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Texas Instruments MSP430FR2032IG48R
- Part No.:
- MSP430FR2032IG48R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 48-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR2032IG48R.pdf
- Description:
- IC MCU 16BIT 8.5KB FRAM 48TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,863
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Product details
Overview
MSP430FR2032IG48R from Texas Instruments is a 16-bit RISC mixed-signal microcontroller with 8KB program FRAM, 512B information FRAM, and 1KB RAM, operating from 1.8 V to 3.6 V. It integrates a 10-channel 10-bit ADC (200 ksps), dual eUSCI modules (UART/I²C/SPI), two Timer_A3 peripherals, RTC counter, and capacitive touch I/O-designed for ultra-low-power sensor management in battery-operated fire detectors.
For engineers reviewing the MSP430FR2032IG48R datasheet, MSP430FR2032IG48R pinout, MSP430FR2032IG48R application, or MSP430FR2032IG48R equivalent, key selection criteria include FRAM endurance (10¹⁵ write cycles), LPM3.5 current (0.77 µA with 32.768-kHz crystal), TSSOP-48 package footprint, and integrated IR modulation logic for remote-sensing interfaces.
Technical Context
The MSP430FR2032IG48R implements a digitally controlled oscillator (DCO) with FLL, achieving ±1% MCLK accuracy at room temperature using the on-chip REFO. Its clock system supports multiple sources: internal VLO (10 kHz), MODCLK, REFO (32 kHz), DCO (up to 16 MHz), and external XT1 (32.768 kHz crystal).
It features two independent Timer_A3 modules-each with three capture/compare registers-where CCR0 serves internal period timing only, while CCR1/CCR2 are externally connected for PWM, input capture, or output compare. The RTC counter operates autonomously in LPM3.5, maintaining timekeeping while all other peripherals remain powered down.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with constant generators; enables high code efficiency and sub-10-µs wake-from-LPM active transition |
| FRAM Capacity | 8KB program + 512B information FRAM; unified nonvolatile memory with ECC, 10¹⁵ write endurance, radiation resistant |
| ADC Performance | 10-bit SAR ADC, 10 channels, 200 ksps sample rate, internal 1.5-V reference, supports single-ended analog inputs A0–A9 |
| Low-Power Modes | LPM3.5 with RTC: 0.77 µA @ 3 V / 32.768-kHz crystal; LPM4.5 shutdown: 15 nA; Active mode: 126 µA/MHz @ 3 V |
| Communication Peripherals | eUSCI_A0: UART, IrDA, SPI; eUSCI_B0: SPI and I²C; both support automatic baud-rate detection and clock stretching |
| Package & Pins | TSSOP-48 (G48); 44 bonded I/O pins; all configurable as capacitive touch I/O; P1/P2 support wake-from-LPM interrupt |
| Clock Sources | On-chip DCO (16 MHz), REFO (32 kHz), VLO (10 kHz), MODCLK; external XT1 crystal input (32.768 kHz); programmable MCLK/SMCLK prescalers |
Pinout & Package
TSSOP-48 (G48) package, 12.5 mm × 6.1 mm body size, 0.5 mm pitch, thermally enhanced leadframe; pin count reduced vs. LQFP-64 due to unbonded I/Os (P5.7, P5.6, P6.7, P6.6, P7.7, P7.6, P7.5, P7.4, P8.3, P8.2, P8.1, P8.0 not present).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / SBW data I/O | Active-low reset with nonmaskable interrupt capability; shared with Spy-Bi-Wire debug interface; requires pullup for reliable startup |
| TEST/SBWTCK | SBW test clock input | Debug clock input for programming and emulation; must be driven low during normal operation if not used for debug |
| P1.0–P1.7 | Analog/digital I/O with timer/USCI/ADC functions | Primary peripheral multiplexing zone: includes UCA0TXD/RXD, TA0.1/TA0.2, TDO/TDI, A0–A7; all support capacitive touch sensing |
| P2.0–P2.7 | Digital I/O with interrupt capability | 16-pin interrupt-capable port (P1+P2); wakes MCU from LPM3.5; no analog or timer functions assigned |
| P3.0–P3.7 | General-purpose I/O | 8-pin port with no secondary peripheral assignments in G48; software-configurable for GPIO or capacitive touch only |
| P4.0–P4.7 | General-purpose I/O with XT1 interface | XIN/XOUT on P4.1/P4.2 enable 32.768-kHz crystal for RTC; remaining pins are GPIO-only in G48 |
| P5.0–P5.4 | eUSCI_B0 I/O (I²C/SPI) | UCB0STE, UCB0CLK, UCB0SIMO/SDA, UCB0SOMI/SCL - full hardware I²C master/slave and SPI support |
