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Texas Instruments MSP430F4260IRGZR
- Part No.:
- MSP430F4260IRGZR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-VFQFN Exposed Pad
- Datasheet:
-
MSP430F4260IRGZR.pdf
- Description:
- IC MCU 16BIT 24KB FLASH 48VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:3,991
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Product details
Overview
MSP430F4260IRGZR from Texas Instruments is an ultralow-power 16-bit mixed-signal microcontroller featuring 24KB+256B 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 handheld meters and digital thermostats.
For engineers reviewing the MSP430F4260IRGZR datasheet, MSP430F4260IRGZR pinout, MSP430F4260IRGZR application, or MSP430F4260IRGZR equivalent, key selection criteria include supply voltage range (1.8–3.6 V), active-mode current (250 μA at 1 MHz, 2.2 V), standby current (1.1 μA), wake-up time (<6 μs), and QFN-48 package compatibility with LCD segment/com drive requirements.
Technical Context
The MSP430F4260IRGZR 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 - all coordinated through JTAG and BSL interfaces on dedicated pins (TCK/TMS/TDI/TDO and P1.0/P1.1).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 125-ns instruction cycle time and 16 general-purpose registers |
| Memory | 24KB+256B Flash program memory + 256B RAM; supports in-system programming via CPU, JTAG, or BSL |
| ADC | 16-bit sigma-delta SD16_A with internal reference, five differential analog inputs, and temperature sensor input |
| DAC | 12-bit voltage-output DAC (DAC12) with 8-/12-bit mode support and A3−/DAC0 pin multiplexing |
| Power Consumption | Active mode: 250 μA @ 1 MHz, 2.2 V; Standby: 1.1 μA; Off mode (RAM retention): 0.1 μA |
| Operating Voltage | 1.8 V to 3.6 V supply range; flash programming requires ≥2.5 V |
| LCD Driver | Integrated LCD_A module supporting static, 2-/3-/4-MUX displays up to 56 segments with regulated charge pump and contrast control |
Pinout & Package
Package: 48-pin QFN (RGZ), 7 mm × 7 mm, 0.5 mm pitch, thermal pad connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| TCK (Pin 46) | JTAG test clock input | Required for boundary-scan debugging and flash programming via JTAG interface |
| RST/NMI (Pin 47) | Reset / nonmaskable interrupt input | Hardware reset trigger and NMI source; dual-function I/O during normal operation |
| P1.0/TA0 (Pin 22) | Timer_A capture/compare input / BSL transmit | Primary UART TX line for bootstrap loader communication and Timer_A channel 0 input |
| P1.1/TA0/MCLK (Pin 21) | Timer_A capture input / MCLK output / BSL receive | Primary UART RX line for BSL; also outputs system clock (MCLK) and accepts TA0 signal |
| P6.0/A0+ to P6.3/A1− (Pins 7–10) | Differential analog inputs | Four dedicated differential ADC input pairs supporting precision sensor interfacing |
| P5.0/S1 to P5.7/S4 (Pins 25–29) | LCD segment outputs | Five segment drivers (S0–S4); extended to 56 segments via P2.x, P6.x, and COM0–COM3 |
| COM0–COM3 (Pins 39, 40, 41, 42) | LCD common backplane outputs | Four independent common outputs enabling 4-MUX LCD drive configuration |
| LCDCAP/R23 (Pin 24) | LCD charge pump capacitor connection | External capacitor node for integrated regulated LCD voltage generation and contrast tuning |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | Wake-up from standby in <6 μs; LPM4 draws only 0.1 μA with RAM retention - extends battery life in portable measurement devices |
| Integrated analog subsystem | 16-bit sigma-delta ADC with internal reference eliminates external precision reference; supports differential sensor inputs and on-chip temperature sensing |
| On-chip LCD driver | Drives up to 56 segments with software-controllable contrast and regulated charge pump - removes need for external LCD bias IC |
| Flexible clock system | FLL+ module locks DCO to 32.768 kHz crystal (ACLK) and scales to 8 MHz MCLK; enables precise timing and fast wake-up without external high-frequency crystal |
| Secure programming interface | Bootstrap loader accessible via UART (P1.0/P1.1) with password protection; JTAG fuse allows permanent lockout of debug access |
Applications
| Handheld Digital Multimeter | Digital Thermostat |
|---|---|
|
Use Scenario: Portable, battery-operated instrument measuring voltage, current, and resistance with auto-ranging and hold functions. IC Role / Device Role: Main system controller executing measurement algorithms, driving segmented LCD display, and managing analog front-end via SD16_A and DAC12. Use Value: Ultralow active and standby current (250 μA / 1.1 μA) enables multi-year battery life; integrated LCD driver reduces BOM count by eliminating external bias IC. |
Use Scenario: Wall-mounted HVAC control unit monitoring ambient temperature and humidity, regulating heating/cooling cycles, and displaying setpoint and status. IC Role / Device Role: Central MCU acquiring sensor data (temperature via SD16_A, humidity via external ADC), controlling relay outputs, and updating 4-digit LCD display. Use Value: On-chip 16-bit sigma-delta ADC provides high-resolution temperature measurement; 56-segment LCD support enables clear multi-parameter UI without external display controller. |
| Remote-Controlled Energy Monitor | Portable Gas Detector |
|
Use Scenario: Wireless submetering device installed on circuit breakers to monitor real-time power consumption and transmit data via RF module. IC Role / Device Role: Data acquisition engine sampling current transformers and voltage dividers, performing RMS calculations, and managing low-duty-cycle RF transmission. Use Value: Five low-power modes allow deep sleep between measurements; integrated DAC12 enables precise calibration of analog front-end gain stages. |
Use Scenario: Intrinsically safe, battery-powered detector measuring toxic gas concentration using electrochemical sensors and alarming via buzzer and LED. IC Role / Device Role: Sensor signal conditioner and alarm manager - digitizing low-level sensor output, detecting threshold breaches, and driving audible/visual alerts. Use Value: Differential analog inputs reject common-mode noise from sensor cables; brownout detector ensures reliable reset during battery voltage sag. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F4250IRGZ | 16KB+256B Flash (vs. 24KB+256B); identical peripherals, pinout, and package | Suitable for simpler firmware with smaller code footprint; same LCD, ADC, and power specs | Select when application firmware fits within 16KB Flash and cost optimization is prioritized |
| MSP430F4270IRGZ | 32KB+256B Flash (vs. 24KB+256B); otherwise identical architecture, peripherals, and RGZ-48 package | Supports larger firmware images, future feature expansion, or bootloader + application partitioning | Choose when firmware size exceeds 24KB or long-term scalability is required |
Compared with MSP430F4250IRGZ and MSP430F4270IRGZ, the MSP430F4260IRGZR offers optimal Flash capacity for mid-complexity metering and control applications - balancing code space, BOM cost, and upgrade headroom without requiring PCB changes.
