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Texas Instruments MSP430FR2032IG56
- Part No.:
- MSP430FR2032IG56
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 56-TFSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430FR2032IG56.pdf
- Description:
- IC MCU 16BIT 8.5KB FRAM 56TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:298
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Product details
Overview
MSP430FR2032IG56 from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller featuring 8KB+512B FRAM, 1KB RAM, 8-channel 10-bit ADC, dual eUSCI (UART/I²C/SPI), two Timer_A3 modules with three capture/compare registers each, and operation down to 1.8 V. It delivers 126 µA/MHz active current and 0.4 µA LPM3.5 standby, targeting battery-powered sensor nodes and industrial supervisory systems.
For engineers reviewing the MSP430FR2032IG56 datasheet, MSP430FR2032IG56 pinout, MSP430FR2032IG56 application, or MSP430FR2032IG56 equivalent, key selection criteria include FRAM endurance (10¹⁵ cycles), capacitive-touch I/O support across all pins, RTC-enabled LPM3.5 (0.77 µA with 32.768-kHz crystal), and TSSOP-56 package compatibility with space-constrained PCB layouts.
Technical Context
The MSP430FR2032IG56 integrates a 16-MHz DCO with FLL-based frequency locking (±1% accuracy at room temperature), on-chip REFO (32 kHz), VLO (10 kHz), MODCLK, and external XT1 crystal support. Its clock system enables dynamic MCLK/SMCLK scaling via programmable prescalers (1–128 for MCLK; 1, 2, 4, 8 for SMCLK).
Peripherals include two independent eUSCI modules-eUSCI_A0 supporting UART, IrDA, and SPI; eUSCI_B0 supporting SPI and I²C-and a 16-bit CRC engine. The ADC provides 200 ksps sampling with internal 1.5-V reference and 10 single-ended channels (8 available in TSSOP-56).
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 to active mode |
| Memory Configuration | 8KB program FRAM + 512B information FRAM + 1KB SRAM; unified memory simplifies firmware updates and data logging |
| ADC Performance | 10-bit SAR ADC, 8 channels (TSSOP-56), 200 ksps sample rate, internal 1.5-V reference; supports fast sensor acquisition without external references |
| Low-Power Modes | LPM3.5 draws 0.77 µA with RTC + 32.768-kHz crystal; LPM4.5 shutdown consumes only 15 nA-critical for multi-year battery life |
| Supply Range | 1.8 V to 3.6 V; minimum voltage constrained by SVS thresholds, enabling direct coin-cell (2.0–3.0 V) or Li-ion (3.0–3.6 V) operation |
| Package & I/O | TSSOP-56 (14.0 mm × 6.1 mm); 52 GPIOs, all configurable as capacitive-touch I/O-no external touch controller required |
| Communication Interfaces | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (SPI/I²C); dual independent serial engines support concurrent host and sensor bus communication |
Pinout & Package
TSSOP-56 (G56) package: 14.0 mm × 6.1 mm body size, 0.5-mm pitch, surface-mount, lead-free, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO | Reset / NMI input / SBW data I/O | Single-pin debug interface (Spy-Bi-Wire); resets MCU or triggers nonmaskable interrupt; eliminates need for dedicated JTAG header |
| TEST/SBWTCK | SBW test clock input | Enables in-circuit programming and debugging using TI's MSP-FET or LaunchPad; no external debugger hardware required |
| P1.0–P1.7 | Port 1 general-purpose I/O | 8 pins with interrupt capability; P1.0–P1.3 serve as ADC inputs A0–A3 and eUSCI_A0 signals; supports wake-from-LPM |
| P4.1/XIN & P4.2/XOUT | XT1 crystal oscillator terminals | Supports 32.768-kHz watch crystal for RTC; enables precise timekeeping in LPM3.5 with 0.77 µA current draw |
| P5.0–P5.3 | eUSCI_B0 I²C/SPI interface | P5.0 (STE), P5.1 (CLK), P5.2 (SDA/SIMO), P5.3 (SCL/SOMI); full hardware I²C master/slave or SPI peripheral control |
