MSP430F643x
www.ti.com
SLAS720B –AUGUST 2010–REVISED AUGUST 2012
MIXED SIGNAL MICROCONTROLLER
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FEATURES
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Low Supply Voltage Range: 1.8 V to 3.6 V
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Four 16-Bit Timer With 3, 5, or 7
Capture/Compare Registers
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Ultralow Power Consumption
Two Universal Serial Communication
Interfaces
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Active Mode (AM):
All System Clocks Active:
270 µA/MHz at 8 MHz, 3.0 V, Flash Program
Execution (Typical)
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USCI_A0 and USCI_A1 Each Support:
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Enhanced UART Supports Auto-
Baudrate Detection
Standby Mode (LPM3):
Watchdog With Crystal, and Supply
Supervisor Operational, Full RAM
Retention, Fast Wake-Up:
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IrDA Encoder and Decoder
Synchronous SPI
USCI_B0 and USCI_B1 Each Support:
1.8 µA at 2.2 V, 2.1 µA at 3.0 V (Typical)
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I2CTM
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Shutdown RTC Mode (LPM3.5):
Shutdown Mode, Active Real-Time Clock
With Crystal:
Synchronous SPI
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Integrated 3.3-V Power System
1.1 µA at 3.0 V (Typical)
12-Bit Analog-to-Digital (A/D) Converter With
Internal Shared Reference, Sample-and-Hold,
and Autoscan Feature
Shutdown Mode (LPM4.5):
0.3 µA at 3.0 V (Typical)
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Wake-Up From Standby Mode in 3 µs (Typical)
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Dual 12-Bit Digital-to-Analog (D/A) Converters
With Synchronization
16-Bit RISC Architecture, Extended Memory,
up to 20-MHz System Clock
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Voltage Comparator
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Flexible Power Management System
Integrated LCD Driver With Contrast Control
for up to 160 Segments
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Fully Integrated LDO With Programmable
Regulated Core Supply Voltage
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Hardware Multiplier Supporting 32-Bit
Operations
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Supply Voltage Supervision, Monitoring,
and Brownout
Serial Onboard Programming, No External
Programming Voltage Needed
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Unified Clock System
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Six-Channel Internal DMA
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FLL Control Loop for Frequency
Stabilization
Real-Time Clock Module With Supply Voltage
Backup Switch
Low-Power Low-Frequency Internal Clock
Source (VLO)
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Family Members are Summarized in Table 1
Low-Frequency Trimmed Internal Reference
Source (REFO)
For Complete Module Descriptions, See the
MSP430x5xx and MSP430x6xx Family User's
Guide (SLAU208)
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32-kHz Crystals (XT1)
High-Frequency Crystals Up to 32 MHz
(XT2)
DESCRIPTION
The Texas Instruments MSP430 family of ultralow-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 wake-up from low-power modes to active mode in 3 µs (typical).
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Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
Copyright © 2010–2012, Texas Instruments Incorporated