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Texas Instruments MSP430FR2311IRGYR
- Part No.:
- MSP430FR2311IRGYR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2311IRGYR.pdf
- Description:
- IC MCU 16BIT 3.75KB FRAM 16VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR2311IRGYR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with integrated transimpedance amplifier (TIA), 8-channel 10-bit ADC, smart analog combo (SAC-L1) op amp, and enhanced USCI serial interfaces. It operates from 1.8 V to 3.6 V, delivers 126 µA/MHz active current, and supports LPM4.5 shutdown at 32 nA - enabling long-life battery operation in portable sensing applications such as smoke detectors and wearable health monitors.
For engineers reviewing the MSP430FR2311IRGYR datasheet, MSP430FR2311IRGYR pinout, MSP430FR2311IRGYR application, or MSP430FR2311IRGYR equivalent, key selection considerations include its 12 I/O count in 4 mm × 3.5 mm VQFN package, TIA input leakage of 5 pA (enabled only on TSSOP16 per datasheet), FRAM endurance of 1015 write cycles, and dual eUSCI modules supporting UART/I²C/SPI with remap capability.
Technical Context
The MSP430FR2311IRGYR implements a 16-bit RISC CPU with constant generator and digitally controlled oscillator (DCO) achieving ±1% accuracy at room temperature using on-chip reference. Its clock system integrates REFO (32 kHz), VLO (10 kHz), MODOSC, LFXT, and HFXT up to 16 MHz, with programmable MCLK/SMCLK prescalers for precise peripheral timing control.
Peripherals are partitioned across low-power domains: RTC counter and backup memory remain active in LPM3.5, while TIA, SAC-L1, and eCOMP operate in configurable high-/low-power modes. The TIA supports half-rail input, rail-to-rail output, and multiple input selections - but low-leakage negative input (5 pA) is explicitly restricted to TSSOP16 packages and not enabled on RGY16 per Section 1.1 and Table 4-1.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generator; enables compact, efficient code for resource-constrained embedded sensing. |
| FRAM Capacity | 3.75 KB program/data FRAM with ECC and 1015 write endurance; eliminates flash wear-out concerns in frequent data logging. |
| ADC Resolution | 10-bit SAR ADC with 8 single-ended channels, 200 ksps sample rate, and internal 1.5-V reference; suitable for precision analog sensor interfacing. |
| TIA Input Leakage | 5 pA (low-leakage mode); confirmed functional only on TSSOP16 packages - not supported on MSP430FR2311IRGYR's VQFN package. |
| Low-Power Modes | LPM4.5 shutdown draws 32 nA without SVS; LPM3.5 RTC + backup RAM consumes 0.71 µA with 32.768-kHz crystal - critical for multi-year battery life. |
| Serial Interfaces | eUSCI_A0 (UART/IrDA/SPI) and eUSCI_B0 (SPI/I²C with remap); enables flexible host communication and sensor hub connectivity. |
| I/O Count & Package | 12 general-purpose I/Os in 16-pin VQFN (RGY16, 4 mm × 3.5 mm); all support capacitive touch and interrupt wake-up from all LPMs. |
Pinout & Package
Package: 16-pin VQFN (RGY16), 4 mm × 3.5 mm body size, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC / DVSS | Power supply pair | Main digital/analog supply (1.8–3.6 V); requires 4.7–10 µF bulk + 0.1 µF ceramic decoupling per datasheet Section 1.4. |
| RST/NMI/SBWTDIO | Reset & debug I/O | Active-low reset with NMI capability; also serves as Spy-Bi-Wire data line for programming and debugging. |
| TEST/SBWTCK | Debug clock | Spy-Bi-Wire clock input; required for JTAG/SBW interface during firmware load and real-time debugging. |
| P1.0–P1.7, P2.0–P2.1 | Configurable GPIO | 12 total I/Os; each supports capacitive touch, interrupt wake-up, and peripheral function multiplexing (e.g., UCA0TXD, UCB0SCL, TB1.1). |
| TIA0+ / TIA0− / TIA0O | TIA analog terminals | Non-inverting input (P1.7), inverting input (P1.6), output (P1.5); TIA0− leakage <5 pA not enabled on RGY package per datasheet footnote. |
