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Texas Instruments MSP430F2101IRGET
- Part No.:
- MSP430F2101IRGET
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430F2101IRGET.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 24VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:500
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Product details
Overview
MSP430F2101IRGET from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 1 KB Flash, 128 B RAM, a 16-bit Timer_A with three capture/compare registers, and an on-chip analog comparator for slope A/D conversion - deployed in battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F2101IRGET datasheet, MSP430F2101IRGET pinout, MSP430F2101IRGET application, or MSP430F2101IRGET equivalent, this page delivers verified functional identity, QFN-24 package mapping, confirmed low-power operating modes (LPM0–LPM4), calibrated DCO frequencies up to 16 MHz, and validated alternative options for embedded sensor firmware development.
Technical Context
The MSP430F2101IRGET implements a 16-bit CPU with constant generators and seven addressing modes, executing register-to-register instructions in one CPU cycle. Its basic clock module integrates a digitally controlled oscillator (DCO), 32-kHz crystal support, and high-frequency crystal input up to 16 MHz - enabling sub-1-μs wake-up from standby mode.
Peripheral integration includes Timer_A3 with three capture/compare registers, Comparator_A+ with eight selectable analog inputs (CA0–CA7), dual 8-bit I/O ports (P1/P2) with individually configurable pullup/pulldown resistors and edge-selectable interrupts, and JTAG-based on-chip emulation for debugging and programming.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generators; enables highly efficient C code execution in ultra-low-power contexts. |
| Memory | 1 KB Flash + 256 B information memory + 128 B RAM; supports in-system programming via JTAG or UART-based BSL with password protection. |
| Operating Voltage | 1.8 V to 3.6 V supply range; allows direct operation from single-cell Li-ion or two-cell alkaline batteries without regulation. |
| Ultra-Low Power | Active mode: 250 μA at 1 MHz / 2.2 V; LPM4 (RAM retention): 0.1 μA; critical for multi-year battery life in wireless sensor endpoints. |
| Clock System | Digital-controlled oscillator (DCO) with factory-calibrated frequencies at 1/8/12/16 MHz ±1%; eliminates need for external crystal in cost-sensitive designs. |
| Comparator | Comparator_A+ with eight analog inputs (CA0–CA7) and CAOUT output; enables precision slope ADC functionality without external components. |
| Timer | 16-bit Timer_A3 with three capture/compare registers; supports PWM generation, input capture, interval timing, and interrupt-driven event sequencing. |
Pinout & Package
Package: 24-pin QFN (RGE), 4 mm × 4 mm, 0.5 mm pitch, exposed thermal pad (to be connected to VSS).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 – NC | No connect | Not internally bonded; must remain unconnected per TI design guidelines. |
| 2 – VCC | Supply voltage | Main power input (1.8–3.6 V); requires local 100 nF ceramic decoupling adjacent to pin. |
| 3 – XOUT/P2.7/CA7 | Crystal output / GPIO / comparator input | Drives external crystal; also serves as P2.7 digital I/O or CA7 analog comparator input. |
| 4 – VSS | Ground reference | Digital and analog ground return; connects directly to exposed thermal pad. |
| 5 – XIN/P2.6/CA6 | Crystal input / GPIO / comparator input | Accepts 32-kHz or high-frequency crystal; also functions as P2.6 I/O or CA6 comparator input. |
| 6 – RST/NMI | Reset / non-maskable interrupt | Active-low reset input; doubles as NMI source for critical fault handling. |
| 7 – TEST | JTAG test mode select | Enables JTAG interface when pulled high during power-up; tied to device protection fuse. |
| 8 – P2.0/ACLK/CA2 | GPIO / ACLK output / comparator input | Configurable as ACLK source for peripherals or CA2 analog input for comparator function. |
| 9 – P2.1/INCLK/CA3 | GPIO / timer clock input / comparator input | Provides external clock to Timer_A (INCLK) or serves as CA3 comparator input. |
| 10 – P2.2/CAOUT/TA0/CA4 | Comparator output / timer I/O / comparator input | Delivers comparator result (CAOUT), acts as TA0 capture/compare signal, or accepts CA4 analog input. |
| 11 – P2.3/TA1/CA0 | GPIO / timer I/O / comparator input | Supports TA1 capture/compare and CA0 analog input simultaneously via peripheral multiplexing. |
| 12 – P2.4/TA2/CA1 | GPIO / timer I/O / comparator input | Enables TA2 capture/compare and CA1 analog input; shared function managed by P2SEL register. |
| 13 – P2.5/CA5 | GPIO / comparator input | Dedicated analog input for Comparator_A+ (CA5); no timer function assigned. |
| 14 – P1.0/TACLK | GPIO / timer clock input | Accepts external clock source for Timer_A (TACLK); default function after reset is digital I/O. |
| 15 – P1.1/TA0/TDI/TCLK | GPIO / timer I/O / JTAG interface | Multi-function pin: TA0 capture/compare, JTAG TDI, or test clock; selected via JTAG instruction. |
