Low Supply-Voltage Range, 1.8 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
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:
-- MSP430F423A:
8KB + 256B Flash Memory,
256B RAM
-- MSP430F425A:
16KB + 256B Flash Memory,
512B RAM
-- MSP430F427A:
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 InstrumentsMSP430 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 portablemeasurement 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 MSP430F42xA 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 are 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.