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Texas Instruments MSP430FG479IPN
- Part No.:
- MSP430FG479IPN
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430FG479IPN.pdf
- Description:
- IC MCU 16BIT 60KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:2,300
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Product details
Overview
MSP430FG479IPN from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 60KB flash, 2KB RAM, a 16-bit sigma-delta ADC with five differential inputs, dual 12-bit DACs, two configurable op-amps, dual 16-bit timers (Timer_A and Timer_B), two USCI modules (UART/I²C/SPI), and integrated LCD driver supporting up to 128 segments - deployed in handheld meters, thermostats, and analog sensor systems.
For engineers reviewing the MSP430FG479IPN datasheet, MSP430FG479IPN pinout, MSP430FG479IPN application, or MSP430FG479IPN equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for industrial embedded design and battery-powered measurement systems.
Technical Context
The MSP430FG479IPN implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling wake-up from LPM3 in under 6 µs. Its memory-mapped peripherals include SD16_A (16-bit sigma-delta ADC), DAC12 (dual 12-bit DACs), OA (two fully configurable operational amplifiers), and LCD_A (segment driver with contrast control).
It supports multiple clock sources: LFXT1 (32.768 kHz watch crystal or 0.45–6 MHz resonator/crystal), XT2 (1–8 MHz), and DCO - with ACLK, MCLK, and SMCLK independently selectable. Power management includes five low-power modes (LPM0–LPM4), with LPM4 drawing only 0.1 µA at 2.2 V and 25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash / RAM | 60 KB + 256 B flash / 2 KB RAM - sufficient for complex sensor fusion algorithms and bootloader-resident firmware updates. |
| CPU Architecture | 16-bit RISC with 125 ns instruction cycle - enables deterministic real-time control and efficient C code execution. |
| ADC | 16-bit sigma-delta SD16_A with internal reference and five differential inputs - supports high-resolution DC-coupled sensor measurements without external precision references. |
| DACs | Dual 12-bit DAC12 modules - provide programmable analog outputs for calibration, biasing, or waveform generation. |
| Op-Amps | Two fully configurable operational amplifiers (OA0/OA1) with switchable inputs/feedback paths - enable programmable gain stages, active filters, or sensor signal conditioning. |
| Timers | Timer_A (3 capture/compare registers) and Timer_B (7 capture/compare-with-shadow registers) - support PWM, input capture, quadrature decoding, and RTC functions. |
| USCI Interfaces | USCI_A0 (UART/IrDA/SPI) and USCI_B0 (I²C/SPI) - enable simultaneous wired communication with sensors, displays, and host controllers. |
| LCD Driver | Integrated LCD_A supporting up to 128 segments with programmable contrast - eliminates external display controller in portable instrumentation. |
Pinout & Package
Package: 80-pin LQFP (PN), 12 mm × 12 mm body size, surface-mount, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0/OA0RFB | GPIO / Timer_A CCI0A / OA0 feedback | Multi-function I/O supporting timer capture, DAC output routing, and op-amp feedback loop closure. |
| P6.0/A0+/OA0O | ADC input / OA0 output | Direct connection between sigma-delta ADC channel A0 and OA0 output - enables closed-loop sensor signal conditioning. |
| AVCC / AVSS | Analog supply rails | Separate 1.8–3.6 V analog power domain isolates noise-sensitive ADC/DAC/OPA circuitry from digital switching. |
| COM0–COM3 | LCD backplane drivers | Four common outputs for multiplexed LCD drive - support static, 2-, 3-, or 4-mux segment configurations up to 128 segments. |
| RST/NMI | Reset & non-maskable interrupt | Single pin serves as hardware reset, NMI source, and BSL entry trigger - simplifies system-level fault recovery and firmware update paths. |
| XIN / XOUT | LFXT1 crystal interface | Supports 32.768 kHz watch crystal for RTC operation - enables accurate timekeeping with <1 ppm stability in thermostats and timers. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | LPM4 current of 0.1 µA at 2.2 V enables >10-year battery life in coin-cell-powered handheld meters. |
| Integrated analog front-end | Combined SD16_A ADC, dual DAC12, and dual configurable OAs eliminate ≥4 external ICs in sensor node designs. |
| On-chip LCD driver | Drives up to 128 segments with programmable bias and contrast - reduces BOM cost and PCB area in portable instrumentation. |
| Real-time clock capability | Basic Timer with ACLK synchronization provides calendar/time-of-day functionality without external RTC IC. |
| Secure bootloader | Factory-programmed BSL with password protection enables field firmware updates over UART without JTAG debugger. |
Applications
| Hand-Held Meters | Thermostats |
|---|---|
Use Scenario: Portable multimeters and environmental sensors requiring high-precision analog measurement and long battery life. IC Role / Device Role / Timing Role: Primary MCU executing sensor acquisition, sigma-delta ADC conversion, LCD display control, and button interface. Use Value: Integrated SD16_A ADC with internal reference and dual OAs enable direct connection to thermistors, RTDs, or bridge sensors - eliminating external signal conditioning. |
Use Scenario: Residential HVAC controllers needing accurate temperature sensing, user interface, and scheduling logic. IC Role / Device Role / Timing Role: System-on-chip managing NTC/thermistor readings, LCD display, relay control, and real-time clock-based scheduling. Use Value: Built-in RTC (via Basic Timer + ACLK) and 128-segment LCD driver reduce component count and improve timekeeping accuracy vs. discrete RTC + display driver solutions. |
| Analog Sensor Systems | Digital Motor Control |
Use Scenario: Industrial condition-monitoring nodes measuring vibration, pressure, or strain with high-resolution DC signals. IC Role / Device Role / Timing Role: Signal acquisition MCU performing low-noise analog front-end processing, filtering, and local decision-making. Use Value: Dual configurable OAs support programmable gain/offset stages; SD16_A provides 16-bit resolution at 100+ SPS - suitable for precision transducer interfaces. |