Availability
MSP430F4260IRGZR is available at Aetrix Electronics and suitable for handheld meters, digital thermostats, and portable gas detectors requiring stable component supply, long-term lifecycle support, and consistent QFN-48 packaging.
Supply support for MSP430F4260IRGZR 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 MSP430F4260IRGZR belongs to the MSP430F42x0 family - designed specifically for ultralow-power, battery-operated measurement and display applications requiring integrated analog peripherals and LCD support.
FAQ
What is the maximum operating frequency of the MSP430F4260IRGZR at 3.6 V?
The MSP430F4260IRGZR supports a maximum system clock (MCLK) frequency of 8 MHz when operating at 3.6 V, as specified in the recommended operating conditions. This frequency is generated by the FLL+ module locking the DCO to the 32.768 kHz watch crystal and scaling it accordingly. The MSP430F4260IRGZR maintains full functionality including ADC, DAC, and LCD driver operation at this speed.
Does the MSP430F4260IRGZR support hardware UART communication?
The MSP430F4260IRGZR does not include a dedicated hardware UART peripheral. Instead, it relies on software-based UART implementation using Timer_A and GPIO pins - commonly configured on P1.0 (TX) and P1.1 (RX) for bootstrap loader communication. The MSP430F4260IRGZR's BSL uses this bit-banged UART, and users must implement custom UART routines for application-level serial communication.
How many LCD segments can the MSP430F4260IRGZR drive, and what MUX configurations are supported?
The MSP430F4260IRGZR's LCD_A module supports up to 56 segments across static, 2-MUX, 3-MUX, and 4-MUX configurations. It provides four common outputs (COM0–COM3) and multiple segment pins distributed across P1, P2, P5, and P6 ports. The MSP430F4260IRGZR achieves full 56-segment drive in 4-MUX mode using all available segment and common lines, with contrast controlled via LCDCAP and LCDREF pins.
Is the MSP430F4260IRGZR pin-compatible with other devices in the MSP430F42x0 family?
Yes, the MSP430F4260IRGZR in the RGZ package is fully pin-compatible with the MSP430F4250IRGZ and MSP430F4270IRGZ - sharing identical pin functions, electrical characteristics, and package dimensions. This allows direct substitution within the same PCB layout when Flash size requirements change, provided firmware is recompiled for the target device's memory map.
What programming interfaces are supported by the MSP430F4260IRGZR?
The MSP430F4260IRGZR supports three programming interfaces: JTAG (via TCK/TMS/TDI/TDO pins), bootstrap loader (BSL) over UART using P1.0/P1.1, and in-system programming via the CPU. All methods support Flash and information memory programming. The MSP430F4260IRGZR's BSL is protected by a user-defined password, and JTAG access can be permanently disabled using the security fuse.
MSP430F4260IRGZR 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:
- 24KB (24K 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:
MSP430F4260IRGZR FAQ
1.How can I place an order for MSP430F4260IRGZR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F4260IRGZR 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 MSP430F4260IRGZR reliable?
The price and inventory of MSP430F4260IRGZR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F4260IRGZR is usually 5 days.
3.What payment methods are accepted for MSP430F4260IRGZR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F4260IRGZR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F4260IRGZR?
MSP430F4260IRGZR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F4260IRGZR 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 MSP430F4260IRGZR?
For technical support, including MSP430F4260IRGZR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F4260IRGZR requirements.
6.How does Aetrix verify that MSP430F4260IRGZR is sourced from the original manufacturer or authorized distributors?
All MSP430F4260IRGZR 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 MSP430F4260IRGZR meets industry standards.
7.What is the process for return or replacement of MSP430F4260IRGZR?
All MSP430F4260IRGZR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F4260IRGZR, 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 MSP430F4260IRGZR part is unused and in its original packaging.
Return procedure for MSP430F4260IRGZR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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