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Texas Instruments MSP430FR2311IPW16
- Part No.:
- MSP430FR2311IPW16
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR2311IPW16.pdf
- Description:
- IC MCU 16BIT 3.75KB FRAM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,158
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Product details
Overview
MSP430FR2311IPW16 from Texas Instruments is a 16-bit RISC mixed-signal microcontroller with 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 and portable health devices requiring precision analog front-end and long battery life.
For engineers reviewing the MSP430FR2311IPW16 datasheet, MSP430FR2311IPW16 pinout, MSP430FR2311IPW16 application, or MSP430FR2311IPW16 equivalent, this page delivers verified specifications, TSSOP-16 package mapping, TIA/ADC/SAC functional context, low-power mode trade-offs, and validated alternative MCUs for sensing applications.
Technical Context
The MSP430FR2311IPW16 implements a 16-MHz digitally controlled oscillator (DCO) with FLL, ±1% accuracy at room temperature, and multiple clock sources including REFO, VLO, MODOSC, LFXT, and HFXT. Its TIA supports half-rail input, rail-to-rail output, and low-leakage negative input (5 pA), enabled only on TSSOP-16 and VQFN packages.
It integrates two eUSCI modules (eUSCI_A0 for UART/IrDA/SPI; eUSCI_B0 for SPI/I²C), Timer_B3 with three capture/compare registers (only CCR1/CCR2 externally connected on PW16), and a 16-bit RTC counter. The 11 I/O pins include capacitive touch capability and 12 interrupt-capable pins (8 on P1, 4 on P2), though only 11 are physically available in the 16-pin TSSOP package.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generator; enables high code efficiency and sub-10 µs wake-up from LPMs. |
| Memory | 3.75KB FRAM (10¹⁵ write cycles, ECC, unified program/data/storage) + 1KB SRAM. |
| TIA Input Leakage | 5 pA max (enabled on PW16 package); critical for high-impedance photodiode or electrochemical sensor interfaces. |
| ADC Performance | 8-channel, 10-bit SAR ADC with 200 ksps sample rate, internal 1.5-V reference, and sample-and-hold. |
| Low-Power Modes | LPM3.5 (RTC + backup memory active): 0.71 µA; LPM4.5 (shutdown): 32 nA without SVS. |
| Supply Range | 1.8 V to 3.6 V; minimum voltage constrained by SVS thresholds per datasheet Section 5.3. |
| Package | 16-pin TSSOP (PW16), 5 mm × 4.4 mm body; 11 GPIOs (P1.0–P1.7, P2.0–P2.1), DVCC/DVSS, RST/NMI, TEST, XIN/XOUT. |
Pinout & Package
16-pin TSSOP (PW16) package, 5 mm × 4.4 mm body size, surface-mount, lead-free, RoHS-compliant. Pin 1 marked via dot or bevel; pin 1 corner located at top-left when notch faces up.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0 / UCB0STE / SMCLK / C0 / A0 / Veref+ | Multi-function I/O | Primary SPI slave select, system clock output, analog channel 0 input, internal reference positive terminal. |
| P1.1 / UCB0CLK / ACLK / C1 / A1 | Multi-function I/O | Primary SPI clock, auxiliary clock output, analog channel 1 input. |
| TEST / SBWTCK | JTAG/SBW debug clock | Required for Spy-Bi-Wire programming and debugging; must be pulled high or driven during operation. |
| RST/NMI / SBWTDIO | Reset & debug I/O | Active-low reset with NMI capability; bidirectional data line for SBW interface; requires 10-nF pulldown if unused. |
| DVCC / DVSS | Power pair | Main digital/analog supply (DVCC) and ground (DVSS); bypass with 4.7–10 µF + 0.1 µF decoupling per datasheet recommendation. |
| P2.7 / TB0CLK / XIN | Timer/crystal input | Timer_B0 clock source input or low-frequency crystal oscillator input (LFXT). |
| P2.6 / MCLK / XOUT | Timer/crystal output | Main system clock output or LFXT crystal oscillator output; requires external load capacitors for crystal mode. |
| P2.0 / TB1.1 / COUT | Timer/output | Timer_B1 channel 1 output or comparator output; usable as PWM or logic-level signal source. |
| P1.7 / UCA0TXD / UCA0SIMO / TB0.2 / TDO / TRI0+ / A7 / VREF+ | Analog/digital I/O | TIA non-inverting input (TRI0+), ADC channel 7, JTAG test data out, UART transmit, SPI master-out. |
| P1.6 / UCA0RXD / UCA0SOMI / TB0.1 / TDI / TCLK / TRI0- / A6 | Analog/digital I/O | TIA inverting input (TRI0-), ADC channel 6, JTAG test data in, UART receive, SPI master-in; low-leakage path enabled. |
| P1.5 / UCA0CLK / TMS / TRI0O / A5 | Analog/digital I/O | TIA output (TRI0O), ADC channel 5, JTAG test mode select, UART clock; rail-to-rail output drives external stages. |
| P1.4 / UCA0STE / TCK / OA0+ / A4 | Analog/digital I/O | Op-amp non-inverting input (OA0+), ADC channel 4, JTAG test clock, UART slave select. |
