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Texas Instruments MSP430F479IPNR
- Part No.:
- MSP430F479IPNR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 80-LQFP
- Datasheet:
-
MSP430F479IPNR.pdf
- Description:
- IC MCU 16BIT 60KB FLASH 80LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,369
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Product details
Overview
MSP430F479IPNR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller designed for precision measurement systems with integrated LCD driving capability. It features 60KB flash, 2KB RAM, a 16-bit sigma-delta ADC with five differential inputs, a 12-bit DAC, dual 16-bit timers (Timer_A and Timer_B), two USCI modules (UART/I²C/SPI), and an on-chip LCD controller supporting up to 160 segments - deployed in handheld meters and digital thermostats requiring long battery life.
For engineers reviewing the MSP430F479IPNR datasheet, MSP430F479IPNR pinout, MSP430F479IPNR application, or MSP430F479IPNR equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options - all grounded in TI's SLAS629B production datasheet and official device documentation.
Technical Context
The MSP430F479IPNR implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6 µs wake-up from LPM3 standby mode. Its SD16_A sigma-delta ADC operates with internal reference and supports programmable gain, while the integrated LCD_A driver uses a regulated charge pump and supports static and 4-mux modes at fLCD = fACLK/32.
It integrates dual USCI modules: USCI_A0 supports UART with auto-baud detection and IrDA, plus SPI; USCI_B0 supports I²C and SPI. Power management includes SVS with programmable threshold, brownout reset, and five low-power modes - optimized for sensor front-ends where analog accuracy, display integration, and µA-level active/standby current are critical.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash / RAM | 60 KB + 256 B flash / 2 KB RAM - sufficient for complex sensor firmware with calibration tables and LCD UI logic. |
| ADC | 16-bit sigma-delta SD16_A with 5 differential inputs and internal reference - enables high-resolution DC-coupled measurements without external precision references. |
| DAC | 12-bit DAC12 with linearity ±1 LSB - suitable for closed-loop control feedback or analog output generation in metering applications. |
| Timers | Timer_A (3 capture/compare) + Timer_B (7 capture/compare-with-shadow) - supports PWM generation, input capture for motor timing, and RTC-backed event scheduling. |
| USCI Interfaces | USCI_A0 (UART/IrDA/SPI) + USCI_B0 (I²C/SPI) - enables dual-protocol communication with sensors, displays, or host controllers without external level shifters. |
| LCD Driver | Integrated LCD_A supporting up to 160 segments with charge-pump regulation - eliminates external bias supply and simplifies 4-digit+ segment display design. |
| Supply Current | 262 µA @ 1 MHz / 2.2 V (active); 1.1 µA (LPM3 w/ RTC & LCD); 0.1 µA (LPM4) - extends coin-cell battery life to multi-year operation in portable instruments. |
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 | GPIO / Timer_A CCI0A input | Primary capture input for pulse-width or frequency measurement; also serves as general-purpose I/O. |
| P1.6/CA0/A2-/DAC0 | GPIO / Comparator_A input / ADC A2− / DAC output | Multi-function pin supporting analog input (differential ADC channel), comparator reference, and DAC voltage output. |
| P6.0/A0+ | SD16_A positive analog input A0 | Dedicated high-impedance input for precision single-ended or differential sensor signal acquisition. |
| COM0–COM3 | LCD backplane outputs | Four common outputs for 4-mux LCD configuration - enable drive of up to 160 segments using only 4 COM lines. |
| RST/NMI | Reset / non-maskable interrupt / BSL trigger | Hardware reset initiation, emergency interrupt, and entry point for bootloader-based firmware updates over UART. |
| XT2IN/XT2OUT | High-frequency crystal oscillator interface | Supports external 1–8 MHz crystal or ceramic resonator for system clock scaling beyond LFXT1's 32.768 kHz. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA in LPM4 (RAM retention) and <6 µs wake-up - enables energy harvesting or decade-scale battery operation in remote sensors. |
| Integrated LCD controller | Regulated charge-pump LCD_A driver with static/4-mux support - removes need for external LCD bias IC and reduces BOM count by ≥3 components. |
| Sigma-delta ADC with internal reference | 16-bit SD16_A with built-in 1.2 V reference and temperature sensor - eliminates external voltage reference and enables self-calibrating sensor front-ends. |
| Dual USCI modules | Independent USCI_A0 (UART/IrDA/SPI) and USCI_B0 (I²C/SPI) - allows concurrent communication with UART-connected host and I²C temperature/humidity sensors. |
| Real-time clock with basic timer | RTC-capable Basic Timer1 driven by ACLK (32.768 kHz) - provides accurate timekeeping for data logging intervals and alarm scheduling without external RTC IC. |
Applications
| Hand-Held Meters | Digital Thermostats |
|---|---|
Use Scenario: Portable multimeter or clamp meter measuring voltage, current, and resistance with LCD readout and auto-ranging. IC Role / Device Role / Timing Role: Primary MCU executing measurement algorithms, driving 128-segment LCD, managing button inputs, and storing calibration data in flash. Use Value: Integrated SD16_A ADC and LCD_A driver reduce component count by 4–6 parts versus discrete solutions, while 0.1 µA LPM4 current enables >5-year CR2032 battery life. |
Use Scenario: Wall-mounted HVAC thermostat with ambient temperature/humidity sensing, setpoint UI, and relay control. IC Role / Device Role / Timing Role: System controller acquiring sensor data via SD16_A, updating segmented LCD display, managing user interface, and triggering heating/cooling cycles. Use Value: On-chip comparator and SVS provide reliable overtemperature shutdown; RTC-enabled logging supports energy usage analytics without external timing IC. |
| Analog Sensor Systems | Digital Motor Control |
