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Texas Instruments MSP430FG4270IRGZR
- Part No.:
- MSP430FG4270IRGZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430FG4270IRGZR.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 48VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FG4270IRGZR from Texas Instruments is a 32KB Flash, 256B RAM ultralow-power mixed-signal microcontroller featuring a 16-bit RISC CPU, 16-bit sigma-delta ADC with internal reference and five differential analog inputs, 12-bit DAC, two configurable operational amplifiers, Timer_A3 with three capture/compare registers, and integrated LCD driver supporting up to 56 segments - deployed in portable sensor systems and battery-powered metering.
For engineers reviewing the MSP430FG4270IRGZR datasheet, MSP430FG4270IRGZR pinout, MSP430FG4270IRGZR application, or MSP430FG4270IRGZR equivalent, key selection criteria include its 1.8–3.6 V supply range, sub-6 μs wake-up from standby mode, 250 μA active current at 1 MHz/2.2 V, integrated LCD charge pump with software contrast control, and QFN-48 (RGZ) package compatibility with space-constrained embedded designs.
Technical Context
The MSP430FG4270IRGZR implements the FLL+ clock system with digitally controlled oscillator (DCO), enabling stable MCLK generation from a 32.768 kHz watch crystal and sub-6 μs wake-up from LPM4. Its SD16_A module provides 16-bit sigma-delta conversion with programmable gain and internal temperature/VCC sensing, while DAC12 delivers voltage-mode 12-bit output on P1.4.
Two fully configurable op-amps (OA0/OA1) support programmable input multiplexing (six total inputs per OA), feedback configuration, and direct connection to ADC inputs - enabling precision front-end signal conditioning without external components. The LCD_A peripheral integrates regulated charge pump, segment/common drivers, and software-adjustable bias voltage for static to 4-MUX displays.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Flash Memory | 32 KB main memory + 256 B information memory - sufficient for complex sensor fusion firmware with bootloader and calibration data storage. |
| RAM | 256 B - supports real-time buffering of ADC samples, LCD frame data, and interrupt context stacks in ultra-low-power operation. |
| ADC Resolution | 16-bit sigma-delta with internal reference - delivers high-precision measurement of low-level analog sensor outputs (e.g., thermocouples, strain gauges). |
| DAC Output | 12-bit voltage-mode output on P1.4 - enables closed-loop control signals or programmable bias generation for analog front ends. |
| Operating Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, Li-polymer, or dual-AA alkaline power sources without external regulators. |
| Wake-Up Time | <6 μs from LPM4 - allows rapid response to external interrupts while maintaining multi-year battery life in intermittent-sensing applications. |
| LCD Support | Up to 56 segments with 4-MUX capability and integrated charge pump - eliminates need for external LCD bias IC in handheld meters and thermostats. |
Pinout & Package
Package: 48-pin QFN (RGZ), 7 mm × 7 mm, 0.5 mm pitch, exposed thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TA0 | Timer_A capture/compare input 0 / BSL transmit | Primary UART TX for bootstrap loader programming; also serves as CCI0A input for pulse-width measurement. |
| P1.1/TA0/MCLK | Timer_A capture/compare input 0 / MCLK output | BSL receive pin; MCLK output enables external clock monitoring or synchronization of companion ICs. |
| P1.4/A3−/OA1I0/DAC0 | Analog input A3− / OA1 non-inverting input / DAC12 output | Shared terminal supports DAC output driving OA1+, enabling programmable gain stages or reference voltage synthesis. |
| P6.0/A0+/OA0O | Analog input A0+ / OA0 output | Direct OA0 output connection to SD16_A channel 0 positive input - simplifies single-ended or differential sensor interface paths. |
| COM0–COM3 | LCD common backplane outputs | Four dedicated COM outputs enable 4-MUX LCD drive with minimal external components and software-controlled duty cycle. |
