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Texas Instruments MSP430FR2311IPW16R
- Part No.:
- MSP430FR2311IPW16R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430FR2311IPW16R.pdf
- Description:
- IC MCU 16BIT 3.75KB FRAM 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:19,003
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Product details
Overview
MSP430FR2311IPW16R from Texas Instruments is a 16-pin TSSOP ultra-low-power mixed-signal microcontroller featuring a 16-bit RISC CPU, 3.75KB FRAM, 1KB RAM, integrated transimpedance amplifier (TIA), 8-channel 10-bit ADC, and smart analog combo (SAC-L1) for sensor signal conditioning in battery-powered smoke detectors and portable health devices.
For engineers reviewing the MSP430FR2311IPW16R datasheet, MSP430FR2311IPW16R pinout, MSP430FR2311IPW16R application, or MSP430FR2311IPW16R equivalent, key selection criteria include its 11 I/O count in PW16 package, 32 nA LPM4.5 shutdown current, TIA with 5 pA input leakage, FRAM endurance of 1015 write cycles, and support for capacitive touch sensing on all GPIOs.
Technical Context
The MSP430FR2311IPW16R implements a digitally controlled oscillator (DCO) with FLL, ±1% accuracy at room temperature, and multiple clock sources including REFO, VLO, MODOSC, LFXT, and HFXT up to 16 MHz. Its low-power architecture enables wake-up from LPM4.5 to active mode in under 10 µs.
It integrates three configurable analog subsystems: TIA0 (with TRI0+/-/O pins), SAC0 (general-purpose op amp), and eCOMP0 (enhanced comparator with 6-bit DAC reference). All analog modules support high- and low-power modes, and the TIA is enabled only on TSSOP-16 and VQFN packages per datasheet specification.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| CPU Core | 16-bit RISC, up to 16 MHz operation - enables deterministic real-time control with minimal code footprint |
| Memory | 3.75KB FRAM + 1KB RAM - unified nonvolatile memory with 1015 write endurance and ECC protection |
| Low-Power Modes | LPM4.5 shutdown: 32 nA (no SVS); LPM3.5 RTC: 0.71 µA - extends battery life in always-on sensing applications |
| TIA Input Leakage | 5 pA (TSSOP-16 package only) - enables high-impedance current measurement for photodiode or electrochemical sensors |
| ADC | 8-channel, 10-bit, 200 ksps with internal 1.5-V reference - supports fast, self-contained analog acquisition without external references |
| I/O Count | 11 GPIOs (PW16 package) - all support capacitive touch, interrupt wake-up, and analog function multiplexing |
| Package | 16-pin TSSOP (PW16), 5 mm × 4.4 mm - surface-mount compatible with standard reflow profiles and IPC-compliant layout |
Pinout & Package
16-pin TSSOP (PW16) package with 0.65 mm pitch, 5 mm × 4.4 mm body size, and exposed thermal pad not present - suitable for compact PCB layouts with moderate thermal dissipation requirements.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 | TIA0+ (TRI0+) | Positive input of transimpedance amplifier - accepts low-current sensor signals (e.g., photodiode anode) |
| 2 | TIA0− (TRI0−) | Negative input with 5 pA leakage - enables high-gain current-to-voltage conversion with minimal offset error |
| 3 | TIA0OUT (TRI0O) | TIA output node - rail-to-rail swing supports direct connection to ADC input or comparator threshold |
| 4 | P1.6 / TDI / TCLK / A6 | JTAG debug and analog input - dual-use pin supports programming and sensor signal acquisition |
| 5 | P1.7 / TDO / A7 | JTAG output and analog channel - enables boundary-scan test and simultaneous analog monitoring |
| 6 | RST/NMI/SBWTDIO | Reset, non-maskable interrupt, and Spy-Bi-Wire I/O - single-pin debug interface reduces PCB routing complexity |
| 7 | TEST/SBWTCK | Spy-Bi-Wire clock - enables low-pin-count in-circuit debugging without dedicated JTAG header |
| 8 | DVSS | Digital/analog ground reference - must be connected to low-impedance system ground plane |
| 9 | DVCC | Core supply (1.8–3.6 V) - requires 0.1 µF ceramic + 4.7–10 µF bulk decoupling per datasheet recommendation |
| 10 | P2.0 / TB1.1 / COUT | Timer B1 output and capture - supports PWM generation or pulse-width measurement for timing-critical events |
| 11 | P2.1 / TB1.2 | Timer B1 secondary I/O - expands timer functionality for dual-edge capture or gated counting |
| 12 | P1.0 / UCB0STE / SMCLK / A0 | USCI B0 chip select and system clock output - enables synchronous SPI slave operation and clock distribution |
