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MSP430F5438A-ET

更新时间： 2024-11-22 02:58:35
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德州仪器 - TI /
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118页 3098K
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MSP430F5438A-ET Mixed-Signal Controller

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MSP430F5438A-ET 数据手册

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MSP430F5438A, MSP430F5437A, MSP430F5436A, MSP430F5435A, MSP430F5419A,  
MSP430F5418A  
SLAS655G – JANUARY 2010 – REVISED SEPTEMBER 2020  
MSP430F543xA, MSP430F541xA Mixed-Signal Microcontrollers  
– High-frequency crystals up to 32 MHz  
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 TB0, Timer_B with seven capture/  
compare shadow registers  
Up to four universal serial communication  
interfaces (USCIs)  
– USCI_A0, USCI_A1, USCI_A2, and USCI_A3  
each support:  
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  
230 µA/MHz at 8 MHz, 3.0 V, flash program  
execution (typical)  
110 µA/MHz at 8 MHz, 3.0 V, RAM program  
execution (typical)  
– Standby mode (LPM3):  
•
Enhanced UART supports automatic baud-  
rate detection  
real-time clock (RTC) with crystal, watchdog,  
and supply supervisor operational, full RAM  
retention, fast wakeup:  
1.7 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:  
1.2 µA at 3.0 V (typical)  
•
•
IrDA encoder and decoder  
Synchronous SPI  
– USCI_B0, USCI_B1, USCI_B2, and USCI_B3  
each support:  
•
•
I2C  
Synchronous SPI  
– Off mode (LPM4):  
•
12-bit analog-to-digital converter (ADC)  
– Internal reference  
– Sample-and-hold  
full RAM retention, supply supervisor  
operational, fast wakeup:  
1.2 µA at 3.0 V (typical)  
– Autoscan feature  
– Shutdown mode (LPM4.5):  
0.1 µA at 3.0 V (typical)  
Wake up from standby mode in 3.5 µs (typical)  
16-bit RISC architecture  
– 14 external channels, 2 internal channels  
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 available  
family members  
•
•
•
•
– 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  
•
•
2 Applications  
•
•
•
•
•
•
Analog and Digital Sensor Systems  
Digital Motor Controls  
Remote Controls  
Thermostats  
Digital Timers  
Unified clock system  
– FLL control loop for frequency stabilization  
– Low-power low-frequency internal clock source  
(VLO)  
– Low-frequency trimmed internal reference  
source (REFO)  
Hand-Held Meters  
– 32-kHz crystals  
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  
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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