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Texas Instruments MSP430F412IRTDT
- Part No.:
- MSP430F412IRTDT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 64-VFQFN Exposed Pad
- Datasheet:
-
MSP430F412IRTDT.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 64VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
MSP430F412IRTDT from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller with 4KB flash + 256B RAM, integrated 96-segment LCD driver, on-chip comparator, and FLL+ clock system. It operates from 1.8 V to 3.6 V, draws 200 μA at 1 MHz in active mode, and supports five power-saving modes - ideal for battery-powered handheld meters and sensor interfaces.
For engineers reviewing the MSP430F412IRTDT datasheet, MSP430F412IRTDT pinout, MSP430F412IRTDT application, or MSP430F412IRTDT equivalent, key selection criteria include its QFN-64 (RTD) package, Timer_A3 with three capture/compare registers, brownout detection, JTAG debug support, and LCD segment drive capability without external bias circuitry.
Technical Context
The MSP430F412IRTDT implements a 16-bit CPU with 125-ns instruction cycle time, constant generators, and seven addressing modes. Its FLL+ module locks the DCO to ACLK (32.768 kHz crystal) for stable MCLK up to 8 MHz, enabling sub-6 μs wake-up from LPM4 standby.
It integrates Timer_A3 (three CC registers), comparator_A with CA0/CA1 inputs and CAOUT output, programmable SVS, and dedicated LCD control logic driving up to 96 segments via S0–S23 and COM0–COM3 terminals - all managed without PxSEL register configuration.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 125-ns instruction cycle - enables compact, deterministic real-time firmware execution. |
| Memory | 4KB + 256B flash program memory and 256B RAM - sufficient for standalone sensor data acquisition and LCD UI firmware with bootloader support. |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, alkaline, or coin-cell batteries without external regulation. |
| Active Current | 200 μA at 1 MHz, 2.2 V - extends battery life in continuous-sensing applications such as portable multimeters. |
| LCD Drive | 96-segment capability with internal resistive divider and COM0–COM3 backplanes - eliminates external LCD bias IC and reduces BOM count. |
| Wake-up Time | <6 μs from LPM4 - allows rapid response to external interrupts (e.g., button press or sensor threshold crossing) while maintaining ultralow quiescent current. |
| Timer Resources | Timer_A3 with three capture/compare registers - supports PWM generation, input capture for frequency measurement, and precise timing intervals. |
Pinout & Package
Package: 64-pin QFN (RTD), 9 mm × 9 mm, 0.5 mm pitch, exposed thermal pad (to be connected to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI | Reset / Nonmaskable Interrupt Input | Active-low hardware reset and NMI trigger; required for safe power-up sequencing and fault recovery. |
| P1.0/TA0 | GPIO / Timer_A Capture Input 0A / BSL TX | Primary serial interface pin for bootstrap loader programming and timer-based signal edge detection. |
| P1.1/TA0/MCLK | GPIO / Timer_A Capture Input 0B / MCLK Output | Provides system clock output for external synchronization or debugging; also used for BSL receive. |
| P2.6/CAOUT/S19 | GPIO / Comparator Output / LCD Segment 19 | Direct access to comparator decision state and simultaneous use as LCD segment driver - no pin multiplexing conflict. |
| COM0–COM3 | LCD Backplane Outputs | Four dedicated common outputs supporting static, 2-, 3-, or 4-mux LCD configurations - simplifies display integration. |
| XIN/XOUT | Crystal Oscillator Inputs | Supports 32.768 kHz watch crystal for accurate real-time clock and low-power ACLK source. |
Key Features
| Feature | Design Value |
|---|---|
| FLL+ Clock System | Digitally locks internal DCO to 32.768 kHz crystal, delivering stable MCLK up to 8 MHz without external capacitors or trimming. |
| Integrated LCD Driver | Drives up to 96 segments with internal voltage divider and four COM outputs - eliminates external LCD bias generator and saves PCB space. |
| Ultralow-Power Modes | Five software-selectable modes including LPM4 (0.1 μA RAM retention) - enables multi-year operation on coin-cell batteries. |
| On-Chip Comparator_A | Two analog inputs (CA0/CA1), rail-to-rail operation, and CAOUT routed to GPIO - enables threshold detection and analog window monitoring without ADC overhead. |
| JTAG + BSL Support | Full boundary-scan debug via TCK/TMS/TDI/TDO pins and UART-based in-system flash programming via P1.0/P1.1 - reduces development tool cost and field firmware updates. |
Applications
| Handheld Digital Multimeter | Portable Gas Detector |
|---|---|
Use Scenario: Battery-powered field instrument measuring voltage, current, resistance, and continuity with real-time numeric and bar-graph LCD display. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, calculation, LCD refresh, button interface, and low-battery alert using integrated comparator and SVS. Use Value: Single-chip solution eliminates external LCD bias IC and reduces active current to 200 μA - enabling >1000-hour operation on two AAA cells. | Use Scenario: Wearable industrial safety device detecting toxic gas concentration and triggering audible/visual alarms when thresholds are exceeded. IC Role / Device Role / Timing Role: Sensor signal conditioner, analog threshold detector (via Comparator_A), alarm sequencer, and segmented LCD driver for status indicators. Use Value: Sub-6 μs wake-up from LPM4 ensures immediate response to gas sensor output changes while maintaining 0.1 μA sleep current - critical for long-term unattended deployment. |
| Smart Electricity Meter Display Module | Low-Power Industrial Panel Meter |
