Overview
The Texas Instruments MSP430F149CY 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 MSP430F149CY supports various peripherals, including two built-in 16-bit timers, a fast 12-bit analog-to-digital converter (ADC), and two serial communication interfaces (USARTs) that can function as asynchronous UART or synchronous SPI interfaces.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor Series | MSP430x14x |
| Flash Memory | 60KB + 256 Bytes |
| RAM | 2KB |
| 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 |
| ADC | 12-Bit, 8 Channels, Internal Reference, Sample-and-Hold, 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), Asynchronous UART or Synchronous SPI Interface |
| Package | 64-Pin TQFP (PAG) |
| Operating Temperature Range | -40°C to 85°C |
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 and hardware multiplier
- 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
- Wakeup from standby mode in less than 6 µs
Applications
- Sensor Systems
- Industrial Controls
- Hand-Held Meters
- Utility Metering
- Portable Instrumentation
- Intelligent Sensing
- Gas Meter, Blood Pressure Meter, Air Conditioning, Water Meter, etc.
Q & A
- What is the supply voltage range of the MSP430F149CY?
The supply voltage range is 1.8 V to 3.6 V.
- How much power does the MSP430F149CY consume in active mode?
In active mode, it consumes 280 µA at 1 MHz, 2.2 V.
- What is the instruction cycle time of the MSP430F149CY?
The instruction cycle time is 125 ns.
- How many USARTs does the MSP430F149CY have?
The MSP430F149CY has two USARTs (USART0, USART1).
- What types of timers are available on the MSP430F149CY?
It features a 16-Bit Timer_B with seven capture/compare-with-shadow registers and a 16-Bit Timer_A with three capture/compare registers.
- Does the MSP430F149CY have an on-chip comparator?
Yes, it has an on-chip comparator.
- How quickly can the MSP430F149CY wake up from standby mode?
The device can wake up from standby mode in less than 6 µs.
- What is the package type and pin count of the MSP430F149CY?
The package type is 64-Pin TQFP (PAG).
- What is the operating temperature range of the MSP430F149CY?
The operating temperature range is -40°C to 85°C.
- What are some typical applications of the MSP430F149CY?
Typical applications include sensor systems, industrial controls, hand-held meters, utility metering, and portable instrumentation.
