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Texas Instruments MSP430FG479IZCA
- Part No.:
- MSP430FG479IZCA
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 113-VFBGA
- Datasheet:
-
MSP430FG479IZCA.pdf
- Description:
- IC MCU 16BIT 60KB FLASH 113NFBGA
- Quantity:
- Payment:
- Shipping:
Inventory:2,802
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Product details
Overview
MSP430FG479IZCA from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 60 KB + 256 B flash, 2 KB 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 with three and Timer_B with seven capture/compare registers), two USCI modules (UART/I²C/SPI), and integrated LCD driver supporting up to 128 segments - deployed in portable sensor systems and battery-powered thermostats.
For engineers reviewing the MSP430FG479IZCA datasheet, MSP430FG479IZCA pinout, MSP430FG479IZCA application, or MSP430FG479IZCA equivalent, this page delivers verified functional identity, package-specific pin mapping for the 113-ball nFBGA (ZCA), confirmed low-power mode timing (LPM3 wakeup <6 µs), real-world supply current values (1.1 µA standby, 0.1 µA LPM4), and validated alternative MCUs for analog-intensive embedded designs.
Technical Context
The MSP430FG479IZCA implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO), enabling sub-6 µs wake-up from LPM3 using a 32.768-kHz watch crystal on LFXT1. Its peripheral set is co-architected for simultaneous high-precision analog acquisition and real-time control: the SD16_A ADC supports internal reference and programmable gain, while dual op amps can be configured as PGA, comparator, or transimpedance amplifier - all synchronized via shared timer-triggered sampling.
Two independent USCI modules provide hardware-level protocol flexibility: USCI_A0 supports UART with auto-baud detection and IrDA encoding, while USCI_B0 handles I²C master/slave and synchronous SPI - both operating concurrently with LCD_A driving 4-common, 32-segment displays without CPU intervention. The device uses separate analog (AVCC/AVSS) and digital (DVCC1/DVCC2/DVSS1/DVSS2) supply domains to minimize noise coupling into precision analog paths.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash / RAM | 60 KB + 256 B flash, 2 KB RAM - sufficient for complex sensor fusion algorithms with bootloader and firmware update partitioning |
| ADC Resolution | 16-bit sigma-delta (SD16_A) with five differential inputs - enables high-accuracy thermistor, strain gauge, or pH sensor digitization |
| DAC Outputs | Dual 12-bit DACs - support closed-loop control of analog actuators (e.g., valve positioning, bias voltage tuning) |
| Op Amp Count | Two fully configurable operational amplifiers - usable as PGAs, filters, or current-to-voltage converters for sensor front-ends |
| Timer Resources | Timer_A (3 CC registers), Timer_B (7 CC registers with shadow) - supports multi-channel PWM generation and precise event capture |
| LCD Driver | Integrated LCD_A controller for up to 128 segments (4×32) - eliminates external display controller in handheld meters |
| Supply Range | 1.8 V to 3.6 V - compatible with single-cell Li-ion, Li-polymer, or two-cell alkaline battery operation |
| Low-Power Modes | Five modes including LPM4 (0.1 µA at 2.2 V) - extends battery life to years in intermittently active monitoring applications |
Pinout & Package
Package: 113-ball nFBGA (ZCA), 7 mm × 7 mm, 0.5-mm pitch, RoHS-compliant. Ball grid layout optimized for signal integrity in analog-digital mixed-signal PCBs with dedicated AVSS/DVSS planes and isolated analog/digital supply balls.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AVCC / AVSS | Analog power supply rails | Isolated 1.8–3.6 V analog domain powering SD16_A, op amps, and DACs - requires local decoupling to maintain SNR |
| DVCC1/DVCC2 / DVSS1/DVSS2 | Digital power supply rails | Dual digital supplies enable partitioned power gating; DVCC2 powers USCI peripherals independently for selective wake-up |
| P6.0/A0+ / P6.1/A0− | SD16_A differential input pair | Primary high-precision analog input channel with programmable gain and internal reference - used for calibrated sensor interfaces |
| P1.6/DAC0 / P1.4/DAC1 | DAC output terminals | Direct voltage outputs for analog control loops; each DAC supports buffered/unbuffered modes and reference selection |
| COM0–COM3 / S0–S31 | LCD backplane and segment drivers | Hardware-mapped outputs supporting static or 4-mux multiplexed LCDs - no GPIO bit-banging required |
| XIN / XOUT | LFXT1 crystal interface | 32.768-kHz watch crystal connection for RTC and LPM3 timing - internal load caps configurable via register |
