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Texas Instruments MSP430FR2033IG48
- Part No.:
- MSP430FR2033IG48
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR2033IG48.pdf
- Description:
- IC MCU 16BIT 15.5KB FRAM 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,440
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Product details
Overview
MSP430FR2033IG48 from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 15.5 KB FRAM (15 KB program + 512 B information), 2 KB RAM, dual 16-bit Timer_A3 peripherals with three capture/compare registers each, 10-bit 8-channel ADC, and dual eUSCI modules supporting UART/IrDA/SPI/I²C - deployed in battery-powered smoke detectors and industrial sensor nodes requiring sub-µA standby operation.
For engineers reviewing the MSP430FR2033IG48 datasheet, MSP430FR2033IG48 pinout, MSP430FR2033IG48 application, or MSP430FR2033IG48 equivalent, this page delivers verified technical context, package-specific I/O mapping, low-power mode current values, FRAM endurance specs, and validated alternative options for design-in decisions.
Technical Context
The MSP430FR2033IG48 implements a 16-bit RISC CPU with constant generators and DCO-based clock system delivering ±1% accuracy at room temperature; its LPM3.5 mode enables RTC operation at 0.77 µA using a 32.768-kHz crystal while keeping FRAM and core logic powered down.
It integrates two independent Timer_A3 modules (TA0 and TA1), each with three CCR registers - CCR0 used exclusively for internal period timing/interrupts, while CCR1 and CCR2 support external capture/compare functions; all 44 GPIOs are configurable as capacitive touch I/Os with interrupt capability on P1/P2 pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and hardware multiplier; enables efficient code execution and low-cycle ISR latency. |
| FRAM Capacity | 15.5 KB nonvolatile memory (15 KB program + 512 B info); supports 10¹⁵ write cycles and built-in ECC for data integrity. |
| RAM Size | 2 KB SRAM; sufficient for real-time sensor buffering and stack depth in LPM3.5 wake-up routines. |
| ADC Resolution & Channels | 10-bit SAR ADC with 8 input channels (A0–A7); 200 ksps sample rate and internal 1.5-V reference enable direct thermistor or voltage monitoring. |
| Low-Power Modes | LPM3.5 draws 0.77 µA with RTC + 32.768-kHz crystal; LPM4.5 shutdown consumes only 15 nA - critical for >10-year battery life. |
| Communication Peripherals | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (SPI/I²C); supports simultaneous serial sensor interfacing and host communication without external transceivers. |
| Package & Pins | TSSOP-48 (G48); 44 usable I/Os including 16 interrupt-capable pins on P1/P2 for fast wake-from-sleep response. |
Pinout & Package
TSSOP-48 (G48) package, 12.5 mm × 6.1 mm body size, 0.5 mm pitch; thermal pad not present; requires standard reflow profile per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / SBW data I/O | Single-pin reset and debug interface; must be pulled high externally; enables in-system programming via Spy-Bi-Wire. |
| TEST/SBWTCK | Test mode select / SBW clock input | Activates JTAG/SBW debug mode when held high during power-up; required for firmware flashing and real-time debugging. |
| P1.0–P1.7 | General-purpose I/O / ADC A0–A7 / eUSCI signals | 8-pin port with analog inputs, UART TX/RX, SPI, and timer capture - primary interface for sensors and comms peripherals. |
| P4.1/XIN & P4.2/XOUT | Crystal oscillator input/output | Supports external 32.768-kHz watch crystal for RTC accuracy; requires 12.5 pF load capacitors per TI layout guidelines. |
| P5.0–P5.3 | eUSCI_B0 I²C/SPI signals | Provides I²C SDA/SCL and SPI SIMO/SOMI/CLK/STE - enables connection to digital temperature/humidity sensors or EEPROMs. |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 15.5 KB unified memory with 10¹⁵ write endurance and ECC - eliminates flash wear-out concerns in data-logging applications. |
| Capacitive Touch I/O | All 44 GPIOs support capacitive sensing without external components - enables HMI buttons or proximity detection in space-constrained designs. |
| RTC in LPM3.5 | Real-time clock operates at 0.77 µA with 32.768-kHz crystal - maintains timekeeping during ultra-low-power sleep without external RTC IC. |
| Dual Timer_A3 Modules | Two independent 16-bit timers, each with three CCRs - supports simultaneous PWM motor control, input capture for tachometers, and interval timing. |
| Integrated Clock System | On-chip DCO (±1%), REFO, VLO, MODCLK, and XT1 support - removes need for external oscillators in most configurations. |
Applications
| Smoke Detector Node | Industrial Sensor Hub |
|---|---|
Use Scenario: Standalone battery-powered smoke detector with optical chamber and buzzer driver. IC Role / Device Role / Timing Role: Main controller executing smoke algorithm, managing ADC readings, driving piezo alarm, and maintaining RTC for event timestamping. Use Value: LPM4.5 current of 15 nA extends CR2032 battery life beyond 10 years; FRAM stores calibration data across 100k+ power cycles. |
Use Scenario: Remote environmental monitor collecting temperature, humidity, and CO₂ via I²C sensors. IC Role / Device Role / Timing Role: Sensor aggregator with UART uplink to gateway; uses eUSCI_B0 for I²C sensor reads and eUSCI_A0 for serial telemetry. Use Value: Dual eUSCI modules allow concurrent sensor polling and host communication; 2 KB RAM buffers 128 samples before transmission. |
| Low-Power Coprocessor | HMI Controller |
