My Inquiry
My Account
Texas Instruments MSP430I2020TRHBT
- Part No.:
- MSP430I2020TRHBT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430I2020TRHBT.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:345
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430I2020TRHBT 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 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 achieves 70 µA shutdown current (LPM4) and 75 nA LPM4.5 mode - enabling multi-year operation in smart plugs and submeters.
For engineers reviewing the MSP430I2020TRHBT datasheet, MSP430I2020TRHBT pinout, MSP430I2020TRHBT application, or MSP430I2020TRHBT equivalent, key selection criteria include its dual SD24 ADC architecture, RHB 32-pin VQFN package with analog input pin mapping (A0.0±, A1.0±), integrated LDO core regulator, and eUSCI_A0/eUSCI_B0 serial interfaces supporting UART, IrDA, SPI, and I²C.
Technical Context
The MSP430I2020TRHBT implements a 16-bit RISC CPU with constant generators and hardware multiplier for efficient signal processing in metrology-grade applications. Its analog subsystem centers on two independent 24-bit sigma-delta ADCs (SD24), each configurable with programmable gain amplifiers and differential inputs - supporting high-accuracy current/voltage sensing without external signal conditioning.
Digital peripherals include two 16-bit Timer_A modules (each with three capture/compare registers), eUSCI_A0 supporting enhanced UART with auto-baud detection and IrDA, and eUSCI_B0 supporting synchronous SPI and I²C. Power management features an integrated LDO delivering 1.8-V core voltage, supply voltage monitor, brownout detector, and temperature sensor - all coordinated across five low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and hardware multiplier - enables efficient fixed-point DSP for energy measurement algorithms |
| ADC Resolution & Count | Two independent 24-bit sigma-delta ADCs with differential PGA inputs - supports simultaneous voltage/current sampling with >100 dB SNR |
| Supply Voltage Range | 2.2 V to 3.6 V - compatible with single Li-ion, 3×AA, or regulated industrial rails without external level-shifting |
| Low-Power Modes | LPM4.5 shutdown at 75 nA (3.0 V) - extends battery life in always-on metering nodes beyond 10 years |
| System Clock | 16.384-MHz internal digitally controlled oscillator (DCO) - provides precise timing for metrology sampling without external crystal |
| Package | 32-pin VQFN (RHB), 5 mm × 5 mm - exposes dedicated analog input pins (A0.0±, A1.0±) and thermal pad tied to DVSS for noise-sensitive layouts |
| Memory | 16 KB flash / 1 KB RAM - sufficient for certified energy measurement firmware (e.g., IEC 62053-21) with calibration storage |
Pinout & Package
Package: 32-pin VQFN (RHB), 5 mm × 5 mm, with exposed thermal pad recommended to be connected to DVSS for analog noise reduction.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| A0.0+/A0.0- | SD24 Analog Input Pair | Dedicated differential input channel for first sigma-delta ADC - accepts ±2.5 V full-scale with PGA gain up to 32 |
| A1.0+/A1.0- | SD24 Analog Input Pair | Dedicated differential input channel for second sigma-delta ADC - enables concurrent voltage and current sensing |
| VREF | External Reference Input | Accepts external precision reference (e.g., REF3025) when SD24REFS = 0; must be decoupled with CVREF capacitor if internal reference used |
| RST/NMI/SBWTDIO | Reset & Debug Interface | Multi-function pin supporting reset assertion, non-maskable interrupt, and Spy-Bi-Wire programming/debug - no external pull-up required |
| eUSCI_A0 Pins (P1.2/P1.3) | UART/IrDA/SPI Interface | Supports automatic baud-rate detection for RS-485/PLC communication and IrDA physical layer for optical data transfer |
| eUSCI_B0 Pins (P1.6/P1.7) | I²C/SPI Interface | Enables connection to external EEPROM, RTC, or isolated ADCs using standard I²C protocol or 4-wire SPI |
| P2.3/VMONIN | Voltage Monitor Input | Analog input for supply rail monitoring - triggers interrupt on undervoltage condition, supporting fail-safe shutdown in power meters |
Key Features
| Feature | Design Value |
|---|---|
| Dual 24-bit SD24 ADCs with PGA | Enables simultaneous high-resolution current and voltage measurement with <10 ppm linearity error - critical for Class 0.2 metering compliance |
| Integrated 1.8-V LDO Core Regulator | Stabilizes internal logic supply independently of VCC fluctuations - maintains ADC accuracy across wide input voltage range (2.2–3.6 V) |
| eUSCI_A0 with Auto-Baud Detection | Eliminates need for external clock source in PLC/AMR systems - synchronizes to incoming carrier signal without host MCU intervention |
| 75 nA LPM4.5 Shutdown Current | Reduces annual battery drain to <0.7 mAh - supports 10+ year operation on CR2032 in smart plug applications |
| 1 µs Wake-up from LPM3 | Allows rapid response to event-triggered sampling (e.g., zero-crossing detection) while maintaining ultra-low average power |
Applications
| Metering | Smart Plug Monitoring |
|---|---|
|
Use Scenario: Residential electricity submetering with tamper detection and tariff switching. IC Role / Device Role / Timing Role: Primary metrology controller performing real-time RMS, active/reactive power calculation, and pulse output generation. Use Value: Dual SD24 ADCs enable simultaneous voltage and current sampling at 1 kSPS with <0.1% total harmonic distortion - meeting IEC 62053-22 Class B requirements. |
Use Scenario: Energy-aware consumer outlet with load identification and overcurrent protection. IC Role / Device Role / Timing Role: Standalone power monitoring node interfacing shunt resistor and isolation amplifier, reporting via UART to host MCU. Use Value: Integrated LDO and 75 nA LPM4.5 allow continuous background sampling without compromising battery life in portable test units. |
| Industrial Sensor Node | Medical Patient Monitor |
|
Use Scenario: Battery-powered DIN-rail mounted power quality analyzer for HVAC control panels. IC Role / Device Role / Timing Role: Signal acquisition engine capturing voltage, current, and temperature with timestamped waveform storage. Use Value: 16.384-MHz DCO provides stable sampling clock for 16-sample-per-cycle analysis at 50/60 Hz - eliminating crystal cost and board space. |