| TCK / TMS / TDI/TCLK / TDO/TDI | JTAG debug interface | Four-pin boundary-scan interface supporting full-speed programming, real-time debugging, and fuse-based security lock |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power LPM4 | 0.1 µA at 2.2 V - enables decade-scale battery life in environmental sensors with infrequent wake-ups |
| Integrated LCD_A controller | Drives 128 segments with contrast control and charge pump - reduces BOM count and PCB area vs discrete solutions |
| Dual configurable op amps | Each supports PGA, comparator, or transimpedance configurations - replaces external signal-conditioning ICs in compact designs |
| USCI_A0 with IrDA encoder | Hardware IrDA physical layer support - enables contactless data upload in medical or industrial handheld devices |
| SD16_A with built-in VCC sense | On-chip temperature sensor and supply monitor - allows self-calibration and brownout-safe operation without external components |
| Bootloader (BSL) | UART-based in-system programming via P1.0/P1.1 - enables field firmware updates without JTAG hardware |
Applications
| Portable Hand-Held Meters | Digital Thermostats |
|---|---|
Use Scenario: Battery-powered multimeter measuring voltage, current, and resistance with auto-ranging and hold function. IC Role / Device Role / Timing Role: MSP430FG479IZCA serves as main controller, ADC acquisition engine, and LCD display manager - synchronizing sampling, computation, and segment updates. Use Value: Integrated SD16_A and dual op amps eliminate external signal conditioning; 0.1 µA LPM4 extends AA battery life beyond 5 years. |
Use Scenario: Wall-mounted HVAC thermostat with ambient temperature/humidity sensing, relay control, and segmented LCD display. IC Role / Device Role / Timing Role: MSP430FG479IZCA executes PID loop, reads thermistor/hygrometer via SD16_A, drives relays via GPIO, and refreshes 4×32 LCD every 2 seconds. Use Value: Dual DACs generate precise reference voltages for sensor biasing; RTC-enabled LPM3 ensures accurate timekeeping during sleep. |
| Analog Sensor Data Loggers | Digital Motor Control Interfaces |
Use Scenario: Remote soil moisture and pH logger recording data hourly to flash memory and transmitting via UART to gateway. IC Role / Device Role / Timing Role: MSP430FG479IZCA performs low-noise analog front-end conditioning (via op amps), high-resolution ADC conversion, timestamped storage, and burst-mode UART transmission. Use Value: SD16_A's internal reference and programmable gain ensure stable measurements across temperature; 60 KB flash stores >10,000 samples with metadata. |
Use Scenario: Brushless DC motor controller feedback interface acquiring hall-effect or encoder signals and generating commutation timing. IC Role / Device Role / Timing Role: MSP430FG479IZCA captures edge-triggered hall signals via Timer_B inputs, computes rotor position, and outputs PWM via Timer_A compare registers. Use Value: Seven capture/compare registers in Timer_B support simultaneous multi-channel timing; 125-ns instruction cycle enables sub-microsecond interrupt latency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F6736IPZ | 64 KB flash, 4 KB RAM, 32-bit Sigma-Delta ADC (SD24), single DAC, no integrated LCD driver | Better suited for higher-precision metering (e.g., electricity meters) but lacks LCD_A and second DAC | Select when higher ADC resolution and larger RAM are critical, and external display controller is acceptable |
| MSP430FR6989IPZ | 128 KB FRAM, 8 KB RAM, 16-bit SAR ADC (not sigma-delta), no DACs or op amps, integrated LCD driver | Superior write endurance and faster code execution, but lacks analog signal chain components for sensor conditioning | Select when frequent data logging to nonvolatile memory is primary need, and external op amp/DACs are added |
Compared with MSP430FG479IZCA, MSP430F6736IPZ offers enhanced metrology-grade ADC performance but removes LCD and dual DAC capability, while MSP430FR6989IPZ trades analog integration for FRAM speed and endurance - making the MSP430FG479IZCA optimal for cost-sensitive, analog-rich, display-integrated battery devices.
Availability
MSP430FG479IZCA is available at Aetrix Electronics and suitable for portable hand-held meters, digital thermostats, and analog sensor data loggers requiring stable component supply across extended production lifecycles.
Supply support for MSP430FG479IZCA 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 over 90 years of innovation in energy-efficient electronics.
