Overview
The PCF8575TS/1,112 is a remote 16-bit I/O expander designed by NXP USA Inc. This silicon CMOS circuit provides general-purpose remote I/O expansion for most microcontroller families via the two-line bidirectional I²C-bus. It is particularly useful for expanding the I/O capabilities of microcontrollers in various electronic devices.
The device is part of the PCF8575 series and is packaged in a 24-pin SSOP (Shrink Small Outline Package) with a surface mount configuration. It is designed to operate with a supply voltage range of 2.5 to 5.5 V and features low current consumption, making it suitable for a wide range of applications.
Key Specifications
| Specification | Value |
|---|---|
| Manufacturer | NXP USA Inc. |
| Part Number | PCF8575TS/1,112 |
| Package Style | SSOP-24 |
| Mounting Method | Surface Mount |
| Supply Voltage | 2.5 V to 5.5 V |
| Standby Current Consumption | 10 µA maximum |
| I²C-Bus Speed | 400 kbits/s (FAST I²C-bus) |
| Number of I/Os | 16-bit quasi-bidirectional port |
| Interrupt Output | Open-drain interrupt output |
| Addressing | Address by 3 hardware address pins (up to 8 devices) |
Key Features
- 16-bit quasi-bidirectional I/O port for I²C-bus.
- Latched outputs with high current drive capability for directly driving LEDs.
- Open-drain interrupt output (INT) to inform the microcontroller of incoming data without I²C-bus communication.
- Low current consumption with a maximum standby current of 10 µA.
- Operating supply voltage range of 2.5 V to 5.5 V.
- 400 kbits/s FAST I²C-bus speed.
- Addressing by 3 hardware address pins, allowing up to 8 devices to be used.
Applications
The PCF8575TS/1,112 is versatile and can be used in a variety of applications, including:
- Expanding the I/O capabilities of microcontrollers in industrial control systems.
- Automotive systems for additional I/O needs.
- Consumer electronics such as TVs, set-top boxes, and mobile phones.
- Identification applications and access control systems.
- Any system requiring remote I/O expansion via the I²C-bus.
Q & A
- What is the PCF8575TS/1,112 used for?
The PCF8575TS/1,112 is used for remote 16-bit I/O expansion for most microcontroller families via the I²C-bus.
- What is the package style of the PCF8575TS/1,112?
The package style is SSOP-24 (Shrink Small Outline Package with 24 leads).
- What is the operating supply voltage range of the PCF8575TS/1,112?
The operating supply voltage range is 2.5 V to 5.5 V.
- What is the maximum standby current consumption of the PCF8575TS/1,112?
The maximum standby current consumption is 10 µA.
- Does the PCF8575TS/1,112 have an interrupt feature?
Yes, it has an open-drain interrupt output (INT) to inform the microcontroller of incoming data.
- How many devices can be addressed using the PCF8575TS/1,112?
Up to 8 devices can be addressed using the 3 hardware address pins.
- What is the I²C-bus speed of the PCF8575TS/1,112?
The I²C-bus speed is 400 kbits/s (FAST I²C-bus).
- Can the PCF8575TS/1,112 drive LEDs directly?
Yes, it has latched outputs with high current drive capability for directly driving LEDs.
- What type of mounting method does the PCF8575TS/1,112 use?
The mounting method is surface mount.
- What are some common applications of the PCF8575TS/1,112?
Common applications include industrial control systems, automotive systems, consumer electronics, and identification applications.
