Overview
The Texas Instruments MSP430F1491IRTDR 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, 16-bit registers, and constant generators that enhance code efficiency. The MSP430F1491IRTDR 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 |
|---|---|
| Package | VQFNP (RTD) with 64 pins |
| Operating Temperature Range | -40°C to 85°C |
| Flash Memory | 60KB + 256 Bytes |
| SRAM | 2KB |
| Analog-to-Digital Converter (ADC) | 12-bit with internal reference, sample-and-hold, and autoscan feature |
| Timers | 16-Bit Timer_B with seven capture/compare-with-shadow registers, 16-Bit Timer_A with three capture/compare registers |
| USARTs | Two USARTs (USART0, USART1) functioning as asynchronous UART or synchronous SPI interface |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Power Consumption | Active Mode: 280 µA at 1 MHz, 2.2 V; Standby Mode: 1.6 µA; Off Mode (RAM Retention): 0.1 µA |
| Instruction Cycle Time | 125 ns |
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_B with seven capture/compare-with-shadow registers and 16-Bit Timer_A with three 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
- Wakeup from standby mode in less than 6 µs
Applications
- Sensor Systems
- Industrial Controls
- Hand-Held Meters
- Portable Measurement Applications
Q & A
- What is the package type of the MSP430F1491IRTDR?
The MSP430F1491IRTDR comes in a VQFNP (RTD) package with 64 pins.
- What is the operating temperature range of the MSP430F1491IRTDR?
The operating temperature range is -40°C to 85°C.
- How much flash memory and SRAM does the MSP430F1491IRTDR have?
The device has 60KB + 256 Bytes of flash memory and 2KB of SRAM.
- What are the key features of the ADC in the MSP430F1491IRTDR?
The ADC is a 12-bit converter with an internal reference, sample-and-hold, and autoscan feature.
- How many USARTs are available on the MSP430F1491IRTDR?
There are two USARTs (USART0, USART1) available.
- What is the supply voltage range for the MSP430F1491IRTDR?
The supply voltage range is 1.8 V to 3.6 V.
- What are the power consumption levels in different modes?
Active Mode: 280 µA at 1 MHz, 2.2 V; Standby Mode: 1.6 µA; Off Mode (RAM Retention): 0.1 µA.
- How quickly can the device wake up from standby mode?
The device can wake up from standby mode in less than 6 µs.
- What types of applications is the MSP430F1491IRTDR suitable for?
The device is suitable for sensor systems, industrial controls, hand-held meters, and portable measurement applications.
- Does the MSP430F1491IRTDR support serial onboard programming?
Yes, it supports serial onboard programming with no external programming voltage needed and programmable code protection by security fuse.