| TA0.1/TA0.2 & TA1.1/TA1.2 | Timer_A3 capture/compare outputs | Four dedicated PWM/capture pins (P1.7, P1.6, P4.0, P8.3); enable motor control, LED dimming, or pulse-width measurement |
Key Features
| Feature | Design Value |
|---|---|
| Ferroelectric RAM (FRAM) | 8KB program + 512B info FRAM with ECC; 10¹⁵ write cycles and radiation tolerance enable robust data logging in harsh environments |
| Capacitive Touch I/O | All 52 GPIOs support capacitive sensing; eliminates external touch ICs and reduces BOM cost for HMI applications like smoke detector keypads |
| Real-Time Clock (RTC) | Dedicated 16-bit counter with crystal support; operates in LPM3.5 at 0.77 µA-enables calendar/time-stamped sensor events without waking CPU |
| Intelligent Power Management | SVS with programmable thresholds; automatic brown-out reset; 15-nA LPM4.5 shutdown extends shelf life of sealed industrial sensors |
| IR Modulation Logic | Hardware IR carrier generation (30–60 kHz); offloads CPU for remote-control signal transmission-reduces active time and power consumption |
Applications
| Smoke Detector Controller | Glass Breakage Sensor |
|---|---|
Use Scenario: Standalone battery-powered smoke alarm with optical chamber, buzzer, and LED indicators. IC Role / Device Role / Timing Role: Main system controller executing smoke detection algorithm, driving audible/visual alerts, and managing low-power sleep/wake cycles. Use Value: 0.4 µA LPM3.5 and 15 nA LPM4.5 enable >10-year coin-cell operation; FRAM ensures reliable event logging across power loss. |
Use Scenario: Acoustic sensor node detecting high-frequency glass fracture signatures in security systems. IC Role / Device Role / Timing Role: Signal acquisition front-end with ADC oversampling, digital filtering, and wake-on-event trigger. Use Value: 200 ksps ADC sampling captures transient audio bursts; capacitive-touch I/O enables tamper-detection housing interface. |
| Industrial Sensor Supervisor | HMI Keypad Controller |
Use Scenario: Field-deployed temperature/humidity monitor with RS-485 backhaul and local display. IC Role / Device Role / Timing Role: Low-power coprocessor handling sensor reads, CRC validation, and UART-to-RS485 translation. Use Value: Dual eUSCI modules allow simultaneous sensor bus (I²C) and host interface (UART); FRAM stores calibration coefficients securely. |
Use Scenario: Touch-sensitive control panel for HVAC or building automation with backlight dimming. IC Role / Device Role / Timing Role: Capacitive-touch manager with LED/PWM output for backlight control and status indication. Use Value: All 52 GPIOs support CSD; hardware IR modulation drives remote control output-no external transceiver needed. |
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 |
|---|---|---|---|
| MSP430FR2033IG56 | 15KB+512B FRAM, 2KB RAM, 10 ADC channels; identical TSSOP-56 pinout and peripheral set | Higher memory headroom for complex sensor fusion or OTA firmware updates | Select when firmware size exceeds 8KB or additional RAM is required for buffering sensor streams |
| MSP430FR2355IPM | LQFP-64 package; 16KB FRAM, 2KB RAM, enhanced analog (12-bit ADC, op-amps, DAC); not pin-compatible | Requires PCB redesign but adds analog signal conditioning capability for precision sensor front-ends | Choose when integrated op-amps or higher-resolution ADC are needed-avoid if TSSOP-56 footprint must be retained |
Compared with MSP430FR2032IG56, MSP430FR2033IG56 offers drop-in memory scalability within the same package, while MSP430FR2355IPM trades pin compatibility for expanded analog integration-making it suitable for next-generation designs where layout flexibility exists.
