Overview
The Texas Instruments MSP430F1481 is a member of the MSP430 family of ultra-low-power microcontrollers (MCUs). This device is designed to optimize power consumption, making it ideal for battery-powered and portable measurement applications. The MSP430F1481 features a powerful 16-bit RISC CPU, 16-bit registers, and constant generators that contribute to maximum code efficiency. The microcontroller also 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
| Specification | Value |
|---|---|
| Package | VQFN (RTD), 64 pins |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Flash Memory | 48 KB + 256 Bytes |
| RAM | 2 KB |
| 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) |
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 ADC with internal reference, sample-and-hold, and autoscan feature
- 16-bit Timer_A and Timer_B with multiple capture/compare registers
- On-chip comparator
- Serial onboard programming without external programming voltage, programmable code protection by security fuse
- Two USARTs (USART0, USART1) supporting asynchronous UART or synchronous SPI interface
- Hardware multiplier for enhanced performance
Applications
The MSP430F1481 is suitable for a variety of applications that require low power consumption and high performance. These include:
- Battery-powered devices and portable measurement applications
- Industrial automation and control systems
- Medical devices and health monitoring systems
- Consumer electronics requiring low power and high efficiency
- Sensor networks and IoT devices
Q & A
- What is the operating temperature range of the MSP430F1481?
The operating temperature range is -40°C to 85°C. - How much flash memory and RAM does the MSP430F1481 have?
The MSP430F1481 has 48 KB + 256 Bytes of flash memory and 2 KB of RAM. - What are the power consumption levels in different modes?
The power consumption is 280 µA in active mode at 1 MHz, 2.2 V, 1.6 µA in standby mode, and 0.1 µA in off mode (RAM retention). - Does the MSP430F1481 support serial communication interfaces?
Yes, it supports two USARTs (USART0, USART1) that can function as asynchronous UART or synchronous SPI interfaces. - What is the instruction cycle time of the MSP430F1481?
The instruction cycle time is 125 ns. - Does the MSP430F1481 have any built-in timers?
Yes, it has a 16-bit Timer_A with three capture/compare registers and a 16-bit Timer_B with seven capture/compare-with-shadow registers. - How many power-saving modes does the MSP430F1481 have?
The MSP430F1481 has five power-saving modes. - Can the MSP430F1481 be programmed onboard without an external programming voltage?
Yes, it supports serial onboard programming without an external programming voltage. - What type of ADC does the MSP430F1481 have?
The MSP430F1481 has a 12-bit ADC with an internal reference, sample-and-hold, and autoscan feature. - Is there a hardware multiplier in the MSP430F1481?
Yes, the MSP430F1481 includes a hardware multiplier for enhanced performance.