Use Scenario: Industrial pressure or strain gauge transmitter with 4–20 mA loop output and local LCD status display. IC Role / Device Role / Timing Role: Signal conditioner and protocol processor - digitizing bridge sensor output, applying linearization, and generating analog output via DAC12 or digital communication. Use Value: Differential SD16_A inputs reject common-mode noise from long sensor cables; integrated DAC12 provides precise 0–5 V or 4–20 mA reference voltage generation. |
Use Scenario: Brushless DC motor controller in cordless power tools, requiring commutation timing, current sensing, and speed feedback. IC Role / Device Role / Timing Role: Real-time motor sequencer - using Timer_B capture/compare registers for precise Hall-effect timing and PWM generation across 3 phases. Use Value: Dual 16-bit timers with shadow registers ensure glitch-free PWM updates during runtime; 48 GPIO pins support direct Hall sensor and gate driver interfacing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F478IPNR | 48 KB flash, same peripherals and pinout - 12 KB less program memory; identical 2 KB RAM and peripheral set. | Suitable for simpler firmware with smaller code footprint; not recommended if calibration tables or advanced UI logic exceed 48 KB. | Select when application firmware fits within 48 KB and cost sensitivity outweighs future scalability needs. |
| MSP430F5529IPN | 128 KB flash, 8 KB RAM, USB interface, no integrated LCD driver, higher active current (165 µA/MHz). | Better for USB-connected devices or larger applications; lacks native LCD support - requires external driver or redesign. | Choose for designs needing USB connectivity or more RAM, but avoid if LCD integration and sub-µA standby are mandatory. |
Compared with MSP430F478IPNR, the MSP430F479IPNR adds 12 KB flash for enhanced firmware flexibility without changing layout or power architecture; versus MSP430F5529IPN, it trades USB and RAM for guaranteed ultra-low-power LCD integration and lower standby current - making it optimal for battery-powered display-centric instruments.
Availability
MSP430F479IPNR is available at Aetrix Electronics and suitable for hand-held meters, digital thermostats, and analog sensor systems requiring stable component supply, long-term lifecycle assurance, and full traceability for industrial OEM programs.
Supply support for MSP430F479IPNR 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 leadership in ultra-low-power microcontrollers.
The MSP430F47x product line was engineered specifically for precision measurement and display-integrated applications in portable instrumentation, offering best-in-class µA/MHz efficiency and integrated analog peripherals - including sigma-delta ADCs and LCD drivers - to minimize system-level BOM and power consumption.
FAQ
What is the maximum operating frequency of the MSP430F479IPNR?
The MSP430F479IPNR supports a maximum system clock frequency of 8 MHz at VCC = 3 V, derived from the DCO, XT2, or LFXT1 oscillators. Its 125-ns instruction cycle time enables deterministic real-time execution for time-critical sensor sampling and display refresh tasks - confirmed in Section 5.3 of the SLAS629B datasheet.
Does the MSP430F479IPNR support hardware UART with automatic baud-rate detection?
Yes, the MSP430F479IPNR's USCI_A0 module supports enhanced UART mode with automatic baud-rate detection - allowing robust communication with hosts that may transmit at unknown or variable baud rates. This feature is explicitly documented in the "Features" section and Section 5.40 of the SLAS629B datasheet.
Can the MSP430F479IPNR drive a 160-segment LCD without external components?
Yes, the MSP430F479IPNR integrates the LCD_A controller with a regulated charge pump and supports up to 160 segments in 4-mux mode using only COM0–COM3 and segment pins. No external bias generator or capacitors beyond LCDCAP are required - as verified in Sections 1.1 and 5.19 of the SLAS629B datasheet.
What is the standby current consumption of the MSP430F479IPNR in LPM3 mode with RTC enabled?
In LPM3 mode with Basic Timer1 enabled, ACLK selected, and LCD_A active (static mode), the MSP430F479IPNR draws 1.1 µA at 25°C and 2.2 V - rising to 4.0 µA at 85°C. These values are measured with a Micro Crystal CC4V-T1A crystal and are specified in Table 5.4 of the SLAS629B datasheet.
Is the MSP430F479IPNR pin-compatible with other MSP430F47x variants in the PN package?
Yes, the MSP430F479IPNR shares identical 80-pin LQFP (PN) pinout and electrical characteristics with MSP430F478IPNR and MSP430F477IPNR - enabling drop-in replacement within the same package family. This compatibility is confirmed in the Device Comparison table (Table 3-1) and Pin Diagrams (Figure 4-1) of SLAS629B.
MSP430F479IPNR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 80-LQFP
- Series:
- MSP430x4xx
- Packaging:
- Tape & Reel (TR)
- 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 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F479IPNR FAQ
1.How can I place an order for MSP430F479IPNR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F479IPNR 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 MSP430F479IPNR reliable?
The price and inventory of MSP430F479IPNR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F479IPNR is usually 5 days.
3.What payment methods are accepted for MSP430F479IPNR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F479IPNR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F479IPNR?
MSP430F479IPNR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F479IPNR 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 MSP430F479IPNR?
For technical support, including MSP430F479IPNR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F479IPNR requirements.
6.How does Aetrix verify that MSP430F479IPNR is sourced from the original manufacturer or authorized distributors?
All MSP430F479IPNR 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 MSP430F479IPNR meets industry standards.
7.What is the process for return or replacement of MSP430F479IPNR?
All MSP430F479IPNR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F479IPNR, 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 MSP430F479IPNR part is unused and in its original packaging.
Return procedure for MSP430F479IPNR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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