MSP430F4491
16 位超低功耗微处理器，具有 60kB 闪存、2048B RAM、比较器、2 个 USART、HW 乘法器和 160 段 LCD
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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- MSP430F449, 3:
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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 Users 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.