Texas Instruments MSP430F1101AIRGET
- Part No.:
- MSP430F1101AIRGET
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 24-VFQFN Exposed Pad
- Datasheet:
-
MSP430F1101AIRGET.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 24VQFN
- Quantity:
- Payment:

- Shipping:

Inventory:499
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Product details
Overview
MSP430F1101AIRGET from Texas Instruments is an ultralow-power 16-bit RISC mixed-signal microcontroller featuring 1KB flash memory, 128B RAM, a 16-bit Timer_A with three capture/compare registers, an on-chip analog comparator, and fourteen programmable I/O pins. It operates from 1.8 V to 3.6 V and supports wake-up from standby mode in under 6 μs - ideal for battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F1101AIRGET datasheet, MSP430F1101AIRGET pinout, MSP430F1101AIRGET application, or MSP430F1101AIRGET equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for design-in and supply continuity planning.
Technical Context
The MSP430F1101AIRGET implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its basic clock module integrates a digitally controlled oscillator (DCO), 32-kHz crystal support, and selectable external resistor or resonator configurations - all optimized for sub-μA standby operation.
It features five software-selectable low-power modes (LPM0–LPM4), with LPM4 consuming only 0.1 μA at 2.2 V. The analog comparator supports slope A/D conversion on resistive sensors, while Timer_A3 provides PWM, interval timing, and synchronized capture/compare on three independent channels.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and constant generators - enables efficient C compilation and deterministic interrupt latency. |
| Memory | 1KB flash + 128B RAM - sufficient for compact firmware with field-upgradable code and data retention during sleep. |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, alkaline, or coin-cell power sources without regulation. |
| Active Current | 160 μA at 1 MHz / 2.2 V - allows continuous sensing and processing for >1 year on a CR2032 battery. |
| Standby Current | 0.7 μA - enables multi-year shelf life and rapid wake-up for event-driven operation. |
| Wake-up Time | <6 μs from LPM3 - ensures timely response to critical interrupts without sacrificing energy efficiency. |
| Package | 24-pin QFN (RGE) with exposed thermal pad - supports compact PCB layout and improved thermal dissipation in space-constrained designs. |
Pinout & Package
Package: 24-pin QFN (RGE), 4 mm × 4 mm, 0.5 mm pitch, with exposed thermal pad recommended to be connected to VSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 / TEST | JTAG test mode select | Enables JTAG programming and debug; tied to security fuse - must be controlled during production programming. |
| 2 / VCC | Power supply | Main supply input (1.8–3.6 V); requires local decoupling capacitor near pin. |
| 3 / XOUT | Crystal oscillator output | Drives external 32-kHz watch crystal or high-frequency crystal; internal feedback path enabled. |
| 4 / XIN | Crystal oscillator input | Accepts 32-kHz crystal or up to 8-MHz crystal/resonator; supports LFXT1 oscillator configuration. |
| 5 / RST/NMI | Reset/non-maskable interrupt | Active-low reset input; also serves as NMI source - critical for system recovery and fault handling. |
| 6 / P2.0/ACLK | I/O / auxiliary clock output | Configurable as GPIO or ACLK output - enables clock distribution to external peripherals or synchronization. |
| 7 / P2.1/INCLK | I/O / Timer_A clock input | Provides external clock source to Timer_A - supports precise timing from external sensors or signal sources. |
| 8 / P2.2/CAOUT/TA0 | I/O / comparator output / Timer_A channel 0 | Delivers comparator result or TA0 capture/compare signal - enables analog threshold detection with digital action. |
| 9 / P2.3/CA0/TA1 | I/O / comparator input A / Timer_A channel 1 | Analog input for comparator reference or TA1 capture/compare - supports dual-slope A/D conversion. |
| 10 / P2.4/CA1/TA2 | I/O / comparator input B / Timer_A channel 2 | Second analog comparator input or TA2 signal - enables differential sensing or multi-channel timing. |
