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### MSP430F673x：混合信号微控制器的深入解析 #### 一、产品概述 MSP430F673x是德州仪器（TI）推出的一款高性能混合信号微控制器，专为低功耗应用设计。该系列微控制器在保持高效能的同时，实现了超低功耗，适用于各种电池供电的设备，如智能仪表、医疗设备、工业传感器等。 #### 二、关键特性详解 ##### 1. 低供电电压范围：1.8V至3.6V MSP430F673x能够在较低的电压范围内运行，这不仅拓宽了其在不同电源环境下的适用性，还进一步降低了功耗，延长了设备的电池寿命。 ##### 2. 三个16位定时器，每个带有两个捕获/比较寄存器这一特性使得MSP430F673x能够支持复杂的时间管理和脉冲宽度调制（PWM）功能，适用于电机控制、信号处理等多种场景。 ##### 3. 超低功耗消耗 - **活动模式（AM）**：在全系统时钟激活的情况下，MSP430F673x在8MHz、3.0V下仅消耗265μA/MHz，在闪存程序执行状态下，典型值可降至140μA/MHz。 - **待机模式（LPM3）**：仅保留实时时钟、看门狗和电源监视器功能，以及快速唤醒能力，此时功耗降至1.7μA（2.2V）或2.5μA（3.0V）。 - **关机模式（LPM4）**：在保持内存和电源监视器操作的同时实现快速唤醒，功耗低至1.6μA（3.0V）。 - **RTC关机模式（LPM3.5）**：仅保留实时时钟功能，功耗仅为1.24μA（3.0V）。 - **深度关机模式（LPM4.5）**：最低功耗状态，仅为0.78μA（3.0V）。 ##### 4. 增强型通用串行通信接口（eUSCI） MSP430F673x配备了三个增强型通用串行通信接口，分别标记为eUSCI_A0、eUSCI_A1和eUSCI_A2，支持多种通信协议，包括： - **增强型UART**：具备自动波特率检测功能，支持红外数据编码和解码。 - **同步SPI**：用于高速数据传输。 - **eUSCI_B0**：支持I²C总线，兼容多从机地址，适用于同步SPI模式。 ##### 5. 密码保护的实时时钟与温度补偿功能实时时钟支持密码保护，提供晶体偏移校准和温度补偿，确保时间的准确性和稳定性。 ##### 6. 灵活的电源管理系统包括完全集成的低压差稳压器（LDO）、可编程的内核供电电压、电压监控和欠压保护，以及对高达两个辅助电源的支持，确保了系统的稳定性和可靠性。 ##### 7. 三个24位Σ-Δ模拟到数字转换器（ADC）这些ADC拥有差分PGA输入，适合高精度的信号采集和处理。 ##### 8. 集成LCD驱动器支持多达320段的LCD显示，具备对比度控制功能，优化了人机交互界面的设计。 ##### 9. 16位RISC架构，最高25MHz系统时钟结合硬件乘法器，支持32位运算，提高了处理速度和效率。 ##### 10. 统一的时钟系统与三通道内部DMA 简化了时钟管理，提升了数据传输的灵活性和效率。 #### 三、应用场景 MSP430F673x凭借其低功耗、高性能和丰富的外设接口，广泛应用于物联网、智能家居、医疗健康监测、环境监测等领域，特别是在需要长时间工作且电源有限的场景下表现出色。 MSP430F673x是一款集低功耗、高性能和多功能于一体的混合信号微控制器，其独特的设计使其成为许多低功耗应用的理想选择。

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MSP430F673x

MSP430F672x

www.ti.com

SLAS731A –DECEMBER 2011–REVISED APRIL 2012

MIXED SIGNAL MICROCONTROLLER

FEATURES

• Low Supply Voltage Range: 1.8 V to 3.6 V

• Three 16-Bit Timers With Two

Capture/Compare Registers Each

• Ultra-Low Power Consumption

• Enhanced Universal Serial Communication

– Active Mode (AM):

Interfaces

All System Clocks Active

265 µA/MHz at 8 MHz, 3.0 V, Flash Program – eUSCI_A0, eUSCI_A1, and eUSCI_A2 Each

Execution (Typical) Support:

140 µA/MHz at 8 MHz, 3.0 V, RAM Program

– Enhanced UART Supporting Auto-

Execution (Typical)

Baudrate Detection

– Standby Mode (LPM3):

– IrDA Encoder and Decoder

Real-Time Clock With Crystal, Watchdog,

– Synchronous SPI

and Supply Supervisor Operational, Full

– eUSCI_B0 Supports:

RAM Retention, Fast Wake-Up:

– I

C With Multi-Slave Addressing

1.7 µA at 2.2 V, 2.5 µA at 3.0 V (Typical)

