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Texas Instruments MSP430F4250IRGZT
- Part No.:
- MSP430F4250IRGZT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430F4250IRGZT.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:262
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Product details
Overview
MSP430F4250IRGZT from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 16KB Flash, 256B RAM, a 16-bit sigma-delta ADC with internal reference and five differential analog inputs, a 12-bit DAC, Timer_A3 with three capture/compare registers, and integrated LCD driver supporting up to 56 segments - deployed in battery-powered metering and sensor systems.
For engineers reviewing the MSP430F4250IRGZT datasheet, MSP430F4250IRGZT pinout, MSP430F4250IRGZT application, or MSP430F4250IRGZT equivalent, key selection criteria include active-mode current (250 μA @ 1 MHz, 2.2 V), standby-mode wake-up time (<6 μs), LCD segment drive capability (56 seg), sigma-delta ADC resolution (16-bit), and QFN-48 package compatibility with space-constrained portable designs.
Technical Context
The MSP430F4250IRGZT implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its FLL+ clock system integrates a digitally controlled oscillator (DCO) and supports ACLK (32.768 kHz crystal), MCLK (up to 8 MHz), and SMCLK for peripheral timing.
It features five software-selectable low-power modes (LPM0–LPM4), brownout detection, programmable code protection via security fuse, and serial onboard programming without external voltage. The SD16_A module provides 16-bit sigma-delta conversion with internal reference and temperature sensor input, while DAC12 delivers 12-bit voltage output on P1.4/A3−/DAC0.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle; enables deterministic real-time control in ultra-low-power sensor nodes. |
| Flash / RAM | 16KB + 256B Flash / 256B RAM; sufficient for firmware with integrated LCD UI, ADC data processing, and BSL-based field updates. |
| ADC Resolution | 16-bit sigma-delta (SD16_A); supports high-precision analog sensing (e.g., strain gauges, thermistors) with internal reference and five differential inputs. |
| DAC Output | 12-bit voltage-output DAC (DAC12); provides calibrated analog feedback or bias control on dedicated P1.4 pin. |
| Power Consumption | Active: 250 μA @ 1 MHz, 2.2 V; Standby: 1.1 μA; Off (RAM retention): 0.1 μA - optimized for multi-year battery life in handheld meters. |
| LCD Drive | Integrated LCD_A driver supporting static/2–4-MUX displays up to 56 segments; includes regulated charge pump and software-controllable contrast. |
| Operating Voltage | 1.8 V to 3.6 V supply range; compatible with single-cell Li-ion, LiFePO₄, or dual-AA alkaline battery systems. |
Pinout & Package
Package: 48-pin QFN (RGZ), 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0 | Timer_A capture/compare input 0 / BSL transmit | Primary UART TX for bootloader communication; also serves as CCI0A input for precise edge-triggered timing. |
| P1.1/TA0/MCLK | Timer_A capture/compare input 0 / MCLK output / BSL receive | UART RX for BSL; configurable MCLK output enables clock distribution to external peripherals without added buffer. |
| P1.4/A3−/DAC0 | Analog input A3− / DAC12 voltage output | Dedicated 12-bit DAC output pin; supports closed-loop analog control or calibration voltage generation. |
| P6.0/A0+ to P6.3/A1− | Differential analog inputs (A0+, A0−, A1+, A1−) | Four fully differential ADC channels for noise-immune sensor interfacing (e.g., load cells, bridge transducers). |
| P5.0/S1 to P5.7/S4, P2.0/S13 to P2.7/S6, COM0–COM3 | LCD segment and common outputs | Drives up to 56 segments using 4 backplane commons; eliminates need for external LCD controller in compact displays. |
| TCK/TMS/TDI/TDO | JTAG test interface | Standard 4-wire JTAG for full-speed debugging, flash programming, and boundary-scan verification. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 μA off-mode current with RAM retention enables instant wake-up and long-term data logging in energy-harvested sensors. |
| Integrated sigma-delta ADC | 16-bit resolution with internal reference and five differential inputs eliminates external precision reference and signal-conditioning ICs. |
| On-chip LCD driver | Supports 4-MUX 56-segment displays with software-adjustable contrast and charge-pump regulation - reduces BOM count in portable instrumentation. |
| Bootstrap loader (BSL) | UART-based flash programming with password protection allows field firmware updates without JTAG hardware. |
| FLL+ clock system | Digital frequency-locked loop stabilizes DCO to crystal-derived ACLK; achieves <6 μs wake-up from LPM4 to active mode. |
Applications
| Smart Energy Metering | Portable Medical Sensors |
|---|---|
Use Scenario: Single-phase electricity meter with LCD display, current/voltage sensing, and tamper detection. IC Role / Device Role / Timing Role: Primary MCU executing metrology algorithms, driving 4-MUX LCD, managing sigma-delta ADC sampling at 128× oversampling, and handling secure BSL updates. Use Value: Integrated 16-bit ADC and LCD driver reduce component count by ≥3 ICs; 0.1 μA off-mode extends battery backup to >10 years. | Use Scenario: Handheld blood glucose monitor with electrochemical sensor interface and segmented LCD readout. IC Role / Device Role / Timing Role: Analog front-end controller acquiring differential sensor signals via SD16_A, applying calibration via DAC12, and updating LCD segments every 2 seconds. Use Value: Five differential ADC inputs support ratiometric sensor measurement; internal temperature sensor enables automatic gain compensation. |
| Digital Thermostats | Industrial Handheld Testers |