| 11 / P2.5/ROSC | I/O / DCO resistor input | Connects external resistor to set nominal DCO frequency - eliminates need for crystal in cost-sensitive applications. |
| 12–19 / P1.0–P1.7 | General-purpose I/O with Timer_A functions | Eight bidirectional pins supporting TA0–TA2 capture/compare, TCK/TMS/TDI/TDO, and interrupt-capable inputs. |
| 20 / VSS | Ground reference | Primary ground return; thermal pad must be soldered to VSS plane for thermal and EMI performance. |
| 21–23 / NC | No-connect | Not internally bonded - left unconnected per TI design guidance. |
| 24 / Power Pad | Thermal and electrical ground | Exposed pad beneath package - must be soldered to VSS for thermal management and noise reduction. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow-power operation | 0.1 μA off-mode current with RAM retention enables decade-scale battery life in always-on sensor endpoints. |
| Integrated analog comparator | Supports slope-based A/D conversion on resistive sensors - eliminates need for external ADC in simple monitoring applications. |
| On-chip flash memory | 1KB flash with in-system programmability via JTAG or BSL - enables field firmware updates without external programmers. |
| Digital-controlled oscillator (DCO) | Stabilizes in <6 μs - provides fast wake-up from LPM3/LPM4 without external crystal startup delay. |
| 16-bit Timer_A3 | Three independent capture/compare registers with interrupt capability - supports simultaneous PWM generation and event timing. |
| Bootstrap loader (BSL) | UART-based flash programming using P1.1 (TX) and P2.2 (RX) - simplifies production programming and field upgrades. |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
|
Use Scenario: Battery-powered temperature/humidity node transmitting data via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Main controller executing sensor readout, data preprocessing, and low-duty-cycle RF transmission scheduling. Use Value: 0.7 μA standby current extends CR2032 battery life beyond 3 years; 6 μs wake-up ensures timely response to sensor triggers. |
Use Scenario: Wearable pulse oximeter capturing analog photodiode signals and computing SpO₂ values. IC Role / Device Role / Timing Role: Analog front-end controller performing slope A/D conversion on photodiode outputs using integrated comparator. Use Value: Eliminates external ADC and reduces BOM count; 1.8 V operation enables direct coin-cell power without regulator. |
| Smart Utility Meter Interface | Industrial Asset Tag |
|
Use Scenario: Tamper-detection module monitoring enclosure switch status and logging events to flash memory. IC Role / Device Role / Timing Role: Low-power event logger with nonvolatile storage, wake-up on interrupt, and secure boot via BSL password protection. Use Value: Flash memory retains tamper logs across power cycles; programmable security fuse prevents unauthorized firmware access. |
Use Scenario: NFC-enabled equipment tag reading environmental conditions and reporting via BLE gateway. IC Role / Device Role / Timing Role: Sensor hub aggregating data from discrete sensors and managing ultra-low-duty-cycle BLE advertising intervals. Use Value: LPM4 mode (0.1 μA) minimizes quiescent draw between BLE transmissions; 14 GPIOs support multiple sensor interfaces. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultralow-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F1121AIRGE | 4KB flash, 256B RAM, same package and pinout - higher memory capacity with identical peripheral set. | Required when firmware exceeds 1KB or additional RAM needed for buffering or protocol stacks. | Select MSP430F1121AIRGE if future firmware expansion or larger sensor data buffers are anticipated. |
| MSP430G2553IRHB | 2KB flash, 256B RAM, 20-pin QFN - newer generation with enhanced USCI serial modules and higher MCLK (16 MHz). | Lacks built-in comparator; requires external components for analog threshold detection. | Choose MSP430G2553IRHB for UART/SPI/I²C-heavy designs where analog comparator is not required. |
Compared with MSP430F1101AIRGET, MSP430F1121AIRGE offers scalable memory within identical footprint and power profile, while MSP430G2553IRHB trades analog integration for richer serial connectivity - making each suitable for distinct architecture trade-offs in resource-constrained embedded systems.