Availability
MSP430FR2032IG56 is available at Aetrix Electronics and suitable for smoke detectors, industrial sensor supervisors, glass breakage monitors, and HMI keypad controllers requiring stable component supply and long-term production continuity.
Supply support for MSP430FR2032IG56 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 MSP430FR20xx product line targets cost-sensitive, battery-operated sensing and control applications-delivering FRAM-based reliability, sub-µA sleep modes, and integrated peripherals in compact packages.
FAQ
What is the maximum operating frequency of the MSP430FR2032IG56?
The MSP430FR2032IG56 features a digitally controlled oscillator (DCO) with frequency-locked loop (FLL) that supports up to 16 MHz operation. At room temperature with the on-chip reference, the DCO achieves ±1% accuracy-sufficient for UART timing and real-time control without external crystals for core clocking. The MSP430FR2032IG56 maintains this performance across its 1.8 V to 3.6 V supply range.
Does the MSP430FR2032IG56 support hardware real-time clock (RTC) functionality?
Yes, the MSP430FR2032IG56 includes a dedicated 16-bit RTC counter that operates independently in LPM3.5 mode. When paired with an external 32.768-kHz crystal on P4.1/XIN and P4.2/XOUT, it draws only 0.77 µA-enabling precise timekeeping and calendar functions during ultra-low-power sleep. The RTC is fully accessible via registers and generates interrupts without CPU intervention.
How many ADC channels are available on the MSP430FR2032IG56 in the TSSOP-56 package?
The MSP430FR2032IG56 provides 8 single-ended ADC input channels in the TSSOP-56 (G56) package. These correspond to analog inputs A0 through A7, mapped to pins P1.0–P1.3, P1.4/VREF+, P1.5/A5, P1.6/A6, and P1.7/A7. While the device supports up to 10 channels in larger packages, two channels (A8, A9) are not bonded out in G56 and are unavailable.
Can the MSP430FR2032IG56 perform capacitive touch sensing on all I/O pins?
Yes, all 52 general-purpose I/O pins on the MSP430FR2032IG56 support capacitive touch sensing via the integrated CapTIvate™-compatible peripheral. No external components are required-each pin can be configured as a self- or mutual-capacitance sensor. This enables full-keypad HMI implementation, proximity detection, or tamper-sensing enclosures using only the MSP430FR2032IG56.
What debug interface does the MSP430FR2032IG56 use, and what hardware is required?
The MSP430FR2032IG56 uses the two-wire Spy-Bi-Wire (SBW) interface for programming and debugging, implemented on pins RST/NMI/SBWTDIO and TEST/SBWTCK. Only a TI MSP-FET or compatible LaunchPad debugger is required-no JTAG header or additional signals are needed. SBW enables full flash read/write, breakpoint setting, and real-time register inspection directly through the production package pins.
MSP430FR2032IG56 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 56-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:
- 52
- 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:
MSP430FR2032IG56 FAQ
1.How can I place an order for MSP430FR2032IG56 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430FR2032IG56 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 MSP430FR2032IG56 reliable?
The price and inventory of MSP430FR2032IG56 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430FR2032IG56 is usually 5 days.
3.What payment methods are accepted for MSP430FR2032IG56?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430FR2032IG56 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430FR2032IG56?
MSP430FR2032IG56 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430FR2032IG56 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 MSP430FR2032IG56?
For technical support, including MSP430FR2032IG56 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430FR2032IG56 requirements.
6.How does Aetrix verify that MSP430FR2032IG56 is sourced from the original manufacturer or authorized distributors?
All MSP430FR2032IG56 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 MSP430FR2032IG56 meets industry standards.
7.What is the process for return or replacement of MSP430FR2032IG56?
All MSP430FR2032IG56 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430FR2032IG56, 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 MSP430FR2032IG56 part is unused and in its original packaging.
Return procedure for MSP430FR2032IG56:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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