| P1.3 / UCB0SOMI / UCB0SCL / OA0O / A3 | Analog/digital I/O | Op-amp output (OA0O), ADC channel 3, I²C serial data (SCL), SPI slave-in/master-out. |
| P1.2 / UCB0SIMO / UCB0SDA / TB0TRG / OA0- / A2 / Veref- | Analog/digital I/O | Op-amp inverting input (OA0-), ADC channel 2, I²C serial data (SDA), SPI master-in/slave-out, internal reference negative terminal. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 3.75KB nonvolatile memory with 10¹⁵ write endurance, ECC protection, and unified program/data storage-eliminates flash wear-out concerns in frequent logging applications. |
| Configurable Transimpedance Amplifier (TIA) | 5 pA input leakage, half-rail input, rail-to-rail output, and selectable gain modes enable direct interfacing with photodiodes and amperometric sensors without external op-amps. |
| Smart Analog Combo (SAC-L1) | General-purpose rail-to-rail op-amp with programmable power modes supports sensor biasing, filtering, and signal amplification within same die as MCU. |
| Ultra-Low-Power Operation | 32 nA shutdown (LPM4.5) and 0.71 µA RTC-active (LPM3.5) extend battery life in always-on smoke detectors and wearable health monitors. |
| Integrated 10-bit ADC | 8-channel, 200 ksps sampling with internal 1.5-V reference and sample-and-hold allows simultaneous multi-sensor acquisition without external ADC or reference. |
Applications
| Smoke Detectors | Portable Health Monitors |
|---|---|
Use Scenario: Battery-powered optical smoke chamber with photodiode current detection and periodic self-test. IC Role / Device Role / Timing Role: MSP430FR2311IPW16 acts as analog front-end controller, digitizing photodiode current via TIA and ADC while managing alarm logic and RF transmission timing. Use Value: 5 pA TIA input leakage ensures stable baseline under low-light conditions; FRAM enables reliable event logging across 10+ years of operation. | Use Scenario: Wrist-worn pulse oximeter acquiring red/IR photodiode signals and driving LED drivers. IC Role / Device Role / Timing Role: MSP430FR2311IPW16 serves as sensor hub, synchronizing LED pulsing, measuring photodiode current via TIA, and computing SpO₂ using onboard FRAM-stored calibration coefficients. Use Value: Integrated SAC-L1 op-amp buffers LED drive signals; LPM3.5 RTC maintains timekeeping during sleep between measurements. |
| Power Bank Fuel Gauging | Industrial Sensor Nodes |
Use Scenario: USB-C power bank monitoring cell voltage, temperature, and charge/discharge current for state-of-charge estimation. IC Role / Device Role / Timing Role: MSP430FR2311IPW16 functions as fuel gauge MCU, reading shunt voltage via ADC, compensating for temperature drift using SAC-L1, and storing cycle-count history in FRAM. Use Value: 10¹⁵ FRAM write cycles support >10,000 full charge cycles without memory degradation; 1.8 V operation extends usable range down to depleted Li-ion cells. | Use Scenario: Wireless environmental node measuring CO₂, humidity, and VOCs with electrochemical and NDIR sensors. IC Role / Device Role / Timing Role: MSP430FR2311IPW16 provides analog signal conditioning (TIA for electrochemical current, SAC-L1 for sensor bias), ADC digitization, and low-duty-cycle BLE wakeup scheduling. Use Value: Low-leakage TIA enables accurate nA-level gas sensor current measurement; 32 nA LPM4.5 minimizes quiescent drain during 99% sleep duty cycle. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2311IPW20 | Same core, 3.75KB FRAM, 1KB RAM, but 20-pin TSSOP with 16 GPIOs (vs. 11 on PW16); includes P2.2–P2.5 for expanded SPI/I²C peripheral routing. | Preferred where additional I/O or eUSCI_B signal remapping is required; not suitable for space-constrained layouts needing 16-pin footprint. | Select PW20 for prototyping or systems needing full peripheral access; choose PW16 for cost- and area-optimized production designs with minimal I/O count. |
| MSP430FR2310IPW16 | Identical 16-pin TSSOP package and pinout, but reduced 2KB FRAM (vs. 3.75KB); same TIA, ADC, SAC, and low-power specs. | Valid drop-in replacement where firmware size ≤2KB and no FRAM-based data logging beyond 2KB is needed. | Choose MSP430FR2310IPW16 for cost-sensitive applications with smaller code footprint; retain MSP430FR2311IPW16 when FRAM headroom for firmware updates or sensor history is essential. |
Compared with MSP430FR2311IPW20 and MSP430FR2310IPW16, the MSP430FR2311IPW16 uniquely balances compact 16-pin packaging, full TIA/SAC/ADC feature set, and 3.75KB FRAM-making it optimal for space-constrained, analog-intensive IoT endpoints where pin count and memory both matter.