| 13 | P1.1 / UCB0CLK / ACLK / A1 | USCI B0 clock and auxiliary clock source - supports I²C/SPI communication and RTC timebase derivation |
| 14 | P1.2 / UCB0SIMO / UCB0SDA / OA0− / A2 | USCI B0 data out, I²C data, op-amp inverting input - shared signal supports flexible peripheral and analog reuse |
| 15 | P1.3 / UCB0SOMI / UCB0SCL / OA0O / A3 | USCI B0 data in, I²C clock, op-amp output - enables bidirectional serial comms and analog signal buffering |
| 16 | P1.4 / UCA0STE / OA0+ / A4 | USCI A0 chip select and op-amp noninverting input - supports UART/IrDA control and precision sensor front-end biasing |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 3.75KB program/data storage with 1015 write cycles and built-in ECC - eliminates flash wear-out concerns in logging or calibration applications |
| Transimpedance Amplifier (TIA) | 5 pA input leakage, half-rail input, rail-to-rail output - enables direct interfacing with high-impedance current-output sensors without external components |
| Smart Analog Combo (SAC-L1) | Configurable op-amp with programmable gain and power modes - provides flexible analog signal conditioning within same power domain as MCU core |
| Capacitive Touch I/O | All 11 GPIOs support capacitive touch sensing - allows button/slider implementation without dedicated touch controller IC |
| Ultra-Low-Power Operation | 126 µA/MHz active current; 0.71 µA RTC mode; 32 nA shutdown - extends coin-cell battery life to multi-year operation in intermittent-sensing systems |
Applications
| Smoke Detector Sensing | Portable Pulse Oximeter |
|---|---|
|
Use Scenario: Detecting minute photocurrent changes from scattered light in ionization or optical smoke chambers. IC Role / Device Role / Timing Role: MSP430FR2311IPW16R acts as analog front-end controller, digitizing TIA output and executing smoke algorithm in FRAM-resident firmware. Use Value: 5 pA TIA input leakage ensures stable baseline for sub-nA photocurrent detection; FRAM enables reliable event logging across 10+ years of operation. |
Use Scenario: Measuring red/infrared photoplethysmography (PPG) signals from fingertip LEDs and photodiodes. IC Role / Device Role / Timing Role: MSP430FR2311IPW16R synchronizes LED drive timing, acquires dual-wavelength ADC samples, and computes SpO₂ using on-chip math routines. Use Value: Integrated SAC-L1 op-amp conditions weak PPG signals; 200 ksps ADC captures rapid pulse waveforms; 32 nA LPM4.5 minimizes quiescent drain during sleep intervals. |
| Smart Power Bank Monitor | Wireless CO Detector |
|
Use Scenario: Real-time battery voltage/current/temperature monitoring and state-of-charge estimation in USB-C power banks. IC Role / Device Role / Timing Role: MSP430FR2311IPW16R serves as embedded power management unit, interfacing with shunt resistors, thermistors, and USB PD controllers via I²C. Use Value: 11 GPIOs accommodate multiple analog inputs and digital interfaces; FRAM stores calibration coefficients and usage history without wear degradation. |
Use Scenario: Electrochemical CO sensor signal amplification and temperature-compensated concentration calculation in battery-operated gas detectors. IC Role / Device Role / Timing Role: MSP430FR2311IPW16R configures TIA for nanoamp-level sensor current, applies cold-junction compensation, and triggers alarm via RF module. Use Value: TIA's low-leakage input preserves sensor accuracy; LPM3.5 RTC maintains 24/7 sampling schedule at 0.71 µA; 16-pin TSSOP fits compact detector housing. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2311IPW20 | 20-pin TSSOP; 16 I/Os; identical FRAM/ADC/TIA specs | Requires larger PCB footprint; supports full 16-pin JTAG and additional USCI peripherals | Select when more GPIOs, full JTAG, or extra analog channels are needed beyond PW16 constraints |
| MSP430FR2111IPW16 | Same PW16 package; 2KB FRAM; no TIA; SAC-L0 (op-amp only); 10-bit ADC at 100 ksps | Lacks transimpedance capability; lower analog integration; reduced memory for simpler firmware | Select for cost-sensitive, non-current-sensing applications where TIA is unnecessary and FRAM size can be halved |
Compared with MSP430FR2311IPW20 and MSP430FR2111IPW16, the MSP430FR2311IPW16R uniquely balances minimal 16-pin footprint with full TIA functionality and 3.75KB FRAM-making it optimal for space-constrained, current-sensing edge nodes requiring long-term data integrity.
