Overview
The PCA9673PW,118 is a remote 16-bit I/O expander produced by NXP USA Inc. It is designed to provide general-purpose remote I/O expansion for most microcontroller families via the two-line bidirectional I²C-bus. This component is part of the Fast-mode Plus (Fm+) family, offering enhanced I²C-bus speeds and capabilities compared to its predecessors like the PCF8575. The PCA9673PW,118 is particularly useful for applications requiring high-speed I²C communication and robust I/O expansion.
Key Specifications
| Specification | Value |
|---|---|
| I²C-bus Speed | 1 MHz (Fast-mode Plus) |
| Operating Voltage | 2.3 V to 5.5 V |
| I/O Pins | 16-bit quasi-bidirectional port |
| Output Drive Capability | 25 mA sink capability per pin, 400 mA total package sink capacity |
| Interrupt Output | Active LOW open-drain interrupt output |
| Slave Addresses | 16 programmable slave addresses using 2 address pins |
| Package Types | SO24, TSSOP24, HVQFN24, DHVQFN24 |
| Operating Temperature | -40°C to +85°C |
| ESD Protection | Exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101 |
Key Features
- Compliant with I²C-bus Fast and Standard modes
- SDA with 30 mA sink capability for 4000 pF buses
- 5.5 V tolerant I/Os
- Latched outputs with 25 mA sink capability for directly driving LEDs
- Low standby current
- Readable device ID (manufacturer, device type, and revision)
- Internal Power-On Reset (POR), hardware reset pin (RESET), and software reset sequence
Applications
- LED signs and displays
- Servers
- Industrial control
- Medical equipment
- PLCs (Programmable Logic Controllers)
- Cellular telephones
Q & A
- What is the PCA9673PW,118 used for? The PCA9673PW,118 is used for general-purpose remote I/O expansion for most microcontroller families via the I²C-bus.
- What is the maximum I²C-bus speed of the PCA9673PW,118? The maximum I²C-bus speed is 1 MHz (Fast-mode Plus).
- What is the operating voltage range of the PCA9673PW,118? The operating voltage range is 2.3 V to 5.5 V.
- How many I/O pins does the PCA9673PW,118 have? It has a 16-bit quasi-bidirectional port.
- What is the output drive capability of the PCA9673PW,118? Each pin has a 25 mA sink capability, with a total package sink capacity of 400 mA.
- Does the PCA9673PW,118 have an interrupt feature? Yes, it has an active LOW open-drain interrupt output.
- How many slave addresses are available for the PCA9673PW,118? There are 16 programmable slave addresses using 2 address pins.
- What are the package types available for the PCA9673PW,118? The available package types are SO24, TSSOP24, HVQFN24, and DHVQFN24.
- What is the operating temperature range of the PCA9673PW,118? The operating temperature range is -40°C to +85°C.
- What level of ESD protection does the PCA9673PW,118 offer? It exceeds 2000 V HBM per JESD22-A114 and 1000 V CDM per JESD22-C101.
