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Texas Instruments MSP430FR2155TPT
- Part No.:
- MSP430FR2155TPT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MSP430FR2155TPT.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:4,113
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Product details
Overview
MSP430FR2155TPT from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller designed for sensing and measurement applications in industrial and safety-critical environments. It features 32KB program FRAM, 4KB RAM, 12-bit SAR ADC (200 ksps), two enhanced comparators, and operates across –40°C to 105°C. Used in smoke detectors and sensor transmitters where nonvolatile data logging and fast wake-up (<10 µs) are essential.
For engineers reviewing the MSP430FR2155TPT datasheet, MSP430FR2155TPT pinout, MSP430FR2155TPT application, or MSP430FR2155TPT equivalent, key selection criteria include extended temperature operation, FRAM endurance (1015 writes), LPM3.5 current (620 nA), and 44 I/O count in 48-pin LQFP - critical for battery-powered sensor nodes requiring long-term reliability without flash wear-out.
Technical Context
The MSP430FR2155TPT implements a 16-bit RISC CPU with 24-MHz DCO+FLL clock system, ±1% accuracy at room temperature, and supports multiple low-power modes including LPM3.5 (620 nA) with RTC and backup memory active. Its power management module integrates SVS with configurable thresholds (VSVSH±) and BOR, enabling robust operation across 1.8–3.6 V supply range.
It includes two eUSCI_A modules (UART/IrDA/SPI) and two eUSCI_B modules (SPI/I²C), three Timer_B3 peripherals (3×CCR each), one Timer_B7 (7×CCR), and a 16-bit RTC counter. Unlike MSP430FR235x variants, it omits Smart Analog Combo (SAC) modules but retains full analog capability via dual eCOMP and integrated 6-bit DAC reference.
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. |
| Memory | 32KB FRAM program + 512B data FRAM + 4KB RAM; unified nonvolatile memory eliminates flash erase delays and supports 10¹⁵ write cycles. |
| ADC | 12-bit SAR, 12-channel, 200 ksps sample rate with internal 1.5/2.0/2.5 V references; suitable for precision sensor signal acquisition. |
| Low-Power Modes | LPM3.5 draws 620 nA (with 32.768-kHz crystal & SVS enabled); enables years of operation on coin-cell batteries in standby. |
| Operating Temperature | –40°C to 105°C; qualified for industrial smoke detectors, circuit breakers, and battery pack monitoring in harsh thermal environments. |
| Package | 48-pin LQFP (PT), 7 mm × 7 mm; compatible with standard reflow processes and provides 44 GPIOs with interrupt capability on P1–P4. |
| Clock System | On-chip 24-MHz DCO+FLL, REFO (32 kHz), VLO (10 kHz), MODOSC, plus external HFXT (≤24 MHz) and LFXT support; enables flexible timing architecture without external crystals in many cases. |
Pinout & Package
Package: 48-pin LQFP (PT), 7 mm × 7 mm body size, exposed pad not present (non-VQFN). Pin functions validated per TI SLASEC4D Rev D Figure 4-1.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC / DVSS | Main digital/analog power pair | Single-supply interface (1.8–3.6 V); requires 4.7–10 µF bulk + 0.1 µF ceramic decoupling per TI layout guidelines. |
| RST/NMI/SBWTDIO TEST/SBWTCK |
Reset, NMI, and Spy-Bi-Wire debug | Enables in-system programming and debugging via 2-wire SBW; no JTAG header needed. |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.7, P5.0–P5.4, P6.0–P6.6 |
General-purpose I/O ports | 44 total GPIOs; all P1–P4 pins support wake-from-LPM interrupt; P1/P2 support analog inputs (A0–A7), comparator inputs, and timer capture/compare. |
| XIN / XOUT | LFXT crystal oscillator terminals | Supports 32.768-kHz crystal for RTC and LPM3.5 operation; requires external load capacitors per crystal spec. |
| UCB0/UCB1 SCL/SDA/SOMI/SIMO/CLK/STE | I²C and SPI interfaces | eUSCI_B0/B1 support master/slave I²C (B1 only) and SPI; enable wired industrial communication with sensors and EEPROMs. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32KB program + 512B data FRAM with built-in ECC and configurable write protection; eliminates flash endurance limits and write latency. |
| Ultra-low-power operation | 620 nA in LPM3.5 (32.768-kHz crystal active); enables multi-year battery life in wireless sensor nodes and safety devices. |
| Integrated analog subsystem | 12-bit 12-channel ADC with internal references + two eCOMP with 6-bit DAC reference and programmable hysteresis; reduces external component count. |
| Digital peripherals | Timer_B3 (3×CCR), Timer_B7 (7×CCR), RTC, CRC16, MPY32, Manchester codec (MFM), and ICC for nested interrupts; supports precise timing and data integrity. |
| Development ecosystem | Supported by MSP-EXP430FR2355 LaunchPad™, MSP-TS43048PT target board, MSP430Ware™ libraries (FFT, drivers), and Code Composer Studio™ IDE. |
Applications
| Smoke and Heat Detectors | Sensor Transmitters |
|---|---|
Use Scenario: Standalone battery-powered smoke alarm with CO sensing, self-test, and acoustic alert. IC Role / Device Role / Timing Role: Main controller executing sensor readout, algorithmic smoke detection logic, and real-time alarm timing via RTC and LPM3.5 wake-up. Use Value: FRAM enables reliable event logging across 10+ years; 105°C rating ensures stable operation inside hot enclosures; 620 nA LPM3.5 extends 10-year battery life. |
Use Scenario: Industrial 4–20 mA or RS-485 sensor node for pressure, humidity, or gas concentration. IC Role / Device Role / Timing Role: Signal conditioner and protocol handler - digitizes analog sensor output, applies calibration, and formats data for wired transmission. Use Value: Integrated 12-bit ADC and eCOMP reduce external signal-chain components; eUSCI_B supports I²C sensor interfacing; LPM3.5 minimizes quiescent current during idle polling. |
| Circuit Breakers | Battery Pack Management |
