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Texas Instruments MSP430FG4250IDLR
- Part No.:
- MSP430FG4250IDLR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-BSSOP (0.295", 7.50mm Width)
- Datasheet:
-
MSP430FG4250IDLR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 48SSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,279
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Product details
Overview
MSP430FG4250IDLR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 16KB+256B Flash, 256B RAM, a 16-bit sigma-delta ADC with internal reference and five differential analog inputs, a 12-bit DAC, two configurable operational amplifiers, and integrated LCD driver supporting up to 56 segments - deployed in portable sensor systems and battery-powered metering devices.
For engineers reviewing the MSP430FG4250IDLR datasheet, MSP430FG4250IDLR pinout, MSP430FG4250IDLR application, or MSP430FG4250IDLR equivalent, key selection considerations include active-mode current (250 μA @ 1 MHz, 2.2 V), standby-mode power (1.1 μA), wake-up latency (<6 μs), 48-pin SSOP package, and integrated analog front-end capability for direct sensor interface without external signal conditioning.
Technical Context
The MSP430FG4250IDLR 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, and SMCLK - all configurable across six operating modes including LPM4 (0.1 μA off-mode with RAM retention).
Peripherals are memory-mapped and accessible via standard instructions: SD16_A provides 16-bit sigma-delta conversion with internal VREF and temperature sensing; DAC12 delivers voltage-output 12-bit conversion; OA0/OA1 support programmable gain and feedback configurations for analog signal conditioning prior to ADC sampling; LCD_A drives static/2–4-MUX displays with software-controlled contrast via regulated charge pump.
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 program memory + 256B RAM; sufficient for firmware with integrated signal processing and display logic. |
| ADC | 16-bit sigma-delta SD16_A with internal reference and five differential analog inputs; supports high-resolution sensor digitization without external reference IC. |
| DAC | 12-bit DAC12 voltage-output DAC; provides programmable analog output for calibration, biasing, or feedback control loops. |
| Power Consumption | Active mode: 250 μA @ 1 MHz, 2.2 V; Standby: 1.1 μA; Off mode (RAM retention): 0.1 μA - extends coin-cell battery life to multi-year operation. |
| LCD Driver | Integrated LCD_A supporting up to 56 segments with 2–4 multiplexing and software-adjustable contrast; eliminates need for external LCD controller or charge-pump IC. |
| Operating Voltage | 1.8 V to 3.6 V supply range; compatible with single-cell Li-ion, LiFePO₄, or dual-AA alkaline battery systems without regulation. |
Pinout & Package
Package: 48-pin Plastic SSOP (DL), 10.2 mm × 6.2 mm body, 0.5 mm pitch. Pinout validated per SLAS556A Rev. August 2007, DL package top view.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0 | Timer_A capture/compare input / BSL transmit | Primary UART TX for bootstrap loader programming; also serves as Timer_A channel 0 input for pulse-width measurement. |
| P1.1/TA0/MCLK | Timer_A capture input / MCLK output / BSL receive | Primary UART RX for BSL; outputs system main clock for external synchronization or debug timing reference. |
| P6.0/A0+/OA0O | Analog input positive / OA0 output | Configurable as differential ADC input or op-amp output - enables direct connection to transducer bridges or sensor amplification stages. |
| P6.1/A0−/OA0FB | Analog input negative / OA0 feedback | Supports instrumentation amplifier configuration with OA0; allows precision gain-setting using external resistors on feedback path. |
| COM0–COM3 | LCD backplane outputs | Four common outputs enable 4-MUX LCD drive; paired with 16 segment outputs (S0–S15) for up to 56-segment display control. |
| RST/NMI | Reset / nonmaskable interrupt input | Hardware reset initiation and NMI event handling; double-function pin requires external pull-up for reliable reset assertion. |