| P5.5–P5.6 | General-purpose I/O | No secondary functions in G48; reserved for GPIO or capacitive touch; must be initialized post-reset to minimize leakage |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8KB program + 512B info FRAM with built-in ECC, 10¹⁵ write cycles, zero write latency, radiation-hardened for industrial environments |
| Ultra-Low-Power RTC | Real-time clock counter functional in LPM3.5 at 0.77 µA with external 32.768-kHz crystal-enables decade-scale battery life in smoke detectors |
| Capacitive Touch I/O | All 44 I/O pins support capacitive sensing without external components; eliminates BOM cost and PCB area for HMI touch buttons |
| IR Modulation Logic | Hardware-level IR carrier generation (30–60 kHz) synchronized to timer outputs-reduces firmware overhead for remote control receivers |
| Integrated Power Management | SVS with programmable thresholds, BOR, and LPMx.5 modes ensure robust operation across 1.8–3.6 V supply range in varying battery conditions |
Applications
| Smoke or Fire Detectors | Glass Breakage Detectors |
|---|---|
Use Scenario: Battery-powered residential smoke alarm with self-test, hush function, and interconnect capability via RF or wired bus. IC Role / Device Role / Timing Role: Primary system controller managing CO/heat/optical sensors, driving piezo alarm, handling wireless transmission timing, and maintaining RTC for event logging. Use Value: LPM4.5 current of 15 nA extends 9-V alkaline battery life beyond 10 years; FRAM enables reliable event log storage without wear-out concerns. | Use Scenario: Standalone acoustic glass-break sensor mounted near windows in security systems, detecting high-frequency shock waves (10–15 kHz). IC Role / Device Role / Timing Role: Signal acquisition controller sampling microphone output via 10-bit ADC, executing FFT-based pattern recognition in FRAM-resident code, triggering alarm output. Use Value: 200 ksps ADC sampling rate captures transient break signatures; capacitive touch I/O enables tamper-detection on enclosure lid. |
| Industrial Sensor Management | Temperature Sensors or Controllers |
Use Scenario: Wireless node monitoring pressure, humidity, and vibration in HVAC ducts or factory equipment, transmitting data via Sub-GHz RF link. IC Role / Device Role / Timing Role: Low-power coprocessor aggregating sensor data, performing CRC-16 integrity checks, managing sleep/wake cycles aligned to RF transmit slots. Use Value: Dual eUSCI modules allow simultaneous SPI to local sensors and UART to RF transceiver; 126 µA/MHz active current minimizes energy per measurement cycle. | Use Scenario: Programmable thermostat with ambient and remote probe inputs, display backlight control, and scheduling via RTC calendar functions. IC Role / Device Role / Timing Role: System-on-chip managing 10-bit ADC readings from thermistors, driving LED/LCD segments, executing PID loop via FRAM-stored coefficients, and maintaining accurate time-of-day. Use Value: Internal 1.5-V ADC reference ensures stable conversion across temperature; RTC counter with LPM3.5 mode enables precise 24-hour scheduling at <1 µA quiescent draw. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430FR2033IG48R | 15KB + 512B FRAM, 2KB RAM, 10 ADC channels (vs. 8 in G48 variant), same TSSOP-48 package and pinout | Higher memory headroom for complex sensor fusion or OTA firmware updates; identical peripheral set and power profile | Select when >8KB FRAM required for application code or data logging; fully pin-compatible drop-in replacement |
| MSP430FR2111IPW20R | 20-pin TSSOP, 2KB FRAM + 512B info FRAM + 1KB RAM, single eUSCI (UART/SPI), no RTC, 8 ADC channels | Smaller footprint and lower cost for simpler sensing nodes where RTC and dual communication interfaces are unnecessary | Choose for space-constrained, cost-sensitive designs lacking real-time clock or I²C requirements; not pin-compatible |
Compared with MSP430FR2033IG48R, the MSP430FR2032IG48R trades FRAM capacity for identical low-power performance and peripheral integration in the same TSSOP-48 package; versus MSP430FR2111IPW20R, it delivers full RTC, dual eUSCI, and 44 I/Os at the cost of larger footprint and higher unit price.