Availability
MSP430FR2311IPW16R is available at Aetrix Electronics and suitable for smoke detectors, portable health monitors, and wireless gas sensors requiring stable component supply, long-lifecycle assurance, and consistent parametric performance across production batches.
Supply support for MSP430FR2311IPW16R 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 focus on energy efficiency, reliability, and system-level innovation.
The MSP430FR2311IPW16R belongs to TI's MSP430™ ultra-low-power sensing MCU family, designed specifically for battery-operated measurement and detection systems where analog integration, FRAM durability, and sub-µA sleep currents are critical.
FAQ
What is the maximum operating frequency of the MSP430FR2311IPW16R?
The MSP430FR2311IPW16R supports a maximum CPU clock frequency of 16 MHz, achieved via its on-chip digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This speed is fully operational across the specified supply range (1.8 V to 3.6 V) and enables real-time signal processing in sensor applications without external crystal dependency.
Does the MSP430FR2311IPW16R support capacitive touch sensing on all I/O pins?
Yes, the MSP430FR2311IPW16R supports capacitive touch sensing on all 11 general-purpose I/O pins in its 16-pin TSSOP package. This capability is implemented in hardware via the integrated CapTIvate™-compatible peripheral and requires no external components, enabling robust touch-button or slider interfaces in space-constrained designs.
Is the transimpedance amplifier (TIA) available on the MSP430FR2311IPW16R package?
Yes, the TIA is explicitly enabled on the MSP430FR2311IPW16R's TSSOP-16 package, as confirmed in the device datasheet Section 1.1 ("Features") and Table 4-1 ("Pin Attributes"). It delivers 5 pA input leakage, half-rail input, and rail-to-rail output - making it suitable for photodiode and electrochemical sensor interfaces.
What is the FRAM endurance rating for the MSP430FR2311IPW16R?
The MSP430FR2311IPW16R features 3.75KB of ferroelectric RAM (FRAM) rated for 1015 write cycles - orders of magnitude higher than flash or EEPROM. This enables frequent data logging, parameter updates, or firmware patching without endurance concerns, even in applications with continuous background writes.
How does the MSP430FR2311IPW16R achieve ultra-low-power shutdown current?
The MSP430FR2311IPW16R achieves 32 nA shutdown current (LPM4.5) by disabling all clocks, peripherals, and SRAM retention while preserving FRAM contents and optional backup memory. This state is entered via software command and exited by external reset or RTC alarm - ideal for multi-year battery operation in intermittently active sensors.
MSP430FR2311IPW16R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- 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:
MSP430FR2311IPW16R FAQ
1.How can I place an order for MSP430FR2311IPW16R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2311IPW16R 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 MSP430FR2311IPW16R reliable?
The price and inventory of MSP430FR2311IPW16R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2311IPW16R is usually 5 days.
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MSP430FR2311IPW16R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2311IPW16R 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 MSP430FR2311IPW16R?
For technical support, including MSP430FR2311IPW16R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2311IPW16R requirements.
6.How does Aetrix verify that MSP430FR2311IPW16R is sourced from the original manufacturer or authorized distributors?
All MSP430FR2311IPW16R 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 MSP430FR2311IPW16R meets industry standards.
7.What is the process for return or replacement of MSP430FR2311IPW16R?
All MSP430FR2311IPW16R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2311IPW16R, 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 MSP430FR2311IPW16R part is unused and in its original packaging.
Return procedure for MSP430FR2311IPW16R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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