The MSP430FG47x product line was designed for ultra-low-power, analog-intensive embedded applications - integrating precision ADCs, DACs, op amps, and LCD drivers to minimize external components in battery-operated measurement systems.
FAQ
What is the maximum system clock frequency supported by the MSP430FG479IZCA?
The MSP430FG479IZCA supports a maximum system clock (MCLK) frequency of 4.15 MHz at 1.8 V and 8 MHz at 2.5 V or higher, as specified in the Recommended Operating Conditions table. This limit is enforced by the DCO oscillator and internal timing constraints - exceeding it may cause instruction execution errors or peripheral malfunction. The actual achievable frequency depends on supply voltage and temperature; for reliable operation, design must adhere to the f(System) vs VCC curve in Section 5.3 of the SLAS580E datasheet. MSP430FG479IZCA maintains full peripheral functionality across this range.
Does the MSP430FG479IZCA support hardware real-time clock (RTC) functionality?
Yes, the MSP430FG479IZCA includes a Basic Timer module with real-time clock (RTC) capability, enabled via the BTCTL register and driven by the 32.768-kHz ACLK source from LFXT1. It supports calendar mode with seconds, minutes, hours, day-of-week, day-of-month, month, and year counters - all accessible through dedicated RTC registers. The RTC operates in LPM3 with only 1.1 µA typical current draw and retains time during deep sleep. MSP430FG479IZCA's RTC does not require external components beyond the watch crystal on XIN/XOUT.
How many LCD segments can the MSP430FG479IZCA drive, and what mux configurations are supported?
The MSP430FG479IZCA's LCD_A module supports up to 128 segments using 4 commons (COM0–COM3) and 32 segments per common - configured via LCDCPEN and LCDMX bits. It supports static (1:1), 2-mux (1:2), 3-mux (1:3), and 4-mux (1:4) drive schemes, with frame frequency programmable from 30 Hz to 120 Hz. Charge pump (LCDCPEN = 1) enables higher contrast for passive LCDs. All segment assignments map directly to GPIO pins S0–S31 and COM0–COM3 - no software bit-banging is needed. MSP430FG479IZCA's LCD_A operates autonomously in LPM3.
What are the key differences between the ZCA and ZQW packages for the MSP430FG479?
Both MSP430FG479IZCA (nFBGA) and MSP430FG479IZQW (MicroStar Junior BGA) are 113-ball, 7 mm × 7 mm packages with identical pinouts and electrical characteristics. However, TI has designated all ZQW variants as Last Time Buy (LTB) per the Package Option Addendum, while ZCA remains actively manufactured and supported. The ZCA package uses standard nFBGA construction with improved thermal performance and broader distributor availability. MSP430FG479IZCA is the recommended long-term solution for new designs requiring ongoing supply assurance.
Can the dual operational amplifiers in the MSP430FG479IZCA be used simultaneously as independent circuits?
Yes, the two operational amplifiers (OA0 and OA1) in the MSP430FG479IZCA operate independently with separate input/output routing, gain configuration, and power control bits (OA0CTL/OA1CTL). Each supports PGA, comparator, or transimpedance modes - for example, OA0 can condition a thermistor bridge while OA1 buffers a DAC output, both active concurrently. Input multiplexers allow dynamic reconfiguration of analog sources without GPIO remapping. MSP430FG479IZCA's op amp control registers enable per-amplifier shutdown to reduce current in unused channels.
MSP430FG479IZCA Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 113-VFBGA
- 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 Sigma-Delta; D/A 2x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FG479IZCA FAQ
1.How can I place an order for MSP430FG479IZCA through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FG479IZCA 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 MSP430FG479IZCA reliable?
The price and inventory of MSP430FG479IZCA are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FG479IZCA is usually 5 days.
3.What payment methods are accepted for MSP430FG479IZCA?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FG479IZCA transactions.
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4.How is shipping managed for MSP430FG479IZCA?
MSP430FG479IZCA orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FG479IZCA 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 MSP430FG479IZCA?
For technical support, including MSP430FG479IZCA datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FG479IZCA requirements.
6.How does Aetrix verify that MSP430FG479IZCA is sourced from the original manufacturer or authorized distributors?
All MSP430FG479IZCA 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 MSP430FG479IZCA meets industry standards.
7.What is the process for return or replacement of MSP430FG479IZCA?
All MSP430FG479IZCA units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FG479IZCA, 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 MSP430FG479IZCA part is unused and in its original packaging.
Return procedure for MSP430FG479IZCA:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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