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Texas Instruments MSP430I2020TRHBR
- Part No.:
- MSP430I2020TRHBR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430I2020TRHBR.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,311
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Product details
Overview
MSP430I2020TRHBR from Texas Instruments is a 16-bit ultra-low-power mixed-signal microcontroller designed for precision energy metering and sensor signal acquisition. It integrates two 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 - enabling high-accuracy current/voltage sensing in single-phase AC/DC power monitoring systems.
For engineers reviewing the MSP430I2020TRHBR datasheet, MSP430I2020TRHBR pinout, MSP430I2020TRHBR application, or MSP430I2020TRHBR equivalent, key selection criteria include its dual 24-bit SD24 ADC architecture, LPM4.5 shutdown current of 75 nA, integrated LDO core regulator, eUSCI_A0 UART/IrDA/SPI and eUSCI_B0 SPI/I²C interfaces, and support for metering-class analog front-end design with differential PGA gain control.
Technical Context
The MSP430I2020TRHBR implements a 16-bit RISC CPU with constant generators and hardware multiplier for efficient DSP operations in metrology applications. Its analog subsystem centers on two independent 24-bit sigma-delta ADCs (SD24), each configurable with programmable gain amplifiers and differential input pairs - optimized for direct connection to current shunts or CT/PT sensors.
Digital peripherals include two 16-bit Timer_A modules (each with three capture/compare registers), dual eUSCI modules (eUSCI_A0 supporting UART with auto-baud detection and IrDA, eUSCI_B0 supporting SPI and I²C), and a flexible clock system with 16.384-MHz DCO, external resistor tuning (ROSC), and ACLK/SMCLK/MCLK routing - all managed under five low-power modes including LPM4.5 (75 nA).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with hardware multiplier; enables efficient fixed-point math for energy calculation algorithms. |
| ADC Resolution & Count | Two independent 24-bit sigma-delta ADCs (SD24); supports simultaneous high-precision current and voltage sampling in metering. |
| Supply Voltage Range | 2.2 V to 3.6 V; compatible with standard 3.3-V industrial rails and battery-backed operation. |
| Ultra-Low-Power Modes | LPM4.5 shutdown current = 75 nA at 3.0 V; enables multi-year battery life in portable or tamper-resistant metering endpoints. |
| Integrated Power Management | On-chip LDO generates regulated 1.8-V VCORE; eliminates need for external core regulator in compact designs. |
| Communication Interfaces | eUSCI_A0 (UART/IrDA/SPI) + eUSCI_B0 (SPI/I²C); supports isolated RS-485 communication and sensor bus integration. |
| Package & Pin Count | 32-pin VQFN (RHB), 5 mm × 5 mm; provides 16 GPIOs with timer capture/compare, ADC input, and peripheral multiplexing. |
Pinout & Package
Package: 32-pin VQFN (RHB), 5 mm × 5 mm, thermal pad recommended to be connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0.0+/A0.0- | SD24 Channel 0 differential analog input | Direct connection point for current-sense shunt or CT secondary; supports PGA gain configuration up to 32×. |
| A1.0+/A1.0- | SD24 Channel 1 differential analog input | Primary voltage-sense interface for AC line or DC bus; referenced to internal/external VREF (pin 9). |
| VREF | External reference voltage input | Accepts external precision reference (e.g., REF3030) when SD24REFS = 0; otherwise internally bypassed. |
| RST/NMI/SBWTDIO | Reset / NMI input / Spy-Bi-Wire data I/O | Single-pin debug interface for programming and in-circuit emulation; requires no JTAG header. |
| P1.4/UCB0STE/TA0.0 | GPIO / eUSCI_B0 SPI slave enable / TA0 CCR0 | Configurable as timer capture input for zero-crossing detection or as SPI chip select for external flash/RTC. |
| P2.3/VMONIN | Voltage monitor input | Monitors supply rail (VCC) for brownout detection; threshold programmable via VMONCTL register. |
