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Texas Instruments MSP430F2122IRTVT
- Part No.:
- MSP430F2122IRTVT
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 32-WFQFN Exposed Pad
- Datasheet:
-
MSP430F2122IRTVT.pdf
- Description:
- IC MCU 16BIT 4KB FLASH 32WQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430F2122IRTVT 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-µA standby operation.
For engineers reviewing the MSP430F2122IRTVT datasheet, MSP430F2122IRTVT pinout, MSP430F2122IRTVT application, or MSP430F2122IRTVT equivalent, key selection criteria include its 0.7 µA standby current, 250 µA active current at 1 MHz/2.2 V, integrated DCO with ±1% calibration, 32-pin QFN (RTV) package, and LIN-capable UART for automotive body electronics.
Technical Context
The MSP430F2122IRTVT implements a 16-bit RISC CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module integrates a digitally controlled oscillator (DCO), low-frequency internal oscillator, and crystal support up to 16 MHz - enabling wake-up from LPM4 in under 1 µs via the DCO.
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. The ADC10 includes sample-and-hold, autoscan, and a dedicated data transfer controller (DTC) for autonomous conversion sequencing without CPU intervention.
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 | 4KB + 256B flash (main + info memory); 512B RAM - sufficient for firmware with real-time sensor processing and communication stacks. |
| ADC Performance | 10-bit SAR ADC at 200 ksps with internal reference, sample-and-hold, autoscan, and DTC - enables continuous multi-channel acquisition without CPU overhead. |
| 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 long sleep intervals. |
| Communication | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C); LIN-compliant UART supports automotive network integration without external transceivers. |
| Timers | Timer0_A3 (3 capture/compare registers) + Timer1_A2 (2 capture/compare registers) - supports PWM generation, input capture, and interval timing for motor control or signal measurement. |
| Operating Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, Li-polymer, or dual-AA alkaline power sources. |
Pinout & Package
Package: 32-pin QFN (RTV), 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 Data I/O | Single-pin debug interface for programming and emulation; resets device on low pulse; accepts NMI events. |
| TEST/SBWTCK (Pin 29) | Spy-Bi-Wire Test Clock | Enables JTAG-like debugging and flash programming using two-wire interface - reduces PCB footprint vs. full JTAG. |
| P1.0/TACLK/ADC10CLK/CAOUT (Pin 21) | Timer/ADC/Clock/Comparator Output | Configurable as timer clock source, ADC conversion trigger, or comparator output - enables synchronized analog-digital timing. |
| XIN/P2.6/CA6 (Pin 3) | Crytal Oscillator Input / Comparator Input | Accepts 32.768 kHz watch crystal or HF crystal up to 16 MHz; also serves as analog comparator input channel. |
| UCA0TXD/UCA0SIMO (Pin 13) | USCI_A0 Transmit / SPI Master Out | Primary serial output for UART transmission or SPI slave-out - supports bidirectional protocol selection in software. |
| UCB0SOMI/UCB0SCL (Pin 11) | USCI_B0 SPI Slave In / I²C Clock | Dual-function pin: receives SPI data or generates I²C clock - allows shared physical layer between protocols. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low-Power Operation | 0.1 µA off-mode (RAM retention) and 0.7 µA standby enable multi-year battery life in wireless sensor endpoints. |
| Integrated DCO Calibration | Four factory-trimmed DCO frequencies (1/8/12/16 MHz) accurate to ±1% at 3 V and 30°C - eliminates need for external crystal in cost-sensitive designs. |
| LIN-Capable UART | USCI_A0 supports automatic baudrate detection per LIN 2.0 - enables direct connection to automotive body control modules without external LIN transceiver. |
| Autonomous ADC with DTC | Data Transfer Controller handles ADC result storage to RAM without CPU involvement - frees CPU for computation during acquisition bursts. |
| Comparator_A+ Slope A/D | Supports precision slope-based analog-to-digital conversion for battery voltage monitoring or threshold detection with <1 µs response. |
Applications
| Smart Sensor Node | Portable Medical Device |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity node transmitting data via UART to gateway every 5 minutes. IC Role / Device Role / Timing Role: Main system controller managing sensor readout, ADC sampling, LIN/UART transmission, and ultra-low-power sleep scheduling. Use Value: 0.7 µA standby current extends CR2032 battery life beyond 3 years; integrated DCO avoids crystal BOM cost and layout area. |
Use Scenario: Handheld blood glucose meter performing analog front-end signal conditioning and display update on button press. IC Role / Device Role / Timing Role: Signal acquisition controller running ADC10 with internal reference, comparator for test-strip detection, and LCD segment driver interface. Use Value: 10-bit ADC with DTC captures 16-sample averages autonomously; comparator_A+ detects strip insertion within 500 ns - improves user responsiveness. |
| Automotive Body Control | Industrial Data Logger |
|
Use Scenario: Door module monitoring switch inputs and controlling LED status indicators over LIN bus. IC Role / Device Role / Timing Role: LIN node controller executing ISO 17987-compliant UART framing, wake-up detection, and GPIO management. Use Value: USCI_A0's LIN auto-baudrate detection synchronizes to master node without configuration; 24 GPIO pins support 8 switches + 8 LEDs + diagnostics. |
Use Scenario: Ruggedized environmental logger recording temperature, pressure, and humidity every 10 seconds to flash memory. IC Role / Device Role / Timing Role: Embedded data acquisition engine using Timer1_A2 for precise 10-s intervals, ADC10 for sensor reads, and flash write routines. Use Value: 4KB flash stores >10,000 timestamped samples; brownout detector prevents corruption during battery voltage sag during flash writes. |
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 |
|---|---|---|---|
| MSP430F2132IRTVT | 8KB+256B flash, same peripherals and package - double program memory capacity. | Required when firmware exceeds 4KB or needs larger bootloader/OTA update partition. | Select MSP430F2132IRTVT if future firmware growth or field-upgrade capability is required; pin-compatible drop-in replacement. |
| MSP430G2553IPW28 | 28-pin TSSOP, 16KB flash, 512B RAM, but no integrated LIN UART or calibrated DCO - requires external crystal for precise timing. | Suitable for non-automotive applications where higher flash density offsets lack of LIN and tighter timing tolerance. | Choose MSP430G2553IPW28 for cost-optimized general-purpose designs without LIN or crystal-free operation requirements. |
Compared with MSP430F2122IRTVT, the MSP430F2132IRTVT offers scalable code space while maintaining identical power profile and peripheral set, whereas the MSP430G2553IPW28 trades LIN capability and DCO accuracy for higher flash density and lower package cost - making it better suited for non-automotive, crystal-supported applications.