| TCK/TMS/TDI/TDO | JTAG test clock, mode select, data in/out | Fully compliant IEEE 1149.1 interface for in-circuit debugging, flash programming, and boundary-scan testing. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-Power Operation | 0.1 μA off-mode (RAM retention), 1.1 μA standby, 250 μA active @ 1 MHz/2.2 V - extends battery life in energy-harvested or coin-cell devices. |
| Integrated Signal Chain | On-chip 16-bit sigma-delta ADC, 12-bit DAC, and two op-amps eliminate discrete signal-conditioning components and reduce PCB area by ≥30%. |
| Programmable LCD Driver | Software-configurable contrast via LCDAVCTL registers and integrated charge pump - enables consistent display visibility across temperature and battery voltage ranges. |
| Secure Bootloader | UART-based BSL with password protection and memory access control - allows field firmware updates without JTAG hardware. |
| FLL+ Clock System | Digital frequency-locked loop stabilizes DCO to crystal reference; supports ACLK/SMCLK/MCLK with programmable dividers - ensures timing accuracy without external oscillators. |
Applications
| Hand-Held Meters | Thermostats |
|---|---|
Use Scenario: Portable multimeters and environmental sensors requiring high-resolution analog measurement and local LCD display. IC Role / Device Role / Timing Role: Central controller managing sigma-delta ADC sampling, DAC-based reference generation, and 4-MUX LCD refresh at 32 Hz. Use Value: Integrated op-amps condition thermistor/RTD signals directly; 32 KB Flash stores calibration coefficients and UI logic without external memory. |
Use Scenario: Residential HVAC controllers needing precise temperature sensing, user interface, and relay/valve actuation. IC Role / Device Role / Timing Role: Mixed-signal processor executing PID loops, driving segmented LCD, and generating PWM for fan speed control via Timer_A3. Use Value: Sub-6 μs wake-up enables responsive button handling; internal temperature sensor reduces BOM cost versus external ICs. |
| Digital Timers | Remote Controls |
Use Scenario: Programmable kitchen timers and industrial process timers with LCD readout and audible alerts. IC Role / Device Role / Timing Role: Real-time counter using Basic Timer1 and ACLK; LCD_A drives 32-segment display; DAC0 generates tone waveform. Use Value: 256 B RAM buffers timer state and alarm settings during deep sleep; brownout detector prevents erratic behavior during battery depletion. |
Use Scenario: IR remote controls for consumer electronics with low-power RF or IR transmission and status feedback. IC Role / Device Role / Timing Role: Low-duty-cycle sensor hub reading buttons, driving LED/LCD indicators, and modulating IR carrier via TA0 output. Use Value: Standby current of 1.1 μA enables >2-year shelf life on CR2032; integrated op-amps condition ambient light sensor for auto-brightness. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FG4250IRGZR | 16 KB Flash, 256 B RAM, identical peripherals and pinout | Lower code capacity limits firmware complexity; suitable for simpler sensor nodes with fixed functionality | Select when application firmware fits within 16 KB and no future feature expansion is planned. |
| MSP430FG4260IRGZR | 24 KB Flash, 256 B RAM, same RGZ package and peripheral set | Intermediate memory size supports moderate algorithmic processing (e.g., basic filtering) without full 32 KB overhead | Choose for balanced cost/performance where 24 KB suffices for production firmware and safety margin. |
Compared with MSP430FG4250IRGZR and MSP430FG4260IRGZR, the MSP430FG4270IRGZR provides maximum on-chip program storage for advanced sensor fusion, secure bootloader implementation, and future firmware updates - making it optimal for long-lifecycle, field-upgradable devices.
Availability
MSP430FG4270IRGZR is available at Aetrix Electronics and suitable for hand-held meters, thermostats, digital timers, and remote controls requiring stable component supply, long-term manufacturability, and TI's qualified automotive-grade process.
Supply support for MSP430FG4270IRGZR 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 ultralow-power design.
The MSP430FG42x0 product line targets portable, battery-operated measurement systems requiring high-precision analog integration, extended runtime, and compact form factor - exemplified by the MSP430FG4270IRGZR's 32 KB Flash and integrated LCD driver.
