Low Supply-Voltage Range, 2.7 V to 3.6 V

Ultra-Low-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

Embedded Signal Processing for

Single-Phase Energy Metering With

Integrated Analog Front-End and

Temperature Sensor (ESP430CE1B)

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:

− MSP430FE4232

8KB + 256B Flash Memory,

256B RAM

− MSP430FE4242

12KB + 256B Flash Memory,

512B RAM

− MSP430FE4252

16KB + 256B Flash Memory,

512B RAM

− MSP430FE4272

32KB + 256B Flash Memory,

1KB RAM

Available in 64-Pin Quad Flat Pack (QFP)

For Complete Module Descriptions,

See the MSP430x4xx Family User’s Guide,

Literature Number SLAU056

description

The Texas Instruments 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 wake-up from low-power modes to active mode in less

than 6 μs.

The MSP430FE42x2 devices are microcontroller configurations with two independent 16-bit sigma-delta

analog-to-digital (A/D) converters and embedded signal processor core used to measure and calculate

single-phase energy in both 2-wire 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 metering.