• Embedded Microcontroller
  • 16-Bit RISC Architecture
  • Clock Supports Frequencies up to 16 MHz
  • Wide Supply Voltage Range From 1.8V to 3.6V (1)
• Optimized Ultra-Low-Power Modes
  • Active Mode: 126 µA/MHz (Typical)
  • Standby
    • 1.7 µA/Button Average (Typical) (16 Self-Capacitance Buttons, 8-Hz Scanning)
    • 1.7 µA/Button Average (Typical) (64 Mutual-Capacitance Buttons, 8-Hz Scanning)
  • LPM3.5 Real-Time Clock (RTC) Counter With 32768-Hz Crystal: 770 nA (Typical)
  • Shutdown (LPM4.5): 15 nA (Typical)
• Low-Power Ferroelectric RAM (FRAM)
  • Up to 15.5KB 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
• Intelligent Digital Peripherals
  • Four 16-Bit Timers
    • Two Timers With Three Capture/Compare Registers Each (Timer_A3)
    • Two Timers With Two Capture/Compare Registers Each (Timer_A2)
  • One 16-Bit Timer Associated With CapTIvate™ Technology
  • One 16-Bit Counter-Only RTC
  • 16-Bit Cyclic Redundancy Check (CRC)
• Enhanced Serial Communications
  • Two Enhanced Universal Serial Communication Interfaces (eUSCI_A) Support UART, IrDA, and SPI
  • One eUSCI (eUSCI_B) Supports SPI and I2C
• High-Performance Analog
  • 8-Channel 10-Bit Analog-to-Digital Converter (ADC)
    • Internal 1.5-V Reference
    • Sample-and-Hold 200 ksps
  • CapTIvate Technology – Capacitive Touch
    • Performance
      • Fast Electrode Scanning With Four Simultaneous Scans
      • Support for High-Resolution Sliders With >1024 Points
      • 30-cm 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 16 Self-Capacitance and 64 Mutual-Capacitance Electrodes
      • Mix and Match Self- and Mutual-Capacitive Electrodes in the Same Design
      • Supports Multitouch Functionality
      • Wide Range of Capacitance Detection, Wide Electrode Range of 0 to 300 pF
    • Low Power
      • <0.9 µA/Button in Wake-on-Touch Mode, Where Capacitive Measurement and Touch Detection is Done by Hardware State Machine While CPU is Asleep
      • 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
• 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 19 I/Os on TSSOP-32 Package
  • 16 Interrupt Pins (P1 and P2) Can Wake MCU From Low-Power Modes
• Development Tools and Software
  • Ease-of-Use Ecosystem
    • CapTIvate Design Center – Code Generation, Customizable GUI, Real-Time Tuning
  • Free Professional Development Environments
• 12-KB ROM Library Includes CapTIvate Touch Libraries and Driver Libraries
• Family Members (Also See Section 3)
  • MSP430FR2633: 15KB of Program FRAM + 512B of Information FRAM + 4KB of RAM up to 16 Self-Capacitive and 64 Mutual-Capacitive Sensors
  • MSP430FR2533: 15KB of Program FRAM + 512B of Information FRAM + 2KB of RAM up to 16 Self-Capacitive or 16 Mutual-Capacitive Sensors
  • MSP430FR2632: 8KB of Program FRAM + 512B of Information FRAM + 2KB of RAM up to 8 Self-Capacitive or 16 Mutual-Capacitive Sensors
  • MSP430FR2532: 8KB of Program FRAM + 512B of Information FRAM + 1KB of RAM up to 8 Self-Capacitive or 8 Mutual-Capacitive Sensors
• Package Options
  • 32-Pin: VQFN (RHB)
  • 32-Pin: TSSOP (DA)
  • 24-Pin: VQFN (RGE)
• For Complete Module Descriptions, See the MSP430FR4xx and MSP430FR2xx Family User's Guide (SLAU445)

(1) Minimum supply voltage is restricted by SVS levels (see VSVSH- and VSVSH+ in Table 5-2)

• Thermostats
• Electronic Access Control
• Lighting Control
• Electronic Door Locks
• White Goods
• Small Appliances
• Personal Electronics

The MSP430FR263x and MSP430FR253x are FRAM-based ultra-low-power MSP microcontrollers that feature CapTIvate touch technology for buttons, sliders, wheels (BSW), and proximity applications. CapTIvate technology provides the highest resolution capacitive-touch solution in the market with high reliability and noise immunity at the lowest power. CapTIvate technology supports concurrent self-capacitance and mutual-capacitance electrodes on the same design for maximum flexibility. Using the CapTIvate Design Center, engineers can quickly develop BSW applications with an easy-to-use GUI.

The TI MSP family of low-power microcontrollers consists of several devices that feature different sets of peripherals targeted for various applications. The architecture, combined with extensive low-power modes, is optimized to achieve extended battery life in portable measurement applications. The MCU features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows the MCU to wake up from low-power modes to active mode typically in less than 10 µs.

PART NUMBER	PACKAGE	BODY SIZE(2)
MSP430FR2633IRHB	VQFN (32)	5 mm × 5 mm
MSP430FR2533IRHB	VQFN (32)	5 mm × 5 mm
MSP430FR2633IDA	TSSOP (32)	11 mm × 6.2 mm
MSP430FR2533IDA	TSSOP (32)	11 mm × 6.2 mm
MSP430FR2632IRGE	VQFN (24)	4 mm × 4 mm
MSP430FR2532IRGE	VQFN (24)	4 mm × 4 mm

• SN74LV32A - 四路 2 输入正或门
• SN74LVC2G125-Q1 - 汽车类具有三态输出的双路总线缓冲器闸
• LM27213 - 单相滞后降压控制器
• TPS62691 - 采用芯片级封装的 600mA、4MHz、2.2V 高效降压转换器
• TPS70448 - 具有双路使能输入和用于分压系统的 SVS 的双路输出 (3.3V/1.2V)1A/2A LDO 稳压器
• SN54S124 - 双路压控震荡器
• SN74F373 - 八路 D 类透明锁存器
• MSP430FR69221 - MSP430FR697x(1)、MSP430FR6 87x(1)、MSP430FR692x(1)、MSP430FR682x(1) MCU
• CSD17577Q5A - CSD17577Q5A
• ADS7041 - 超低功耗和超小尺寸、12 位、1-MSPS、SAR ADC