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Texas Instruments MSP430FR2311IRGYT
- Part No.:
- MSP430FR2311IRGYT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2311IRGYT.pdf
- Description:
- IC MCU 16BIT 3.75KB FRAM 16VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:309
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Product details
Overview
MSP430FR2311IRGYT from Texas Instruments is a 16-bit RISC mixed-signal microcontroller featuring 3.75KB FRAM, 1KB RAM, integrated transimpedance amplifier (TIA), 8-channel 10-bit ADC, and smart analog combo (SAC-L1) for sensor signal conditioning. It operates from 1.8 V to 3.6 V, achieves 126 µA/MHz active current, and supports ultra-low-power modes including LPM4.5 (32 nA). It targets smoke detectors, portable health monitors, and power bank sensing subsystems.
For engineers reviewing the MSP430FR2311IRGYT datasheet, MSP430FR2311IRGYT pinout, MSP430FR2311IRGYT application, or MSP430FR2311IRGYT equivalent, key selection criteria include TIA input leakage (5 pA), FRAM endurance (1015 cycles), RTC support in LPM3.5, capacitive touch I/O capability, and VQFN-16 package compatibility with space-constrained PCB layouts.
Technical Context
The MSP430FR2311IRGYT integrates a digitally controlled oscillator (DCO) with ±1% accuracy at room temperature, enabling fast wake-up (<10 µs) from low-power modes. Its clock system includes on-chip REFO (32 kHz), VLO (10 kHz), MODOSC, and external HFXT/LFXT support up to 16 MHz.
It features two Timer_B3 modules (each with three capture/compare registers), eUSCI_A0 (UART/IrDA/SPI) and eUSCI_B0 (SPI/I²C), CRC16 engine, and programmable SVS levels tied to supply voltage monitoring - all coordinated by a unified power management module managing DVCC/DVSS domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generator; enables high code efficiency and deterministic real-time response. |
| Nonvolatile Memory | 3.75KB FRAM with ECC and configurable write protection; supports 1015 write cycles and radiation resistance. |
| ADC | 8-channel, 10-bit SAR ADC with 200 ksps sample rate and internal 1.5-V reference; suitable for battery-powered sensor digitization. |
| TIA Input Leakage | 5 pA (TSSOP16 only); confirmed for RGY package via TI's device comparison table and functional block diagram annotation. |
| Low-Power Modes | LPM4.5 draws 32 nA without SVS; LPM3.5 maintains RTC + backup memory at 0.71 µA using 32.768-kHz crystal. |
| I/O Count | 12 general-purpose I/O pins in 16-pin VQFN (RGY) package; all support capacitive touch and interrupt wake-up from any LPM. |
| Supply Voltage Range | 1.8 V to 3.6 V; minimum voltage constrained by SVS thresholds per datasheet Section 5.3. |
Pinout & Package
Package: 16-pin VQFN (RGY), 4 mm × 3.5 mm body size, exposed thermal pad, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC / DVSS | Main digital/analog power pair | Single-supply domain requiring 4.7–10 µF bulk + 0.1 µF ceramic decoupling per datasheet recommendation. |
| P1.0–P1.7, P2.0–P2.1 | Configurable GPIO | All 12 pins support capacitive touch, interrupt wake-up, and peripheral multiplexing (eUSCI, Timer, ADC, TIA, SAC). |
| RST/NMI/SBWTDIO | Reset & debug interface | Combines reset, non-maskable interrupt, and Spy-Bi-Wire data I/O; requires 10-nF pulldown if unused. |
| TEST/SBWTCK | Debug clock | Provides Spy-Bi-Wire clock input; dedicated pin for programming and emulation without JTAG overhead. |
| TRI0+/TRI0−/TRI0O | TIA analog terminals | High-impedance current-input (+/−) and rail-to-rail voltage-output; half-rail input bias enables single-supply photodiode interfacing. |
| VREF+ | Reference output | Internal 1.5-V reference source for ADC and comparator; stable output usable as external bias for sensors. |
Key Features
| Feature | Design Value |
|---|---|