Use Scenario: Secondary MCU supervising power rails and thermal limits in a main processor system. IC Role / Device Role / Timing Role: System supervisor monitoring voltage thresholds via ADC and triggering reset or alert via GPIO. Use Value: SVS circuitry with programmable thresholds detects brown-out events; 16 interrupt-capable I/Os enable rapid response to fault conditions. |
Use Scenario: Touch-enabled control panel for HVAC or lighting systems with LED feedback. IC Role / Device Role / Timing Role: Capacitive touch decoder and LED dimmer using Timer_A PWM outputs. Use Value: All 44 GPIOs support capacitive sensing - enables 12-button UI with no external touch controller; FRAM stores user preferences persistently. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2032IG48 | 8 KB program FRAM + 1 KB RAM; identical peripheral set and pinout. | Lower memory capacity limits firmware complexity and data buffering depth. | Select when application fits within 8 KB code and requires cost optimization without peripheral trade-offs. |
| MSP430FR2355IPM | LQFP-64 package; 32 KB FRAM; enhanced analog (12-bit ADC, op-amps); different pinout and higher I/O count. | Requires PCB redesign; suited for higher-precision sensing or multi-sensor fusion. | Choose for next-generation upgrades needing more memory, precision, or analog integration - not drop-in replacement. |
Compared with MSP430FR2032IG48 and MSP430FR2355IPM, the MSP430FR2033IG48 uniquely balances 15.5 KB FRAM, TSSOP-48 footprint, and sub-µA RTC operation - making it optimal for compact, long-life sensor nodes where memory headroom and package size are co-constrained.
Availability
MSP430FR2033IG48 is available at Aetrix Electronics and suitable for smoke detectors, industrial sensor management, and capacitive HMI controllers requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR2033IG48 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 over 90 years of innovation in low-power design.
The MSP430FR2033 belongs to the FRAM-based ultra-low-power MCU family engineered for energy-harvesting and battery-operated sensing applications demanding decades of operation on coin cells.
FAQ
What is the maximum operating frequency of the MSP430FR2033IG48?
The MSP430FR2033IG48 features a digitally controlled oscillator (DCO) calibrated to operate up to 16 MHz. Its clock system supports programmable MCLK prescaling (1–128) and SMCLK derivation with prescalers of 1, 2, 4, or 8 - enabling precise timing control across active and low-power modes while maintaining ±1% accuracy at room temperature using the on-chip reference.
Does the MSP430FR2033IG48 support capacitive touch sensing on all I/O pins?
Yes, the MSP430FR2033IG48 supports capacitive touch sensing on all 44 general-purpose I/O pins. This capability is implemented in hardware without external components, allowing designers to implement touch buttons, sliders, or proximity detection directly using the integrated CTS module - confirmed in the device's functional description and signal multiplexing table for the G48 package.
What is the FRAM endurance specification for the MSP430FR2033IG48?
The MSP430FR2033IG48 provides 10¹⁵ write cycle endurance for its 15.5 KB FRAM (15 KB program + 512 B information). This value is specified in the datasheet's "Features" section and reflects guaranteed endurance under recommended operating conditions - far exceeding typical flash-based MCUs and eliminating wear-leveling requirements in data-logging applications.
Can the MSP430FR2033IG48 operate from a 1.8-V supply?
Yes, the MSP430FR2033IG48 supports a wide supply voltage range from 1.8 V to 3.6 V. However, minimum supply voltage is constrained by SVS (Supply Voltage Supervisor) thresholds - operation below 1.8 V may disable SVS functionality or cause undefined behavior. The recommended operating condition table confirms 1.8 V as the absolute lower limit for reliable operation across temperature ranges.
How many ADC channels are accessible in the TSSOP-48 package of the MSP430FR2033IG48?
The MSP430FR2033IG48 in TSSOP-48 provides access to 8 ADC input channels (A0 through A7), as confirmed in Table 3-1 (Device Comparison) and the signal descriptions for the G48 package. While the full family supports up to 10 channels, the smaller package omits A8 and A9 - which are only available on the 64-pin LQFP variant.
MSP430FR2033IG48 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 48-TFSOP (0.240", 6.10mm Width)
- Series:
- MSP430™ FRAM
- Packaging:
- Tube
- 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:
MSP430FR2033IG48 FAQ
1.How can I place an order for MSP430FR2033IG48 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2033IG48 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 MSP430FR2033IG48 reliable?
The price and inventory of MSP430FR2033IG48 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2033IG48 is usually 5 days.
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Once your MSP430FR2033IG48 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 MSP430FR2033IG48?
For technical support, including MSP430FR2033IG48 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2033IG48 requirements.
6.How does Aetrix verify that MSP430FR2033IG48 is sourced from the original manufacturer or authorized distributors?
All MSP430FR2033IG48 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 MSP430FR2033IG48 meets industry standards.
7.What is the process for return or replacement of MSP430FR2033IG48?
All MSP430FR2033IG48 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2033IG48, 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 MSP430FR2033IG48 part is unused and in its original packaging.
Return procedure for MSP430FR2033IG48:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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