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.