Overview
The PCA9554D, produced by NXP USA Inc., is a 16-pin CMOS device designed to provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications. This component is part of the PCA9554 and PCA9554A series, which are widely used in various electronic systems to expand the GPIO capabilities of a microcontroller or other I²C-bus/SMBus master device.
Key Specifications
| Parameter | Value |
|---|---|
| Type | General Purpose I/O (GPIO) Expander |
| Package / Case | 16-SOIC (0.295, 7.50mm Width) |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Voltage - Supply | 2.3V ~ 5.5V |
| Number of I/O | 8 |
| Interface | I²C, SMBus |
| Clock Frequency | 400 kHz |
| Interrupt Output | Yes |
| Output Type | Push-Pull |
| Current - Output Source/Sink | 10 mA / 25 mA |
| RoHS Status | ROHS3 Compliant |
Key Features
- Provides 8 bits of GPIO expansion for I²C-bus/SMBus applications.
- Supports clock frequencies up to 400 kHz.
- Includes an interrupt output feature.
- Operates over a wide voltage range of 2.3V to 5.5V.
- Push-pull output structure.
- Low power consumption and high reliability.
- Surface mount package (16-SOIC) for easy integration into designs.
Applications
- Common Mode Voltage Translation.
- Portable Instrumentation.
- Multiprotocol RFID Readers.
- General-purpose I/O expansion in microcontroller-based systems.
- Automotive and industrial control systems where additional I/O lines are needed.
Q & A
- What is the PCA9554D used for? The PCA9554D is used to provide 8 bits of General Purpose parallel Input/Output (GPIO) expansion for I²C-bus/SMBus applications.
- What is the package type of the PCA9554D? The PCA9554D comes in a 16-SOIC package.
- What is the operating temperature range of the PCA9554D? The operating temperature range is -40°C to 85°C.
- What are the supported voltage ranges for the PCA9554D? The PCA9554D operates over a voltage range of 2.3V to 5.5V.
- Does the PCA9554D support interrupt output? Yes, the PCA9554D includes an interrupt output feature.
- What is the maximum clock frequency supported by the PCA9554D? The maximum clock frequency is 400 kHz.
- Is the PCA9554D RoHS compliant? Yes, the PCA9554D is ROHS3 compliant.
- What are some common applications of the PCA9554D? Common applications include common mode voltage translation, portable instrumentation, and multiprotocol RFID readers.
- What is the output type of the PCA9554D? The output type is push-pull.
- What is the current sourcing/sinking capability of the PCA9554D? The PCA9554D can source/sink up to 10 mA / 25 mA.
