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PCF8574TS/3
+物料清單Real Time Clock PCF8574TS/SSOP20//3/REEL 13 Q1/T1 *STANDARD MARK
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製造商恩智浦電晶體
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製造商部分 #PCF8574TS/3
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有存貨23850
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概述
Description
The PCF8574TS/3 is an I2C-bus to 8-bit parallel port expander. It is part of the PCF8574 series, designed by NXP Semiconductors, which allows microcontrollers to communicate with multiple I/O devices over a two-wire I2C interface. The device has 8 quasi-bidirectional I/O ports, which can be used for input or output operations, and its versatility makes it ideal for expanding the number of I/O ports on a microcontroller.
Key features of the PCF8574TS/3 include a wide supply voltage range, low standby current consumption, and high noise immunity. It supports a maximum clock frequency of 100 kHz (standard-mode I2C) and operates at temperatures ranging from -40°C to +85°C, making it suitable for various industrial applications.
The PCF8574TS/3 is housed in a compact TSSOP package, making it suitable for space-constrained designs. It’s commonly used in applications such as remote I/O expansion, sensor interfacing, and control panel interfacing, providing a cost-effective solution for increasing I/O capacity without the need for additional microcontroller pins.
Key features of the PCF8574TS/3 include a wide supply voltage range, low standby current consumption, and high noise immunity. It supports a maximum clock frequency of 100 kHz (standard-mode I2C) and operates at temperatures ranging from -40°C to +85°C, making it suitable for various industrial applications.
The PCF8574TS/3 is housed in a compact TSSOP package, making it suitable for space-constrained designs. It’s commonly used in applications such as remote I/O expansion, sensor interfacing, and control panel interfacing, providing a cost-effective solution for increasing I/O capacity without the need for additional microcontroller pins.
Equivalent
The PCF8574TS/3 is a remote 8-bit I/O expander for I2C-bus. Equivalent products include the PCF8574 from NXP and the PCA8574. Other equivalents might be the MCP23008 from Microchip and the TCA9534 from Texas Instruments, which have similar functionalities, though there may be differences in specs or features. Always ensure compatibility with your specific application requirements when choosing a substitute.
Features
The PCF8574TS/3 is a remote 8-bit I/O expander for I²C-bus applications. Key features include:
1. I²C Interface: Compatible with I²C-bus and operates at speeds up to 100 kHz in standard mode and 400 kHz in fast mode.
2. 8-Bit I/O Ports: Provides 8 bidirectional I/O pins that can be used as inputs or outputs.
3. Interrupt Output: Includes an interrupt line (INT) which can be used to indicate changes in the input port data.
4. Addressing: Supports multiple device addresses allowing for the connection of up to 8 devices on the same bus.
5. Low Power Consumption: Designed for low power operation, making it suitable for battery-powered devices.
6. Wide Voltage Range: Operates over a wide voltage range from 2.5V to 6V, providing flexibility for various applications.
7. Latch-up Performance: Offers high latch-up performance, enhancing reliability.
8. ESD Protection: Features robust ESD protection for greater device durability.
These features make the PCF8574TS/3 suitable for expanding I/O in microcontroller-based projects, especially where limited I/O is a constraint.
1. I²C Interface: Compatible with I²C-bus and operates at speeds up to 100 kHz in standard mode and 400 kHz in fast mode.
2. 8-Bit I/O Ports: Provides 8 bidirectional I/O pins that can be used as inputs or outputs.
3. Interrupt Output: Includes an interrupt line (INT) which can be used to indicate changes in the input port data.
4. Addressing: Supports multiple device addresses allowing for the connection of up to 8 devices on the same bus.
5. Low Power Consumption: Designed for low power operation, making it suitable for battery-powered devices.
6. Wide Voltage Range: Operates over a wide voltage range from 2.5V to 6V, providing flexibility for various applications.
7. Latch-up Performance: Offers high latch-up performance, enhancing reliability.
8. ESD Protection: Features robust ESD protection for greater device durability.
These features make the PCF8574TS/3 suitable for expanding I/O in microcontroller-based projects, especially where limited I/O is a constraint.
Pinout
The PCF8574TS/3 is a remote 8-bit I/O expander for the I²C-bus. It operates with a low-power CMOS technology and provides a simple way to expand the I/O capabilities of microcontrollers or microprocessors via the I²C interface.
The PCF8574TS/3 comes in a TSSOP16 package, which has 16 pins. The pin functions are as follows:
1. P0-P7: These are the 8 I/O ports.
2. VSS: Ground reference.
3. VDD: Supply voltage.
4. SDA: Serial data line for I²C communication.
5. SCL: Serial clock line for I²C communication.
6. A0, A1, A2: Address pins used to set the I²C address of the device, allowing up to 8 devices on the same bus.
The device operates as an I²C slave and allows I/O port expansion by transmitting/receiving data to/from the microcontroller via the I²C bus.
The PCF8574TS/3 comes in a TSSOP16 package, which has 16 pins. The pin functions are as follows:
1. P0-P7: These are the 8 I/O ports.
2. VSS: Ground reference.
3. VDD: Supply voltage.
4. SDA: Serial data line for I²C communication.
5. SCL: Serial clock line for I²C communication.
6. A0, A1, A2: Address pins used to set the I²C address of the device, allowing up to 8 devices on the same bus.
The device operates as an I²C slave and allows I/O port expansion by transmitting/receiving data to/from the microcontroller via the I²C bus.
Manufacturer
The PCF8574TS/3 is manufactured by NXP Semiconductors. NXP is a global semiconductor company headquartered in Eindhoven, Netherlands. It specializes in designing and manufacturing a wide range of semiconductor products, including microcontrollers, communication processors, sensors, and integrated circuits for various applications such as automotive, industrial, mobile, and consumer electronics. NXP is particularly known for its expertise in providing solutions related to security, connectivity, and processing, often serving markets that require reliable and high-performance semiconductor solutions.
Application
The PCF8574TS/3 is a remote 8-bit I/O expander for I²C-bus, commonly used in applications where additional I/O ports are needed. Key application areas include:
1. Home Automation: Expanding I/O for smart home devices.
2. Consumer Electronics: Adding interface capabilities in TVs, audio systems, etc.
3. Industrial Control: Enhancing I/O capacity for PLCs and control systems.
4. Embedded Systems: Allowing microcontrollers to interact with more peripherals.
5. Medical Equipment: For interfacing additional sensors or indicators.
6. Automotive: Expanding I/O in vehicle control systems.
These expanders are valued for their simplicity and versatility in increasing the number of I/O pins in various electronic systems.
1. Home Automation: Expanding I/O for smart home devices.
2. Consumer Electronics: Adding interface capabilities in TVs, audio systems, etc.
3. Industrial Control: Enhancing I/O capacity for PLCs and control systems.
4. Embedded Systems: Allowing microcontrollers to interact with more peripherals.
5. Medical Equipment: For interfacing additional sensors or indicators.
6. Automotive: Expanding I/O in vehicle control systems.
These expanders are valued for their simplicity and versatility in increasing the number of I/O pins in various electronic systems.
Package
The PCF8574TS/3 is an I2C-bus to 8-bit parallel port expander, and it comes in a TSSOP (Thin Shrink Small Outline Package) package type.
