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Texas Instruments MSP430I2040TRHBT
- Part No.:
- MSP430I2040TRHBT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430I2040TRHBT.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:485
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Product details
Overview
MSP430I2040TRHBT from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller optimized for precision energy metering and battery-powered monitoring applications. It integrates four 24-bit sigma-delta ADCs with differential PGA inputs, operates from 2.2 V to 3.6 V, delivers 16.384-MHz system clock via internal DCO, and supports 16 I/O pins in a 32-pin VQFN (RHB) package.
For engineers reviewing the MSP430I2040TRHBT datasheet, MSP430I2040TRHBT pinout, MSP430I2040TRHBT application, or MSP430I2040TRHBT equivalent, key selection criteria include its 4-channel 24-bit SD24 ADC architecture, LPM4.5 shutdown current of 75 nA, eUSCI_A0 UART/IrDA/SPI and eUSCI_B0 SPI/I²C interfaces, and support for metrology-grade analog signal acquisition in compact form factor.
Technical Context
The MSP430I2040TRHBT implements a 16-bit RISC CPU with constant generators and hardware multiplier for efficient DSP operations in metering firmware. Its analog subsystem centers on four independent SD24 modules-each with programmable gain amplifier, differential input, and 256× oversampling-enabling simultaneous high-resolution current/voltage/temperature sensing.
Digital peripherals include two 16-bit Timer_A modules (each with three capture/compare registers), dual eUSCI modules supporting asynchronous UART with auto-baud detection and synchronous I²C/SPI, and a flexible power management system featuring integrated LDO, supply voltage monitor, brownout detector, and temperature sensor-all coordinated under five low-power modes with sub-µs wake-up latency.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and constant generators for optimized code density in metering firmware |
| ADC Resolution & Count | Four independent 24-bit sigma-delta ADCs with differential PGA inputs for simultaneous multi-channel precision sensing |
| Supply Voltage Range | 2.2 V to 3.6 V - enables direct operation from single Li-ion or 3× alkaline cells without external regulation |
| Low-Power Shutdown | 75 nA in LPM4.5 mode - preserves RAM state while minimizing battery drain in always-on metering endpoints |
| System Clock | 16.384-MHz internal digitally controlled oscillator (DCO) - provides stable timing for metrology sampling without external crystal |
| eUSCI Interfaces | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (SPI/I²C) - supports communication with host MCU, display, or wireless transceiver |
| Package | 32-pin VQFN (RHB), 5 mm × 5 mm - surface-mount footprint suitable for space-constrained smart meter PCBs |
Pinout & Package
The MSP430I2040TRHBT is housed in a 32-pin VQFN (RHB) package with exposed thermal pad recommended to be connected to DVSS. Pin functions are multiplexed across analog inputs, timers, eUSCI peripherals, and JTAG/Spy-Bi-Wire debug interface.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0.0+ / A0.0− | SD24 Channel 0 differential analog input | Accepts high-impedance current/voltage sensor signals with PGA gain up to 32× for noise-immune metrology front-end |
| P1.4 / P1.5 / P1.6 | eUSCI_B0 SPI/I²C interface pins | Supports isolated communication with external EEPROM or energy measurement IC via standard bus protocols |
| P2.0 / P2.1 / P2.2 | Timer_A1 capture/compare outputs | Generate precise PWM waveforms for LED indicators or control signals in smart plug applications |
| RST/NMI/SBWTDIO | Reset, NMI, and Spy-Bi-Wire data I/O | Enables in-system programming and debugging using TI's MSP-FET or LaunchPad tools without external header |
| VREF | External reference voltage input | Accepts precision 2.5 V reference for SD24 ADCs to achieve ±0.1% full-scale accuracy in revenue-grade metering |
Key Features
| Feature | Design Value |
|---|---|
| Four 24-bit SD24 ADCs | Enables concurrent high-resolution acquisition of voltage, current, neutral, and auxiliary channels in single-phase meters |
| 75 nA LPM4.5 current | Extends battery life beyond 10 years in tamper-detection or backup power monitoring circuits |
| eUSCI_A0 with IrDA | Permits optical communication with handheld readers for field calibration and firmware updates without physical connectors |
| Integrated LDO & VCORE | Provides stable 1.8-V core supply independent of analog/digital rail fluctuations, improving ADC stability and noise immunity |
| 1 µs wake-up from LPM3 | Allows rapid response to interrupt-driven events such as zero-crossing detection or tamper alerts without timing penalty |
Applications
| Metering | Smart Plugs |
|---|---|
Use Scenario: Revenue-grade electricity measurement in residential single-phase meters with anti-tampering features. IC Role / Device Role / Timing Role: Primary metrology controller performing real-time RMS, harmonic, and energy calculations using SD24 ADC outputs. Use Value: Four independent 24-bit ADC channels eliminate need for external multiplexers or additional MCUs, reducing BOM cost and board area by 30%. | Use Scenario: Energy-aware outlet with load monitoring, scheduling, and local decision-making. IC Role / Device Role / Timing Role: Standalone sensing and control unit acquiring voltage/current, computing real-time power, and driving relay via GPIO. Use Value: Ultra-low shutdown current (75 nA) enables >5-year battery life in backup power mode during grid outages. |
| Industrial Sensors | Medical Patient Monitoring |
Use Scenario: Battery-powered environmental sensor node measuring temperature, humidity, and air quality parameters. IC Role / Device Role / Timing Role: Analog front-end aggregator converting multiple sensor outputs into digital values for BLE/Wi-Fi transmission. Use Value: Integrated PGA and 24-bit resolution allow direct connection of low-output thermistors and capacitive humidity sensors without signal conditioning ICs. | Use Scenario: Portable multi-parameter vital sign monitor tracking ECG, SpO₂, and respiration simultaneously. IC Role / Device Role / Timing Role: Precision analog acquisition engine synchronizing multiple biopotential channels with programmable gain and offset calibration. Use Value: Differential SD24 inputs reject common-mode noise from electrode interfaces, achieving >100 dB CMRR at 50/60 Hz without external instrumentation amplifiers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar metrology microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430I2041TRHBT | 32 KB flash / 2 KB RAM vs. 16 KB / 1 KB; identical ADC count, peripherals, and package | Suitable for larger firmware with advanced diagnostics, OTA updates, or extended calibration tables | Select when firmware size exceeds 16 KB or future scalability is required without PCB redesign |
| MSP430I2030TRHBT | Three 24-bit SD24 ADCs (vs. four); same voltage range, LPM4.5 current, and eUSCI interfaces | Targeted at cost-sensitive submetering or single-channel monitoring where fourth ADC is unused | Choose for simplified designs requiring only three analog inputs to reduce software complexity and validation effort |
Compared with MSP430I2041TRHBT and MSP430I2030TRHBT, the MSP430I2040TRHBT offers optimal balance of analog channel count, memory resources, and power efficiency for mid-tier single-phase metering and portable sensor applications - avoiding over-provisioning while retaining headroom for feature expansion.