Availability
MSP430FR2032IG48R is available at Aetrix Electronics and suitable for smoke detectors, industrial sensor nodes, and temperature controllers requiring stable component supply across multi-year production cycles.
Supply support for MSP430FR2032IG48R 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 with emphasis on power efficiency, reliability, and system integration.
The MSP430FR203x product line targets ultra-low-power sensing and measurement applications-specifically designed to replace legacy flash-based MCUs in battery-critical devices like safety alarms and portable instrumentation.
FAQ
What is the maximum operating frequency of the MSP430FR2032IG48R CPU core?
The MSP430FR2032IG48R features a 16-bit RISC CPU with a digitally controlled oscillator (DCO) that supports up to 16 MHz operation. This maximum frequency is achievable with the FLL enabled and calibrated against the internal REFO (32 kHz) or external crystal reference, maintaining ±1% accuracy at room temperature. The DCO allows the MSP430FR2032IG48R to wake from LPM3.5 into active mode in under 10 µs, making it suitable for responsive sensor wakeup applications.
Does the MSP430FR2032IG48R support hardware real-time clock functionality with battery backup?
Yes, the MSP430FR2032IG48R includes a dedicated 16-bit RTC counter module that operates in LPM3.5 mode with an external 32.768-kHz crystal connected to XIN/XOUT (P4.1/P4.2), drawing only 0.77 µA at 3 V. While the device does not integrate a separate VBAT rail, the RTC remains functional as long as DVCC is maintained above 1.8 V. For true battery-backed RTC, external circuitry (e.g., supercapacitor or coin cell with diode OR-ing) must be added to sustain DVCC during main power loss.
How many ADC channels are available on the MSP430FR2032IG48R, and what is their resolution and sampling rate?
The MSP430FR2032IG48R integrates a 10-bit successive approximation register (SAR) ADC with up to 8 analog input channels (A0–A7) in the TSSOP-48 package. It achieves a maximum sampling rate of 200 ksps with internal 1.5-V reference, supporting single-ended acquisition. Channel selection is software-controlled, and conversions can be triggered by timers or software. The ADC's design enables accurate temperature and environmental sensing in applications such as smoke detectors and thermostats using the MSP430FR2032IG48R.
Is the MSP430FR2032IG48R pin-compatible with other members of the MSP430FR203x family?
Yes, the MSP430FR2032IG48R is pin-compatible with the MSP430FR2033IG48R in the same TSSOP-48 (G48) package-sharing identical pin assignments, electrical characteristics, and peripheral mappings. However, it is not pin-compatible with PM (LQFP-64) or G56 (TSSOP-56) variants due to differing pin counts and bonding patterns. Engineers may upgrade to MSP430FR2033IG48R for increased FRAM (15KB vs. 8KB) without layout changes, as confirmed by TI's Device Comparison table.
What debug interface does the MSP430FR2032IG48R support, and what pins are required?
The MSP430FR2032IG48R supports the Spy-Bi-Wire (SBW) debug interface using two dedicated pins: RST/NMI/SBWTDIO (pin 16) and TEST/SBWTCK (pin 17). SBW provides full JTAG-equivalent functionality-including flash programming, breakpoint setting, and real-time register inspection-with reduced pin count versus standard JTAG. No additional pull-up/pull-down resistors are required, but TEST/SBWTCK must be held low during normal operation if not actively used for debugging.
MSP430FR2032IG48R 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:
- 8.5KB (8.5K x 8)
- Program Memory Type:
- FRAM
- EEPROM Size:
- -
- RAM Size:
- 1K 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:
MSP430FR2032IG48R FAQ
1.How can I place an order for MSP430FR2032IG48R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2032IG48R 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 MSP430FR2032IG48R reliable?
The price and inventory of MSP430FR2032IG48R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2032IG48R is usually 5 days.
3.What payment methods are accepted for MSP430FR2032IG48R?
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4.How is shipping managed for MSP430FR2032IG48R?
MSP430FR2032IG48R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2032IG48R 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 MSP430FR2032IG48R?
For technical support, including MSP430FR2032IG48R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2032IG48R requirements.
6.How does Aetrix verify that MSP430FR2032IG48R is sourced from the original manufacturer or authorized distributors?
All MSP430FR2032IG48R 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 MSP430FR2032IG48R meets industry standards.
7.What is the process for return or replacement of MSP430FR2032IG48R?
All MSP430FR2032IG48R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2032IG48R, 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 MSP430FR2032IG48R part is unused and in its original packaging.
Return procedure for MSP430FR2032IG48R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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