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/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:
MSP430FE423: 8KB + 256B Flash Memory, 256B RAM
MSP430FE425: 16KB + 256B Flash Memory, 512B RAM
MSP430FE427: 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
Description
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 MSP430xE42x series are microcontroller configurations with three independent 16-bit sigma-delta A/D converters and embedded signal processor core used to measure and calculate single-phase energy in both 2 and 3 wire configurations. Also included is a built-in 16-bit timer, 128 LCD segment drive capability, and 14 I/O pins.
Typical applications include 2-wire and 3-wire single-phase energy metering including tamper-resistant meter implementations.
