; provides similar I/O expansion capabilities.
4. SX1509 - From Semtech; offers additional features like keypad scanning.
These alternatives offer similar functionalities but may have different specifications or additional features.
1. PCA9535 - Also from NXP; similar I2C-based I/O expander.
2. TCA9535 - From Texas Instruments; a direct alternative.
3. MCP23017 - From Microchip; provides similar I/O expansion capabilities.
4. SX1509 - From Semtech; offers additional features like keypad scanning.
These alternatives offer similar functionalities but may have different specifications or additional features.
Features
The PCAL6416AHF,128 is an I²C-bus controlled 16-bit I/O expander. It is designed to provide additional input/output (I/O) capabilities for microcontrollers and microprocessors. Key features include:
1. 16 GPIO Pins: Provides 16 general-purpose I/O pins that can be configured as inputs or outputs.
2. I²C Interface: Utilizes an I²C interface for communication, supporting standard, fast, and high-speed modes.
3. Interrupt Output: Features an interrupt output pin that allows for real-time monitoring of input changes.
4. Configurable Pull-up/Pull-down Resistors: Each GPIO can be individually configured with pull-up or pull-down resistors.
5. Low Standby Current: Offers low standby current consumption, making it suitable for battery-powered applications.
6. Wide Voltage Range: Operates over a wide supply voltage range, typically from 1.65V to 5.5V.
7. Small Package: Available in compact packages such as TSSOP and HVQFN, ideal for space-constrained designs.
8. Enhanced Robustness: Features overvoltage-tolerant pins and supports hot insertion.
This makes the PCAL6416AHF,128 versatile for expanding I/O in various applications, including consumer electronics, industrial control, and more.
1. 16 GPIO Pins: Provides 16 general-purpose I/O pins that can be configured as inputs or outputs.
2. I²C Interface: Utilizes an I²C interface for communication, supporting standard, fast, and high-speed modes.
3. Interrupt Output: Features an interrupt output pin that allows for real-time monitoring of input changes.
4. Configurable Pull-up/Pull-down Resistors: Each GPIO can be individually configured with pull-up or pull-down resistors.
5. Low Standby Current: Offers low standby current consumption, making it suitable for battery-powered applications.
6. Wide Voltage Range: Operates over a wide supply voltage range, typically from 1.65V to 5.5V.
7. Small Package: Available in compact packages such as TSSOP and HVQFN, ideal for space-constrained designs.
8. Enhanced Robustness: Features overvoltage-tolerant pins and supports hot insertion.
This makes the PCAL6416AHF,128 versatile for expanding I/O in various applications, including consumer electronics, industrial control, and more.
Pinout
The PCAL6416AHF,128 is a 16-bit I/O expander produced by NXP Semiconductors. It comes in a 24-pin HVQFN (Heat sink Very-thin Quad Flatpack No-lead) package. The primary function of this device is to provide additional I/O ports via the I²C-bus/SMBus interface, making it useful for applications where additional GPIO is required but limited microcontroller pins are available.
The device includes features such as interrupt output, input/output configuration, and a programmable polarity inversion register. The pins are distributed across the package and are used for various functions including power, ground, I²C communication (SDA and SCL), I/O port (P0.0 to P0.7 and P1.0 to P1.7), interrupt output (INT), and reset (RESET). The device supports a wide voltage range and is typically used in applications such as portable electronics, industrial control, and consumer products where space is a constraint.
The device includes features such as interrupt output, input/output configuration, and a programmable polarity inversion register. The pins are distributed across the package and are used for various functions including power, ground, I²C communication (SDA and SCL), I/O port (P0.0 to P0.7 and P1.0 to P1.7), interrupt output (INT), and reset (RESET). The device supports a wide voltage range and is typically used in applications such as portable electronics, industrial control, and consumer products where space is a constraint.
Manufacturer
The manufacturer of the PCAL6416AHF,128 is NXP Semiconductors. NXP is a global semiconductor manufacturer headquartered in Eindhoven, Netherlands. The company specializes in the production of semiconductors for a wide range of applications, including automotive, industrial, mobile, and IoT sectors. NXP is known for its innovations in areas like secure connectivity, automotive safety, and smart city solutions, and it provides products and solutions that enable secure connections and infrastructure for a smarter world.
Application
The PCAL6416AHF,128 is a 16-bit I²C-bus I/O expander designed for applications requiring additional general-purpose I/O pins. It is commonly used in areas such as industrial automation, consumer electronics, and embedded systems. In these applications, it helps expand the number of I/O ports available for microcontrollers or processors, facilitating control and monitoring of various peripheral devices such as sensors, LEDs, and switches. Its low-voltage operation and interrupt function make it suitable for power-sensitive applications and enhance system responsiveness.
Package
The PCAL6416AHF,128 is a digital I/O expander with a QFN (Quad Flat No-leads) package type. Specifically, it is housed in a 24-pin QFN package, which is compact and suitable for applications requiring efficient space utilization.
