Overview
The PCA9554ADB,118 is an 8-bit I²C-bus and SMBus I/O port expander designed by NXP USA Inc. This CMOS device provides 8 bits of general purpose parallel input/output (GPIO) expansion, making it ideal for applications requiring additional I/O ports. It operates within a supply voltage range of 2.3V to 5.5V and supports a clock frequency of up to 400 kHz. The device is packaged in a 16-pin SSOP (Shrink Small Outline Package) and is suitable for a wide range of industrial and consumer electronics applications.
Key Specifications
| Specification | Value |
|---|---|
| Package Type | SSOP16 (0.209, 5.30mm Width) |
| Number of I/O Pins | 8 |
| Clock Frequency | 0Hz to 400 kHz |
| Supply Voltage Range | 2.3V to 5.5V |
| Ambient Temperature Range | -40°C to +85°C |
| Standby Current | 104µA typ |
| Power-on Reset Voltage | 1.7V typ |
| I/O Tolerance | 5V tolerant I/Os |
| Interrupt Output | Active LOW interrupt output |
| ESD Protection | Exceeds 2000V HBM per JESD22-A114 and 1000V CDM per JESD22-C101 |
Key Features
- Provides 8 bits of general purpose parallel input/output (GPIO) expansion for I²C-bus/SMBus applications.
- 5V tolerant I/Os and polarity inversion register.
- Low standby current and noise filter on SCL/SDA inputs.
- No glitch on power-up and internal power-on reset.
- Active LOW interrupt output for state change notifications.
- Supports up to eight I2C devices on the same bus.
- ESD protection exceeds 2000V HBM per JESD22-A114 and 1000V CDM per JESD22-C101.
Applications
The PCA9554ADB,118 is utilized in various industrial and consumer electronics applications where additional GPIO is required. Typical applications include ACPI power switches, sensors, push buttons, LEDs, and fans. It enhances system control and monitoring capabilities by providing additional I/O ports for these devices.
Q & A
- What is the PCA9554ADB,118? The PCA9554ADB,118 is an 8-bit I²C-bus and SMBus I/O port expander designed by NXP USA Inc.
- What is the package type of the PCA9554ADB,118? The device is packaged in a 16-pin SSOP (Shrink Small Outline Package).
- What is the clock frequency range of the PCA9554ADB,118? The clock frequency range is from 0Hz to 400 kHz.
- What is the supply voltage range of the PCA9554ADB,118? The supply voltage range is from 2.3V to 5.5V.
- What is the ambient temperature range of the PCA9554ADB,118? The ambient temperature range is from -40°C to +85°C.
- Does the PCA9554ADB,118 have ESD protection? Yes, it exceeds 2000V HBM per JESD22-A114 and 1000V CDM per JESD22-C101.
- What are the typical applications of the PCA9554ADB,118? Typical applications include ACPI power switches, sensors, push buttons, LEDs, and fans.
- Does the PCA9554ADB,118 support multiple I2C devices on the same bus? Yes, it supports up to eight I2C devices on the same bus.
- What is the standby current of the PCA9554ADB,118? The standby current is 104µA typ.
- Does the PCA9554ADB,118 have an internal power-on reset? Yes, it has an internal power-on reset.