Key Features
| Feature | Design Value |
|---|---|
| Dual 24-bit SD24 ADCs with PGA | Enables simultaneous high-resolution current and voltage measurement without external signal conditioning ICs. |
| 75-nA LPM4.5 shutdown mode | Supports battery-powered submeters with >10-year shelf life and instant wake-up on tamper or event interrupt. |
| eUSCI_A0 with IrDA encoder/decoder | Allows optical infrared communication for utility-side firmware updates and secure meter reading without wiring. |
| Integrated 1.8-V LDO (VCORE) | Reduces BOM count by eliminating discrete core regulator; improves PSRR for noise-sensitive analog measurements. |
| 16.384-MHz DCO with ROSC tuning | Provides stable, calibration-free system clock for time-based energy accumulation (Wh, VARh) without crystal. |
Applications
| Metering Endpoint | Smart Plug Monitoring |
|---|---|
|
Use Scenario: Residential electricity meter measuring active/reactive power on single-phase AC lines. IC Role / Device Role / Timing Role: Primary metrology MCU performing real-time 24-bit ADC sampling, RMS/FFT computation, and pulse output generation. Use Value: Dual SD24 channels acquire voltage and current simultaneously with <10 ppm linearity error, enabling Class 0.5 accuracy per IEC 62053-21. |
Use Scenario: UL-certified smart plug with load current, voltage, and energy consumption telemetry. IC Role / Device Role / Timing Role: Embedded measurement controller interfacing shunt resistor and voltage divider, communicating via UART to ESP32 host. Use Value: Integrated PGA and 24-bit resolution resolve milliamp-level standby loads (<10 mA) while maintaining 1% full-scale accuracy across 0–16 A range. |
| Industrial Sensor Node | Medical Patient Monitor |
|
Use Scenario: Battery-powered DIN-rail sensor aggregating temperature, humidity, and leakage current in HVAC panels. IC Role / Device Role / Timing Role: Low-power data acquisition hub with SPI-connected environmental sensors and isolated current sensing. Use Value: LPM3 standby current of 210 µA at 3.0 V enables 5+ year operation on CR2032; eUSCI_B0 handles I²C sensor polling. |
Use Scenario: Portable multi-parameter patient monitor acquiring ECG, respiration, and SpO₂ analog signals. IC Role / Device Role / Timing Role: Analog front-end processor digitizing differential biopotential signals with programmable gain and filtering. Use Value: Differential SD24 inputs reject common-mode noise from 50/60 Hz mains; PGA gain settings match electrode impedance variations across patients. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar metrology microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430I2030TRHBR | Three 24-bit SD24 ADCs; 16 KB Flash, 1 KB RAM; same package and pinout. | Supports 3-channel analog acquisition (e.g., voltage + current + neutral current) for enhanced metering diagnostics. | Select when third ADC channel is required for neutral current monitoring or auxiliary sensor input. |
| MSP430I2021TRHBR | Same dual-SD24 architecture but with 32 KB Flash and 2 KB RAM; identical RHB package and pinout. | Enables larger firmware for advanced tariff management, secure boot, or local data logging without external memory. | Select when extended code space is needed for DLMS/COSEM protocol stack or encrypted firmware updates. |
Compared with MSP430I2020TRHBR, the MSP430I2030TRHBR adds a third SD24 channel for diagnostic redundancy or neutral monitoring, while the MSP430I2021TRHBR doubles Flash/RAM for complex metering firmware - both retain identical pin compatibility, power profiles, and analog performance.
Availability
MSP430I2020TRHBR is available at Aetrix Electronics and suitable for single-phase energy metering, smart plug power monitoring, and industrial sensor node applications requiring stable component supply, long-term lifecycle support, and TI-qualified metrology-grade silicon.
