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Texas Instruments MSP430F2122TRHBT
- Part No.:
- MSP430F2122TRHBT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2122TRHBT.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 32VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:250
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Product details
Overview
MSP430F2122TRHBT from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 4KB+256B flash, 512B 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 comparator_A+. It targets battery-powered sensor nodes and portable instrumentation requiring sub-1µs wake-up and <0.1µA off-mode retention.
For engineers reviewing the MSP430F2122TRHBT datasheet, MSP430F2122TRHBT pinout, MSP430F2122TRHBT application, or MSP430F2122TRHBT equivalent, key selection criteria include its 32-pin QFN (RHB) package, -40°C to 105°C industrial temperature grade, calibrated DCO enabling 1–16 MHz operation without external crystal, and integrated analog peripherals eliminating need for discrete signal conditioning in compact designs.
Technical Context
The MSP430F2122TRHBT implements a 16-bit RISC CPU with seven addressing modes and 16 general-purpose registers, achieving 62.5-ns instruction cycle time at 16 MHz. Its clock system integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (±1%), low-frequency VLO, and support for 32-kHz crystal or HF crystal up to 16 MHz.
Peripherals are memory-mapped and accessible via all CPU instructions. The USCI modules provide hardware-accelerated UART with auto-baudrate detection (LIN-compliant), IrDA encoding/decoding, synchronous SPI, and I2C master/slave - all configurable without CPU intervention during active or low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers; 62.5-ns instruction cycle enables deterministic real-time control at up to 16 MHz. |
| Memory | 4KB + 256B flash (in-system programmable), 512B RAM; supports bootstrapping via UART without external programming voltage. |
| ADC | 10-bit SAR ADC with 200-ksps sampling, internal 1.5V/2.5V reference, sample-and-hold, autoscan, and data transfer controller (DTC) for autonomous conversion sequencing. |
| Power Modes | Active mode: 250 µA @ 1 MHz / 2.2 V; Standby: 0.7 µA; Off mode (RAM retention): 0.1 µA; wake-up <1 µs from standby. |
| Timers | Timer0_A3: 16-bit, 3 capture/compare registers; Timer1_A2: 16-bit, 2 capture/compare registers; both support PWM, interval timing, and interrupt generation. |
| Communication | USCI_A0: UART/LIN/IrDA/SPI; USCI_B0: SPI/I2C; dual interfaces enable simultaneous serial sensor aggregation and host communication. |
| Supply Range | 1.8 V to 3.6 V; brownout detector ensures reliable reset during voltage sag in battery-operated systems. |
Pinout & Package
Package: 32-pin QFN (RHB), 5 mm × 5 mm, 0.5 mm pitch, exposed thermal pad (connected to DVSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| RST/NMI/SBWTDIO (Pin 5) | Reset / Nonmaskable Interrupt / Spy-Bi-Wire I/O | Single-pin debug interface for programming and emulation; resets device on falling edge; accepts NMI events. |
| P1.0/TACLK/ADC10CLK/CAOUT (Pin 21) | Timer/ADC/Clock/Comparator Output | Configurable as timer clock input, ADC conversion clock source, or comparator output - enables synchronized analog-digital timing. |
| P2.6/XIN/CA6 (Pin 3) | Clock Input / Crystal Oscillator Terminal | Connects to low-frequency (32 kHz) or high-frequency (up to 16 MHz) crystal; internal load caps reduce BOM count. |
| P3.4/UCA0TXD/UCA0SIMO (Pin 13) | USCI_A0 Transmit / SPI Master Out | Dual-function pin supports UART transmit or SPI master data out - simplifies PCB routing for mixed-protocol designs. |
| REF+ / REF− (Pins 18, 19) | ADC Reference Inputs | Accept internal 1.5V/2.5V reference or external voltage; REF+ also serves as ADC input A4, enabling ratiometric sensing. |
| DVCC / DVSS (Pins 30, 1) | Digital Power Supply / Ground | Separate digital supply pins allow local decoupling; DVSS connects to QFN thermal pad for thermal management. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 0.1 µA off-mode with full RAM retention enables >10-year battery life in coin-cell-powered IoT endpoints. |
| Calibrated DCO | Four factory-trimmed frequencies (1/8/12/16 MHz ±1%) eliminate need for external crystal in cost-sensitive applications. |
| Autonomous ADC with DTC | Data Transfer Controller moves conversion results to RAM without CPU wake-up, reducing active time by >90% in sensor polling. |
| LIN-Compliant UART | Hardware auto-baudrate detection enables robust communication over noisy automotive or industrial bus lines without host-side timing calibration. |
| Integrated Comparator_A+ | Supports slope ADC for battery voltage monitoring or analog threshold detection - no external op-amp or reference required. |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and CO₂ via analog and digital sensors. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, signal conditioning via ADC/comparator, LIN bus communication, and ultra-low-power sleep scheduling. Use Value: Sub-1µs wake-up and 0.1µA off-mode extend CR2032 battery life beyond 5 years while maintaining 100-ms measurement intervals. |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and driving OLED display. IC Role / Device Role / Timing Role: Signal processor executing analog front-end control, 10-bit ADC sampling at 200 ksps, and SPI-driven display update. Use Value: Integrated 2.5V reference and DTC enable precise ratiometric SpO₂ calculation without external precision references or DMA controller. |
| Industrial Data Logger | Energy Harvesting Node |
|
Use Scenario: DIN-rail mounted logger recording voltage, current, and temperature from industrial equipment using isolated analog inputs. IC Role / Device Role / Timing Role: Low-power host interfacing with isolated ADCs via SPI, storing timestamped data in flash, and transmitting via UART to gateway. Use Value: Dual USCI modules allow concurrent SPI sensor reads and UART telemetry transmission, minimizing active time per logging cycle. |