| 16 – P1.2/TA1 | GPIO / timer I/O | Supports TA1 capture/compare operations; fully programmable as digital I/O with interrupt capability. |
| 17 – P1.3/TA2 | GPIO / timer I/O | Supports TA2 capture/compare; configured as general-purpose I/O with edge-selectable interrupt. |
| 18 – P1.4/SMCLK/TCK | GPIO / SMCLK output / JTAG interface | Outputs SMCLK for peripheral synchronization or serves as JTAG TCK; function selected by P1SEL. |
| 19 – P1.5/TA0/TMS | GPIO / timer I/O / JTAG interface | Performs TA0 compare output or JTAG TMS; mode controlled by JTAG state machine. |
| 20 – P1.6/TA1/TDI/TCLK | GPIO / timer I/O / JTAG interface | Supports TA1 compare output, JTAG TDI, or test clock; pin function depends on active interface mode. |
| 21 – P1.7/TA2/TDO/TDI | GPIO / timer I/O / JTAG interface | Delivers TA2 compare output or JTAG TDO/TDI; direction and function determined by JTAG instruction. |
| 22 – TEST | Test mode enable | Same as Pin 7; redundant TEST connection required for QFN package compliance per TI layout guide. |
| 23 – VCC | Supply voltage | Second VCC connection for improved power integrity; must be decoupled identically to Pin 2. |
| 24 – P2.5/CA5 | GPIO / comparator input | Duplicate of Pin 13; both pins route to same internal CA5 node - used for layout routing flexibility. |
| Exposed Pad | Thermal & electrical ground | Must be soldered to solid VSS plane; improves thermal dissipation and reduces EMI susceptibility. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-fast wake-up | Sub-1 μs transition from LPM4 to active mode using DCO - essential for duty-cycled sensor sampling. |
| On-chip emulation | Embedded Emulation Module (EEM) enables full-speed debugging and flash programming via MSP-FET430UIF - no external emulator required. |
| Calibrated DCO | Four factory-trimmed DCO frequencies (1/8/12/16 MHz ±1%) eliminate external crystal for many timing-critical applications. |
| Slope A/D conversion | Comparator_A+ with internal timer and CAOUT feedback enables high-resolution analog-to-digital conversion without ADC hardware. |
| Brownout detection | Integrated brownout circuit asserts RST/NMI below safe VCC threshold - prevents erratic firmware execution during battery sag. |
| BSL security | Bootstrap loader protected by user-defined password and disable key (0xAA55 at 0xFFDE) - prevents unauthorized firmware access. |
Applications
| Wireless Sensor Node | Battery-Powered Data Logger |
|---|---|
|
Use Scenario: Low-duty-cycle environmental monitoring with temperature/humidity sensing and periodic RF transmission. IC Role / Device Role / Timing Role: Central controller managing sensor acquisition, slope ADC conversion, sleep/wake scheduling, and UART-based data transmission. Use Value: 0.1 μA LPM4 current extends coin-cell battery life beyond 5 years; integrated comparator eliminates external ADC component cost. |
Use Scenario: Portable industrial equipment logging voltage, current, and status events over weeks between USB uploads. IC Role / Device Role / Timing Role: Standalone data acquisition unit with real-time clock (ACLK from 32-kHz crystal), flash storage, and wake-on-interrupt capability. Use Value: Factory-calibrated DCO ensures accurate timekeeping without crystal; 1 KB Flash stores firmware + 2 weeks of timestamped samples. |
| Smart Meter Endpoint | Portable Medical Monitor |
|
Use Scenario: Sub-metering module measuring AC line parameters and reporting via PLC or RF mesh network. IC Role / Device Role / Timing Role: Signal conditioning front-end with analog comparator for zero-crossing detection and Timer_A for pulse-width measurement. Use Value: CA0–CA7 inputs support multi-channel analog monitoring; 16-bit Timer_A captures precise timing intervals for energy calculation. |
Use Scenario: Wearable ECG/SpO₂ monitor requiring ultra-low-power operation and analog signal conditioning. IC Role / Device Role / Timing Role: Analog front-end controller performing slope ADC on biopotential signals and managing Bluetooth LE wake-up triggers. Use Value: Comparator_A+ provides >12-bit effective resolution via slope conversion; LPM3 (0.7 μA) enables continuous analog monitoring. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F2111IRGET | 2 KB Flash, 128 B RAM - double program memory with identical peripherals and pinout. | Required for larger firmware images or bootloader + application partitioning. | Select when firmware exceeds 1 KB or future scalability is needed; same PCB layout and toolchain. |
| MSP430G2553IRHB | 16 MHz max MCLK, 16 KB Flash, 512 B RAM, USCI UART/SPI/I²C - enhanced communication and memory. | Needed for USB HID, multi-protocol connectivity, or complex control algorithms. | Choose for designs requiring serial interfaces or >1 KB application code; different QFN-32 package and pinout. |
Compared with MSP430F2111IRGET, the MSP430F2101IRGET offers minimal memory footprint for deeply embedded sensor logic; versus MSP430G2553IRHB, it trades interface flexibility and memory for lower system cost and reduced PCB area in space-constrained endpoints.
