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Texas Instruments MSP430FR2155TRHAT
- Part No.:
- MSP430FR2155TRHAT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430FR2155TRHAT.pdf
- Description:
- IC MCU 16BIT 32KB FRAM 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:653
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Product details
Overview
MSP430FR2155TRHAT from Texas Instruments is a 16-bit ultra-low-power FRAM microcontroller with 32KB program FRAM, 512B data FRAM, and 4KB RAM, operating from 1.8 V to 3.6 V across –40°C to 105°C. It integrates a 12-bit 200 ksps SAR ADC, two enhanced comparators with 6-bit DAC reference, dual eUSCI_A (UART/IrDA/SPI) and dual eUSCI_B (SPI/I²C), and Timer_B modules - deployed in smoke detectors and industrial sensor transmitters.
For engineers reviewing the MSP430FR2155TRHAT datasheet, MSP430FR2155TRHAT pinout, MSP430FR2155TRHAT application, or MSP430FR2155TRHAT equivalent, key selection criteria include extended temperature operation, FRAM endurance (10¹⁵ writes), LPM3.5 current (620 nA), 40-pin VQFN package compatibility, and absence of Smart Analog Combo (SAC) modules compared to FR235x variants.
Technical Context
The MSP430FR2155TRHAT implements a 16-bit RISC CPU with constant generator and 24-MHz DCO+FLL clock system achieving ±1% accuracy at room temperature. Its power management includes SVS with programmable thresholds and five low-power modes - LPM3.5 retains RTC and backup memory while drawing only 620 nA with 32.768-kHz crystal.
Peripheral integration centers on signal acquisition and communication: the 12-channel 12-bit ADC supports internal 1.5/2.0/2.5-V references and sample-and-hold; eCOMP0/eCOMP1 offer configurable hysteresis and dual power modes (100 ns / 1 µs response); serial interfaces support full-duplex UART, IrDA, SPI, and I²C with independent clock domains.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generator, up to 24 MHz operation |
| Memory | 32KB FRAM program + 512B FRAM data + 4KB SRAM; unified nonvolatile memory with ECC and 10¹⁵ write endurance |
| ADC | 12-bit SAR, 12-channel single-ended, 200 ksps sampling rate with internal 1.5/2.0/2.5-V references |
| Low-Power Modes | LPM3: 1.43 µA (32.768-kHz crystal, SVS enabled); LPM3.5: 620 nA; LPM4.5 (shutdown): 42 nA (SVS disabled) |
| Serial Interfaces | 2× eUSCI_A (UART/IrDA/SPI) + 2× eUSCI_B (SPI/I²C); eUSCI_B1 supports I²C only |
| Operating Range | –40°C to 105°C ambient; supply voltage 1.8 V to 3.6 V (SVS-limited operational window) |
| Package | 40-pin VQFN (RHA), 6 mm × 6 mm body, thermal pad connected to DVSS |
Pinout & Package
40-pin VQFN (RHA) package with exposed thermal pad requiring connection to DVSS. Pin count and I/O allocation match the MSP430FR215x family specification: 36 GPIOs, including 32 interrupt-capable pins across P1–P4 ports.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC / DVSS | Main digital/analog power pair | Single-supply domain for all digital logic and analog peripherals; requires 4.7–10 µF bulk + 0.1 µF ceramic decoupling |
| RST/NMI/SBWTDIO TEST/SBWTCK | Reset & Spy-Bi-Wire debug interface | Asynchronous reset input; dual-function JTAG/SBW test pins enabling in-circuit programming and debugging |
| P1.x–P4.x | General-purpose I/O ports | 32 pins support wake-from-LPM interrupts; configurable pull-up/down, drive strength, and peripheral multiplexing |
| UCA0TXD/UCA0RXD UCB0SIMO/UCB0SOMI | eUSCI_A0 / eUSCI_B0 signals | Full-duplex UART/IrDA/SPI (A0); SPI master/slave (B0); pin-multiplexed with GPIO and analog functions |
| A0–A9, A11 | ADC input channels | 10 dedicated analog inputs (A0–A9, A11); A0/A1/A2/A3/A5/A6/A7/A8/A9/A11 mapped to P1/P2/P3/P5 pins |
