1 Features

• Supply voltage range: 2.2 V to 3.6 V

• High-performance analog

– MSP430i204x: Four 24-bit sigma-delta analogto-

digital converters (ADCs) with differential

PGA inputs

– MSP430I203x: Three 24-bit sigma-delta

analog-to-digital converters (ADCs) with

differential PGA inputs

– MSP430I202x: Two 24-bit sigma-delta analogto-

digital converters (ADCs) with differential

PGA inputs

• Ultra-low power consumption

– Active mode (AM):

All system clocks active

275 μA/MHz at 16.384-MHz, 3.0 V, flash

program execution (typical)

– Standby mode (LPM3):

Watchdog timer active, full RAM retention

210 μA at 3.0 V (typical)

– Off mode (LPM4):

Full RAM retention

70 μA at 3.0 V (typical)

– Shutdown mode (LPM4.5):

75 nA at 3.0 V (typical)

• Intelligent digital peripherals

– Two 16-bit timers with three capture/compare

registers each

– Hardware multiplier supports 16-bit operations

• Enhanced universal serial communication

interfaces (eUSCIs)

– eUSCI_A0

• Enhanced UART with automatic baud-rate

detection

• IrDA encoder and decoder

• Synchronous SPI

– eUSCI_B0

• Synchronous SPI

• I2C

• Flexible power management system

– Integrated LDO with 1.8-V regulated core

supply voltage

– Supply voltage monitor with programmable

level detection

– Brownout detector

– Built-in voltage reference

– Temperature sensor

• Clock system

– 16.384-MHz internal digitally controlled

oscillator (DCO)

– DCO operation with internal or external resistor

– External digital clock source

• Development tools and software (also see Tools

and Software)

– EVM430-I2040S evaluation module (EVM) for

metering

– MSP-TS430RHB32A 100-pin target

development board

– MSP430Ware™ code examples

• Wake up from standby mode in 1 μs

• 16-bit RISC architecture, up to 16.384-MHz

system clock

• Serial onboard programming, no external

programming voltage needed

• Available in 28-pin TSSOP (PW) and 32-pin VQFN

(RHB) packages

• Device Comparison summarizes the available

family members

• Featured software and reference designs

– Energy Measurement Design Center for

MSP430 MCUs application software and

frameworks

– Digital Signal Processing (DSP) Library for

MSP430 Microcontrollers software libraries

– Single Phase and DC Embedded Metering

reference design

– Three Output Smart Power Strip reference

design

2 Applications

• Metering

• Submetering

• Power monitoring and control

• Industrial sensors

• 1-phase AC and DC power monitoring

• 2-phase electronic meters

• Smart plugs

• Smart power strips

• Medical – multiple-parameter patient monitoring

3 Description

The Texas Instruments MSP430i204x, MSP430I203x and MSP430I202x microcontrollers (MCUs) are part of

the MSP430™ Metrology and Monitoring portfolio. The architecture and integrated peripherals, combined with

five extensive low-power modes, are optimized to achieve extended battery life in portable and battery-powered

measurement applications. The devices feature 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

devices to wake up from low-power modes to active mode in less than 5 μs.

The MSP430i204x MCUs include four high-performance 24-bit sigma-delta ADCs, two eUSCIs (one eUSCI_A

module and one eUSCI_B module), two 16-bit timers, a hardware multiplier, and up to 16 I/O pins.

The MSP430I203x MCUs include three high-performance 24-bit sigma-delta ADCs, two eUSCIs (one eUSCI_A

module and one eUSCI_B module), two 16-bit timers, a hardware multiplier, and up to 16 I/O pins.

The MSP430I202x MCUs include two high-performance 24-bit sigma-delta ADCs, two eUSCIs (one eUSCI_A

module and one eUSCI_B module), two 16-bit timers, a hardware multiplier, and up to 16 I/O pins.

Typical applications for these devices include energy measurement, analog and digital sensor systems, LED

lighting, digital power supplies, motor controls, remote controls, thermostats, digital timers, and hand-held

meters.

The MSP430i204x, MSP430I203x and MSP430I202x MCUs are supported by an extensive hardware and

software ecosystem with reference designs and code examples to get your design started quickly. Development

kits include the EVM430-I2040S evaluation module (EVM) for metering and the MSP-TS430RHB32A 100-pin

target development board. The Energy Measurement Design Center for MSP430 MCUs is provided as a rapid

development tool that enables energy measurement on these devices. TI also provides free MSP430Ware™

software, which is available as a component of Code Composer Studio™ IDE desktop and cloud versions within

TI Resource Explorer. The MSP430 MCUs are also supported by extensive online collateral, training, and online

support through the TI E2E™ support forums.

For complete module descriptions, see the MSP430i2xx Family User's Guide.