Availability
MSP430F1101AIRGET is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial asset tags requiring stable component supply, long-term lifecycle support, and traceable sourcing.
Supply support for MSP430F1101AIRGET 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 over 50 years of innovation in low-power design.
The MSP430x11x1(A) product line was engineered specifically for ultralow-power portable measurement and sensor interface applications - prioritizing sub-μA sleep currents, fast wake-up, and integrated analog functionality to minimize external components.
FAQ
What is the maximum operating frequency of the MSP430F1101AIRGET at 3.6 V?
The MSP430F1101AIRGET supports a maximum system clock (MCLK) frequency of 8 MHz at 3.6 V. This is specified in the "recommended operating conditions" table of the SLAS241I datasheet. The device achieves this using its internal digitally controlled oscillator (DCO) or external crystal/resonator sources - and the 8-MHz limit ensures reliable flash execution and peripheral timing within published electrical characteristics.
Does the MSP430F1101AIRGET support in-system programming without external hardware?
Yes, the MSP430F1101AIRGET supports in-system programming via its integrated bootstrap loader (BSL), which uses UART communication on P1.1 (TX) and P2.2 (RX). No external programmer is required - only a UART-to-USB bridge and TI's BSL script tools. The BSL is protected by a user-defined password stored in information memory, ensuring secure field updates without exposing flash contents.
What is the function of the TEST pin on the MSP430F1101AIRGET?
The TEST pin (Pin 1) on the MSP430F1101AIRGET selects JTAG test mode and connects to the JTAG security fuse. During normal operation, it must be pulled low or left floating (with internal pull-down active). Applying high voltage to TEST blows the JTAG fuse, permanently disabling debug access - a hardware-level security measure to prevent reverse engineering of firmware stored in flash memory.
Can the MSP430F1101AIRGET operate from a single 1.8-V supply without regulation?
Yes, the MSP430F1101AIRGET is fully specified to operate across 1.8 V to 3.6 V, including at the minimum 1.8-V rail. At 1.8 V, it delivers 4.15 MHz MCLK performance and maintains full functionality of flash, RAM, Timer_A, and the analog comparator - making it suitable for direct connection to single-cell lithium or alkaline batteries without intermediate regulation.
How many I/O pins does the MSP430F1101AIRGET provide in the RGE package?
The MSP430F1101AIRGET in the 24-pin QFN (RGE) package provides 14 usable I/O pins: eight on Port 1 (P1.0–P1.7) and six on Port 2 (P2.0–P2.5). Pins P2.6 and P2.7 are not implemented externally. All 14 pins support individual direction control, interrupt capability, and alternate functions including Timer_A signals and JTAG interface lines.
MSP430F1101AIRGET Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 24-VFQFN Exposed Pad
- Series:
- MSP430x1xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 8MHz
- Connectivity:
- -
- Peripherals:
- POR, WDT
- Number of I/O:
- 14
- 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:
MSP430F1101AIRGET FAQ
1.How can I place an order for MSP430F1101AIRGET through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F1101AIRGET 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 MSP430F1101AIRGET reliable?
The price and inventory of MSP430F1101AIRGET are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F1101AIRGET is usually 5 days.
3.What payment methods are accepted for MSP430F1101AIRGET?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F1101AIRGET transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F1101AIRGET?
MSP430F1101AIRGET orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F1101AIRGET 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 MSP430F1101AIRGET?
For technical support, including MSP430F1101AIRGET datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F1101AIRGET requirements.
6.How does Aetrix verify that MSP430F1101AIRGET is sourced from the original manufacturer or authorized distributors?
All MSP430F1101AIRGET 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 MSP430F1101AIRGET meets industry standards.
7.What is the process for return or replacement of MSP430F1101AIRGET?
All MSP430F1101AIRGET units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F1101AIRGET, 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 MSP430F1101AIRGET part is unused and in its original packaging.
Return procedure for MSP430F1101AIRGET:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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