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DATA SHEET
MSP430F552x, MSP430F551x Mixed-Signal Microcontrollers
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 source (REFO)
- 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 supports automatic baud-rate detection
- IrDA encoder and decoder
- Synchronous SPI
- USCI_B0 and USCI_B1 each support:
- Full-speed universal serial bus (USB)
- Integrated USB-PHY
- Integrated 3.3-V and 1.8-V USB power system
- Integrated USB-PLL
- Eight input and eight output endpoints
- 12-bit analog-to-digital converter (ADC) (MSP430F552x only) with internal reference, sample-and-hold, and autoscan features
- Comparator
- Hardware multiplier supports 32-bit operations
- Serial onboard programming, no external programming voltage needed
- 3-channel internal DMA
- Basic timer with RTC feature
- Development tools and software (also see Tools and Software)
- Device Comparison summarizes the available family members
2 Applications
- Analog and digital sensor
systems
- Data loggers
- Connection to USB hosts
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