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Texas Instruments MSP430FR2155TPTR
- Part No.:
- MSP430FR2155TPTR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-LQFP
- Datasheet:
-
MSP430FR2155TPTR.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 48LQFP
- Quantity:
- Payment:
- Shipping:
Inventory:288
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Product details
Overview
MSP430FR2155TPTR from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller optimized for sensing and measurement applications. It features 32KB program FRAM, 4KB RAM, 12-bit SAR ADC (200 ksps), two enhanced comparators with integrated 6-bit DAC, and operates across –40°C to 105°C for industrial smoke detectors and sensor transmitters.
For engineers reviewing the MSP430FR2155TPTR datasheet, MSP430FR2155TPTR pinout, MSP430FR2155TPTR application, or MSP430FR2155TPTR equivalent, key selection criteria include LPM3.5 current (620 nA), FRAM endurance (1015 writes), 44 I/O count in LQFP-48, and support for UART/I²C/SPI via dual eUSCI_A and eUSCI_B modules.
Technical Context
The MSP430FR2155TPTR implements a 16-bit RISC CPU with constant generator and 24-MHz DCO+FLL clock system offering ±1% accuracy at room temperature. Its power management module supports six low-power modes including LPM3.5 (620 nA) and LPM4.5 (42 nA), with wake-up capability from all I/O pins (P1–P4).
Unlike MSP430FR235x variants, the MSP430FR2155TPTR omits Smart Analog Combo (SAC) modules but retains full analog functionality: 12-channel 12-bit ADC with internal 1.5/2.0/2.5-V reference, two eCOMPs with programmable hysteresis and dual power modes, and unified FRAM memory architecture enabling simultaneous code execution and data logging.
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. |
| Max Clock Frequency | 24 MHz via DCO+FLL; ±1% accuracy at 25°C using on-chip reference - eliminates need for external crystal in cost-sensitive designs. |
| Memory | 32KB FRAM program + 512B data FRAM + 4KB RAM; unified nonvolatile memory allows in-field firmware updates without erase cycles. |
| ADC | 12-bit SAR, 12-channel, 200 ksps sampling rate with internal shared reference (1.5/2.0/2.5 V); supports single-ended inputs for sensor signal conditioning. |
| Low-Power Modes | LPM3.5 draws 620 nA (with SVS enabled, 32768-Hz crystal); enables battery-powered operation for >10 years in periodic wake-up sensor nodes. |
| I/O Count | 44 GPIOs in 48-pin LQFP package; 32 pins (P1–P4) support interrupt/wake-up from all LPMs - critical for responsive industrial monitoring. |
| Communication | Dual eUSCI_A (UART/IrDA/SPI) + dual eUSCI_B (SPI/I²C); supports wired industrial communications and optical module control without external level shifters. |
Pinout & Package
Package: 48-pin LQFP (PT), 7 mm × 7 mm body size, lead pitch 0.5 mm. Thermal pad not present - no grounding requirement.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC / DVSS | Main digital/analog power pair | Single 1.8–3.6 V supply domain; requires 4.7–10 µF bulk + 0.1 µF ceramic decoupling per rail for stable ADC and FRAM operation. |
| RST/NMI/SBWTDIO | Reset, NMI input, Spy-Bi-Wire data I/O | Multi-function pin for debugging and recovery; SBW interface enables in-system programming with minimal footprint (2-wire JTAG alternative). |
| P1.0–P1.7, P2.0–P2.7, P3.0–P3.7, P4.0–P4.7 | General-purpose I/O ports | 44 total GPIOs; all P1–P4 pins support interrupt/wake-up from LPM3.5/LPM4.5 - essential for ultra-low-power sensor polling. |
| UCA0TXD/UCA0RXD, UCA1TXD/UCA1RXD | UART transmit/receive lines | Dual asynchronous serial interfaces; enable simultaneous host communication and peripheral telemetry (e.g., smoke detector status + sensor data). |
| UCB0SCL/UCB0SDA, UCB1SCL/UCB1SDA | I²C clock/data lines | Two independent I²C masters/slaves; support multi-sensor networks (e.g., temperature + humidity + CO sensors on same bus). |
| A0–A11 | ADC input channels | 12 dedicated analog inputs mapped across P1–P5; allow direct connection of resistive sensors, thermistors, or voltage outputs without external muxing. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32KB program + 512B data FRAM with ECC and configurable write protection - enables robust data logging in safety-critical industrial environments. |
| Ultra-Low-Power Operation | LPM3.5 current of 620 nA (32768-Hz crystal active) and 42 nA shutdown mode - extends battery life in wireless sensor transmitters beyond 10 years. |
| Integrated Analog Peripherals | 12-bit ADC (200 ksps), two eCOMPs with 100-ns/1-µs response options, and 6-bit DAC reference - reduces BOM by eliminating discrete op-amps and references. |
| Dual Serial Interfaces | Two eUSCI_A (UART/IrDA/SPI) and two eUSCI_B (SPI/I²C) modules - supports concurrent wired industrial protocols (e.g., Modbus RTU + sensor I²C bus). |
| Extended Temperature Range | –40°C to 105°C operation - qualified for harsh environments including circuit breakers, optical modules, and battery pack thermal monitoring. |
Applications
| Smoke and Heat Detectors | Sensor Transmitters |
|---|---|
Use Scenario: Standalone battery-powered smoke alarm with temperature compensation and self-test capability. IC Role / Device Role / Timing Role: Main controller executing smoke detection algorithm, managing piezo alarm driver, and logging fault events to FRAM. Use Value: LPM3.5 current (620 nA) enables 10+ year battery life; FRAM endurance (1015 writes) ensures reliable event logging over product lifetime. |
Use Scenario: Wireless environmental sensor node measuring temperature, humidity, and CO₂, transmitting data via UART to gateway. IC Role / Device Role / Timing Role: Signal conditioner and protocol handler - digitizes analog sensor outputs and formats packets for RS-485 or BLE bridge. Use Value: Integrated 12-bit ADC and dual UART eliminate external ADC and level shifter; 44 GPIOs support future sensor expansion without PCB redesign. |
| Circuit Breakers | Battery Pack Management |
