
PCA9555PW
Manufacturer Part Number: PCA9555PW | Manufacturer / Brand: TI |
Part of Description: Interface - I/O Expanders Remote 16-Bit I2C & SMBus I/O Expander | Lead Free Status / RoHS Status: 16-bit Microcontrollers - MCU MCU 3/5V 56K Pb-free 64-QFP |
Ship From: HK/Shen Zhen | Shipment Way: DHL/Fedex/TNT/UPS |
Datasheets: |
Product parameters
Manufacturer | TI |
Details | RoHS |
Mounting Style | SMD/SMT |
Package / Case | TSSOP-24 |
Minimum Operating Temperature | – 40 C |
Maximum Operating Temperature | +85 C |
Packaging | Tube |
Moisture Sensitive | Yes |
Operating Supply Voltage | 2.3 V to 5.5 V |
Factory Pack Quantity | 60 |
Subcategory | Interface ICs |
Product Type | 8-bit Microcontrollers – MCU |
Type | I/O Expander |
Unit Weight | 0.003284 oz |
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The PCA9555PW is a high-performance, low-power 16-bit parallel input/output (GPIO) expander designed for I²C bus/SMBus applications. Manufactured by NXP Semiconductors, this device is intended to enhance the I²C bus I/O expander series by offering higher drive capability, 5V I/O tolerance, lower power current, independent I/O configuration, and a smaller package.
Key Features and Specifications:
- 16-Bit GPIO Expander: The PCA9555PW provides 16 GPIO channels, each of which can be individually configured as input or output.
- I²C and SMBus Interface: The device communicates with the host controller via the I²C or SMBus interface, supporting clock frequencies up to 400 kHz.
- Wide Operating Voltage Range: The PCA9555PW operates within a voltage range of 2.3V to 5.5V, making it suitable for a variety of applications.
- Interrupt Capability: The device includes an interrupt output, which can be used to notify the host controller when an input state changes.
- Configurable I/O Ports: The PCA9555PW allows for flexible configuration of its I/O ports, including input, output, and polarity inversion (active-high or active-low operation).
- High Drive Capability: With a maximum output current of 50 mA, the PCA9555PW can directly drive external devices such as LEDs.
- Small Package Size: The PCA9555PW is packaged in a 24-pin TSSOP (Thin Small Outline Package), which is ideal for space-constrained applications.
- CMOS Logic: The device uses CMOS logic, ensuring low power consumption and high reliability.
- Compatibility: The PCA9555PW is compatible with most microcontrollers and can tolerate 5V on its I/O ports.
Applications:
The PCA9555PW is ideal for a wide range of applications that require additional I/O ports, including:
- Industrial automation and control systems
- Home automation and security systems
- Embedded systems and microcontroller-based projects
- Telecommunications equipment
- Any other systems that require reliable and flexible I/O expansion.
In summary, the PCA9555PW is a versatile and reliable 16-bit GPIO expander that offers high performance, low power consumption, and flexible configuration options. Its small package size and wide operating voltage range make it suitable for a variety of applications, making it an excellent choice for engineers looking to expand their system’s I/O capabilities.