| TCK/TMS/TDI/TDO | JTAG test interface | Fully compliant IEEE 1149.1 boundary-scan interface for in-circuit debugging, flash programming, and production testing. |
Key Features
| Feature | Design Value |
|---|---|
| Five low-power modes with sub-6-μs wake-up | Enables rapid response to sensor events while maintaining multi-year battery life in intermittent-read applications like smart meters. |
| Integrated 2-op-amp analog front-end | Eliminates external op-amps for sensor signal conditioning; OA0/OA1 support programmable gain, filtering, and differential-to-single-ended conversion. |
| On-chip LCD charge pump with contrast control | Generates stable LCD bias voltage independent of supply; contrast adjusted in firmware via LCDAVCTL registers - no external potentiometer required. |
| Bootstrap loader (BSL) with password protection | Enables field firmware updates over UART without JTAG hardware; secured by user-defined password stored in information memory. |
| Programmable code protection fuse | Prevents unauthorized read-out of Flash contents; security fuse is one-time programmable and irreversible. |
Applications
| Portable Handheld Meter | Thermostat Control Unit |
|---|---|
|
Use Scenario: Battery-powered multimeter measuring voltage, current, and resistance with LCD display and auto-ranging. IC Role / Device Role / Timing Role: Central controller executing measurement algorithms, driving 4-MUX LCD, managing button inputs, and controlling analog front-end via SD16_A and OA0/OA1. Use Value: Integrated 16-bit ADC, DAC, and LCD driver reduce BOM count by ≥4 discrete components; 0.1 μA off-mode extends AA battery life beyond 5 years. |
Use Scenario: Residential HVAC thermostat with ambient temperature sensing, setpoint adjustment, and segmented LCD display. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring thermistor/RTD data via SD16_A, computing PID control output, updating display, and managing relay drivers. Use Value: On-chip op-amps condition thermistor bridge signals; DAC12 provides precise reference voltage for comparator-based fan staging; no external signal chain needed. |
| Digital Timer/Stopwatch | Remote Sensor Node |
|
Use Scenario: Low-cost kitchen timer with push-button interface, audible alert, and 32-segment LCD countdown display. IC Role / Device Role / Timing Role: Real-time counter using Timer_A3 and Basic Timer1; manages segment mapping in LCD_A; handles debounce and alarm generation. Use Value: 16-bit Timer_A3 with three capture/compare registers enables simultaneous timing, PWM buzzer drive, and interrupt scheduling - all in one peripheral. |
Use Scenario: Wireless environmental sensor node (temperature/humidity) powered by energy harvesting, transmitting data intermittently. IC Role / Device Role / Timing Role: Ultra-low-power acquisition engine: wakes on timer interrupt, samples sensors via SD16_A, processes data, triggers RF transmission, then returns to LPM4. Use Value: 1.1 μA standby current and <6 μs wake-up minimize energy loss during sleep; integrated ADC/DAC reduces quiescent current of external analog circuitry. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FG4260IDLR | 24KB+256B Flash, same peripherals and package; higher code capacity for complex algorithms or larger display buffers. | Better suited for applications requiring extended firmware features (e.g., multi-language UI, advanced calibration tables) without changing PCB layout. | Select when >16KB Flash is needed but identical analog/LCD/peripheral integration is required. |
| MSP430F2274IRHAT | 16KB Flash, 1KB RAM, no integrated LCD driver or sigma-delta ADC; features USCI UART/SPI/I²C and 10-bit SAR ADC. | Targeted at communication-centric designs needing serial interfaces over display or high-resolution analog acquisition. | Choose for cost-sensitive, non-LCD applications where serial connectivity and moderate-speed ADC suffice. |
Compared with MSP430FG4260IDLR, the MSP430FG4250IDLR trades Flash capacity for lower unit cost while retaining identical analog subsystem performance and LCD capability; versus MSP430F2274IRHAT, it delivers superior analog resolution and display integration at the expense of serial interface flexibility and RAM size.
