Описание
The Texas Instruments MSP430 family of ultralow-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 wake-up from low-power modes to active mode in less than 6µs. The MSP430FE42x series are microcontroller configurations with three independent 16-bit sigma-delta analog-to-digital (A/D) converters 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 LCD segment drive capability, and 14 I/O pins. Typical applications include 2-wire and 3-wire single-phase metering including tamper-resistant meter implementations.
- Active Mode: 400 µA at 1 MHz, 3.0 V
- Standby Mode: 1.6 µA
- Off Mode (RAM Retention): 0.1 µA
With Integrated Analog Front-End and Temperature Sensor (ESP430CE1)
or Synchronous SPI Selectable by Software
Programmable Code Protection by Security Fuse
- MSP430FE423:
8KB + 256B Flash Memory,
256B RAM - MSP430FE425:
16KB + 256B Flash Memory,
512B RAM - MSP430FE427:
32KB + 256B Flash Memory,
1KB RAM