Use Scenario: Brushless DC motor drives in appliances requiring commutation timing, current sensing, and fault protection. IC Role / Device Role / Timing Role: Real-time controller generating PWM via Timer_B, sampling current via SD16_A, and executing FOC algorithms. Use Value: Timer_B's seven capture/compare registers with shadow registers enable glitch-free PWM updates during runtime - critical for smooth motor torque control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F5438AIPN | 256 KB flash, 16 KB RAM, no integrated LCD driver, enhanced USCI (eUSCI_A/B), higher max frequency (25 MHz) | Better suited for data-logging or connectivity-heavy applications; lacks on-chip LCD support - requires external display controller. | Select when larger code space and USB-capable communication are required, and LCD integration is unnecessary. |
| MSP430FR5969IPN | Ferroelectric RAM (64 KB FRAM), 2 KB RAM, no sigma-delta ADC, no LCD driver, lower active current (112 µA/MHz) | Superior write endurance and faster nonvolatile storage; lacks analog precision peripherals - unsuitable for high-resolution sensor acquisition. | Choose for ultra-low-power logging or frequent firmware updates where analog measurement fidelity is secondary to memory reliability. |
Compared with MSP430F5438AIPN and MSP430FR5969IPN, the MSP430FG479IPN uniquely combines high-resolution sigma-delta ADC, dual DACs, dual configurable op-amps, and integrated LCD driver in a single 80-pin LQFP - making it the only option among the three for cost-sensitive, battery-powered instrumentation with on-device display.
Availability
MSP430FG479IPN is available at Aetrix Electronics and suitable for handheld meters, thermostats, analog sensor systems, and digital motor control applications requiring stable component supply across extended production lifecycles.
Supply support for MSP430FG479IPN includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies - with decades of expertise in ultra-low-power microcontrollers.
The MSP430FG47x product line was designed specifically for battery-powered measurement applications demanding high analog precision, integrated display capability, and multi-decade operational lifetime - targeting instrumentation, building automation, and portable industrial tools.
FAQ
What is the maximum operating frequency of the MSP430FG479IPN?
The MSP430FG479IPN supports a maximum system clock (MCLK) frequency of 4.15 MHz at 1.8 V and 8 MHz at 2.5 V or higher, per the recommended operating conditions. This limit is set by the DCO oscillator performance and voltage-dependent timing margins - not by the CPU architecture itself. The device is optimized for ultra-low-power operation rather than raw speed, with typical active-mode current scaling linearly with frequency.
Does the MSP430FG479IPN support hardware UART with automatic baud-rate detection?
Yes, the MSP430FG479IPN's USCI_A0 module supports enhanced UART mode with automatic baud-rate detection, as confirmed in the device features list and USCI_A specification section. This capability allows the MSP430FG479IPN to synchronize to incoming serial streams without prior knowledge of the transmit rate - useful in interoperability scenarios with legacy or variable-speed peripherals.
Can the MSP430FG479IPN drive a 4-mux LCD display?
Yes, the MSP430FG479IPN's LCD_A peripheral supports static, 2-, 3-, and 4-mux LCD configurations, as documented in Section 5.19 and Table 4-1. In 4-mux mode, it can drive up to 128 segments using COM0–COM3 and 32 segment pins - enabling compact, low-power alphanumeric displays in thermostats and handheld meters without external drivers.
What are the key differences between the MSP430FG479IPN and MSP430FG478IPN?
The MSP430FG479IPN contains 60 KB + 256 B of flash memory and 2 KB of RAM, while the MSP430FG478IPN has 48 KB + 256 B flash and identical 2 KB RAM. All other peripherals - including SD16_A, DAC12, OA, timers, USCI, and LCD_A - are functionally identical between the two devices. Pin compatibility and software compatibility are maintained across the FG47x family.
Is the MSP430FG479IPN qualified for industrial temperature range operation?
Yes, the MSP430FG479IPN is rated for an operating free-air temperature range of –40°C to +85°C, as specified in Section 5.3 (Recommended Operating Conditions). This qualification covers all core peripherals - including the SD16_A ADC, DAC12, OA, LCD_A, and timers - making it suitable for deployment in uncontrolled environments such as HVAC equipment and factory-floor sensors.
MSP430FG479IPN Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tray
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, LCD, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 60KB (60K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 2K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 5x16b; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FG479IPN FAQ
1.How can I place an order for MSP430FG479IPN through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FG479IPN on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for MSP430FG479IPN reliable?
The price and inventory of MSP430FG479IPN are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FG479IPN is usually 5 days.
3.What payment methods are accepted for MSP430FG479IPN?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FG479IPN transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FG479IPN?
MSP430FG479IPN orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FG479IPN order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for MSP430FG479IPN?
For technical support, including MSP430FG479IPN datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FG479IPN requirements.
6.How does Aetrix verify that MSP430FG479IPN is sourced from the original manufacturer or authorized distributors?
All MSP430FG479IPN products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that MSP430FG479IPN meets industry standards.
7.What is the process for return or replacement of MSP430FG479IPN?
All MSP430FG479IPN units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FG479IPN, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The MSP430FG479IPN part is unused and in its original packaging.
Return procedure for MSP430FG479IPN:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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