Overview
The PCA9554BPWJ is a low-voltage 8-bit General Purpose Input/Output (GPIO) expander produced by NXP USA Inc. This component is designed to provide additional I/O ports for microprocessors and microcontrollers, helping to minimize interconnections and enhance system functionality. It is compatible with I2C-bus and SMBus protocols, operating at a bus frequency of 400 kHz. The PCA9554BPWJ is available in a TSSOP-16 package and supports a wide voltage range of 1.65 V to 5.5 V, making it versatile for various applications.
Key Specifications
| Parameter | Description |
|---|---|
| Package | TSSOP-16 |
| Interface | I2C, SMBus |
| Bus Frequency | 400 kHz |
| Supply Voltage | 1.65 V to 5.5 V |
| Number of Bits | 8-bit |
| Operating Temperature | -40°C to 85°C |
| ESD Protection | 2000 V Human Body Model, 1000 V Charged-Device Model |
| Latch-up Performance | Exceeds 100 mA per JESD78, Class II |
Key Features
- Low-voltage operation with a wide supply voltage range of 1.65 V to 5.5 V.
- 8-bit GPIO expander with interrupt and weak pull-up resistors.
- Compatible with I2C-bus and SMBus protocols.
- Open-drain interrupt output to indicate input state changes.
- Register set includes Configuration, Input, Output, and Polarity Inversion registers.
- High ESD protection and latch-up performance.
- Available in TSSOP-16 and HVQFN16 packages.
Applications
- ACPI power switches.
- Sensors and push buttons.
- LED and fan control.
- Expansion of I/O ports for microprocessors and microcontrollers.
- Various industrial and consumer electronics requiring additional I/O capabilities.
Q & A
- What is the PCA9554BPWJ?
The PCA9554BPWJ is a low-voltage 8-bit General Purpose Input/Output (GPIO) expander produced by NXP USA Inc.
- What interface protocols does the PCA9554BPWJ support?
The PCA9554BPWJ supports I2C-bus and SMBus protocols.
- What is the operating voltage range of the PCA9554BPWJ?
The operating voltage range is from 1.65 V to 5.5 V.
- What is the package type of the PCA9554BPWJ?
The PCA9554BPWJ is available in a TSSOP-16 package.
- What is the bus frequency of the PCA9554BPWJ?
The bus frequency is 400 kHz.
- Does the PCA9554BPWJ have interrupt capabilities?
Yes, it has an open-drain interrupt output to indicate input state changes.
- What kind of ESD protection does the PCA9554BPWJ offer?
The PCA9554BPWJ offers ESD protection exceeding 2000 V Human Body Model and 1000 V Charged-Device Model.
- What are some common applications of the PCA9554BPWJ?
Common applications include ACPI power switches, sensors, push buttons, LED and fan control, and expansion of I/O ports for microprocessors and microcontrollers.
- What is the operating temperature range of the PCA9554BPWJ?
The operating temperature range is from -40°C to 85°C.
- Does the PCA9554BPWJ have any specific registers?
Yes, it includes Configuration, Input, Output, and Polarity Inversion registers.
