TI MSP430FE427IPMR

The TI MSP430 family of ultra-low-power microcontrollers consists of several devices featuring different sets of peripherals targeted for various applications. The architecture, combined with five low-power modes, is optimized to achieve extended battery life in portable measurement applications. The device 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 device to wake up from low-power modes to active mode in less than 6 µs. The MSP430FE42x series are microcontroller configurations with three independent 16-bit sigma-delta ADCs and an embedded signal processor core used to measure and calculate single-phase energy in both 2-wire and 3-wire configurations. Also included are a built-in 16-bit timer, 128-segment LCD drive capability, and 14 1/O pins. Typical applications include 2-wire and 3-wire single-phase metering including tamper-resistant meter implementations.

• Low Supply Voltage Range: 2.7 V to 3.6 V
• Ultra-Low Power Consumption:
  • Active Mode: 400 µA at 1 MHz, 3 V
  • Standby Mode: 1.6 µA
  • Off Mode (RAM Retention): 0.1 µA
• Five Power-Saving Modes
• Wake up From Standby Mode in Less Than 6 µs
• Frequency-Locked Loop, FLL+
• 16-Bit RISC Architecture, 125-ns Instruction Cycle Time
• Embedded Signal Processing for Single-Phase Energy Metering With Integrated Analog Front End and Temperature Sensor (ESP430CE1)
• 16-Bit Timer_A With Three Capture/Compare Registers
• Integrated LCD Driver for 128 Segments
• Serial Communication Interface (USART), Asynchronous UART or Synchronous SPI Selectable by Software
• Brownout Detector
• Supply Voltage Supervisor and Monitor With Programmable Level Detection
• Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
• Bootloader (BSL)
• Available in 64-Pin Quad Flat Pack (LQFP)

• 2-Wire and 3-Wire Single-Phase Meters
• Tamper-Resistant Meters