TI MSP430F5131IDAR

TI's MSP series of ultra-low-power microcontrollers come in a wide variety. Each member device is equipped with different peripheral sets to meet the requirements of various applications. This architecture, when used in conjunction with five low-power modes, is the optimal choice for extending the battery life of portable measurement applications. The device features a powerful 16-bit Reduced Instruction Set (RISC) CPU, which uses 16-bit registers and a constant generator to achieve the highest coding efficiency. The Digitally Controlled Oscillator (DCO) enables the device to wake up from the low-power mode to the active mode in less than 5µs.

The MSP430F51x2 microcontroller includes two 16-bit high-resolution timers, two USCI (USCI_A0 and USCI_B0), a 32-bit hardware multiplier, a high-performance 10-bit ADC, an on-chip comparator, a three-channel DMA, 5V-tolerant I/O, and up to 29 I/O pins.

The MSP430F51x1 microcontroller includes two 16-bit high-resolution timers, two USCI (USCI_A0 and USCI_B0), a 32-bit hardware multiplier, an on-chip comparator, a three-channel DMA, 5V-tolerant I/O, and up to 29 I/O pins.

• Supply voltage range: 3.6V to 1.8V
• Ultra-low power consumption
  • Active mode (AM): 180µA/MHz
  • Standby mode (LPM3 WDT mode, 3V): 1.1µA
  • Off mode (LPM4 RAM retention, 3V): 0.9µA
  • Shutdown mode (LPM4.5, 3V): 0.25µA
• Wake-up from standby mode in less than 5μs
• 16-bit RISC architecture with extended memory, 40ns instruction cycle time
• Flexible power management system
  • Integrated programmable LDO
  • Supply voltage supervision, monitoring, and brownout
• Unified clock system
  • FLL control loop for frequency stabilization
  • Low-power low-frequency internal clock source (VLO)
  • Low-frequency trimmed internal reference source (REFO)
  • 32kHz crystal oscillator (XT1)
  • High-frequency crystal oscillator up to 25MHz (XT1)
• Hardware multiplier supporting 32-bit operations
• 3-channel DMA
• Up to 12 5V-tolerant digital push-pull I/Os with drive strength up to 20mA
• 16-bit timer TD0 with 3 capture/compare registers and high-resolution mode support
• 16-bit timer TD1 with 3 capture/compare registers and high-resolution mode support
• 16-bit timer TA0 with 3 capture/compare registers
• Universal Serial Communication Interface (USCI)
  • USCI_A0 supports:
    • Enhanced UART with automatic baud rate detection
    • IrDA encoder and decoder
    • SPI
  • USCI_B0 supports:
    • I²C
    • SPI
• 10-bit 200ksps ADC
  • Internal reference voltage
  • Sample-and-hold
  • Auto-scan feature
  • Up to 8 external channels and 2 internal channels, including temperature sensor
• Up to 16-channel on-chip comparator with ultra-low-power mode
• Serial in-system programming, no external programming voltage required
• Available in 40-pin QFN (RSB), 38-pin TSSOP (DA), and 40-pin die-size BGA (YFF) packages

• Analog and digital sensor systems
• LED lighting
• Digital power
• Motor control
• Remote thermostats