Availability
MSP430FG4250IDLR is available at Aetrix Electronics and suitable for portable handheld meters, thermostat control units, digital timers, and remote sensor nodes requiring stable component supply and long-term industrial availability.
Supply support for MSP430FG4250IDLR 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 low-power microcontroller design.
The MSP430FG42x0 product line targets battery-operated measurement and display applications, integrating high-precision analog peripherals, ultra-low-power operation, and LCD control into a single chip to minimize system-level complexity.
FAQ
What is the maximum operating frequency of the MSP430FG4250IDLR?
The MSP430FG4250IDLR operates with a digitally controlled oscillator (DCO) stabilized by the FLL+ module, achieving up to 8 MHz system clock (MCLK) when driven from a 32.768 kHz watch crystal. Its 125-ns instruction cycle time corresponds to a 8 MHz CPU clock, confirmed in SLAS556A Section 1. The DCO stabilizes in less than 6 μs, enabling rapid wake-up from low-power modes.
Does the MSP430FG4250IDLR support JTAG debugging?
Yes, the MSP430FG4250IDLR supports full IEEE 1149.1 JTAG boundary-scan debugging via dedicated pins TCK (pin 4), TMS (pin 3), TDI/TCLK (pin 2), and TDO/TDI (pin 1) in the DL package. These pins enable in-circuit emulation, flash programming, and real-time variable inspection using standard TI MSP-FET tools and Code Composer Studio.
How many LCD segments can the MSP430FG4250IDLR drive?
The MSP430FG4250IDLR's LCD_A peripheral supports up to 56 segments using static, 2-MUX, 3-MUX, or 4-MUX configurations. It provides four COM outputs (COM0–COM3) and 16 segment outputs (S0–S15), enabling flexible display layouts - for example, 4×14 segment arrays or alphanumeric modules - with software-controlled contrast via internal charge pump.
What analog inputs are available on the MSP430FG4250IDLR?
The MSP430FG4250IDLR provides five differential analog inputs for its 16-bit SD16_A sigma-delta ADC: A0±, A1±, A2±, A3±, and A4±. These map to pins P6.0/P6.1, P6.2/P6.3, P1.7/P1.6, P1.5/P1.4, and P1.3/P1.2 respectively. Internal temperature sensor and VCC sense channels are also accessible, enabling self-calibration and supply monitoring without external components.
Is the MSP430FG4250IDLR pin-compatible with other MSP430FG42x0 variants?
Yes, the MSP430FG4250IDLR shares identical pinout and package (48-pin SSOP, DL) with MSP430FG4260IDLR and MSP430FG4270IDLR. All FG42x0 DL-package devices use the same terminal functions and electrical characteristics, allowing drop-in replacement for Flash capacity upgrades without PCB revision - provided firmware accommodates memory map differences.
MSP430FG4250IDLR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-BSSOP (0.295", 7.50mm Width)
- 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 5x16b; D/A 1x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FG4250IDLR FAQ
1.How can I place an order for MSP430FG4250IDLR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FG4250IDLR 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 MSP430FG4250IDLR reliable?
The price and inventory of MSP430FG4250IDLR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FG4250IDLR is usually 5 days.
3.What payment methods are accepted for MSP430FG4250IDLR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FG4250IDLR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FG4250IDLR?
MSP430FG4250IDLR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FG4250IDLR 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 MSP430FG4250IDLR?
For technical support, including MSP430FG4250IDLR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FG4250IDLR requirements.
6.How does Aetrix verify that MSP430FG4250IDLR is sourced from the original manufacturer or authorized distributors?
All MSP430FG4250IDLR 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 MSP430FG4250IDLR meets industry standards.
7.What is the process for return or replacement of MSP430FG4250IDLR?
All MSP430FG4250IDLR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FG4250IDLR, 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 MSP430FG4250IDLR part is unused and in its original packaging.
Return procedure for MSP430FG4250IDLR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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