MSP430FR2633IDAR

The MSP430FR263x and MSP430FR253x are ultra-low-power MSP430™ microcontrollers for capacitive touch sensing, featuring CapTIvate™ touch technology, designed for digital input Class-D audio amplifier applications including buttons, sliders, wheels, and proximity sensing. MSP430 MCUs with CapTIvate technology deliver highly integrated and autonomous capacitive touch solutions with high reliability, noise immunity, and minimal power consumption. TI's capacitive touch technology supports simultaneous use of self-capacitance and mutual-capacitance electrodes within the same design, maximizing flexibility. MSP430 MCUs with CapTIvate technology can sense through thick glass, plastic housings, metal, and wood, operating reliably in harsh environments including wet, greasy, and dirty conditions. TI's capacitive touch sensing MSP430 MCUs are backed by an ecosystem of software and hardware resources, complemented by reference designs and code examples to help accelerate your design process. TI's MSP430 ultra-low-power (ULP) FRAM microcontroller platform combines unique embedded FRAM with a comprehensive ultra-low-power system architecture, enabling system designers to enhance performance while reducing energy consumption. FRAM technology combines the low-energy, fast-write capability, flexibility, and endurance of RAM with the non-volatility of Flash.

Applications

• Electronic smart locks, door keypads, and readers
• Garage door systems
• Intrusion HMI keypads and control panels
• Motorized blinds
• Remote controls
• Wireless speakers and headphones
• Handheld video game controllers
• AV receivers
• White goods
• Small appliances
• Garden and power tools

Key features

• CapTlvate™ technology - capacitive touch
• Four-channel simultaneous fast electrode scanning
• High-resolution slider support up to 1024 points
• Proximity sensing
• Enhanced immunity against power line, RF, and other environmental noise
• Built-in spread spectrum, auto-tuning, noise filtering, and debounce algorithms
• Robust touch solution with 10VRMS common-mode noise, 4kV electrical fast transient, and 15kV ESD, compliant with IEC-61000-4-6, IEC-61000-4-4, and IEC-61000-4-2
• Reduced RF emissions, simplified electrical design
• Metal touch and waterproof design support
• Up to 16 self-capacitance electrodes and 64 mutual-capacitance electrodes
• Mixed use of self-capacitance and mutual-capacitance electrodes in the same design
• Multi-touch support
• Wide capacitance detection range; electrode range 0 to 300pF
• Touch wake-up current less than 5μA for four sensors
• Touch wake-up state machine supports electrode scanning during CPU sleep
• Hardware acceleration for environmental compensation, filtering, and threshold detection
• CapTlvate Design Center PC GUI enables real-time design and debug of capacitive buttons without coding
• CapTlvate software library stored in ROM provides ample FRAM for customer applications
• 16-bit RISC architecture
• Clock frequency support up to 16MHz
• Wide supply voltage range 3.6V to 1.8V (minimum supply voltage limited by SVS level, refer to SVS specifications)
• Active mode: 126uA/MHz (typical)
• Standby mode: touch wake-up current less than 5uA for four sensors
• LPM3.5 RTC counter with 32768Hz crystal: 730nA (typical)
• Shutdown current (LPM4.5): 16nA (typical)
• 8-channel 10-bit ADC
• 1.5V internal reference voltage
• Sample-and-hold 200ksps
• Two enhanced universal serial communication interfaces (eUSCI_A) supporting UART, IrDA, and SPI
• One eUSCI (eUSCI_B) supporting SPI and I²C
• Four 16-bit timers
• Two timers, each with three capture/compare registers (Timer_A3)
• Two timers, each with two capture/compare registers (Timer_A2)
• One 16-bit timer using CapTlvate technology
• One 16-bit RTC for counter use only
• 16-bit CRC
• Non-volatile memory up to 15.5KB
• Built-in ECC
• Configurable write protection
• Unified memory for program, constants, and storage
• Write endurance up to 10^15 cycles
• Radiation-tolerant and non-magnetic
• FRAM to SRAM ratio up to 4:1
• On-chip 32kHz RC oscillator (REFO)
• On-chip 16MHz digitally controlled oscillator (DCO) with FLL
• ±1% accuracy at room temperature (with on-chip reference)
• On-chip ultra-low-frequency 10kHz oscillator (VLO)
• On-chip high-frequency modulation oscillator (MODOSC)
• External 32kHz crystal (LFXT)
• Programmable MCLK prescaler (1 to 128)
• SMCLK derived from MCLK via programmable prescaler (1, 2, 4, or 8)
• Total 19 I/Os (TSSOP-32 package) - 16 interrupt pins (P1 and P2) capable of waking MCU from low-power mode