Use Scenario: Portable multi-parameter vital sign monitor measuring ECG, respiration, and SpO₂. IC Role / Device Role / Timing Role: Analog front-end controller digitizing biopotential signals with programmable gain and notch filtering. Use Value: Differential PGA inputs reject common-mode interference from 50/60 Hz mains - achieving >100 dB CMRR without external instrumentation amps. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar metrology microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430I2021TRHBT | 32 KB flash / 2 KB RAM vs. 16 KB / 1 KB; identical ADC count, package, and peripherals | Required for firmware requiring >16 KB code space or extended calibration tables | Select when future firmware expansion or advanced harmonic analysis algorithms demand additional memory headroom |
| MSP430I2030TRHBT | Three 24-bit SD24 ADCs vs. two; same package, voltage range, and low-power specs | Suitable for 3-phase metering or multi-channel sensor fusion where third ADC channel is mandatory | Choose only if third differential ADC input is needed - adds no benefit for single-phase or dual-sensor use cases |
Compared with MSP430I2021TRHBT and MSP430I2030TRHBT, the MSP430I2020TRHBT offers optimal balance of metrology performance, memory sufficiency for certified firmware, and cost efficiency - making it the preferred choice for single-phase smart plugs, submeters, and compact industrial sensors where dual-ADC capability meets functional requirements without over-provisioning.
Availability
MSP430I2020TRHBT is available at Aetrix Electronics and suitable for smart plug monitoring, residential submetering, and industrial sensor node designs requiring stable component supply, long-term lifecycle support, and traceable sourcing for production programs.
Supply support for MSP430I2020TRHBT 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 decades of expertise in ultra-low-power design.
The MSP430I2020TRHBT belongs to TI's Metrology and Monitoring portfolio - engineered specifically for high-accuracy, battery-operated energy measurement applications including smart meters, power strips, and portable medical sensors.
FAQ
What is the maximum sampling rate supported by the SD24 ADCs in MSP430I2020TRHBT?
The MSP430I2020TRHBT's two 24-bit sigma-delta ADCs support up to 1 kSPS per channel with oversampling ratios up to 256. At 256× oversampling, effective resolution reaches 24 bits with typical SNR >100 dB - sufficient for Class 0.2 electricity metering per IEC 62053-22. The ADCs operate independently, allowing synchronized dual-channel acquisition for voltage and current waveforms.
Does MSP430I2020TRHBT require an external crystal for accurate timekeeping?
No. The MSP430I2020TRHBT integrates a 16.384-MHz digitally controlled oscillator (DCO) with internal or external resistor tuning. This DCO provides stable, factory-trimmed timing for metrology sampling and UART communication - eliminating the need for external crystals or resonators while maintaining <±1% frequency accuracy across temperature and voltage ranges.
How is analog ground separation handled on the MSP430I2020TRHBT RHB package?
The MSP430I2020TRHBT uses separate AVSS (pin 10) and DVSS (pin 12) ground terminals, plus a dedicated thermal pad recommended for connection to DVSS. Analog inputs (A0.0±, A1.0±) reference AVSS, while digital I/O and core logic reference DVSS - enabling PCB-level separation of analog and digital return paths to minimize noise coupling into SD24 conversion results.
Can MSP430I2020TRHBT interface directly with isolated current sensors?
Yes. The MSP430I2020TRHBT's differential SD24 inputs accept ±2.5 V full-scale signals with programmable gain (1–32), matching common isolated amplifier outputs (e.g., AMC1301). Its VREF pin supports external 2.5-V references for ratiometric accuracy, and the integrated LDO ensures stable core voltage during transient load conditions - preserving ADC linearity when interfacing with galvanically isolated signal chains.
What debug interface does MSP430I2020TRHBT support, and what pins are required?
The MSP430I2020TRHBT supports Spy-Bi-Wire (SBW) debugging using two pins: RST/NMI/SBWTDIO (pin 15) and TEST/SBWTCK (pin 16). No external debug probe voltage is needed - SBW operates at the device's VCC level. This 2-wire interface enables full flash programming, breakpoint debugging, and real-time register inspection through TI's MSP-FET or compatible tools.
MSP430I2020TRHBT 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:
MSP430I2020TRHBT FAQ
1.How can I place an order for MSP430I2020TRHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430I2020TRHBT 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 MSP430I2020TRHBT reliable?
The price and inventory of MSP430I2020TRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430I2020TRHBT is usually 5 days.
3.What payment methods are accepted for MSP430I2020TRHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430I2020TRHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430I2020TRHBT?
MSP430I2020TRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430I2020TRHBT 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 MSP430I2020TRHBT?
For technical support, including MSP430I2020TRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430I2020TRHBT requirements.
6.How does Aetrix verify that MSP430I2020TRHBT is sourced from the original manufacturer or authorized distributors?
All MSP430I2020TRHBT 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 MSP430I2020TRHBT meets industry standards.
7.What is the process for return or replacement of MSP430I2020TRHBT?
All MSP430I2020TRHBT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430I2020TRHBT, 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 MSP430I2020TRHBT part is unused and in its original packaging.
Return procedure for MSP430I2020TRHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430I2020TRHBT Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
