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Texas Instruments MSP430FR2033IG48R
- Part No.:
- MSP430FR2033IG48R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR2033IG48R.pdf
- Description:
- IC MCU 16BIT 15.5KB FRAM 48TSSOP
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430FR2033IG48R from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 15.5 KB of FRAM (15 KB program + 512 B information), 2 KB RAM, and integrated 10-bit ADC with 8 input channels. It operates from 1.8 V to 3.6 V, achieves 126 µA/MHz active current at 3 V, and supports LPM3.5 real-time clock operation at 0.77 µA - enabling battery-powered smoke detectors and industrial sensor nodes with multi-year runtime.
For engineers reviewing the MSP430FR2033IG48R datasheet, MSP430FR2033IG48R pinout, MSP430FR2033IG48R application, or MSP430FR2033IG48R equivalent, key selection criteria include FRAM endurance (1015 write cycles), capacitive touch I/O support across all pins, dual eUSCI modules (UART/I²C/SPI), and verified 48-pin TSSOP package compatibility with LPM3.5 RTC operation and 200 ksps ADC sampling.
Technical Context
This device implements a 16-bit RISC CPU with constant generators and a digitally controlled oscillator (DCO) locked via FLL to ±1% accuracy at room temperature using the on-chip REFO. Its clock system integrates multiple sources: 32-kHz XT1 crystal, 10-kHz VLO, 16-MHz DCO, MODCLK, and programmable prescalers for MCLK/SMCLK.
The peripheral set includes two Timer_A3 modules (each with three capture/compare registers), CRC16 engine, IR modulation logic, watchdog timer, and power management module supporting six low-power modes - including LPM4.5 (15 nA shutdown) and LPM3.5 with RTC enabled while core and most peripherals remain powered off.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators; enables high code efficiency and sub-10 µs wake-up from LPM to active mode. |
| Memory | 15 KB program FRAM + 512 B info FRAM + 2 KB RAM; unified nonvolatile memory with ECC, 1015 write endurance, radiation resistant. |
| ADC | 10-bit SAR ADC with 8 external channels, 200 ksps sample rate, internal 1.5-V reference, and sample-and-hold capability. |
| Low-Power Modes | LPM3.5 draws 0.77 µA with 32.768-kHz crystal RTC active; LPM4.5 draws 15 nA in full shutdown - critical for coin-cell–powered endpoints. |
| Communication | eUSCI_A0 supports UART, IrDA, SPI; eUSCI_B0 supports SPI and I²C; both configurable for low-power wakeup and autonomous transfers. |
| Package & Pins | TSSOP-48 package with 44 GPIOs; all pins support capacitive touch sensing and 16 interrupt-capable I/Os (P1/P2) for LPM wake-up. |
| Supply Range | 1.8 V to 3.6 V operation; minimum voltage constrained by SVS thresholds - requires careful brown-out configuration for reliable low-voltage operation. |
Pinout & Package
TSSOP-48 (G48) package, 12.5 mm × 6.1 mm body size, 0.5 mm pitch, thermally enhanced for industrial ambient conditions up to 85°C.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / SBW data I/O | Single-pin debug interface for programming and reset; must be pulled high externally; shared function requires careful JTAG/SBW mode handling. |
| TEST/SBWTCK | SBW test clock input | Required for Spy-Bi-Wire debugging; not used in application mode; must be pulled low or left floating per TI guidelines to avoid interference. |
| P1.0–P1.7 | General-purpose I/O / ADC A0–A7 / eUSCI signals | Primary analog input bank (A0–A7); also serve UART TX/RX, SPI, and timer functions - pin multiplexing requires software configuration at startup. |
| P4.1/XIN & P4.2/XOUT | XT1 crystal oscillator terminals | Support external 32.768-kHz crystal for RTC; require external load capacitors (12.5 pF typical); critical for LPM3.5 timing accuracy. |
| P5.0–P5.3 | eUSCI_B0 I²C/SPI signals | Provide I²C (SCL/SDA) and SPI (STE/CLK/SOMI/SIMO) interfaces; enable communication with sensors, EEPROMs, and displays without additional level shifters. |