| OA0+/OA0−/OA0O OA1+/OA1−/OA1O | Op-amp terminals | Two rail-to-rail operational amplifiers with selectable gain (noninverting ×1–×33, inverting ×1–×32) and internal DAC bias |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 32KB program + 512B data FRAM enables fast, low-energy, high-endurance nonvolatile storage without wear leveling |
| Ultra-Low-Power Operation | LPM3.5 draws only 620 nA while retaining RTC counter and 32-byte backup memory - ideal for battery-powered wake-on-event systems |
| Integrated Signal Chain | 12-bit ADC with internal references + two enhanced comparators + dual rail-to-rail op-amps reduce external BOM for sensor front-ends |
| Robust Clock System | On-chip 24-MHz DCO+FLL (±1%), 32-kHz REFO, 10-kHz VLO, and support for external LFXT/HFXT crystals enable flexible timing architecture |
| Development Ecosystem | Supported by MSP-EXP430FR2355 LaunchPad™, MSP-TS43048PT target board, and free MSP430Ware™ libraries (driver/FFT) |
Applications
| Smoke and Heat Detectors | Sensor Transmitters |
|---|---|
Use Scenario: Standalone battery-operated smoke alarm with optical sensing and acoustic alert. IC Role / Device Role / Timing Role: Main controller executing smoke detection algorithm, managing ADC sampling of photodiode output, driving buzzer via GPIO, and maintaining real-time log in FRAM. Use Value: Extended –40°C to 105°C operation ensures reliability in attic or garage environments; LPM3.5 current (620 nA) enables >10-year coin-cell battery life. | Use Scenario: Wireless temperature/humidity node transmitting data over RS-485 or I²C to gateway. IC Role / Device Role / Timing Role: Sensor interface MCU acquiring analog outputs from thermistor/hygrometer, performing linearization, and formatting packets for serial transmission. Use Value: Integrated 12-bit ADC with internal references eliminates external precision voltage source; FRAM enables secure, wear-free calibration storage. |
| Circuit Breakers | Battery Pack Management |
Use Scenario: DIN-rail mounted breaker with overcurrent detection, trip actuation, and event logging. IC Role / Device Role / Timing Role: Real-time monitoring unit sampling shunt voltage via ADC, comparing against threshold in hardware comparator, and triggering relay control. Use Value: Dual eCOMP modules provide <1 µs response time with 1.5-µA quiescent current - enabling fast fault isolation without external comparators. | Use Scenario: Secondary protection IC in Li-ion pack monitoring cell voltage, temperature, and charge/discharge current. IC Role / Device Role / Timing Role: Safety-critical supervisor acquiring analog inputs, validating thresholds, storing fault history in FRAM, and asserting hardware shutdown signal. Use Value: Radiation-resistant FRAM ensures reliable black-box logging under EMI-rich battery environments; 105°C rating supports under-hood deployment. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2153TRHAT | 16KB program FRAM, 2KB RAM (vs. 32KB/4KB); identical peripheral set and package | Lower memory footprint suits simpler firmware with minimal data logging or calibration tables | Select when application code size remains under 16KB and SRAM usage stays below 2KB - reduces cost without sacrificing I/O or analog capability |
| MSP430FR2355TRHAT | Adds four Smart Analog Combo (SAC) modules (configurable OA/DAC), same FRAM/RAM, same package | Enables multi-channel programmable-gain amplification or 12-bit DAC generation not available in MSP430FR2155TRHAT | Choose when system requires additional analog signal conditioning beyond dual op-amps - SAC modules replace discrete PGA/DAC components |
Compared with MSP430FR2153TRHAT, the MSP430FR2155TRHAT doubles FRAM and RAM for richer firmware and data buffering; versus MSP430FR2355TRHAT, it omits SAC modules - reducing complexity and cost where advanced analog configurability is unnecessary.