Availability
MSP430I2040TRHBT is available at Aetrix Electronics and suitable for metering, smart plug, and industrial sensor applications requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for MSP430I2040TRHBT 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 MSP430I2040TRHBT belongs to TI's Metrology and Monitoring MCU portfolio, designed specifically for high-accuracy energy measurement, battery-operated sensing, and low-power embedded control in utility and IoT edge devices.
FAQ
What is the maximum ADC sampling rate supported by the MSP430I2040TRHBT?
The MSP430I2040TRHBT supports up to 256 kSPS aggregate sampling across its four SD24 ADCs when configured with OSR = 256 and internal reference. Individual channel throughput depends on oversampling ratio and gain settings - typical effective sampling rates range from 1.9 kSPS (24-bit, OSR=256) to 15.6 kSPS (16-bit, OSR=32). The MSP430I2040TRHBT datasheet specifies timing limits in Section 8.7.7.
Does the MSP430I2040TRHBT support hardware-based AES encryption?
No, the MSP430I2040TRHBT does not include dedicated hardware AES acceleration. It relies on software libraries for cryptographic operations. Security-critical applications requiring hardware-accelerated encryption should consider TI's MSP430FR59xx or MSP432P4x families. The MSP430I2040TRHBT focuses on analog precision and ultra-low-power operation rather than cryptographic processing.
Can the MSP430I2040TRHBT operate from a 1.8-V supply?
No, the MSP430I2040TRHBT requires a minimum supply voltage of 2.2 V per its absolute maximum ratings and recommended operating conditions. Operation below 2.2 V may result in unstable ADC performance, SRAM retention loss, or failure to exit low-power modes. For 1.8-V systems, TI recommends the MSP430FR2355 or MSP430FR2476 FRAM-based MCUs.
What development tools are officially supported for the MSP430I2040TRHBT?
Texas Instruments officially supports the EVM430-I2040S evaluation module for metering, the MSP-TS430RHB32A 100-pin target board, and Code Composer Studio IDE with MSP430Ware™ code examples. The MSP430I2040TRHBT is also compatible with the MSP-FET debugger and LaunchPad development kits using Spy-Bi-Wire interface. TI's Energy Measurement Design Center provides validated metrology firmware frameworks.
Is the thermal pad on the MSP430I2040TRHBT's RHB package electrically connected?
Yes, the exposed thermal pad on the MSP430I2040TRHBT's 32-pin VQFN (RHB) package is internally connected to DVSS and must be soldered to a DVSS copper pour on the PCB for proper thermal dissipation and electrical stability. TI documentation explicitly recommends connecting the thermal pad to DVSS to ensure reliable operation under continuous ADC conversion loads.
MSP430I2040TRHBT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- MSP430I2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16.384Mhz
- Connectivity:
- I2C, IrDA, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 2.2V ~ 3.6V
- Data Converters:
- A/D 4x24b Sigma-Delta
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430I2040TRHBT FAQ
1.How can I place an order for MSP430I2040TRHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430I2040TRHBT 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 MSP430I2040TRHBT reliable?
The price and inventory of MSP430I2040TRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430I2040TRHBT is usually 5 days.
3.What payment methods are accepted for MSP430I2040TRHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430I2040TRHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430I2040TRHBT?
MSP430I2040TRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430I2040TRHBT 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 MSP430I2040TRHBT?
For technical support, including MSP430I2040TRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430I2040TRHBT requirements.
6.How does Aetrix verify that MSP430I2040TRHBT is sourced from the original manufacturer or authorized distributors?
All MSP430I2040TRHBT 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 MSP430I2040TRHBT meets industry standards.
7.What is the process for return or replacement of MSP430I2040TRHBT?
All MSP430I2040TRHBT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430I2040TRHBT, 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 MSP430I2040TRHBT part is unused and in its original packaging.
Return procedure for MSP430I2040TRHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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