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.