Use Scenario: Battery-powered HVAC thermostat with ambient temperature/humidity sensing and 32-segment LCD UI. IC Role / Device Role / Timing Role: System-on-chip managing I²C sensor reads, PID control loop execution, LCD refresh, and wake-up from LPM3 on button press. Use Value: 1.8–3.6 V operation matches coin-cell or AA battery discharge curve; 250 μA active current enables >2-year runtime on two AA cells. | Use Scenario: Portable multimeter with auto-ranging, analog bar graph, and backlight-free LCD display. IC Role / Device Role / Timing Role: Mixed-signal processor digitizing AC/DC voltage/current via sigma-delta ADC, computing RMS values, and driving 56-segment LCD with dynamic contrast. Use Value: On-chip charge pump delivers stable LCD voltage independent of battery level; 16-bit ADC resolution supports 0.1% measurement accuracy. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F4270IRGZT | 32KB Flash, same peripherals and pinout; higher memory for complex UI or data logging. | Required when firmware exceeds 16KB or needs extended EEPROM emulation in info memory. | Select if future firmware growth or OTA update storage is required; identical layout and driver compatibility. |
| MSP430F2274IRHAT | 16KB Flash, 1KB RAM, no integrated LCD driver; 40-pin QFN; lacks sigma-delta ADC (only 10-bit SAR). | Suitable for non-LCD sensor nodes needing more RAM or faster ADC sampling (200 ksps SAR vs 16-bit SD at ~100 sps). | Choose when LCD is omitted and higher-speed sampling or larger RAM buffer is prioritized over precision analog integration. |
Compared with MSP430F4270IRGZT, the MSP430F4250IRGZT trades Flash capacity for cost-sensitive metering; versus MSP430F2274IRHAT, it delivers superior analog precision and display integration at the expense of RAM and sampling speed - making it optimal for LCD-equipped, battery-critical precision measurement.
Availability
MSP430F4250IRGZT is available at Aetrix Electronics and suitable for smart energy metering, portable medical sensors, digital thermostats, and industrial handheld testers requiring stable component supply and long-lifecycle support.
Supply support for MSP430F4250IRGZT 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 broad industrial and automotive design-in expertise.
The MSP430F42x0 product line targets ultralow-power portable measurement applications - integrating precision analog, LCD control, and efficient processing to extend battery life in handheld and remote sensor systems.
FAQ
What is the maximum operating frequency of the MSP430F4250IRGZT?
The MSP430F4250IRGZT supports a maximum system clock (MCLK) frequency of 8 MHz at 3.6 V supply, and 4.15 MHz at 1.8 V. This is achieved via the FLL+ module locking the DCO to ACLK (32.768 kHz crystal), enabling deterministic real-time performance while maintaining ultralow power consumption across the full 1.8–3.6 V operating range.
Does the MSP430F4250IRGZT support JTAG debugging and programming?
Yes, the MSP430F4250IRGZT supports full JTAG debugging and programming via the standard 4-pin interface (TCK, TMS, TDI, TDO) on pins 46, 45, 44, and 43 of the RGZ package. This enables real-time emulation, flash programming, and boundary-scan testing without requiring additional hardware beyond a TI MSP-FET or compatible debugger.
How many LCD segments can the MSP430F4250IRGZT drive, and what multiplexing options are supported?
The MSP430F4250IRGZT integrates the LCD_A peripheral capable of driving up to 56 segments using static, 2-MUX, 3-MUX, or 4-MUX configurations. It provides four common outputs (COM0–COM3) and dedicated segment drivers mapped across ports P2, P5, and P6 - eliminating external LCD controllers in compact, low-power display applications.
What analog inputs are available on the MSP430F4250IRGZT, and how is the ADC configured?
The MSP430F4250IRGZT features the SD16_A 16-bit sigma-delta ADC with five differential analog input pairs: A0±, A1±, A2±, A3±, and A4±. It includes an internal reference, temperature sensor, and VCC sense channel. Configuration is performed via SD16CCTL0 and SD16INCTL0 registers, supporting programmable gain, oversampling, and interrupt-driven conversion sequences.
Is the MSP430F4250IRGZT pin-compatible with other devices in the MSP430F42x0 family?
Yes, the MSP430F4250IRGZT is pin-compatible with the MSP430F4260IRGZT and MSP430F4270IRGZT in the RGZ (48-pin QFN) package. All share identical pin functions, electrical characteristics, and peripheral mappings - allowing hardware reuse across memory variants while scaling firmware capability based on Flash size (16KB/24KB/32KB).
MSP430F4250IRGZT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-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:
- 32
- Program Memory Size:
- 16KB (16K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 1x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F4250IRGZT FAQ
1.How can I place an order for MSP430F4250IRGZT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F4250IRGZT 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 MSP430F4250IRGZT reliable?
The price and inventory of MSP430F4250IRGZT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F4250IRGZT is usually 5 days.
3.What payment methods are accepted for MSP430F4250IRGZT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F4250IRGZT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F4250IRGZT?
MSP430F4250IRGZT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F4250IRGZT 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 MSP430F4250IRGZT?
For technical support, including MSP430F4250IRGZT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F4250IRGZT requirements.
6.How does Aetrix verify that MSP430F4250IRGZT is sourced from the original manufacturer or authorized distributors?
All MSP430F4250IRGZT 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 MSP430F4250IRGZT meets industry standards.
7.What is the process for return or replacement of MSP430F4250IRGZT?
All MSP430F4250IRGZT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F4250IRGZT, 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 MSP430F4250IRGZT part is unused and in its original packaging.
Return procedure for MSP430F4250IRGZT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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