Availability
MSP430FR2155TRHAT is available at Aetrix Electronics and suitable for smoke detectors, industrial sensor transmitters, circuit breakers, and battery pack management systems requiring stable component supply across extended temperature and ultra-low-power operation.
Supply support for MSP430FR2155TRHAT 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 for industrial, automotive, and consumer markets.
The MSP430FR215x product line delivers ultra-low-power, FRAM-based microcontrollers optimized for sensing, measurement, and battery-operated industrial safety applications - emphasizing extended temperature resilience and energy-efficient data logging.
FAQ
What is the maximum operating frequency of the MSP430FR2155TRHAT?
The MSP430FR2155TRHAT supports a maximum CPU clock frequency of 24 MHz, achieved using the on-chip digitally controlled oscillator (DCO) with frequency-locked loop (FLL). This 24-MHz operation is validated across the full –40°C to 105°C temperature range and 1.8 V to 3.6 V supply voltage, with ±1% accuracy at room temperature when referenced to the internal REFO.
Does the MSP430FR2155TRHAT include Smart Analog Combo (SAC) modules?
No, the MSP430FR2155TRHAT does not include Smart Analog Combo (SAC) modules. SAC functionality is exclusive to the MSP430FR235x family (e.g., MSP430FR2355TRHAT). The MSP430FR2155TRHAT provides two rail-to-rail operational amplifiers (OA0/OA1) and two enhanced comparators (eCOMP0/eCOMP1), but lacks the four configurable SAC-L3 units that support PGA, DAC, and OA combinations.
What are the low-power mode current specifications for the MSP430FR2155TRHAT?
At 3 V, the MSP430FR2155TRHAT achieves 1.43 µA in LPM3 (32.768-kHz crystal, SVS enabled), 620 nA in LPM3.5 (same crystal, SVS enabled), and 42 nA in LPM4.5 (shutdown, SVS disabled). These values are production-tested and specified across the full operating temperature range, enabling decade-long battery life in maintenance-free sensor nodes.
Which development tools support the MSP430FR2155TRHAT?
The MSP430FR2155TRHAT is supported by the MSP-EXP430FR2355 LaunchPad™ development kit (software-compatible), the MSP-TS43048PT 48-pin target board (pin-compatible with adapter), and TI's free MSP430Ware™ software suite. Code Composer Studio™ IDE (desktop/cloud) provides full debugging, profiling, and driver library integration - including FFT and sensor driver examples optimized for the MSP430FR215x platform.
How many ADC channels does the MSP430FR2155TRHAT support, and what are its reference options?
The MSP430FR2155TRHAT features a 12-bit SAR ADC with up to 10 usable analog input channels (A0–A9, A11) in the 40-pin RHA package. It supports internal voltage references of 1.5 V, 2.0 V, and 2.5 V - selectable via software - eliminating the need for external reference ICs in most precision sensing applications.
MSP430FR2155TRHAT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-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:
- 24MHz
- Connectivity:
- I2C, IrDA, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 36
- 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 10x12b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430FR2155TRHAT FAQ
1.How can I place an order for MSP430FR2155TRHAT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2155TRHAT 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 MSP430FR2155TRHAT reliable?
The price and inventory of MSP430FR2155TRHAT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2155TRHAT is usually 5 days.
3.What payment methods are accepted for MSP430FR2155TRHAT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2155TRHAT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2155TRHAT?
MSP430FR2155TRHAT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2155TRHAT 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 MSP430FR2155TRHAT?
For technical support, including MSP430FR2155TRHAT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2155TRHAT requirements.
6.How does Aetrix verify that MSP430FR2155TRHAT is sourced from the original manufacturer or authorized distributors?
All MSP430FR2155TRHAT 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 MSP430FR2155TRHAT meets industry standards.
7.What is the process for return or replacement of MSP430FR2155TRHAT?
All MSP430FR2155TRHAT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2155TRHAT, 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 MSP430FR2155TRHAT part is unused and in its original packaging.
Return procedure for MSP430FR2155TRHAT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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