Use Scenario: Solar- or thermal-harvested node powering from µW-level sources with intermittent energy availability. IC Role / Device Role / Timing Role: Energy-aware controller that wakes only on interrupt, performs minimal processing, and returns to 0.1µA retention mode within microseconds. Use Value: Brownout detector and POR circuit ensure reliable startup from unstable harvested voltage; no external supervisor IC 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 |
|---|---|---|---|
| MSP430F2132TRHBT | 8KB+256B flash, same 512B RAM, identical peripherals and pinout; higher code density for complex firmware. | Required when application logic exceeds 4KB flash; no change to PCB or driver stack. | Select when firmware growth is anticipated or bootloader + application partitioning is needed. |
| MSP430G2553IRHBT | 16KB flash, 512B RAM, enhanced USCI (dual UART), but lacks calibrated DCO and LIN auto-baud; operates down to 1.8V. | Preferred for UART-heavy designs needing larger code space; requires external crystal or RC tuning for precise timing. | Choose for cost-optimized designs where LIN compliance is unnecessary and external timing source is acceptable. |
Compared with MSP430F2122TRHBT, the F2132 offers double flash capacity with identical power/peripheral specs for future-proofing, while the G2553 trades LIN capability and DCO calibration for greater flash and dual UART - making it suitable for non-automotive UART-centric applications with relaxed timing requirements.
Availability
MSP430F2122TRHBT is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial data loggers requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MSP430F2122TRHBT 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 MSP430F21x2 product line was engineered for battery-constrained measurement applications - delivering optimized power efficiency, integrated analog peripherals, and rapid wake-up to maximize operational lifetime in portable and remote systems.
FAQ
What is the operating temperature range for the MSP430F2122TRHBT?
The MSP430F2122TRHBT is rated for industrial operation from -40°C to +105°C, validated across this full range for flash programming, RAM retention, and peripheral functionality including ADC accuracy and timer stability. This makes MSP430F2122TRHBT suitable for under-hood automotive sensors, outdoor metering, and factory-floor controllers where ambient extremes are expected.
Does the MSP430F2122TRHBT support in-system programming without external voltage?
Yes, the MSP430F2122TRHBT supports in-system programming via JTAG or Spy-Bi-Wire using only the standard 1.8–3.6 V supply - no external programming voltage is required. Its bootstrap loader (BSL) also enables UART-based flash updates with password protection, allowing field firmware upgrades without dedicated programmers. This capability is fully implemented in MSP430F2122TRHBT's silicon.
How many I/O pins does the MSP430F2122TRHBT provide, and what are their key capabilities?
The MSP430F2122TRHBT provides 24 individually configurable I/O pins across Ports P1, P2, and P3 - all supporting programmable pullup/pulldown resistors, edge-selectable interrupts (on P1/P2), and peripheral multiplexing. Each pin can serve multiple roles (e.g., P3.4 as UART TX or SPI MOSI), enabling flexible board layout. This I/O count is fixed for the 32-pin RHB package used by MSP430F2122TRHBT.
Can the MSP430F2122TRHBT operate without an external crystal?
Yes, the MSP430F2122TRHBT can operate entirely from its internal digitally controlled oscillator (DCO), which is factory-calibrated at four frequencies (1/8/12/16 MHz) with ±1% accuracy. This eliminates the need for external crystals or resonators in most applications, reducing BOM cost and board area - a core design feature of MSP430F2122TRHBT.
What development tools are officially supported for the MSP430F2122TRHBT?
Texas Instruments officially supports the MSP-FET430UIF (USB JTAG), MSP-FET430PIF (parallel port), and MSP-FET430U28 (PW-package target board) for debugging and programming MSP430F2122TRHBT. Code Composer Studio v6+ and naken430loader provide full toolchain compatibility. These tools leverage the built-in Embedded Emulation Module (EEM) present in every MSP430F2122TRHBT device.
MSP430F2122TRHBT 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:
- 4KB (4K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 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:
MSP430F2122TRHBT FAQ
1.How can I place an order for MSP430F2122TRHBT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2122TRHBT 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 MSP430F2122TRHBT reliable?
The price and inventory of MSP430F2122TRHBT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2122TRHBT is usually 5 days.
3.What payment methods are accepted for MSP430F2122TRHBT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2122TRHBT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2122TRHBT?
MSP430F2122TRHBT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2122TRHBT 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 MSP430F2122TRHBT?
For technical support, including MSP430F2122TRHBT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2122TRHBT requirements.
6.How does Aetrix verify that MSP430F2122TRHBT is sourced from the original manufacturer or authorized distributors?
All MSP430F2122TRHBT 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 MSP430F2122TRHBT meets industry standards.
7.What is the process for return or replacement of MSP430F2122TRHBT?
All MSP430F2122TRHBT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2122TRHBT, 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 MSP430F2122TRHBT part is unused and in its original packaging.
Return procedure for MSP430F2122TRHBT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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