Overview
The Texas Instruments MSP430G2755IRHA40R 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
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Series | MSP430G2x55 |
| Part Number | MSP430G2755IRHA40R |
| Package Type | VQFN-40 |
| Number of Pins | 40 |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Maximum Clock Frequency | 16 MHz |
| Data Bus Width | 16 bit |
| Program Memory Size | 32 kB |
| RAM Size | 4 kB |
| Number of I/Os | 32 |
| Number of Timers/Counters | 3 |
| ADC Resolution | 10 bit |
| Number of ADC Channels | 12 |
| Communication Interfaces | I2C, IrDA, LIN, SCI, SPI, UART, USART |
| Power Consumption (Active Mode) | 250 µA at 1 MHz, 2.2 V |
| Power Consumption (Standby Mode) | 0.7 µA |
| Power Consumption (Off Mode with RAM Retention) | 0.1 µA |
Key Features
- Ultra-low power consumption with five power-saving modes
- 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 32-kHz crystal
- High-frequency (HF) crystal up to 16 MHz and external digital clock source
- Two 16-bit Timer_A with three capture/compare registers and one 16-bit Timer_B with three capture/compare registers
- Up to 32 touch-sense-enabled I/O pins
- Universal Serial Communication Interface (USCI) supporting UART, IrDA, LIN, SPI, and I2C
- 10-bit 200-ksps Analog-to-Digital (A/D) Converter with internal reference, sample-and-hold, and autoscan
- Brownout detector and serial onboard programming without external programming voltage
- Programmable code protection by security fuse and bootstrap loader
- On-chip emulation logic and watchdog timer
Applications
The MSP430G2755IRHA40R 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 ultra-low power consumption is critical.
Q & A
- What is the operating temperature range of the MSP430G2755IRHA40R?
The operating temperature range is -40°C to 85°C.
- What is the maximum clock frequency of the MSP430G2755IRHA40R?
The maximum clock frequency is 16 MHz.
- How much power does the MSP430G2755IRHA40R consume in active mode?
In active mode, it consumes 250 µA at 1 MHz, 2.2 V.
- What communication interfaces does the MSP430G2755IRHA40R support?
The device supports I2C, IrDA, LIN, SCI, SPI, UART, and USART.
- How many I/O pins does the MSP430G2755IRHA40R have?
The device has up to 32 I/O pins, which are touch-sense-enabled.
- What is the resolution of the Analog-to-Digital Converter (ADC) in the MSP430G2755IRHA40R?
The ADC resolution is 10 bits.
- Does the MSP430G2755IRHA40R have a watchdog timer?
No, it does not have a watchdog timer.
- What is the program memory size of the MSP430G2755IRHA40R?
The program memory size is 32 kB.
- How many ADC channels does the MSP430G2755IRHA40R have?
The device has 12 ADC channels.
- What is the wake-up time from standby mode for the MSP430G2755IRHA40R?
The wake-up time from standby mode is less than 1 µs.
- Is the MSP430G2755IRHA40R RoHS compliant?