| FRAM memory architecture | Unifies program, constants, and data storage with SRAM-like write speed, flash-like nonvolatility, and zero write-delay endurance. |
| Transimpedance amplifier (TIA) | Configurable high/low-power modes, rail-to-rail output, and selectable inputs enable direct photodiode or electrochemical sensor interfacing. |
| Smart Analog Combo (SAC-L1) | General-purpose op amp with rail-to-rail I/O and multiple input routing-supports sensor signal amplification and filtering without external components. |
| Enhanced comparator (eCOMP0) | Integrated 6-bit DAC reference and programmable hysteresis allow precise threshold detection for smoke or motion events. |
| Ultra-low-power RTC in LPM3.5 | Real-time clock counter remains active with 32.768-kHz crystal while core and peripherals are powered down-enables calendar timekeeping in battery-critical apps. |
Applications
| Smoke Detectors | Portable Health Monitors |
|---|---|
Use Scenario: Continuous optical smoke chamber current sensing with battery life >5 years. IC Role / Device Role / Timing Role: MSP430FR2311IRGYT acts as primary sensor signal conditioner and alarm controller, using TIA to convert photodiode current to voltage and ADC to digitize chamber baseline drift. Use Value: 5 pA TIA input leakage minimizes dark-current error; FRAM retains calibration data across 1015 writes during periodic self-test cycles. | Use Scenario: Wearable pulse oximeter with photoplethysmography (PPG) front-end and Bluetooth LE connectivity. IC Role / Device Role / Timing Role: MSP430FR2311IRGYT serves as analog front-end processor and BLE subsystem coordinator, driving LED drivers and sampling ADC at 200 ksps for waveform reconstruction. Use Value: LPM4.5 (32 nA) extends coin-cell battery life; SAC-L1 op amp configures transimpedance gain stages without external resistors. |
| Power Bank Fuel Gauging | Industrial Power Monitoring |
Use Scenario: Accurate coulomb counting and state-of-charge estimation in USB-C power banks with dual-cell Li-ion packs. IC Role / Device Role / Timing Role: MSP430FR2311IRGYT functions as embedded fuel gauge MCU, measuring shunt voltage via ADC and integrating current over time using FRAM-resident algorithms. Use Value: Unified FRAM memory stores firmware, calibration tables, and runtime logs without wear-out concerns; 1.8 V operation supports brownout resilience during discharge. | Use Scenario: DIN-rail mounted energy monitor capturing voltage/current harmonics in commercial lighting systems. IC Role / Device Role / Timing Role: MSP430FR2311IRGYT performs synchronized sampling of isolated CT/PT signals, computes RMS and THD using CRC-accelerated math, and reports via I²C to host MCU. Use Value: eUSCI_B0 I²C with remap feature avoids signal congestion; 16-bit timers provide precise 50/60 Hz cycle synchronization for harmonic analysis. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2311IPW16 | Same core, FRAM, RAM, and peripherals; differs only in 16-pin TSSOP (PW16) package with 11 I/Os vs. 12 in RGY. | Less I/O count and larger footprint (5 mm × 4.4 mm) limits use in ultra-compact designs where RGY's 4 mm × 3.5 mm is critical. | Select IPW16 only when TSSOP assembly infrastructure exists and board area permits larger package. |
| MSP430FR2310IRGY | Identical package and pinout; reduced FRAM (2 KB vs. 3.75 KB) and no TIA support per device comparison table. | Cannot implement photodiode-based sensing or high-precision current-to-voltage conversion due to missing TIA block. | Choose IRGY only for cost-sensitive, non-TIA applications requiring same footprint and basic analog peripherals. |
Compared with MSP430FR2311IPW16 and MSP430FR2310IRGY, the MSP430FR2311IRGYT uniquely delivers full TIA functionality in the smallest VQFN package with maximum FRAM capacity-making it optimal for space-constrained, sensor-intensive edge nodes requiring long-term data retention and ultra-low quiescent current.
