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Texas Instruments MSP430F2112TRHBR
- Part No.:
- MSP430F2112TRHBR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2112TRHBR.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:2,318
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Product details
Overview
MSP430F2112TRHBR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 2 KB flash, 256 B RAM, a 10-bit 200-ksps ADC with internal reference and DTC, two 16-bit timers (Timer0_A3 with three capture/compare registers, Timer1_A2 with two), USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C), and up to 24 GPIO pins. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable instrumentation.
For engineers reviewing the MSP430F2112TRHBR datasheet, MSP430F2112TRHBR pinout, MSP430F2112TRHBR application, or MSP430F2112TRHBR equivalent, key selection criteria include its -40°C to 105°C extended temperature grade, 32-pin QFN (RHB) package with thermal pad, integrated comparator for slope A/D, and calibrated DCO enabling sub-1 µs wake-up from LPM4.
Technical Context
The MSP430F2112TRHBR implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (±1%), 32-kHz crystal support, and external HF crystal/resonator options up to 16 MHz.
Peripherals are memory-mapped and accessible via all CPU instructions. The USCI modules provide protocol-flexible serial communication: USCI_A0 supports UART with auto-baudrate detection (LIN), IrDA encoding/decoding, and synchronous SPI; USCI_B0 supports SPI and I²C master/slave operation with dedicated SCL/SDA pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; register-to-register operations execute in one cycle. |
| Flash / RAM | 2 KB + 256 B flash memory; 256 B RAM - sufficient for compact firmware with ADC data buffering and real-time control loops. |
| ADC Performance | 10-bit SAR ADC at 200 ksps with internal reference, sample-and-hold, autoscan, and DTC - enables unattended multi-channel analog acquisition without CPU intervention. |
| Power Modes | Active mode: 250 µA @ 1 MHz, 2.2 V; Standby: 0.7 µA; Off (RAM retention): 0.1 µA - optimized for intermittent sensing with rapid wake-up. |
| Timers | Timer0_A3: 16-bit, 3 capture/compare registers; Timer1_A2: 16-bit, 2 capture/compare registers - supports PWM generation, input capture, and interval timing concurrently. |
| Operating Temperature | -40°C to +105°C - qualified for industrial and automotive under-hood environments requiring extended thermal stability. |
| Package | 32-pin QFN (RHB), 5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad - enables compact PCB layout with efficient heat dissipation. |
Pinout & Package
Package: 32-pin QFN (RHB), 5 mm × 5 mm body, 0.5 mm pitch, thermally enhanced with exposed pad (connected to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK/CAOUT | Timer/ADC/Comparator output | Provides timer clock input, ADC conversion clock source, and comparator output - enables synchronized analog-digital event triggering. |
| P1.1/TA0.0/TA1.0 | Timer capture/compare | Shared capture input for Timer0_A3 and Timer1_A2 - supports dual-timer synchronization on same edge-triggered signal. |
| P2.0/ACLK/A0/CA2 | Low-frequency clock/analog input | Routes 32-kHz ACLK to peripherals while serving as ADC channel A0 and comparator input - consolidates timing and sensing functions. |
| P2.6/XIN/CA6 & P2.7/XOUT/CA7 | Crystal oscillator interface | Dedicated crystal terminals supporting 32.768 kHz watch crystal - ensures precise real-time clock and low-jitter system timing. |
| P3.4/UCA0TXD/UCA0SIMO & P3.5/UCA0RXD/UCA0SOMI | USCI_A0 UART/SPI I/O | Full-duplex UART transmit/receive or SPI master-out/slave-in - enables direct connection to sensors, transceivers, or host controllers without level-shifting. |
| RST/NMI/SBWTDIO | Reset/test I/O | Combines power-on reset, non-maskable interrupt, and Spy-Bi-Wire debug I/O - reduces pin count while retaining full programming and fault recovery capability. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA in LPM4 (RAM retention) and sub-1 µs wake-up - extends battery life in energy-constrained IoT endpoints by minimizing active time. |
| Integrated analog subsystem | 10-bit ADC with DTC, comparator_A+, internal reference, and 8-channel analog input - eliminates need for external ADC or voltage supervisor in simple monitoring applications. |
| Calibrated DCO | Four factory-trimmed frequencies (1/8/12/16 MHz) accurate to ±1% - removes external crystal requirement for cost-sensitive designs while maintaining timing predictability. |
| Universal Serial Communication | USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C) with independent clock sources - supports mixed-protocol connectivity (e.g., LIN bus + I²C sensor hub) from single MCU. |
| On-chip emulation | Embedded Emulation Module (EEM) with Spy-Bi-Wire interface - enables full-speed debugging and flash programming using only two pins (TEST/SBWTCK and RST/NMI/SBWTDIO). |
Applications
| Industrial Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Wireless temperature/humidity node logging data every 30 seconds and transmitting via UART to BLE gateway. IC Role / Device Role / Timing Role: Primary controller executing sensor polling, ADC conversion, data formatting, and UART transmission; uses LPM3 between samples with ACLK-driven RTC wake-up. Use Value: 0.7 µA standby current and 256 B RAM enable >2-year coin-cell operation; integrated ADC and UART reduce BOM count by two ICs. | Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving LED drivers with precise timing. IC Role / Device Role / Timing Role: Analog front-end controller performing synchronized LED pulsing (via Timer0_A3 PWM), photodiode signal sampling (ADC10 with autoscan), and comparator-based saturation detection. Use Value: Slope A/D capability via Comparator_A+ enables fast battery-voltage supervision; 200-ksps ADC captures transient physiological waveforms without external oversampling. |
| Smart Utility Meter Interface | Automotive Body Control Module |