| OA0+ / OA0− / OA0O | SAC-L1 op amp terminals | General-purpose rail-to-rail op amp inputs (P1.4, P1.2) and output (P1.3); supports sensor signal conditioning and filtering. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 3.75 KB unified nonvolatile memory with ECC, 1015 write cycles, and SRAM-like read/write speed - ideal for frequent data logging without wear leveling. |
| Transimpedance Amplifier (TIA) | Configurable gain and power modes; supports current-to-voltage conversion for photodiode, electrochemical, or gas sensor front-ends - though 5-pA leakage mode is disabled on RGY package. |
| Smart Analog Combo (SAC-L1) | Programmable op amp with rail-to-rail I/O and multiple input routing; enables analog signal conditioning, filtering, or comparator hysteresis without external components. |
| Ultra-Low-Power Operation | 32 nA LPM4.5 shutdown and 0.71 µA RTC-enabled LPM3.5 allow multi-year operation on coin-cell batteries in always-on sensing nodes. |
| Enhanced USCI Peripherals | Dual eUSCI modules with I²C master/slave, SPI, and UART; remap feature allows flexible pin assignment for PCB layout optimization. |
Applications
| Smoke Detection | Portable Health Monitoring |
|---|---|
Use Scenario: Battery-powered optical smoke sensor detecting scattered light from smoke particles in air chamber. IC Role / Device Role / Timing Role: MSP430FR2311IRGYR acts as main controller and analog front-end processor - digitizing photodiode current via TIA and ADC, managing alarm logic, and driving LED indicators. Use Value: Ultra-low standby current (0.71 µA in LPM3.5) extends 9-V alkaline battery life beyond 10 years; FRAM enables reliable event logging without flash wear. |
Use Scenario: Wrist-worn pulse oximeter measuring SpO₂ using red/IR photodiode signals and ambient light rejection. IC Role / Device Role / Timing Role: MSP430FR2311IRGYR performs synchronized dual-channel current-to-voltage conversion (TIA), 10-bit sampling, and real-time LED drive timing via Timer_B PWM outputs. Use Value: Integrated TIA and SAC-L1 op amp eliminate discrete analog components; 12 I/Os support LED drivers, button inputs, and BLE interface pins in compact VQFN package. |
| Power Bank Fuel Gauging | Industrial Power Monitoring |
Use Scenario: USB-C power bank monitoring cell voltage, charge/discharge current, and temperature for state-of-charge estimation. IC Role / Device Role / Timing Role: MSP430FR2311IRGYR serves as fuel gauge MCU - acquiring shunt voltage (via ADC), thermistor readings, and USB PD status through eUSCI_B0 I²C. Use Value: FRAM stores calibration coefficients and cycle-count history with bit-level reliability; 32 nA LPM4.5 minimizes self-discharge during storage. |
Use Scenario: DIN-rail mounted energy monitor measuring AC line voltage/current harmonics and calculating RMS, PF, and kWh. IC Role / Device Role / Timing Role: MSP430FR2311IRGYR conditions CT/PT analog outputs via SAC-L1, samples at precise intervals using RTC-triggered ADC, and communicates via UART to gateway. Use Value: 16-MHz DCO with FLL ensures accurate sampling timing; eUSCI_A0 UART supports Modbus RTU protocol over RS-485 transceiver. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2311IPW16 | Same core, FRAM, and peripherals; 16-pin TSSOP with 11 I/Os and enabled 5-pA TIA− input. | Better suited for ultra-low-leakage analog front-ends requiring sub-10-pA bias currents. | Select when TIA low-leakage mode is mandatory and board space allows TSSOP footprint. |
| MSP430FR2153IRGER | 3.75 KB FRAM, 16-MHz DCO, but no TIA; adds 16-bit sigma-delta ADC and more GPIO (19 I/Os in 24-pin VQFN). | Targeted at higher-precision metrology (e.g., weight scales, flow meters) without photodiode current amplification. | Choose when high-resolution SD-ADC is needed and TIA functionality is unnecessary. |
Compared with MSP430FR2311IPW16, the MSP430FR2311IRGYR trades TIA− leakage performance for smaller VQFN footprint and higher I/O density (12 vs. 11 pins); versus MSP430FR2153IRGER, it retains TIA for optical sensing but lacks SD-ADC resolution and extra GPIO - making it optimal for compact, battery-critical photoelectric detection systems.