– Synchronous SPI

– Off Mode (LPM4):

Full RAM Retention, Supply Supervisor • Password-Protected Real-Time Clock With

Operational, Fast Wake-Up: Crystal Offset Calibration and Temperature

1.6 µA at 3.0 V (Typical) Compensation

– Shutdown RTC Mode (LPM3.5): • Separate Voltage Supply for Backup

Shutdown mode, Active Real Time Clock Subsystem

with Crystal:

– 32-kHz Low-Frequency Oscillator (XT1)

1.24 µA at 3.0 V (Typical)

– Real-Time Clock

– Shutdown Mode (LPM4.5):

– Backup Memory (4 x 16 Bits)

0.78 µA at 3.0 V (Typical)

• Three 24-Bit Sigma-Delta Analog-to-Digital

• Wake-Up From Standby Mode in 3 µs (Typical)

(A/D) Converters With Differential PGA Inputs

• 16-Bit RISC Architecture, Extended Memory,

• Integrated LCD Driver With Contrast Control

up to 25-MHz System Clock

for up to 320 Segments in 8-Mux Mode

• Flexible Power Management System

• Hardware Multiplier Supports 32-Bit

– Fully Integrated LDO With Programmable

Operations

Regulated Core Supply Voltage

• 10-Bit 200-ksps A/D Converter

– Supply Voltage Supervision, Monitoring,

– Internal Reference

and Brownout

– Sample-and-Hold, Autoscan Feature

– System Operation From up to Two Auxiliary

– Up to Six External Channels, Two Internal

Power Supplies

Channels, Including Temperature Sensor

• Unified Clock System

• Three-Channel Internal DMA

– FLL Control Loop for Frequency

• Serial Onboard Programming, No External

Stabilization

Programming Voltage Needed

– Low-Power Low-Frequency Internal Clock

• Family Members are Summarized in Table 1

Source (VLO)

• Available in 100-Pin and 80-Pin LQFP

– Low-Frequency Trimmed Internal Reference

Packages

Source (REFO)

• For Complete Module Descriptions, See the

– 32-kHz Crystals (XT1)

MSP430x5xx and MSP430x6xx Family User's

• One 16-Bit Timer With Three Capture/Compare

Guide (SLAU208)

Registers

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.

C is a trademark of others.

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.

MSP430F673x

MSP430F672x

SLAS731A –DECEMBER 2011–REVISED APRIL 2012

www.ti.com

DESCRIPTION

The Texas Instruments MSP430 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 digitally controlled oscillator (DCO) allows wake-up from low-power modes to active mode in 3 µs

(typical).

The MSP430F67xx series are microcontroller configurations with three high-performance 24-bit sigma-delta A/D

converters, a 10-bit analog-to-digital (A/D) converter, four enhanced universal serial communication interfaces

(three eUSCI_A and one eUSCI_B), four 16-bit timers, hardware multiplier, DMA, real-time clock module with

alarm capabilities, LCD driver with integrated contrast control, auxiliary supply system, and up to 72 I/O pins in

100-pin devices and 52 I/O pins in 80-pin devices.

Typical applications for these devices are 2-wire and 3-wire single-phase metering, including tamper-resistant

meter implementations.

Family members available are summarized in Table 1.

Table 1. Family Members

eUSCI

Flash SRAM SD24_B ADC10_A Package

Channel A: Channel B:

Device Timer_A

(1)

I/O

(KB) (KB) Converters Channels Type

UART, IrDA,

SPI, I

SPI

MSP430F6736IPZ 128 8 3 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6735IPZ 128 4 3 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6734IPZ 96 4 3 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6733IPZ 64 4 3 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6731IPZ 32 2 3 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6730IPZ 16 1 3 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6726IPZ 128 8 2 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6725IPZ 128 4 2 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6724IPZ 96 4 2 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6723IPZ 64 4 2 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6721IPZ 32 2 2 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6720IPZ 16 1 2 6 ext, 2 int 3, 2, 2, 2 3 1 72 100 PZ

MSP430F6736IPN 128 8 3 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6735IPN 128 4 3 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6734IPN 96 4 3 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6733IPN 64 4 3 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6731IPN 32 2 3 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6730IPN 16 1 3 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6726IPN 128 8 2 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6725IPN 128 4 2 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6724IPN 96 4 2 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6723IPN 64 4 2 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6721IPN 32 2 2 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

MSP430F6720IPN 16 1 2 3 ext, 2 int 3, 2, 2, 2 3 1 52 80 PN

(1) Each number in the sequence represents an instantiation of Timer_A with its associated number of capture compare registers and PWM

output generators available. For example, a number sequence of 3, 5 would represent two instantiations of Timer_A, the first

instantiation having 3 and the second instantiation having 5 capture compare registers and PWM output generators, respectively.

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