1 Features

• Low supply voltage range: 1.8 V to 3.6 V

• Ultra-low power consumption

– Active mode (AM):

All system clocks active:

270 μA/MHz at 8 MHz, 3.0 V, flash program

execution (typical)

– Standby mode (LPM3):

Watchdog with crystal and supply supervisor

operational, full RAM retention, fast wakeup:

1.8 μA at 2.2 V, 2.1 μA at 3.0 V (typical)

– Shutdown real-time clock (RTC) mode

(LPM3.5):

Shutdown mode, active RTC with crystal:

1.1 μA at 3.0 V (typical)

– Shutdown mode (LPM4.5):

0.3 μA at 3.0 V (typical)

• Wake up from standby mode in 3 μs (typical)

• 16-bit RISC architecture, extended memory, up to

20-MHz system clock

• Flexible power-management system

– Fully integrated LDO with programmable

regulated core supply voltage

– Supply voltage supervision, monitoring, and

brownout

• Unified clock system

– FLL control loop for frequency stabilization

– Low-power low-frequency internal clock source

(VLO)

– Low-frequency trimmed internal reference

source (REFO)

– 32-kHz crystals (XT1)

– High-frequency crystals up to 32 MHz (XT2)

• Four 16-bit timers with 3, 5, or 7 capture/compare

registers

• Two universal serial communication interfaces

(USCIs)

– USCI_A0 and USCI_A1 each support:

• Enhanced UART supports automatic baudrate

detection

• IrDA encoder and decoder

• Synchronous SPI

– USCI_B0 and USCI_B1 each support:

• I2C

• Synchronous SPI

• Integrated 3.3-V power system

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

internal shared reference, sample-and-hold, and

autoscan feature

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

with synchronization

• Voltage comparator

• Hardware multiplier supports 32-bit operations

• Serial onboard programming, no external

programming voltage needed

• 6-channel internal DMA

• RTC module with supply voltage backup switch

• Device Comparison summarizes the available

family members

2 Applications

• Analog and digital sensor systems

• Digital motor control

• Remote controls

• Thermostats

• Digital timers

• Hand-held meters

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 low-power modes to active mode in 3 μs

(typical).

The MSP430F533x devices are microcontrollers with an integrated 3.3-V LDO, a high-performance 12-bit ADC,

a comparator, two USCIs, a hardware multiplier, DMA, four 16-bit timers, an RTC module with alarm capabilities,

and up to 74 I/O pins.

For complete module descriptions, see the MSP430F5xx and MSP430F6xx Family User's Guide.