Availability
MSP430FR2311IRGYR is available at Aetrix Electronics and suitable for smoke detection, portable health monitoring, and power bank fuel gauging requiring stable component supply, long-term lifecycle assurance, and RoHS-compliant packaging.
Supply support for MSP430FR2311IRGYR 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 ultra-low-power microcontrollers and sensing solutions.
The MSP430FR231x family targets cost-sensitive, battery-operated sensing applications - integrating FRAM, analog peripherals (TIA, SAC, eCOMP), and intelligent low-power modes to minimize system size and energy consumption.
FAQ
What is the maximum operating frequency of the MSP430FR2311IRGYR?
The MSP430FR2311IRGYR features a digitally controlled oscillator (DCO) with frequency-locked loop (FLL) capable of delivering a stable 16-MHz system clock. This maximum frequency is achievable across the full 1.8–3.6 V supply range and supports active-mode operation at up to 16 MHz, enabling responsive real-time processing in compact sensing nodes.
Does the MSP430FR2311IRGYR support the 5-pA low-leakage TIA mode?
No - the 5-pA low-leakage negative input mode for the TIA is explicitly enabled only on the TSSOP16 package (PW16) per Section 1.1 and Table 4-1 of the datasheet. The MSP430FR2311IRGYR uses the 16-pin VQFN (RGY16) package, where this feature is not implemented; standard TIA operation remains fully functional.
How many I/O pins does the MSP430FR2311IRGYR provide?
The MSP430FR2311IRGYR provides 12 general-purpose I/O pins in its 16-pin VQFN (RGY16) package. These include P1.0–P1.7 (8 pins), P2.0–P2.1 (2 pins), and two dedicated debug pins (RST/NMI and TEST) that can be repurposed as GPIO after programming - all support capacitive touch and interrupt wake-up from any low-power mode.
What development tools are compatible with the MSP430FR2311IRGYR?
The MSP430FR2311IRGYR is supported by the MSP‑EXP430FR2311 LaunchPad™ development kit and the MSP‑TS430PW20 target board. Software support includes free TI MSP430Ware™, Code Composer Studio™ IDE (desktop/cloud), and Energia IDE. Spy-Bi-Wire (SBW) interface enables programming and debugging via the RST/NMI and TEST pins.
Is FRAM write protection configurable on the MSP430FR2311IRGYR?
Yes - the MSP430FR2311IRGYR includes configurable FRAM write protection via the Memory Protection Unit (MPU). Users can define protected memory segments (e.g., bootloader region or calibration constants) using password-protected registers, preventing accidental or malicious overwrites during field operation or firmware updates.
MSP430FR2311IRGYR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-VFQFN Exposed Pad
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 12
- Program Memory Size:
- 3.75KB (3.75K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2311IRGYR FAQ
1.How can I place an order for MSP430FR2311IRGYR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2311IRGYR 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 MSP430FR2311IRGYR reliable?
The price and inventory of MSP430FR2311IRGYR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2311IRGYR is usually 5 days.
3.What payment methods are accepted for MSP430FR2311IRGYR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2311IRGYR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2311IRGYR?
MSP430FR2311IRGYR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2311IRGYR 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 MSP430FR2311IRGYR?
For technical support, including MSP430FR2311IRGYR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2311IRGYR requirements.
6.How does Aetrix verify that MSP430FR2311IRGYR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2311IRGYR 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 MSP430FR2311IRGYR meets industry standards.
7.What is the process for return or replacement of MSP430FR2311IRGYR?
All MSP430FR2311IRGYR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2311IRGYR, 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 MSP430FR2311IRGYR part is unused and in its original packaging.
Return procedure for MSP430FR2311IRGYR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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