Overview
The Texas Instruments MSP430F149 is a member of the MSP430 family of ultra-low-power microcontrollers (MCUs). This device is designed to optimize power consumption and extend battery life in portable measurement applications. It features a powerful 16-bit RISC CPU with 16-bit registers and constant generators, ensuring maximum code efficiency. The MSP430F149 includes a digitally controlled oscillator (DCO) that allows for quick wake-up from low-power modes to active mode in less than 6 µs.
Key Specifications
| Parameter | Value |
|---|---|
| Flash Memory | 60 KB + 256 Bytes |
| RAM | 2 KB |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Operating Temperature Range | -40°C to 85°C |
| Active Mode Power Consumption | 280 µA at 1 MHz, 2.2 V |
| Standby Mode Power Consumption | 1.6 µA |
| Off Mode (RAM Retention) Power Consumption | 0.1 µA |
| Instruction Cycle Time | 125 ns |
| Analog-to-Digital Converter (ADC) | 12-bit with internal reference, sample-and-hold, and autoscan feature |
| Timers | 16-bit Timer_A with three capture/compare registers, 16-bit Timer_B with seven capture/compare-with-shadow registers |
| USARTs | Two USARTs (USART0, USART1) functioning as asynchronous UART or synchronous SPI interface |
| Package Options | LQFP (64 pins), TQFP (64 pins), VQFN (64 pins) |
Key Features
- Low Supply Voltage Range: 1.8 V to 3.6 V
- Ultra-Low Power Consumption with five power-saving modes
- 16-Bit RISC Architecture with 125-ns instruction cycle time
- 12-Bit Analog-to-Digital Converter (ADC) with internal reference, sample-and-hold, and autoscan feature
- 16-Bit Timer_A and Timer_B with capture/compare registers
- On-Chip Comparator
- Serial Onboard Programming with no external programming voltage needed and programmable code protection by security fuse
- Serial Communication Interface (USART) functioning as asynchronous UART or synchronous SPI interface
- Quick wake-up from low-power modes to active mode in less than 6 µs using the digitally controlled oscillator (DCO)
Applications
- Sensor Systems
- Industrial Controls
- Hand-Held Meters
- Portable Measurement Applications
Q & A
- What is the flash memory capacity of the MSP430F149?
The MSP430F149 has 60 KB of flash memory plus an additional 256 bytes.
- What is the RAM capacity of the MSP430F149?
The MSP430F149 has 2 KB of RAM.
- What is the operating temperature range of the MSP430F149?
The operating temperature range is -40°C to 85°C.
- How much power does the MSP430F149 consume in active mode?
In active mode, the MSP430F149 consumes 280 µA at 1 MHz and 2.2 V.
- What types of timers are available on the MSP430F149?
The MSP430F149 features a 16-bit Timer_A with three capture/compare registers and a 16-bit Timer_B with seven capture/compare-with-shadow registers.
- Does the MSP430F149 support serial communication interfaces?
Yes, the MSP430F149 supports two USARTs (USART0, USART1) that can function as asynchronous UART or synchronous SPI interfaces.
- How quickly can the MSP430F149 wake up from standby mode?
The MSP430F149 can wake up from standby mode to active mode in less than 6 µs using the digitally controlled oscillator (DCO).
- What is the resolution of the Analog-to-Digital Converter (ADC) on the MSP430F149?
The ADC on the MSP430F149 is a 12-bit converter with an internal reference, sample-and-hold, and autoscan feature.
- Does the MSP430F149 have on-chip programming capabilities?
Yes, the MSP430F149 supports serial onboard programming without the need for an external programming voltage, and it includes programmable code protection by security fuse.
- What are some common applications for the MSP430F149?
The MSP430F149 is commonly used in sensor systems, industrial controls, hand-held meters, and other portable measurement applications.
