Overview
The STMPE1801BJR is a sophisticated electronic component produced by STMicroelectronics. It is an Xpander Logic 18-bit enhanced port expander with a keypad controller, designed to provide a comprehensive solution for expanding the input/output capabilities of microcontrollers and other embedded systems. This device is particularly useful in applications requiring multiple input/output lines, keypad scanning, and other peripheral control functions.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 18-bit |
| Number of GPIOs | 18 |
| Operating Voltage | 1.65 to 3.6V |
| Keypad Controller | Yes |
| Package Type | QFN-24 |
Key Features
- 18-bit Port Expander: Provides 18 GPIO lines, allowing for significant expansion of the input/output capabilities of the host microcontroller.
- Keypad Controller: Integrated keypad controller supports up to 8x8 matrix keypads, simplifying user interface implementation.
- Low Power Consumption: Operates within a voltage range of 1.65 to 3.6V, making it suitable for battery-powered and low-power applications.
- Flexible Configuration: Supports various configuration options, including interrupt generation and programmable pull-up resistors.
Applications
- Industrial Control Systems: Ideal for expanding I/O capabilities in industrial control panels and human-machine interfaces.
- Consumer Electronics: Used in various consumer devices such as remote controls, gaming consoles, and other interactive devices.
- Medical Devices: Suitable for medical equipment requiring multiple input/output lines and keypad interfaces.
- Automotive Systems: Can be used in automotive infotainment systems and other vehicle control units.
Q & A
- What is the STMPE1801BJR?
The STMPE1801BJR is an Xpander Logic 18-bit enhanced port expander with a keypad controller produced by STMicroelectronics.
- How many GPIO lines does the STMPE1801BJR provide?
The STMPE1801BJR provides 18 GPIO lines.
- What is the operating voltage range of the STMPE1801BJR?
The operating voltage range is from 1.65 to 3.6V.
- Does the STMPE1801BJR have a built-in keypad controller?
Yes, it has an integrated keypad controller that supports up to 8x8 matrix keypads.
- What package type is the STMPE1801BJR available in?
The STMPE1801BJR is available in a QFN-24 package.
- What are some common applications of the STMPE1801BJR?
Common applications include industrial control systems, consumer electronics, medical devices, and automotive systems.
- How does the STMPE1801BJR help in expanding I/O capabilities?
The STMPE1801BJR expands the I/O capabilities of the host microcontroller by providing additional GPIO lines and a keypad controller.
- Is the STMPE1801BJR suitable for low-power applications?
Yes, it is suitable for low-power applications due to its low power consumption and operating voltage range.
- Can the STMPE1801BJR be used in battery-powered devices?
Yes, it can be used in battery-powered devices due to its low power consumption and compatible voltage range.
- Where can I find detailed specifications and datasheets for the STMPE1801BJR?
Detailed specifications and datasheets can be found on the STMicroelectronics official website, as well as on distributor websites like Mouser Electronics.
