TI MSP430F6726IPZ

The MSP430 family of ultra-low-power microcontrollers comprises a number of devices with different peripherals targeted at various applications. The architecture, combined with an extensive low-power mode description, makes it the optimal choice for extending battery life in portable measurement applications. The device features a powerful 16-bit RISC CPU, 16-bit registers, and a constant generator that aids in achieving maximum code efficiency. The digitally controlled oscillator (DCO) enables wake-up from low-power mode to active mode in 3µs (typical). The MSP430F67xx family is a series of microcontrollers configured with 3 high-performance 24-bit sigma-delta A/D converters, one 10-bit A/D converter, 4 enhanced universal serial communication interfaces (3 eUSCI_A and 1 eUSCI_B), four 16-bit timers, a hardware multiplier, DMA, a real-time clock module with alarm capability, an LCD driver with integrated contrast control, an auxiliary power supply system, and up to 72 I/O pins in 100-pin devices and up to 52 I/O pins in 80-pin devices. Typical applications for these devices include 2-wire and 3-wire single-phase metering, including tamper-resistant meter tooling.

• Low Supply Voltage Range: 3.6 V Down to 1.8 V
• Ultra-Low Power Consumption
  • Active Mode (AM): All system clocks active at 8 MHz, 265 µA/MHz at 3.0 V, flash program execution (typical); 140 µA/MHz at 8 MHz, 3.0 V, RAM program execution (typical)
  • Standby Mode (LPM3): Real-time clock with crystal, watchdog, and power monitor available; full RAM retention, fast wake-up: 1.7 µA at 2.2 V, 2.5 µA at 3.0 V (typical)
  • Off Mode (LPM4): Full RAM retention, power monitor available, fast wake-up: 1.6 µA at 3.0 V (typical)
  • Shutdown RTC Mode (LPM3.5): Shutdown Mode, Active Real-Time Clock (RTC) With Crystal: 1.24 µA at 3.0 V (Typical)
  • Shutdown Mode (LPM4.5): 0.78 µA at 3.0 V (typical)
• Wake-Up From Standby Mode in 3 µs (typical)
• 16-Bit RISC Architecture, Extended Memory, Up to 25 MHz System Clock
• Flexible Power Management System
  • Fully Integrated LDO With Programmable Regulated Core Supply Voltage
  • Supply Voltage Supervision, Monitoring, and Brownout
  • System Operation Powered by Up to 2 Auxiliary Power Supplies
• Unified Clock System With FLL Control Loop for Frequency Stabilization
  • Low-Power Low-Frequency Internal Clock Source (VLO)
  • Low-Frequency Trimmed Internal Reference Source (REFO)
  • 32-kHz Crystal (XT1)
• One 16-Bit Timer With 3 Capture/Compare Registers
• Three 16-Bit Timers, Each With 2 Capture/Compare Registers
• Enhanced Universal Serial Communication Interface
  • eUSCI_A0, eUSCI_A1, and eUSCI_A2
  • Enhanced UART With Auto Baud-Rate Detection
  • IrDA Encoder and Decoder
  • Synchronous SPI
  • eUSCI_B0
  • I2C With Multiple Slave Addressing
  • Synchronous SPI
• Password-Protected RTC With Crystal Offset Calibration and Temperature Compensation
• Independent Voltage Supply for Backup Subsystem
  • 32 kHz Low-Frequency Oscillator (XT1)
  • Real-Time Clock
  • Backup Memory (4 × 16-Bit)
• Three 24-Bit Sigma-Delta A/D Converters With Differential PGA Inputs
• Integrated LCD Driver With Up to 320-Segment Contrast Control in 8-Mux Mode
• Hardware Multiplier Supporting 32-Bit Operations
• 10-Bit 200-ksps A/D Converter
  • Internal Reference
  • Sample-and-Hold, Auto-Scan Feature With Up to 6 External Channels and 2 Internal Channels, Including Temperature Sensor
• 3-Channel Internal DMA
• Serial On-Board Programming, No External Programming Voltage Required
• Available in 100-Pin and 80-Pin LQFP Packages

• 2-wire and 3-wire single-phase metering
• Anti-interference instrumentation tool