MSP430F449

具有 60kB 闪存、2048B RAM、12 位 ADC、2 个 USART、HW 乘法器和 160 段 LCD 的 16 位超低功耗微处理器

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 devices feature 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 less than

6 µs.

The MSP430x43x1 and the MSP430x44x1 series are microcontroller configurations with two built-in 16-bit timers, a fast 12-bit A/D converter not implemented on the MSP430F43x1 and MSP430F44x1 devices, one or two universal serial synchronous/asynchronous communication interfaces USART, 48 I/O pins, and a liquid crystal driver LCD with up to 160 segments.

Typical applications include sensor systems that capture analog signals, convert them to digital values, and process and transmit the data to a host system, or process this data and display it on a LCD panel. The timers make the configurations ideal for industrial control applications such as ripple counters, digital motor control, EE-meters, hand-held meters, etc. The hardware multiplier enhances the performance and offers a broad code and hardware-compatible family solution.

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Low Supply-Voltage Range, 1.8 V to 3.6 V

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Ultralow-Power Consumption:

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Active Mode: 280 µA at 1 MHz, 2.2 V

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Standby Mode: 1.1 µA

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Off Mode RAM Retention: 0.1 µA

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Five Power Saving Modes

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Wake-Up From Standby Mode in Less Than 6 µs

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16-Bit RISC Architecture, 125-ns Instruction Cycle Time

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12-Bit A/D Converter With Internal Reference, Sample-and-Hold and

Autoscan Feature

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16-Bit Timer_B With Three1 or Seven2 Capture/Compare-With-Shadow Registers

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16-Bit Timer_A With Three Capture/Compare Registers

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On-Chip Comparator

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Serial Communication Interface USART, Select Asynchronous UART or

Synchronous SPI by Software:

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Two USARTs USART0, USART11

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One USART USART02

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Brownout Detector

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Supply Voltage Supervisor/Monitor With Programmable Level Detection

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Serial Onboard Programming, No External Programming Voltage Needed

Programmable Code Protection by Security Fuse

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Integrated LCD Driver for up to 160 Segments

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Bootstrap Loader

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Family Members Include:

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MSP430F435, MSP430F43513:

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16KB+256B Flash Memory

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512B RAM

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MSP430F436, MSP430F43613:

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24KB+256B Flash Memory

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1KB RAM

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MSP430F437, MSP430F43713:

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32KB+256B Flash Memory

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1KB RAM

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MSP430F447:

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32KB+256B Flash Memory

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1KB RAM

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MSP430F448, MSP430F44813:

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48KB+256B Flash Memory

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2KB RAM

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, MSP430F44913:

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60KB+256B Flash Memory

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2KB RAM

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For Complete Module Descriptions, See The _MSP430x4xx Family User’s Guide_, Literature Number SLAU056

1 MSP430F43x, and MSP430F43x1 devices

2 MSP430F44x, and MSP430F44x1 devices

3 The MSP430F43x1 and MSP430F44x1 devices are identical to the MSP430F43x and MSP430F44x devices, respectively – with the exception that the ADC12 module is not implemented.