Use Scenario: Sub-metering module interfacing with RS-485 PLC modem and reading analog current sensors. IC Role / Device Role / Timing Role: Protocol bridge converting Modbus RTU over RS-485 (via USCI_A0 UART) to local I²C sensor reads (via USCI_B0); uses brownout detector for grid voltage dips. Use Value: Brownout detector ensures reliable reset during AC line sags; 105°C rating allows placement near power electronics without derating. | Use Scenario: Door module monitoring window switch inputs, controlling mirror motors, and communicating via LIN bus to central ECU. IC Role / Device Role / Timing Role: LIN slave node implementing ISO 17987-compliant physical layer using USCI_A0's auto-baudrate detection; handles switch debouncing and motor PWM via Timer0_A3. Use Value: Auto-baudrate detection simplifies production calibration; integrated comparator validates supply rail integrity before motor activation. |
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 |
|---|---|---|---|
| MSP430F2122TRHBR | 4 KB flash, 512 B RAM, identical peripherals and pinout - no hardware change required. | Supports larger firmware (e.g., added cryptographic stack or OTA update handler) without layout revision. | Select when future firmware growth or additional sensor fusion algorithms are anticipated. |
| MSP430G2553IRHB | Same 32-pin QFN package but newer G-series; 16 KB flash, 512 B RAM, enhanced USCI, no factory DCO calibration. | Requires software DCO tuning; lacks LIN auto-baudrate but adds hardware multiplier and enhanced comparator features. | Choose for higher code capacity and modern toolchain support where LIN is not mandatory. |
Compared with MSP430F2112TRHBR, the MSP430F2122TRHBR offers double flash/RAM with zero PCB impact, while the MSP430G2553IRHB trades factory DCO accuracy and LIN support for greater memory and computational headroom - making the F2112 optimal for cost-sensitive, thermally demanding, LIN-dependent deployments.
Availability
MSP430F2112TRHBR is available at Aetrix Electronics and suitable for industrial sensor nodes, portable medical monitors, smart utility meter interfaces, and automotive body control modules requiring stable component supply across extended temperature ranges.
Supply support for MSP430F2112TRHBR 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 microcontroller innovation.
The MSP430F21x2 product line delivers ultra-low-power mixed-signal control for battery-operated and energy-harvesting systems where nanowatt operation, fast wake-up, and integrated analog peripherals are critical design requirements.
FAQ
What is the maximum operating frequency of the MSP430F2112TRHBR?
The MSP430F2112TRHBR supports a maximum system clock (MCLK) of 16 MHz, achievable using the internal digitally controlled oscillator (DCO) with factory calibration or an external HF crystal/resonator. Its 16-bit RISC core executes instructions at 62.5-ns intervals at this frequency, enabling real-time response in time-critical control loops without compromising ultra-low-power operation.
Does the MSP430F2112TRHBR support LIN bus communication?
Yes, the MSP430F2112TRHBR supports LIN bus communication through USCI_A0's enhanced UART mode with automatic baudrate detection (LIN). This feature allows the device to synchronize to incoming LIN header frames without prior knowledge of bus speed, making it suitable as a slave node in automotive body electronics and industrial control networks compliant with ISO 17987.
How many analog input channels does the ADC10 module support on the MSP430F2112TRHBR?
The ADC10 module on the MSP430F2112TRHBR supports eight analog input channels (A0–A7), mapped to P1.0, P2.0–P2.4, P3.0, P3.6, and P3.7. These channels can be scanned automatically in sequence using the Data Transfer Controller (DTC), allowing continuous multi-sensor acquisition - such as temperature, voltage, and current - without CPU overhead.
What debug interface does the MSP430F2112TRHBR use, and how many pins are required?
The MSP430F2112TRHBR uses the Spy-Bi-Wire (SBW) debug interface, requiring only two pins: TEST/SBWTCK (pin 29) and RST/NMI/SBWTDIO (pin 7). This two-wire JTAG variant enables full-speed in-circuit debugging, flash programming, and real-time trace via tools like MSP-FET430UIF, significantly reducing debug footprint versus standard 4-pin JTAG.
Is the MSP430F2112TRHBR pin-compatible with other members of the MSP430F21x2 family?
Yes, the MSP430F2112TRHBR is pin-compatible with the MSP430F2122TRHBR and MSP430F2132TRHBR in the 32-pin QFN (RHB) package. All share identical pin functions, electrical characteristics, and peripheral mappings - enabling seamless migration to higher-memory variants without PCB redesign or firmware changes beyond flash/RAM allocation.
MSP430F2112TRHBR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-VFQFN Exposed Pad
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 2KB (2K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2112TRHBR FAQ
1.How can I place an order for MSP430F2112TRHBR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2112TRHBR 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 MSP430F2112TRHBR reliable?
The price and inventory of MSP430F2112TRHBR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2112TRHBR is usually 5 days.
3.What payment methods are accepted for MSP430F2112TRHBR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2112TRHBR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2112TRHBR?
MSP430F2112TRHBR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2112TRHBR 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 MSP430F2112TRHBR?
For technical support, including MSP430F2112TRHBR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2112TRHBR requirements.
6.How does Aetrix verify that MSP430F2112TRHBR is sourced from the original manufacturer or authorized distributors?
All MSP430F2112TRHBR 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 MSP430F2112TRHBR meets industry standards.
7.What is the process for return or replacement of MSP430F2112TRHBR?
All MSP430F2112TRHBR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2112TRHBR, 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 MSP430F2112TRHBR part is unused and in its original packaging.
Return procedure for MSP430F2112TRHBR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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