Overview
The PCF8575TS/1,118, produced by NXP USA Inc., is a remote 16-bit I/O expander designed for use with the I²C-bus. This device is particularly useful for expanding the I/O capabilities of microcontrollers. It features a 16-bit quasi-bidirectional port and an I²C-bus interface, allowing for efficient communication between the expander and the microcontroller. The PCF8575TS is housed in a 24-lead SSOP (Shrink Small Outline Package) and is known for its low current consumption and high current drive capability, making it suitable for a variety of applications.
Key Specifications
| Parameter | Description | Value |
|---|---|---|
| Package Type | SSOP24 | 24-lead Shrink Small Outline Package |
| Number of I/O Pins | 16-bit quasi-bidirectional port | 16 |
| I²C-Bus Frequency | SCL clock frequency | Up to 400 kHz |
| Supply Voltage | VDD | Typically 2.5V to 6.0V |
| Current Consumption | Low current consumption | Typically 80 μA (static) |
| Interrupt Line | INT line for interrupt logic | Yes |
| Address Inputs | A0, A1, A2 for address selection | 3 |
| Environmental Compliance | PbFree, EU RoHS, REACH SVHC compliant | Yes |
Key Features
- 16-bit Quasi-Bidirectional Port: Allows for both input and output operations on the same port pins.
- I²C-Bus Interface: Supports communication with microcontrollers via a two-line bidirectional bus.
- Low Current Consumption: Suitable for battery-powered applications.
- High Current Drive Capability: Can directly drive LEDs and other high-current devices.
- Interrupt Line (INT): Allows the I/O expander to inform the microcontroller of incoming data without continuous polling.
- Address Selection: Three address inputs (A0, A1, A2) for multiple device addressing.
Applications
- Microcontroller Expansion: Expands the I/O capabilities of microcontrollers in various embedded systems.
- Industrial Automation: Used in control panels, sensors, and actuators.
- Consumer Electronics: Found in devices such as remote controls, set-top boxes, and other consumer electronics.
- Automotive Systems: Used in automotive control units and infotainment systems.
- Medical Devices: Used in medical equipment that requires expanded I/O capabilities.
Q & A
- What is the PCF8575TS/1,118 used for?
The PCF8575TS/1,118 is a remote 16-bit I/O expander used to expand the I/O capabilities of microcontrollers via the I²C-bus.
- What is the package type of the PCF8575TS/1,118?
The package type is SSOP24 (24-lead Shrink Small Outline Package).
- What is the maximum I²C-bus frequency supported by the PCF8575TS/1,118?
The maximum I²C-bus frequency supported is up to 400 kHz.
- Does the PCF8575TS/1,118 have an interrupt line?
Yes, it has an interrupt line (INT) that can inform the microcontroller of incoming data.
- What is the typical current consumption of the PCF8575TS/1,118?
The typical current consumption is 80 μA (static).
- Is the PCF8575TS/1,118 environmentally compliant?
Yes, it is PbFree, EU RoHS, and REACH SVHC compliant.
- How many address inputs does the PCF8575TS/1,118 have?
It has three address inputs (A0, A1, A2) for multiple device addressing.
- Can the PCF8575TS/1,118 directly drive LEDs?
Yes, it has high current drive capability to directly drive LEDs and other high-current devices.
- What types of applications use the PCF8575TS/1,118?
It is used in microcontroller expansion, industrial automation, consumer electronics, automotive systems, and medical devices.
- How does the PCF8575TS/1,118 communicate with microcontrollers?
It communicates via the I²C-bus, a two-line bidirectional bus.
