16-bit Ultra-Low-Power Microcontroller, 32KB Flash, 1KB RAM, Sigma-Delta ADC, 128 Seg LCD - MSP430F427

MSP430F427 (NRND)

16-bit Ultra-Low-Power Microcontroller, 32KB Flash, 1KB RAM, Sigma-Delta ADC, 128 Seg LCD


Not Recommended for New Designs (NRND)

Replaced By MSP430F427A– The device has the SAME FUNCTIONALITY and PINOUT as the compared device but is NOT an exact equivalent.MSP430F427A is recommended for new designs

TI does not recommend using this part in a new design. This product continues to be in production to support existing customers.


The Texas Instruments MSP430 family of ultralow power microcontrollers consist 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 attribute to maximum code efficiency. The digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in less than 6µs.

The MSP430F42x series are microcontroller configurations with three independent 16-bit sigma-delta A/D converters, each with an integrated differential programmable gain amplifier input stage. Also included is a built-in 16-bit timer, 128 LCD segment drive capability, hardware multiplier and 14 I/O pins.

Typical applications include high resolution applications such as handheld metering equipment, weigh scales and energy meters.


  • Low Supply-Voltage Range, 1.8 V to 3.6 V
  • Ultralow-Power Consumption:
    • Active Mode: 400 µA at 1 MHz, 3.0 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
  • Three Independent 16-bit Sigma-Delta A/D Converters with Differential PGA Inputs
  • 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/Monitor With Programmable Level Detection
  • Serial Onboard Programming, No External Programming Voltage Needed Programmable Code Protection by Security Fuse
  • Bootstrap Loader in Flash Devices
  • Family Members Include:
    • MSP430F423:
          8KB + 256B Flash Memory, 256B RAM
    • MSP430F425:
          16KB + 256B Flash Memory, 512B RAM
    • MSP430F427:
          32KB + 256B Flash Memory, 1KB RAM
  • Available in 64-Pin Quad Flat Pack (QFP)
  • For Complete Module Descriptions, Refer to the MSP430x4xx Family User’s Guide, Literature Number SLAU056

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