Overview
The Texas Instruments MSP430G2955IDA38R is a member of the MSP430 family of ultra-low-power microcontrollers. 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 MSP430G2955 is part of the MSP430G2x55 series, which includes various peripherals targeted for different applications.
Key Specifications
| Parameter | Specification |
|---|---|
| Package | TSSOP (DA) - 38 pins |
| Operating Temperature Range | -40°C to 85°C |
| Supply Voltage Range | 1.8 V to 3.6 V |
| Flash Memory | 56 KB |
| SRAM | 2 KB |
| ADC Resolution | 10-bit, 200 ksps |
| Timers | Two 16-bit Timer_A, One 16-bit Timer_B |
| I/O Pins | Up to 32 touch-sense-enabled I/O pins |
| Communication Interfaces | UART, SPI, I2C, IrDA |
| Power Consumption | Active Mode: 250 µA at 1 MHz, 2.2 V; Standby Mode: 0.7 µA; Off Mode (RAM Retention): 0.1 µA |
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) with enhanced UART, SPI, and I2C
- 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 without external programming voltage
- Programmable code protection by security fuse and bootstrap loader
- On-chip emulation logic
Applications
The MSP430G2955 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 low-power embedded systems.
Q & A
- What is the operating temperature range of the MSP430G2955?
The operating temperature range is -40°C to 85°C.
- What is the supply voltage range for the MSP430G2955?
The supply voltage range is 1.8 V to 3.6 V.
- How much flash memory does the MSP430G2955 have?
The MSP430G2955 has 56 KB of flash memory.
- What is the resolution of the analog-to-digital converter (ADC) in the MSP430G2955?
The ADC has a resolution of 10 bits and a sampling rate of 200 ksps.
- What communication interfaces are available on the MSP430G2955?
The device supports UART, SPI, I2C, and IrDA communication interfaces.
- How many power-saving modes does the MSP430G2955 have?
The MSP430G2955 has five power-saving modes.
- What is the power consumption in active mode at 1 MHz and 2.2 V?
The power consumption in active mode at 1 MHz and 2.2 V is 250 µA.
- How many touch-sense-enabled I/O pins does the MSP430G2955 have?
The device has up to 32 touch-sense-enabled I/O pins.
- Does the MSP430G2955 support onboard programming?
Yes, the MSP430G2955 supports serial onboard programming without the need for an external programming voltage.
- What is the wake-up time from standby mode?
The wake-up time from standby mode is less than 1 µs.
