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MSP430F6438_V01

更新时间： 2024-09-25 02:46:39
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德州仪器 - TI 微控制器
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MSP430F643x Mixed-Signal Microcontrollers

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MSP430F6438, MSP430F6436, MSP430F6435, MSP430F6433  
SLAS720F – AUGUST 2010 – REVISED SEPTEMBER 2020  
MSP430F643x Mixed-Signal Microcontrollers  
•
Two universal serial communication interfaces  
(USCIs)  
1 Features  
•
•
Low supply voltage range: 1.8 V to 3.6 V  
Ultra-low power consumption  
– Active mode (AM):  
– USCI_A0 and USCI_A1 each support:  
•
Enhanced UART supports automatic baud-  
rate detection  
All system clocks active:  
270 µA/MHz at 8 MHz, 3.0 V, flash program  
execution (typical)  
•
•
IrDA encoder and decoder  
Synchronous SPI  
– USCI_B0 and USCI_B1 each support:  
– Standby mode (LPM3):  
•
•
I2C  
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  
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  
Integrated liquid crystal display (LCD) driver with  
contrast control for up to 160 segments  
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  
Table 6-1 summarizes the available family  
members  
•
Unified clock system  
– FLL control loop for frequency stabilization  
– Low-power low-frequency internal clock source  
(VLO)  
– Low-frequency trimmed internal reference  
source (REFO)  
2 Applications  
•
•
•
•
•
•
Analog and digital sensor systems  
Digital motor control  
Remote controls  
Thermostats  
Digital timers  
– 32-kHz crystals (XT1)  
– High-frequency crystals up to 32 MHz (XT2)  
Four 16-bit timers with 3, 5, or 7 capture/compare  
registers  
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 MSP430F643x 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,  
an LCD driver, and up to 74 I/O pins.  
For complete module descriptions, see the MSP430F5xx and MSP430F6xx Family User's Guide.  
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,  
intellectual property matters and other important disclaimers. PRODUCTION DATA.  
 
 
 
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