Overview
The Texas Instruments MSP430G2755IRHA40T is an ultra-low-power mixed signal microcontroller from the MSP430G2x55 series. 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 contribute to maximum code efficiency. The microcontroller includes built-in 16-bit timers, up to 32 I/O touch-sense-enabled pins, a versatile analog comparator, and built-in communication capability using the universal serial communication interface (USCI).
Key Specifications
| Specification | Value |
|---|---|
| Package | 40-Pin QFN (RHA) |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Active Mode Power Consumption | 250 µA at 1 MHz, 2.2 V |
| Standby Mode Power Consumption | 0.7 µA |
| Off Mode (RAM Retention) Power Consumption | 0.1 µA |
| Instruction Cycle Time | 62.5 ns |
| Internal Frequencies | Up to 16 MHz |
| Number of 16-Bit Timers | 3 (Timer_A and Timer_B) |
| Analog-to-Digital Converter (ADC) | 10-Bit, 200-ksps |
| Memory | 4kB SRAM |
Key Features
- Ultra-low power consumption with five power-saving modes
- Ultra-fast wake-up from standby mode in less than 1 µs
- 16-bit RISC architecture with 62.5-ns instruction cycle time
- Internal frequencies up to 16 MHz with four calibrated frequencies
- Internal very-low-power low-frequency (LF) oscillator and high-frequency (HF) crystal up to 16 MHz
- Universal Serial Communication Interface (USCI) supporting UART, SPI, and I2C™
- Enhanced UART with auto baudrate detection (LIN) and IrDA encoder and decoder
- Up to 32 touch-sense-enabled I/O pins
- On-chip comparator for analog signal compare function or slope analog-to-digital (A/D) conversion
- 10-bit 200-ksps analog-to-digital (A/D) converter with internal reference, sample-and-hold, and autoscan
- Brownout detector and serial onboard programming with programmable code protection by security fuse
Applications
The MSP430G2755IRHA40T is typically used in low-cost sensor systems that capture analog signals, convert them to digital values, and then process the data for display or transmission to a host system. Other applications include portable measurement devices, energy harvesting systems, and other battery-powered devices where low power consumption is critical.
Q & A
- What is the operating temperature range of the MSP430G2755IRHA40T?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the MSP430G2755IRHA40T?
The supply voltage range is 1.8 V to 3.6 V.
- How many power-saving modes does the MSP430G2755IRHA40T have?
The device has five power-saving modes.
- What is the instruction cycle time of the MSP430G2755IRHA40T?
The instruction cycle time is 62.5 ns.
- What types of communication interfaces does the MSP430G2755IRHA40T support?
The device supports UART, SPI, and I2C™ through the Universal Serial Communication Interface (USCI).
- How many touch-sense-enabled I/O pins does the MSP430G2755IRHA40T have?
The device has up to 32 touch-sense-enabled I/O pins.
- What is the resolution and sampling rate of the analog-to-digital converter (ADC)?
The ADC is 10-bit with a sampling rate of 200 ksps.
- Does the MSP430G2755IRHA40T support serial onboard programming?
- What is the typical application of the MSP430G2755IRHA40T?
- How much SRAM does the MSP430G2755IRHA40T have?