Supply support for MSP430I2020TRHBR 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 MSP430I2020TRHBR belongs to TI's Metrology and Monitoring MCU portfolio - engineered specifically for high-accuracy, ultra-low-power energy measurement in cost-sensitive, battery-operated, or safety-certified metering systems.
FAQ
What is the maximum sampling rate supported by the SD24 ADCs in MSP430I2020TRHBR?
The MSP430I2020TRHBR SD24 ADCs support up to 256 kSPS aggregate throughput across both channels using oversampling and decimation. Each 24-bit converter achieves effective sample rates from 125 SPS (with 256× oversampling for ultra-low-noise metrology) to 4 kSPS (for fast transient capture), configurable via SD24OSRx and SD24DIVx registers - enabling flexible trade-offs between resolution, speed, and power in MSP430I2020TRHBR-based designs.
Does MSP430I2020TRHBR support hardware-based encryption for secure firmware updates?
No, the MSP430I2020TRHBR does not include dedicated cryptographic accelerators or hardware AES engines. It relies on software-based implementations for basic checksum verification or lightweight ciphering. For secure boot or TLS offload, external secure elements (e.g., TI TISCI-compliant companion ICs) or migration to MSP430FRxx FRAM MCUs with integrated AES modules is recommended - MSP430I2020TRHBR prioritizes analog precision and ultra-low power over security acceleration.
Can MSP430I2020TRHBR operate without an external crystal?
Yes, the MSP430I2020TRHBR operates fully from its internal 16.384-MHz digitally controlled oscillator (DCO), which is factory-trimmed and supports ±2% accuracy over voltage/temperature. External crystal is optional and only required if tighter timing stability (e.g., <±50 ppm for IRDA carrier generation or precise time-of-use billing) is mandated - ROSC pin allows resistor-tuned DCO calibration for improved drift compensation in MSP430I2020TRHBR deployments.
What is the function of the VCORE pin on MSP430I2020TRHBR?
The VCORE pin on MSP430I2020TRHBR is the output of the integrated low-dropout regulator that supplies the 1.8-V core voltage to the CPU, RAM, and digital logic. It is for internal use only - no external loading is permitted. A 2.2-µF ceramic capacitor must be placed between VCORE and DVSS per TI design guidelines to ensure stable core regulation and minimize switching noise coupling into analog sections of MSP430I2020TRHBR.
How many GPIOs are available on MSP430I2020TRHBR in the RHB package?
The MSP430I2020TRHBR in the 32-pin VQFN (RHB) package provides 16 general-purpose I/O pins (P1.0–P1.7 and P2.0–P2.7), all supporting interrupt capability and peripheral multiplexing. Pins P2.4–P2.7 are exclusive to the RHB package and unavailable in the 28-pin TSSOP variant - these support additional Timer_A capture/compare functions and extend flexibility for custom timing or PWM-driven auxiliary circuits in MSP430I2020TRHBR-based systems.
MSP430I2020TRHBR 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 2x24b Sigma-Delta
- Oscillator Type:
- External
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430I2020TRHBR FAQ
1.How can I place an order for MSP430I2020TRHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430I2020TRHBR 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 MSP430I2020TRHBR reliable?
The price and inventory of MSP430I2020TRHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430I2020TRHBR is usually 5 days.
3.What payment methods are accepted for MSP430I2020TRHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430I2020TRHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430I2020TRHBR?
MSP430I2020TRHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430I2020TRHBR 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 MSP430I2020TRHBR?
For technical support, including MSP430I2020TRHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430I2020TRHBR requirements.
6.How does Aetrix verify that MSP430I2020TRHBR is sourced from the original manufacturer or authorized distributors?
All MSP430I2020TRHBR 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 MSP430I2020TRHBR meets industry standards.
7.What is the process for return or replacement of MSP430I2020TRHBR?
All MSP430I2020TRHBR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430I2020TRHBR, 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 MSP430I2020TRHBR part is unused and in its original packaging.
Return procedure for MSP430I2020TRHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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