Overview
The Texas Instruments MSP430F149 is a member of the MSP430 family of ultra-low-power microcontrollers. This device is designed to optimize power consumption and achieve extended battery life in portable measurement applications. It features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that enhance code efficiency. The MSP430F149 also includes a digitally controlled oscillator (DCO) that allows for rapid wake-up from low-power modes to active mode in less than 6 µs.
Key Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Texas Instruments |
| Series | MSP430F149 |
| Package Type | VQFN (64 pins) |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Non-volatile Memory | 60 KB Flash, 256 Bytes |
| RAM | 2 KB |
| ADC | 12-bit, 8 channels |
| Timers | Two 16-bit timers (Timer_A and Timer_B) |
| USART | Two USARTs (USART0, USART1) |
| GPIO Pins | 48 |
| Active Power Consumption | 280 µA at 1 MHz, 2.2 V |
| Standby Power Consumption | 1.6 µA |
| Wakeup Time |
Key Features
- Low Supply Voltage Range: 1.8 V to 3.6 V
- Ultra-Low Power Consumption:
- Active Mode: 280 µA at 1 MHz, 2.2 V
- Standby Mode: 1.6 µA
- Off Mode (RAM Retention): 0.1 µA
- Five Power-Saving Modes
- 16-Bit RISC Architecture, 125-ns Instruction Cycle Time
- 12-Bit Analog-to-Digital Converter (ADC) With Internal Reference, Sample-and-Hold, and Autoscan Feature
- 16-Bit Timer_B With Seven Capture/Compare-With-Shadow Registers
- 16-Bit Timer_A With Three Capture/Compare Registers
- On-Chip Comparator
- Serial Onboard Programming, No External Programming Voltage Needed, Programmable Code Protection by Security Fuse
- Serial Communication Interface (USART), Functions as Asynchronous UART or Synchronous SPI Interface
- Hardware Multiplier
Applications
- Sensor Systems: Capturing analog signals, converting them to digital values, and processing and transmitting the data to a host system.
- Industrial Controls: Ideal for applications such as ripple counters, digital motor control, energy meters, and hand-held meters.
- Portable Measurement Applications: Optimized for extended battery life in devices like hand-held meters and other portable measurement tools.
Q & A
- What is the operating temperature range of the MSP430F149?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the MSP430F149?
The supply voltage range is 1.8 V to 3.6 V.
- How much non-volatile memory does the MSP430F149 have?
The device has 60 KB of Flash memory and 256 Bytes of additional memory.
- What type of ADC does the MSP430F149 feature?
The device features a 12-bit Analog-to-Digital Converter (ADC) with internal reference, sample-and-hold, and autoscan feature.
- How many USARTs are available on the MSP430F149?
The device has two USARTs (USART0 and USART1).
- What is the power consumption in active mode?
The active power consumption is 280 µA at 1 MHz, 2.2 V.
- How long does it take for the MSP430F149 to wake up from standby mode?
The wake-up time from standby mode is less than 6 µs.
- Does the MSP430F149 have any power-saving modes?
Yes, the device has five power-saving modes.
- What is the instruction cycle time of the MSP430F149's CPU?
The instruction cycle time is 125 ns.
- Is the MSP430F149 RoHS compliant?
Yes, the MSP430F149 is RoHS compliant.