| DVCC / DVSS | Main power pair | Single 1.8–3.6 V supply powers digital and analog domains; requires 4.7–10 µF bulk + 0.1 µF ceramic decoupling per TI layout guidance. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 15.5 KB nonvolatile memory with ECC, 1015 write cycles, and zero write delay - eliminates need for wear-leveling firmware in data-logging applications. |
| Capacitive Touch I/O | All 44 GPIOs support capacitive sensing without external components - enables cost-effective HMI buttons, sliders, and proximity detection in space-constrained designs. |
| Real-Time Clock (RTC) | 16-bit counter with crystal support in LPM3.5 at 0.77 µA - delivers precise timekeeping during ultra-low-power sleep, essential for periodic sensor wake-up scheduling. |
| Ultra-Low-Power Operation | 15 nA LPM4.5 shutdown current and 126 µA/MHz active current - extends battery life in energy-harvesting and coin-cell–powered systems beyond 10 years. |
| Integrated Clock System | On-chip DCO (±1% accuracy), REFO, VLO, MODCLK, and XT1 support - eliminates external crystals for most timing needs, reducing BOM count and PCB area. |
Applications
| Smoke Detector Node | Industrial Temperature Sensor |
|---|---|
Use Scenario: Battery-powered residential smoke alarm with self-test, hush function, and wireless alert transmission. IC Role / Device Role / Timing Role: Main controller executing smoke algorithm, managing piezo driver, reading optical chamber ADC, and maintaining RTC-based self-test schedule. Use Value: FRAM stores calibration offsets and event logs without wear-out; LPM3.5 RTC enables monthly self-tests at 0.77 µA, extending 9-V battery life to >5 years. |
Use Scenario: DIN-rail mounted temperature monitor in HVAC control panel with local display and Modbus RTU over RS-485. IC Role / Device Role / Timing Role: Sensor fusion hub acquiring thermistor/RTD readings, compensating for drift, and formatting Modbus frames for host MCU. Use Value: 10-bit ADC with internal 1.5-V reference provides stable measurement across 1.8–3.6 V supply range; eUSCI_B0 handles I²C sensor reads and UART-to-RS485 bridge. |
| Smart Glass Breakage Detector | Low-Power HMI Controller |
Use Scenario: Acoustic security sensor detecting high-frequency glass fracture signatures in commercial buildings. IC Role / Device Role / Timing Role: Real-time audio front-end processing raw microphone data via ADC oversampling and FFT-accelerated pattern recognition. Use Value: 200 ksps ADC sampling captures 100-kHz transients; FRAM buffers waveform segments for analysis; LPM0 active mode minimizes acoustic processing power. |
Use Scenario: Touch-enabled status display for battery-powered medical equipment with LED indicators and button feedback. IC Role / Device Role / Timing Role: Capacitive touch manager scanning 12-button overlay and driving RGB LEDs with PWM timers. Use Value: All 44 GPIOs support CTS, eliminating external touch controller; Timer_A3 CCR outputs generate precise LED dimming waveforms without CPU overhead. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2032IG48R | 8 KB program FRAM + 512 B info FRAM + 1 KB RAM; same 48-pin TSSOP package and peripheral set. | Lower memory capacity limits complex sensor fusion or extended data logging; suitable for simpler smoke/temperature endpoints. | Select when application firmware fits within 8 KB FRAM and 1 KB RAM - reduces cost without sacrificing low-power performance or pin compatibility. |
| MSP430FR2355TRHBR | 64-pin VQFN; 32 KB FRAM; enhanced analog (12-bit ADC, op-amps, DAC); higher pin count and thermal performance. | Targets more complex signal conditioning and closed-loop control; not pin-compatible and requires PCB redesign. | Choose for next-generation designs needing higher-resolution sensing, analog front-end integration, or future scalability - not a drop-in replacement. |
Compared with MSP430FR2033IG48R, the MSP430FR2032IG48R offers identical low-power behavior and pinout at reduced memory, while the MSP430FR2355TRHBR adds analog precision and density but demands layout revision - making the former ideal for cost-optimized replacements and the latter for feature-expanded upgrades.