Use Scenario: DIN-rail mounted breaker with overcurrent detection, trip timing, and fault logging. IC Role / Device Role / Timing Role: Real-time fault monitor using ADC sampling and comparator-triggered interrupts; stores trip events in FRAM with timestamp from RTC. Use Value: Extended temperature range (–40°C to 105°C) ensures reliability in panel-mounted enclosures; FRAM endurance prevents data corruption after thousands of fault records. |
Use Scenario: Smart Li-ion battery pack with cell voltage monitoring, temperature sensing, and charge/discharge control. IC Role / Device Role / Timing Role: Battery gauge MCU performing periodic cell voltage reads, thermistor measurements, and state-of-charge estimation. Use Value: 32KB FRAM stores lifetime cycle logs and calibration data; 4KB RAM accommodates real-time SoC algorithms; 1.8 V minimum supply allows operation down to deeply discharged cells. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2153TPT | 16KB FRAM, 2KB RAM, same package/peripherals/temperature range | Lower memory footprint suits simpler sensor nodes without complex firmware or large data buffers | Select when application firmware fits within 16KB and RAM usage stays under 2KB; identical pinout and migration path. |
| MSP430FR2355TPT | Adds four Smart Analog Combo (SAC) modules; otherwise identical FRAM/RAM/timing/peripherals | Required for designs needing programmable-gain op-amps or 12-bit DACs in analog front-end without external ICs | Choose only if SAC functionality is needed; otherwise MSP430FR2155TPT offers cost and BOM advantage with full feature parity elsewhere. |
Compared with MSP430FR2153TPT, the MSP430FR2155TPT provides double FRAM and RAM for larger firmware and data logging; versus MSP430FR2355TPT, it omits SAC modules - reducing cost and complexity where integrated op-amp/DAC functionality is unnecessary.
Availability
MSP430FR2155TPT is available at Aetrix Electronics and suitable for smoke detectors, sensor transmitters, and circuit breakers requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MSP430FR2155TPT 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 and embedded processing solutions, with decades of expertise in ultra-low-power microcontrollers and industrial-grade reliability.
The MSP430FR215x series is part of TI's value-line ULP FRAM MCU portfolio, engineered specifically for cost-sensitive, battery-operated sensing and measurement systems demanding extended temperature operation and nonvolatile memory endurance.
FAQ
What is the maximum operating frequency of the MSP430FR2155TPT?
The MSP430FR2155TPT supports a maximum CPU clock frequency of 24 MHz via its digitally controlled oscillator (DCO) with FLL stabilization. This frequency is achievable across the full operating voltage range (1.8–3.6 V) and temperature range (–40°C to 105°C), enabling real-time processing for sensor fusion and communication protocols without performance derating.
Does the MSP430FR2155TPT include hardware encryption or secure boot features?
No, the MSP430FR2155TPT does not include hardware encryption accelerators, secure boot ROM, or tamper-detection circuitry. It relies on software-based security measures and external secure elements if cryptographic functions or firmware authentication are required in the application design.
Can the MSP430FR2155TPT drive an external crystal above 32.768 kHz?
Yes - the MSP430FR2155TPT supports external high-frequency crystals up to 24 MHz via the HFXT oscillator module. The LFXT input is dedicated to 32.768-kHz crystals for RTC and low-power timing, while HFXT handles main system clocking; both require appropriate external load capacitors per crystal manufacturer specifications.
How many I²C interfaces does the MSP430FR2155TPT support?
The MSP430FR2155TPT supports two eUSCI_B modules (eUSCI_B0 and eUSCI_B1), both capable of SPI and I²C operation. However, only eUSCI_B1 is documented to support I²C slave/master mode; eUSCI_B0 supports SPI and UART (via eUSCI_A) but not I²C - confirmed in TI SLASEC4D Table 3-1 footnote (4).
Is the MSP430FR2155TPT pin-compatible with the MSP430FR2355TPT?
Yes - the MSP430FR2155TPT and MSP430FR2355TPT share identical 48-pin LQFP (PT) packaging, pinout, and peripheral mapping. They differ only in on-die analog functionality (SAC modules present in FR2355, absent in FR2155), making them drop-in replacements where SAC is unused, with no PCB or layout changes required.
MSP430FR2155TPT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-LQFP
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 24MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 44
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 4K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 12x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2155TPT FAQ
1.How can I place an order for MSP430FR2155TPT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2155TPT 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 MSP430FR2155TPT reliable?
The price and inventory of MSP430FR2155TPT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2155TPT is usually 5 days.
3.What payment methods are accepted for MSP430FR2155TPT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2155TPT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2155TPT?
MSP430FR2155TPT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2155TPT 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 MSP430FR2155TPT?
For technical support, including MSP430FR2155TPT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2155TPT requirements.
6.How does Aetrix verify that MSP430FR2155TPT is sourced from the original manufacturer or authorized distributors?
All MSP430FR2155TPT 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 MSP430FR2155TPT meets industry standards.
7.What is the process for return or replacement of MSP430FR2155TPT?
All MSP430FR2155TPT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2155TPT, 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 MSP430FR2155TPT part is unused and in its original packaging.
Return procedure for MSP430FR2155TPT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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