1.1 Features 1

• Low supply-voltage range: 1.8 V to 3.6 V

• Ultra-low power consumption

– Active mode: 400 μA at 1 MHz, 2.2 V

– Standby mode: 1.3 μA

– Off mode (RAM retention): 0.22 μA

• Five power-saving modes

• Wakeup from standby mode in less than 6 μs

• 16-bit RISC architecture, extended memory,

125‑ns instruction cycle time

• Three-channel internal DMA

• 12-bit analog-to-digital converter (ADC) with

internal reference, sample-and-hold and autoscan

feature

• Three configurable operational amplifiers

• Dual 12-bit digital-to-analog converters (DACs)

with synchronization

• 16-bit Timer_A with three capture/compare

registers

• 16-bit Timer_B with seven capture/compare-withshadow

registers

• On-chip comparator

• Supply voltage supervisor and monitor with

programmable level detection

• Serial communication interface (USART1), select

asynchronous UART or synchronous SPI by

software

• Universal serial communication interface

– Enhanced UART supports automatic baud-rate

detection

– IrDA encoder and decoder

– Synchronous SPI

– I2C

• Serial onboard programming, programmable code

protection by security fuse

• Brownout detector

• Basic timer with real-time clock (RTC) feature

• Integrated LCD driver up to 160 segments with

regulated charge pump

• Device Comparison summarizes the available

family members

– MSP430FG4616, MSP430FG4616,

92KB+256B of flash or ROM,

4KB of RAM

– MSP430FG4617, MSP430CG4617,

92KB+256B of flash or ROM,

8KB of RAM

– MSP430FG4618, MSP430CG4618,

116KB+256B of flash or ROM,

8KB of RAM

– MSP430FG4619, MSP430CG4619,

120KB+256B of flash or ROM,

4KB of RAM

1.2 Applications

• Portable medical applications

• E-meter applications

1.3 Description

The TI 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 the device to wake up from lowpower

modes to active mode in less than 6 μs.

The MSP430xG461x series are microcontroller configurations with two 16-bit timers, a high-performance

12-bit ADC, dual 12-bit DACs, three configurable operational amplifiers, one universal serial

communication interface (USCI), one universal synchronous/asynchronous communication interface

(USART), DMA, 80 I/O pins, and a segment liquid crystal display (LCD) driver with regulated charge

pump.

For complete module descriptions, see the MSP430x4xx Family User’s Guide.