Texas Instruments MSP430FG439IPNR
| Parameters | |
|---|---|
| Series | MSP430x4xx |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 80-LQFP |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Supplier Device Package | 80-LQFP (12x12) |
| Speed | 8MHz |
| Oscillator Type | Internal |
| Core Processor | MSP430 CPU16 |
| RAM Size | 2K x 8 |
| Number of I/O | 48 |
| Peripherals | Brown-out Detect/Reset, DMA, LCD, POR, PWM, WDT |
| Voltage - Supply (Vcc/Vdd) | 1.8V ~ 3.6V |
| EEPROM Size | - |
| Program Memory Type | FLASH |
| Connectivity | SPI, UART/USART |
| Core Size | 16-Bit |
| Program Memory Size | 60KB (60K x 8 + 256B) |
| Data Converters | A/D 12x12b; D/A 2x12b |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | MSP430FG439 |
| REACH Status | REACH Unaffected |
| Standard Package | 1,000 |
| ECCN | EAR99 |
| HTSUS | 8542.31.0001 |
MSP430FG439IPNR - 16-Bit Ultra-Low Power Microcontroller with Integrated Peripherals
1. MSP430x4xx Microcontroller IC Overview
The MSP430FG439IPNR is a 16-bit RISC microcontroller from Texas Instruments, designed for ultra-low-power embedded applications. Part of the MSP430FG4xx family, this device combines high processing efficiency with advanced analog and digital peripherals, making it ideal for portable instrumentation, sensor interfaces, and battery-operated systems.
2. Functional Description
2.1 CPU & Clock System
- 16-bit MSP430 core with 27 instructions for efficient code execution
- Flexible clock system:
- Internal DCO (Digitally Controlled Oscillator)
- External crystal support (32 kHz to 8 MHz)
2.2 Analog & Mixed-Signal Features
- 12-Bit ADC with internal reference (1.5 V / 2.5 V)
- Dual 12-Bit DACs for analog signal generation
- Three configurable Op-Amps for signal conditioning
2.3 Communication Interfaces
- USCI (UART/SPI/I2C) for serial communication
- Hardware UART for easy PC interfacing
2.4 Low-Power Modes
- Five power-saving modes (LPM0-LPM4)
- Fast wake-up from standby (<1 µs)
3. Applications
The MSP430FG439IPNR is widely used in:
· Portable Medical Devices (glucose meters, pulse oximeters)
· Industrial Sensors & Data Loggers
· Battery-Powered IoT Devices
· Energy Harvesting Systems
· Motor Control & Automation
4. Design Considerations
4.1 Power Management
- Use low-ESR capacitors for stable voltage regulation.
- Optimize sleep modes for battery life extension.
4.2 PCB Layout Guidelines
- Separate analog and digital grounds for noise reduction.
- Keep high-speed signals away from analog inputs.
4.3 Firmware Optimization
- Utilize low-power modes (LPM3/LPM4) when idle.
- Leverage hardware accelerators (DMA, multiplier) for efficiency.
5. Conclusion
The MSP430FG439IPNR is a highly integrated, ultra-low-power microcontroller with advanced analog features, making it ideal for battery-operated and precision measurement applications. Its 60 KB Flash, 12-bit ADC/DAC, and multiple communication interfaces provide a flexible platform for embedded designs.