FAQ
What is the maximum operating frequency of the MSP430FG4270IRGZR's CPU?
The MSP430FG4270IRGZR features a 16-bit RISC CPU with a 125-ns instruction cycle time, corresponding to a maximum sustained core clock frequency of 8 MHz. This is achieved via the FLL+ module locking the DCO to a multiple of the 32.768-kHz watch crystal, enabling precise timing without external high-frequency crystals. The MSP430FG4270IRGZR maintains this performance across its 1.8–3.6 V supply range.
Does the MSP430FG4270IRGZR support JTAG debugging and in-system programming?
Yes, the MSP430FG4270IRGZR supports full IEEE 1149.1 JTAG debugging and programming through dedicated TCK, TMS, TDI, and TDO pins (RGZ pins 46, 45, 44, 43). It enables real-time emulation, flash erase/write, and boundary-scan testing. The MSP430FG4270IRGZR also supports UART-based bootstrap loader (BSL) programming via P1.0/P1.1, providing flexibility for production and field updates.
How many LCD segments can the MSP430FG4270IRGZR drive, and what multiplexing configurations are supported?
The MSP430FG4270IRGZR's LCD_A peripheral drives up to 56 segments using static, 2-MUX, 3-MUX, or 4-MUX configurations. It provides four COM outputs (COM0–COM3) and 14 SEG outputs (S0–S4, S5, S6–S13), enabling flexible display layouts. The integrated charge pump generates regulated LCD bias voltage independent of VCC, and contrast is software-adjustable via LCDAVCTL registers - all implemented within the MSP430FG4270IRGZR without external components.
What analog input channels are available for the 16-bit sigma-delta ADC on the MSP430FG4270IRGZR?
The MSP430FG4270IRGZR's SD16_A module supports five differential analog inputs: A0±, A1±, A2±, A3±, and A4± - mapped to P6.0/P6.1, P6.2/P6.3, P1.7/P1.6, P1.5/P1.4, and P1.3/P1.2 respectively. It also includes internal VCC and temperature sensor channels. All inputs are selectable via SD16INCTL0 register, and the module provides 16-bit resolution with programmable gain and internal reference - confirmed in the SLAS556A datasheet for the MSP430FG4270IRGZR.
Is the MSP430FG4270IRGZR pin-compatible with other members of the MSP430FG42x0 family in the RGZ package?
Yes, the MSP430FG4270IRGZR is fully pin-compatible with MSP430FG4250IRGZR and MSP430FG4260IRGZR in the 48-pin QFN (RGZ) package. All share identical pin functions, electrical characteristics, and peripheral mappings per the SLAS556A datasheet. This allows hardware reuse across variants - firmware and layout remain unchanged when scaling Flash size from 16 KB to 32 KB within the same RGZ footprint.
MSP430FG4270IRGZR 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:
- 32KB (32K 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:
MSP430FG4270IRGZR FAQ
1.How can I place an order for MSP430FG4270IRGZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FG4270IRGZR 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 MSP430FG4270IRGZR reliable?
The price and inventory of MSP430FG4270IRGZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FG4270IRGZR is usually 5 days.
3.What payment methods are accepted for MSP430FG4270IRGZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FG4270IRGZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FG4270IRGZR?
MSP430FG4270IRGZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FG4270IRGZR 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 MSP430FG4270IRGZR?
For technical support, including MSP430FG4270IRGZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FG4270IRGZR requirements.
6.How does Aetrix verify that MSP430FG4270IRGZR is sourced from the original manufacturer or authorized distributors?
All MSP430FG4270IRGZR 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 MSP430FG4270IRGZR meets industry standards.
7.What is the process for return or replacement of MSP430FG4270IRGZR?
All MSP430FG4270IRGZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FG4270IRGZR, 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 MSP430FG4270IRGZR part is unused and in its original packaging.
Return procedure for MSP430FG4270IRGZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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