MSP430FR2522

ACTIVE

This product has been released to the market and is available for purchase. For some products, newer alternatives may be available.

Capacitive Touch MCU with 8 touch IO (16 sensors), 8KB FRAM, 2KB SRAM, 15 IO, 10-bit ADC

• CapTIvate™ technology – capacitive touch
  • Performance
    • Fast electrode scanning with two simultaneous scans
    • Proximity sensing
  • Reliability
    • Increased immunity to power line, RF, and other environmental noise
    • Built-in spread spectrum, automatic tuning, noise filtering, and debouncing algorithms
    • Enables reliable touch solutions with 10-V RMS common-mode noise, 4-kV electrical fast transients, and 15-kV electrostatic discharge, allowing for IEC‑61000-4-6, IEC-61000-4-4, and IEC‑61000-4-2 compliance
    • Reduced RF emissions to simplify electrical designs
    • Support for metal touch and water rejection designs
  • Flexibility
    • Up to 8 self-capacitance and 16 mutual-capacitance electrodes
    • Mix and match self- and mutual-capacitive electrodes in the same design
    • Supports multi-touch functionality
    • Wide range of capacitance detection, wide electrode range of 0 to 300 pF
  • Low power
    • <4 µA wake-on-touch with two sensors
    • Wake-on-touch state machine allows electrode scanning while CPU is asleep
    • Hardware acceleration for environmental compensation, filtering, and threshold detection
  • Ease of use
    • CapTIvate Design Center, PC GUI lets engineers design and tune capacitive buttons in real time without having to write code
    • CapTIvate software library in ROM provides ample FRAM for customer application
• Embedded microcontroller
  • 16-bit RISC architecture
  • Clock supports frequencies up to 16 MHz
  • Wide supply voltage range from 3.6 V down to 1.8 V (minimum supply voltage is restricted by SVS levels, see the SVS Specifications)
• Optimized ultra-low-power modes
  • Active mode: 120 µA/MHz (typical)
  • Standby: <4 µA wake-on-touch with two sensors
  • Shutdown (LPM4.5): 36 nA without SVS
• Low-power ferroelectric RAM (FRAM)
  • Up to 7.5 KB of nonvolatile memory
  • Built-in error correction code (ECC)
  • Configurable write protection
  • Unified memory of program, constants, and storage
  • 10¹⁵ write cycle endurance
  • Radiation resistant and nonmagnetic
  • High FRAM-to-SRAM ratio, up to 4:1
• High-performance analog
  • Up to 8-channel 10-bit analog-to-digital converter (ADC)
    • Internal 1.5-V reference
    • Sample-and-hold 200 ksps
• Intelligent digital peripherals
  • Two 16-bit timers with three capture/compare registers each (Timer_A3)
  • One 16-bit timer associated with CapTIvate™ technology
  • One 16-bit counter-only RTC
  • 16-bit cyclic redundancy check (CRC)
• Enhanced serial communications with support for pin remap feature (see Device Comparison)
  • One eUSCI_A supports UART, IrDA, and SPI
  • One eUSCI_B supports SPI and I²C
• Clock system (CS)
  • on-chip 32-kHz RC oscillator (REFO)
  • on-chip 16-MHz digitally controlled oscillator (DCO) with frequency-locked loop (FLL)
    • ±1% accuracy with on-chip reference at room temperature
  • On-chip very low-frequency 10-kHz oscillator (VLO)
  • On-chip high-frequency modulation oscillator (MODOSC)
  • External 32-kHz crystal oscillator (LFXT)
  • Programmable MCLK prescalar of 1 to 128
  • SMCLK derived from MCLK with programmable prescalar of 1, 2, 4, or 8
• General input/output and pin functionality
  • Total of 15 I/Os on VQFN-20 package
  • 15 interrupt pins (P1 and P2) can wake MCU from low-power modes
• Development tools and software
  • Development tools
    • MSP CapTIvate™ MCU development kit evaluation: use with CAPTIVATE‑PGMR programmer and capacitive touch MSP430FR2522 MCU board BOOSTXL‑CAPKEYPAD
    • Target development board MSP‑TS430RHL20
  • Ease-of-use ecosystem
    • CapTIvate Design Center – code generation, customizable GUI, real-time tuning
• 12KB ROM library includes CapTIvate touch libraries and driver libraries
• Family Members (Also See Device Characteristics)
  • MSP430FR2522: 7.25KB of program FRAM, 256B of information FRAM, 2KB of RAM
    up to 8 self-capacitive and 16 mutual-capacitive sensors
  • MSP430FR2512: 7.25KB of program FRAM, 256B of information FRAM, 2KB of RAM
    up to 4 self-capacitive or mutual-capacitive sensors
• Package options
  • 20-pin: VQFN (RHL)
  • 16-pin: TSSOP (PW)

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