TI MSP430F6438IPZR

The TI MSP430 series of ultra-low-power microcontrollers comes in a wide variety, and 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 battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU that uses 16-bit registers and a constant generator to achieve maximum coding efficiency. The digitally controlled oscillator (DCO) can wake up from a low-power mode to an active mode in 3µs (typical). The MSP430F643x devices are microcontrollers equipped with the following peripherals: an integrated 3.3V low-dropout regulator (LDO), a high-performance 12-bit ADC, a comparator, two USCI, a hardware multiplier, DMA, four 16-bit timers, an RTC module with an alarm function, an LCD driver, and up to 74 I/O pins.

• Supply voltage range: 1.8V to 3.6V
• Ultra-low power consumption
  • Active Mode (AM): All system clocks active: 270µA/MHz at 8MHz, 3.0V, Flash program execution (typical)
  • Standby Mode (LPM3): Watchdog and power monitor with crystal available, full RAM retention, fast wake-up: 1.8µA at 2.2V, 2.1µA at 3.0V (typical)
  • Turn off RTC Mode (LPM3.5): Off mode with active RTC using crystal: 1.1µA at 3.0V (typical)
  • Off Mode (LPM4.5): 0.3µA at 3.0V (typical)
• Wake-up from standby mode within 3µs (typical)
• 16-bit RISC architecture, extended memory, system clock up to 20MHz
• Flexible power management system
  • Fully integrated LDO with programmable regulated core supply voltage
  • Supply voltage monitoring, supervision, and brownout protection
• Single 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 32MHz (XT2)
• Four 16-bit timers, each with 3, 5, or 7 capture/compare registers
• Two Universal Serial Communication Interfaces (USCI)
• Enhanced UART with automatic baud rate detection
• IrDA encoder and decoder with synchronous SPI
• USCI_B0 and USCI_B1 both support: I2C synchronous SPI
• Integrated 3.3V power supply system
• 12-bit ADC with internal shared reference, sample-and-hold, and auto-scan capability
• Dual 12-bit DAC with synchronization
• Voltage comparator
• Integrated LCD driver up to 160 segments with contrast control
• Hardware multiplier supporting 32-bit operations
• Serial in-system programming, no external programming voltage required
• 6-channel internal DMA
• RTC module with supply voltage backup switching

• Analog and digital sensor systems
• Digital motor control
• Remote control
• Thermostats
• Digital timers
• Handheld instruments