1 Features

• Low supply-voltage range:

3.6 V down to 1.8 V

• Ultra-low power consumption

– Active mode (AM):

all system clocks active

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

execution (typical)

150 μA/MHz at 8 MHz, 3.0 V, RAM program

execution (typical)

– Standby mode (LPM3):

real-time clock (RTC) with crystal, watchdog,

and supply supervisor operational, full RAM

retention, fast wakeup:

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

low-power oscillator (VLO), general-purpose

counter, watchdog, and supply supervisor

operational, full RAM retention, fast wakeup:

1.4 μA at 3.0 V (typical)

– Off mode (LPM4):

full RAM retention, supply supervisor

operational, fast wakeup:

1.1 μA at 3.0 V (typical)

– Shutdown mode (LPM4.5):

0.18 μA at 3.0 V (Typical)

• Wake up from standby mode in 3.5 μs (typical)

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

25-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

– 32-kHz watch crystals (XT1)

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

• 16-bit timer TA0, Timer_A with five capture/

compare registers

• 16-bit timer TA1, Timer_A with three capture/

compare registers

• 16-bit timer TA2, Timer_A with three capture/

compare registers

• 16-bit timer TB0, Timer_B with seven capture/

compare shadow registers

• Two universal serial communication interfaces

(USCIs)

– USCI_A0 and USCI_A1 each support:

• Enhanced UART with automatic baud-rate

detection

• IrDA encoder and decoder

• Synchronous SPI

– USCI_B0 and USCI_B1 each support:

• I2C

• Synchronous SPI

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

internal reference, sample-and-hold

• Comparator

• Hardware multiplier supports 32-bit operations

• Serial onboard programming, no external

programming voltage needed

• 3-channel internal DMA

• Basic timer with RTC feature

• Device Comparison summarizes the family

members

2 Applications

• Analog Sensor Systems

• Digital Sensor Systems

• Data Loggers

• General-Purpose Applications

3 Description

The TI MSP family of ultra-low-power microcontrollers consists of several devices featuring different sets of

peripherals targeted for various applications. The architecture, combined with extensive 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 3.5 μs

(typical).

The MSP430F524x series are microcontroller configurations with four 16-bit timers, a high-performance 10-bit

ADC, two USCIs, a hardware multiplier, DMA, a comparator, and an RTC module with alarm capabilities.

The MSP430F523x series microcontrollers include all of the peripherals of the MSP430F524x series except for

the ADC.

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