Availability
MSP430F2122IRTVT is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical devices, and automotive body electronics requiring stable component supply across extended production lifecycles.
Supply support for MSP430F2122IRTVT 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 MCUs for battery-constrained applications such as portable instrumentation, wireless sensing, and automotive sub-systems - emphasizing energy efficiency without sacrificing peripheral richness.
FAQ
What is the maximum operating frequency of the MSP430F2122IRTVT?
The MSP430F2122IRTVT supports a maximum system clock (MCLK) frequency of 16 MHz, achievable using the internal digitally controlled oscillator (DCO) with factory calibration or an external HF crystal. Its 16-bit RISC core executes instructions at 62.5-ns intervals at this rate, and the DCO maintains ±1% accuracy across voltage and temperature when calibrated at 3 V and 30°C - enabling reliable high-speed operation without external timing components.
Does the MSP430F2122IRTVT support LIN communication natively?
Yes, the MSP430F2122IRTVT supports LIN communication natively through its USCI_A0 module, which implements enhanced UART with automatic baudrate detection compliant with LIN 2.0 specifications. This allows the MSP430F2122IRTVT to function as a LIN slave node without requiring an external LIN transceiver - reducing bill-of-materials cost and board space in automotive body electronics applications.
How much RAM and flash memory does the MSP430F2122IRTVT have?
The MSP430F2122IRTVT integrates 512 bytes of RAM and 4KB of main flash memory plus 256 bytes of information flash memory. The RAM provides sufficient space for stack, variables, and buffers in real-time embedded applications, while the 4KB flash accommodates compact firmware with sensor drivers, communication stacks, and control logic - validated by TI's SLAS578J datasheet revision January 2012.
What package type is used for the MSP430F2122IRTVT?
The MSP430F2122IRTVT uses a 32-pin QFN package with RTV designation: 5 mm × 5 mm body, 0.5 mm lead pitch, and an exposed thermal pad. This package is optimized for space-constrained PCB layouts and provides robust thermal performance. Pin compatibility is maintained across the MSP430F21x2 family in RTV packaging, allowing design reuse between F2112, F2122, and F2132 variants.
Can the MSP430F2122IRTVT operate from a single 1.8-V supply?
Yes, the MSP430F2122IRTVT operates across a supply voltage range of 1.8 V to 3.6 V, fully specified down to 1.8 V. At 1.8 V, it maintains full functionality including flash programming, ADC operation, and USCI communication - enabling direct use with single-cell lithium batteries or energy-harvesting sources. Its ultra-low-power architecture ensures 0.7 µA standby current even at minimum VCC.
MSP430F2122IRTVT Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 32-WFQFN Exposed Pad
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2122IRTVT FAQ
1.How can I place an order for MSP430F2122IRTVT through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2122IRTVT 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 MSP430F2122IRTVT reliable?
The price and inventory of MSP430F2122IRTVT are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2122IRTVT is usually 5 days.
3.What payment methods are accepted for MSP430F2122IRTVT?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2122IRTVT transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2122IRTVT?
MSP430F2122IRTVT orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2122IRTVT 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 MSP430F2122IRTVT?
For technical support, including MSP430F2122IRTVT datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2122IRTVT requirements.
6.How does Aetrix verify that MSP430F2122IRTVT is sourced from the original manufacturer or authorized distributors?
All MSP430F2122IRTVT 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 MSP430F2122IRTVT meets industry standards.
7.What is the process for return or replacement of MSP430F2122IRTVT?
All MSP430F2122IRTVT units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2122IRTVT, 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 MSP430F2122IRTVT part is unused and in its original packaging.
Return procedure for MSP430F2122IRTVT:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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