Use Scenario: DIN-rail mounted breaker with overcurrent detection, trip timing, and fault history storage. IC Role / Device Role / Timing Role: Real-time fault monitor using RTC counter and comparator-triggered interrupts for sub-millisecond response. Use Value: 100-ns comparator response time enables fast overcurrent detection; extended temperature rating (–40°C to 105°C) ensures reliability in panel-mounted enclosures. |
Use Scenario: Secondary protection IC in Li-ion battery packs monitoring cell voltage, temperature, and charge/discharge current. IC Role / Device Role / Timing Role: Safety-critical supervisor - performs periodic cell voltage sampling and triggers hardware cutoff if thresholds exceeded. Use Value: FRAM retention at 105°C prevents data loss during thermal stress; 4KB RAM buffers transient measurements during high-rate sampling bursts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2153TPTR | 16KB FRAM, 2KB RAM, identical peripherals and pinout | Lower memory capacity suits simpler sensor nodes with fixed firmware and minimal data logging | Select when application firmware fits within 16KB and FRAM data buffering requirements are ≤2KB. |
| MSP430FR2355TPTR | Adds four Smart Analog Combo (SAC) modules; same FRAM/RAM, 44 I/O, LQFP-48 package | Enables programmable-gain op-amp and 12-bit DAC functions for precision analog front-ends (e.g., strain gauge amplification) | Choose only if SAC-based signal conditioning is required - adds design flexibility but increases cost and complexity. |
Compared with MSP430FR2153TPTR, the MSP430FR2155TPTR provides double FRAM and RAM for larger firmware and extended data logging; versus MSP430FR2355TPTR, it trades SAC analog configurability for lower cost and reduced software overhead in fixed-function sensor applications.
Availability
MSP430FR2155TPTR is available at Aetrix Electronics and suitable for smoke detectors, sensor transmitters, circuit breakers, and battery pack management systems requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MSP430FR2155TPTR 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 for industrial, automotive, and consumer markets with over 90 years of innovation.
The MSP430FR215x series is part of TI's ultra-low-power value-line MCU portfolio, designed specifically for cost-sensitive sensing and measurement applications where FRAM durability, extended temperature operation, and minimal active/standby current are critical.
FAQ
What is the maximum operating frequency and accuracy of the MSP430FR2155TPTR internal oscillator?
The MSP430FR2155TPTR integrates a 24-MHz digitally controlled oscillator (DCO) with frequency-locked loop (FLL) achieving ±1% accuracy at room temperature using the on-chip reference. This eliminates the need for an external crystal in many cost-sensitive applications while maintaining timing integrity for UART and ADC sampling.
Does the MSP430FR2155TPTR support hardware debug interfaces, and which ones?
Yes, the MSP430FR2155TPTR supports Spy-Bi-Wire (SBW) via RST/NMI/SBWTDIO and TEST/SBWTCK pins - a 2-wire variant of JTAG that enables full in-system programming and real-time debugging with minimal PCB footprint and no additional connectors required.
How does the FRAM memory in the MSP430FR2155TPTR differ from traditional flash in terms of endurance and write speed?
The MSP430FR2155TPTR's FRAM offers 1015 write cycles - orders of magnitude higher than flash - and supports byte-level writes at SRAM speeds without erase delays. This enables reliable, high-frequency data logging (e.g., sensor timestamps or fault events) directly to nonvolatile memory without wear leveling.
What low-power modes are available on the MSP430FR2155TPTR, and what is the lowest achievable current draw?
The MSP430FR2155TPTR supports six low-power modes. The lowest active-retention mode is LPM3.5 (620 nA with 32768-Hz crystal running), and the absolute minimum is LPM4.5 (42 nA with SVS disabled), both retaining RAM and register contents - ideal for infrequently polled battery-powered sensors.
Can the MSP430FR2155TPTR operate across the full industrial temperature range, and how is this validated?
Yes, the MSP430FR2155TPTR is fully specified and tested from –40°C to 105°C. This extended temperature qualification is confirmed in TI's production test flow and documented in the SLASEC4D datasheet, enabling use in smoke detectors, circuit breakers, and battery packs exposed to thermal stress.
MSP430FR2155TPTR 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:
MSP430FR2155TPTR FAQ
1.How can I place an order for MSP430FR2155TPTR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2155TPTR 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 MSP430FR2155TPTR reliable?
The price and inventory of MSP430FR2155TPTR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2155TPTR is usually 5 days.
3.What payment methods are accepted for MSP430FR2155TPTR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2155TPTR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2155TPTR?
MSP430FR2155TPTR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2155TPTR 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 MSP430FR2155TPTR?
For technical support, including MSP430FR2155TPTR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2155TPTR requirements.
6.How does Aetrix verify that MSP430FR2155TPTR is sourced from the original manufacturer or authorized distributors?
All MSP430FR2155TPTR 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 MSP430FR2155TPTR meets industry standards.
7.What is the process for return or replacement of MSP430FR2155TPTR?
All MSP430FR2155TPTR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2155TPTR, 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 MSP430FR2155TPTR part is unused and in its original packaging.
Return procedure for MSP430FR2155TPTR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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