Availability
MSP430FR2311IPW16 is available at Aetrix Electronics and suitable for smoke detectors, portable health monitors, and power bank fuel gauging requiring stable component supply, long-term lifecycle assurance, and consistent parametric performance across production batches.
Supply support for MSP430FR2311IPW16 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 delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency, reliability, and system integration.
The MSP430FR231x product line targets ultra-low-power sensing and measurement applications, integrating FRAM, configurable analog peripherals (TIA, SAC, eCOMP), and intelligent timers to minimize external components in battery-operated devices.
FAQ
What is the maximum operating frequency of the MSP430FR2311IPW16?
The MSP430FR2311IPW16 features a 16-MHz digitally controlled oscillator (DCO) with frequency-locked loop (FLL), enabling stable CPU operation up to 16 MHz. This frequency is achievable across the full 1.8 V–3.6 V supply range and specified over temperature per datasheet Section 5.12. The DCO's ±1% accuracy at room temperature eliminates need for external high-frequency crystals in many timing-critical applications.
Does the MSP430FR2311IPW16 support capacitive touch sensing?
Yes, all general-purpose I/O pins on the MSP430FR2311IPW16-including all 11 GPIOs in the TSSOP-16 package-are configured as capacitive touch I/Os. The device includes dedicated hardware support for capacitive touch measurement, enabling button, slider, or wheel implementations without external components. This capability is documented in Section 1.1 Features and Section 4.2 Pin Attributes of the SLASE58E datasheet.
Is the transimpedance amplifier (TIA) available on the MSP430FR2311IPW16 package?
Yes, the TIA (labeled TRI0 in legacy register names, now TIA0) is fully functional on the MSP430FR2311IPW16. Its low-leakage negative input (5 pA max) is explicitly enabled on the TSSOP-16 package per Section 1.1 Features and Table 4-1 Pin Attributes. Pins P1.6 (TRI0−), P1.7 (TRI0+), and P1.5 (TRI0O) provide direct access to TIA inputs and output.
What development tools are supported for the MSP430FR2311IPW16?
The MSP430FR2311IPW16 is supported by the MSP‑EXP430FR2311 LaunchPad™ development kit and the MSP‑TS430PW20 20-pin target board. TI's free MSP430Ware™ software, integrated into Code Composer Studio™ IDE (desktop and cloud), provides drivers, examples, and configuration tools. Debugging uses Spy-Bi-Wire via the TEST and RST/NMI pins, compatible with standard MSP-FET and standalone debuggers.
How does FRAM memory in the MSP430FR2311IPW16 differ from traditional flash in terms of endurance and power?
The MSP430FR2311IPW16's 3.75KB FRAM offers 10¹⁵ write cycles-orders of magnitude higher than typical flash (10⁴–10⁵ cycles)-and writes at SRAM speed with no erase-before-write overhead. It consumes significantly less energy per write operation and operates down to 1.8 V, enabling reliable data logging in ultra-low-power modes where flash would fail. FRAM's radiation resistance and nonmagnetic properties further suit it for medical and industrial environments.
MSP430FR2311IPW16 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- Product Status:
- Active
- Programmable:
- 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:
- 11
- 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:
MSP430FR2311IPW16 FAQ
1.How can I place an order for MSP430FR2311IPW16 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2311IPW16 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 MSP430FR2311IPW16 reliable?
The price and inventory of MSP430FR2311IPW16 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2311IPW16 is usually 5 days.
3.What payment methods are accepted for MSP430FR2311IPW16?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2311IPW16 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2311IPW16?
MSP430FR2311IPW16 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2311IPW16 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 MSP430FR2311IPW16?
For technical support, including MSP430FR2311IPW16 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2311IPW16 requirements.
6.How does Aetrix verify that MSP430FR2311IPW16 is sourced from the original manufacturer or authorized distributors?
All MSP430FR2311IPW16 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 MSP430FR2311IPW16 meets industry standards.
7.What is the process for return or replacement of MSP430FR2311IPW16?
All MSP430FR2311IPW16 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2311IPW16, 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 MSP430FR2311IPW16 part is unused and in its original packaging.
Return procedure for MSP430FR2311IPW16:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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