Availability
MSP430F2101IRGET is available at Aetrix Electronics and suitable for wireless sensor nodes, battery-powered data loggers, and smart meter endpoints requiring stable component supply across long-lifecycle industrial programs.
Supply support for MSP430F2101IRGET 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 with emphasis on power efficiency and system integration.
The MSP430F2101IRGET belongs to the MSP430x21x1 ultra-low-power microcontroller family, designed specifically for battery-operated sensor systems requiring extended runtime, analog signal capture, and minimal bill-of-materials.
FAQ
What is the maximum operating frequency of the MSP430F2101IRGET?
The MSP430F2101IRGET supports a maximum MCLK frequency of 16 MHz, achievable when VCC ≥ 3.3 V and using the factory-calibrated DCO setting CALBC1_16MHZ/CALDCO_16MHZ. At 2.2 V, the maximum reliable frequency is 6 MHz. The CPU executes instructions synchronously with MCLK, and all timing-critical peripherals (Timer_A, comparator) derive clocks from this source.
Does the MSP430F2101IRGET include hardware UART or SPI peripherals?
No, the MSP430F2101IRGET does not integrate dedicated UART, SPI, or I²C hardware modules. Communication is implemented via software bit-banging on GPIO pins or through the bootstrap loader's UART interface using P1.1 (TX) and P2.2 (RX). For hardware serial interfaces, TI recommends the MSP430G2xx series or MSP430F5xx/F6xx families.
How is flash memory programmed on the MSP430F2101IRGET?
Flash programming on the MSP430F2101IRGET is supported via three methods: JTAG interface using tools like MSP-FET430UIF, UART-based bootstrap loader (BSL) using P1.1/P2.2 pins, or in-system programming by the CPU itself. All methods require proper VCC (≥2.2 V) and security fuse configuration; BSL access is protected by a user-defined password stored in information memory.
What is the purpose of the exposed thermal pad on the MSP430F2101IRGET QFN package?
The exposed thermal pad on the MSP430F2101IRGET (RGE package) must be soldered to a VSS-connected copper plane. It serves dual purposes: improving thermal dissipation during sustained active-mode operation and reducing high-frequency noise coupling into analog sections (e.g., Comparator_A+), thereby enhancing measurement stability in precision sensor applications.
Can the MSP430F2101IRGET operate without an external crystal?
Yes, the MSP430F2101IRGET can operate entirely from its internal digitally controlled oscillator (DCO), which is factory-calibrated to 1/8/12/16 MHz ±1%. This eliminates the need for external crystals in cost-sensitive or space-constrained designs. However, for applications requiring precise real-time clock (RTC) functionality or low-jitter timing, a 32-kHz watch crystal on XIN/XOUT is recommended to drive ACLK.
MSP430F2101IRGET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-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:
- -
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 1KB (1K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 128 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- Slope A/D
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2101IRGET FAQ
1.How can I place an order for MSP430F2101IRGET through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2101IRGET 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 MSP430F2101IRGET reliable?
The price and inventory of MSP430F2101IRGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2101IRGET is usually 5 days.
3.What payment methods are accepted for MSP430F2101IRGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2101IRGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2101IRGET?
MSP430F2101IRGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2101IRGET 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 MSP430F2101IRGET?
For technical support, including MSP430F2101IRGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2101IRGET requirements.
6.How does Aetrix verify that MSP430F2101IRGET is sourced from the original manufacturer or authorized distributors?
All MSP430F2101IRGET 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 MSP430F2101IRGET meets industry standards.
7.What is the process for return or replacement of MSP430F2101IRGET?
All MSP430F2101IRGET units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2101IRGET, 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 MSP430F2101IRGET part is unused and in its original packaging.
Return procedure for MSP430F2101IRGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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