Availability
MSP430FR2311IRGYT is available at Aetrix Electronics and suitable for smoke detectors, portable health monitors, and power bank fuel gauging requiring stable component supply, long-lifecycle assurance, and consistent FRAM performance across production batches.
Supply support for MSP430FR2311IRGYT 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 company specializing in analog, embedded processing, and connectivity technologies with leadership in low-power design and industrial-grade reliability.
The MSP430FR231x family was designed for ultra-low-power sensing and measurement applications-integrating FRAM, analog peripherals, and intelligent timers to extend battery life in portable and wireless sensor nodes.
FAQ
What is the maximum operating frequency of the MSP430FR2311IRGYT?
The MSP430FR2311IRGYT supports a maximum CPU clock frequency of 16 MHz, enabled by its on-chip digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This frequency is achievable across the full 1.8 V–3.6 V supply range and is validated under recommended operating conditions in the datasheet's timing specifications section.
Does the MSP430FR2311IRGYT include a hardware real-time clock (RTC)?
Yes, the MSP430FR2311IRGYT includes a dedicated 16-bit RTC counter that remains operational in LPM3.5 mode when powered by a 32.768-kHz external crystal. It supports calendar functions and alarm interrupts, and its operation is independent of the main CPU clock domain-enabling precise timekeeping during ultra-low-power sleep states.
Can the MSP430FR2311IRGYT drive capacitive touch buttons without external components?
Yes, all 12 I/O pins on the MSP430FR2311IRGYT support capacitive touch sensing in hardware using the built-in CTSIO module. No external RC networks or dedicated touch controllers are required-the MCU handles charge-transfer measurement, baseline tracking, and noise rejection internally via firmware libraries provided in MSP430Ware.
What is the function of the TRI0 peripheral in the MSP430FR2311IRGYT?
The TRI0 peripheral in the MSP430FR2311IRGYT is the transimpedance amplifier (TIA), renamed from TRI to TIA in documentation but retaining legacy register names. It converts low-level current signals (e.g., from photodiodes) into measurable voltages with rail-to-rail output, half-rail input bias, and configurable power modes-critical for optical smoke detection and PPG sensing.
Is the MSP430FR2311IRGYT pin-compatible with other devices in the MSP430FR231x family?
Yes, the MSP430FR2311IRGYT shares identical pinout and electrical characteristics with MSP430FR2310IRGY in the 16-pin VQFN (RGY) package. However, it is not pin-compatible with TSSOP variants (PW16/PW20) due to differing pin counts and signal allocations-designers must verify package-specific signal mappings before substitution.
MSP430FR2311IRGYT 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:
MSP430FR2311IRGYT FAQ
1.How can I place an order for MSP430FR2311IRGYT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2311IRGYT 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 MSP430FR2311IRGYT reliable?
The price and inventory of MSP430FR2311IRGYT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2311IRGYT is usually 5 days.
3.What payment methods are accepted for MSP430FR2311IRGYT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2311IRGYT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2311IRGYT?
MSP430FR2311IRGYT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2311IRGYT 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 MSP430FR2311IRGYT?
For technical support, including MSP430FR2311IRGYT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2311IRGYT requirements.
6.How does Aetrix verify that MSP430FR2311IRGYT is sourced from the original manufacturer or authorized distributors?
All MSP430FR2311IRGYT 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 MSP430FR2311IRGYT meets industry standards.
7.What is the process for return or replacement of MSP430FR2311IRGYT?
All MSP430FR2311IRGYT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2311IRGYT, 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 MSP430FR2311IRGYT part is unused and in its original packaging.
Return procedure for MSP430FR2311IRGYT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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