Availability
MSP430FR2033IG48R is available at Aetrix Electronics and suitable for industrial sensor management, smoke/fire detection systems, and low-power HMI controllers requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR2033IG48R 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 specializing in analog, embedded processing, and connectivity technologies with decades of low-power MCU innovation.
The MSP430FR20xx product line targets ultra-low-power sensing and measurement applications - designed specifically for battery-operated endpoints where energy efficiency, nonvolatile memory reliability, and rapid wake-up response are critical.
FAQ
What is the maximum operating frequency of the MSP430FR2033IG48R?
The MSP430FR2033IG48R features a 16-MHz digitally controlled oscillator (DCO) with FLL-based frequency locking, enabling stable operation up to 16 MHz. This maximum frequency is achievable across the full 1.8 V to 3.6 V supply range and specified temperature conditions, with ±1% accuracy at room temperature when referenced to the internal REFO.
Does the MSP430FR2033IG48R support hardware real-time clock functionality?
Yes, the MSP430FR2033IG48R includes a dedicated 16-bit RTC counter that operates independently in LPM3.5 mode with an external 32.768-kHz crystal, drawing only 0.77 µA. It supports calendar mode, alarm interrupts, and automatic leap-year correction - all implemented in hardware without CPU intervention.
How many analog input channels does the MSP430FR2033IG48R ADC support in the 48-pin TSSOP package?
In the MSP430FR2033IG48R (TSSOP-48), the 10-bit ADC supports 8 external analog input channels (A0–A7), mapped to P1.0 through P1.7. While the full family supports up to 10 channels, pins A8 and A9 are not bonded out in this package variant per TI's Device Comparison table and Pin Diagram documentation.
Can the MSP430FR2033IG48R perform capacitive touch sensing on all GPIO pins?
Yes, the MSP430FR2033IG48R supports capacitive touch sensing on all 44 available GPIOs in the TSSOP-48 package. This capability is implemented in hardware via the built-in CapTIvate™-compatible charge-transfer method, requiring no external components and enabling robust touch buttons, sliders, or proximity detection in space-constrained designs.
What debug interface does the MSP430FR2033IG48R use, and what pins are required?
The MSP430FR2033IG48R uses the two-wire Spy-Bi-Wire (SBW) interface for programming and debugging, requiring only RST/NMI/SBWTDIO (pin 16) and TEST/SBWTCK (pin 17) - both located on the same side of the TSSOP-48 package. No external pull-ups or level shifters are needed, and SBW operates at full system voltage (1.8–3.6 V).
MSP430FR2033IG48R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not 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:
- 44
- Program Memory Size:
- 15.5KB (15.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 2K 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:
MSP430FR2033IG48R FAQ
1.How can I place an order for MSP430FR2033IG48R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2033IG48R 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 MSP430FR2033IG48R reliable?
The price and inventory of MSP430FR2033IG48R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2033IG48R is usually 5 days.
3.What payment methods are accepted for MSP430FR2033IG48R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2033IG48R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2033IG48R?
MSP430FR2033IG48R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2033IG48R 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 MSP430FR2033IG48R?
For technical support, including MSP430FR2033IG48R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2033IG48R requirements.
6.How does Aetrix verify that MSP430FR2033IG48R is sourced from the original manufacturer or authorized distributors?
All MSP430FR2033IG48R 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 MSP430FR2033IG48R meets industry standards.
7.What is the process for return or replacement of MSP430FR2033IG48R?
All MSP430FR2033IG48R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2033IG48R, 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 MSP430FR2033IG48R part is unused and in its original packaging.
Return procedure for MSP430FR2033IG48R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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