Overview
The MSP430FR2522IPW16R is a member of the MSP430FR25x2 family of ultra-low-power microcontrollers (MCUs) from Texas Instruments. This device is specifically designed for capacitive touch sensing applications, featuring CapTIvate™ technology. It is ideal for cost-sensitive industrial applications that require reliable touch solutions, even in environments exposed to electromagnetic disturbances, oil, water, and grease. The MSP430FR2522IPW16R offers high performance, low power consumption, and robust noise immunity, making it a versatile choice for various touch-based applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | TSSOP (PW) with 16 pins |
| Operating Temperature Range | -40°C to 85°C |
| Microcontroller Architecture | 16-bit RISC |
| Clock Frequency | Up to 16 MHz |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Memory | 7.25 KB of program FRAM, 256 B of information FRAM, 2 KB of RAM |
| Analog-to-Digital Converter (ADC) | Up to 8-channel 10-bit ADC, internal 1.5-V reference, sample-and-hold 200 ksps |
| Capacitive Touch Sensors | Up to 8 self-capacitive and 16 mutual-capacitive sensors |
| Power Consumption | Active mode: 120 µA/MHz (typical), Standby: <4 µA wake-on-touch with two sensors, Shutdown (LPM4.5): 36 nA without SVS |
| Timers and Peripherals | Two 16-bit timers with three capture/compare registers each, one 16-bit counter-only RTC, 16-bit cyclic redundancy check (CRC) |
| Serial Communications | One eUSCI_A supports UART, IrDA, and SPI; one eUSCI_B supports SPI and I2C |
Key Features
- CapTIvate™ Technology: Fast electrode scanning with two simultaneous scans, proximity sensing, and high reliability with increased immunity to power line, RF, and other environmental noise.
- Low Power Consumption: Active mode: 120 µA/MHz (typical), Standby: <4 µA wake-on-touch with two sensors, Shutdown (LPM4.5): 36 nA without SVS.
- High-Performance Analog: Up to 8-channel 10-bit ADC, internal 1.5-V reference, sample-and-hold 200 ksps.
- Intelligent Digital Peripherals: Two 16-bit timers with three capture/compare registers each, one 16-bit counter-only RTC, 16-bit cyclic redundancy check (CRC).
- Enhanced Serial Communications: One eUSCI_A supports UART, IrDA, and SPI; one eUSCI_B supports SPI and I2C.
- Development Tools and Software: CapTIvate Design Center for real-time tuning, MSP CapTIvate MCU development kit, and comprehensive software libraries.
- Multi-Touch and Proximity Sensing: Supports up to 8 self-capacitive and 16 mutual-capacitive sensors, and touch through glass, plastic, and metal overlays.
Applications
- Electronic smart locks, door keypads, and readers
- Garage door systems
- Intrusion HMI keypads and control panels
- Elevator call buttons
- Personal electronics
- Wireless speakers and headsets
- A/V receivers
- Appliances
- Power tools
- Light switches
- Video doorbells
Q & A
- What is the primary application of the MSP430FR2522IPW16R?
The primary application is for capacitive touch sensing in various industrial and consumer electronics, such as smart locks, garage door systems, and personal electronics.
- What is CapTIvate™ technology?
CapTIvate™ technology is a capacitive touch sensing technology that offers fast electrode scanning, proximity sensing, and high reliability with immunity to environmental noise.
- What are the key power consumption modes of the MSP430FR2522IPW16R?
The device operates in active mode (120 µA/MHz typical), standby mode (<4 µA wake-on-touch with two sensors), and shutdown mode (36 nA without SVS).
- What types of sensors does the MSP430FR2522IPW16R support?
The device supports up to 8 self-capacitive and 16 mutual-capacitive sensors.
- What is the memory configuration of the MSP430FR2522IPW16R?
The device has 7.25 KB of program FRAM, 256 B of information FRAM, and 2 KB of RAM.
- What are the key analog features of the MSP430FR2522IPW16R?
The device includes an up to 8-channel 10-bit ADC with an internal 1.5-V reference and sample-and-hold 200 ksps.
- What development tools are available for the MSP430FR2522IPW16R?
Development tools include the CapTIvate Design Center, MSP CapTIvate MCU development kit, and comprehensive software libraries.
- What are the package options for the MSP430FR2522IPW16R?
The device is available in a 16-pin TSSOP (PW) package.
- What is the operating temperature range of the MSP430FR2522IPW16R?
The operating temperature range is -40°C to 85°C.
- How does the MSP430FR2522IPW16R handle noise immunity?
The device features built-in spread spectrum, automatic tuning, noise filtering, and debouncing algorithms, ensuring high reliability and noise immunity.