Use Scenario: Secondary display unit showing kWh, voltage, current, and tariff information synchronized with main meter MCU via UART or SPI. IC Role / Device Role / Timing Role: Dedicated LCD controller and communication interface processor - receives formatted data and drives 96-segment display with built-in mux logic. Use Value: Integrated COM0–COM3 and segment drivers eliminate external LCD driver IC, reducing component count and layout complexity in space-constrained enclosures. | Use Scenario: DIN-rail mounted panel meter displaying process variables (temperature, pressure, flow) with local push-button navigation and backlight control. IC Role / Device Role / Timing Role: Standalone UI controller handling keypad scan, LCD update, LED/buzzer control, and supply monitoring via SVS and brownout detection. Use Value: Programmable SVS level detection and 1.8 V minimum supply enable direct connection to 2.4 V supercapacitor backup - ensuring display integrity during mains failure. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F413IRTDT | 8KB flash + 256B RAM, same peripherals and pinout - double program memory capacity. | Required for larger firmware with advanced communication stacks (e.g., Modbus RTU over UART) or extended calibration tables. | Select when firmware size exceeds 4KB or future scalability is needed; identical PCB layout and power design. |
| MSP430F415IRTDT | 16KB flash + 512B RAM, Timer_A5 (five CC registers), additional AVSS2 pin - enhanced memory and timer resources. | Suitable for applications requiring dual timer instances (e.g., simultaneous PWM and input capture) or complex UI logic with graphics buffer. | Choose for higher computational load or dual-timer concurrency; requires minor schematic update for AVSS2 connection. |
Compared with MSP430F412IRTDT, the MSP430F413IRTDT offers scalable code space with zero layout change, while the MSP430F415IRTDT adds timer flexibility and RAM for richer UI - both retain identical LCD, comparator, and low-power behavior critical for metering designs.
Availability
MSP430F412IRTDT is available at Aetrix Electronics and suitable for handheld instrumentation, portable safety monitors, and industrial display modules requiring stable component supply, long-lifecycle support, and consistent QFN-64 packaging.
Supply support for MSP430F412IRTDT 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 microcontroller innovation.
The MSP430x41x product line was designed specifically for ultralow-power, LCD-integrated applications in portable measurement equipment - emphasizing sub-μA sleep current, integrated analog peripherals, and robust flash-based firmware update capability.
FAQ
What is the maximum operating frequency of the MSP430F412IRTDT?
The MSP430F412IRTDT supports a maximum MCLK frequency of 8 MHz, achieved via its FLL+ module locking the internal DCO to a 32.768 kHz crystal reference. This frequency is confirmed in the SLAS340J datasheet Section 15 (Oscillator and System Clock) and enables deterministic real-time execution for sensor sampling and LCD refresh without external high-frequency crystals.
Does the MSP430F412IRTDT support in-system programming?
Yes, the MSP430F412IRTDT supports in-system programming via its integrated bootstrap loader (BSL), accessible through UART on P1.0 (TX) and P1.1 (RX). The BSL requires no external programming voltage and is protected by a user-configurable password. Full implementation details are provided in TI application report SLAA089.
How many LCD segments can the MSP430F412IRTDT drive, and what is the mux configuration?
The MSP430F412IRTDT drives up to 96 segments using four common outputs (COM0–COM3) and 24 segment outputs (S0–S23), supporting static, 2-mux, 3-mux, or 4-mux LCD configurations. The LCD function is enabled automatically by setting LCD control bits - not via PxSEL - as specified in the Terminal Functions table (pages 5–6 of SLAS340J).
What are the power supply requirements for AVCC and DVCC on the MSP430F412IRTDT?
The MSP430F412IRTDT requires separate analog (AVCC/AVSS) and digital (DVCC/DVSS) supplies. AVCC (pin 64) must not power up before DVCC (pin 1); AVSS (pin 62) must be externally connected to DVSS (pin 63). Both supplies operate from 1.8 V to 3.6 V, with AVCC powering the LCD divider, comparator, and oscillator circuits.
Is the MSP430F412IRTDT pin-compatible with other devices in the MSP430x41x family?
Yes, the MSP430F412IRTDT shares identical pinout and package (64-pin QFN, RTD) with MSP430F413IRTDT, MSP430C412IRGC, and MSP430C413IRGC. Functional differences (e.g., flash size, timer count) do not affect physical compatibility - enabling drop-in replacement for memory or ROM variants within the same package option.
MSP430F412IRTDT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 64-VFQFN Exposed Pad
- Series:
- MSP430x4xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- -
- Peripherals:
- Brown-out Detect/Reset, LCD, POR, PWM, WDT
- Number of I/O:
- 48
- Program Memory Size:
- 4KB (4K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- Slope A/D
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F412IRTDT FAQ
1.How can I place an order for MSP430F412IRTDT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F412IRTDT 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 MSP430F412IRTDT reliable?
The price and inventory of MSP430F412IRTDT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F412IRTDT is usually 5 days.
3.What payment methods are accepted for MSP430F412IRTDT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F412IRTDT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F412IRTDT?
MSP430F412IRTDT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F412IRTDT 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 MSP430F412IRTDT?
For technical support, including MSP430F412IRTDT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F412IRTDT requirements.
6.How does Aetrix verify that MSP430F412IRTDT is sourced from the original manufacturer or authorized distributors?
All MSP430F412IRTDT 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 MSP430F412IRTDT meets industry standards.
7.What is the process for return or replacement of MSP430F412IRTDT?
All MSP430F412IRTDT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F412IRTDT, 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 MSP430F412IRTDT part is unused and in its original packaging.
Return procedure for MSP430F412IRTDT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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