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Texas Instruments MSP430F2101IPWR
- Part No.:
- MSP430F2101IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430F2101IPWR.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,770
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Product details
Overview
MSP430F2101IPWR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 1 KB Flash, 128 B RAM, a 16-bit Timer_A with three capture/compare registers, an on-chip analog comparator for slope A/D conversion, and operation across 1.8 V–3.6 V supply. It targets battery-powered sensor systems requiring sub-1 µs wake-up and long-term energy efficiency.
For engineers reviewing the MSP430F2101IPWR datasheet, MSP430F2101IPWR pinout, MSP430F2101IPWR application, or MSP430F2101IPWR equivalent, key selection criteria include active-mode current at 1 MHz (250 µA @ 2.2 V), LPM4 standby current (0.1 µA), TSSOP-20 package compatibility, and integrated comparator-based analog signal acquisition without external ADC.
Technical Context
The MSP430F2101IPWR implements a 16-bit CPU with constant generators and seven addressing modes, enabling single-cycle register operations and high code efficiency. Its basic clock module supports internal DCO (calibrated to ±1% at 1/8/12/16 MHz), 32-kHz crystal, and external digital clock sources.
Power management includes five software-selectable low-power modes (LPM0–LPM4), with LPM4 achieving 0.1 µA retention via DCO and crystal oscillator shutdown. The on-chip comparator provides configurable inputs (CA0–CA7) and CAOUT output, enabling precision slope A/D conversion and battery-voltage supervision.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; enables deterministic real-time control in resource-constrained embedded systems |
| Memory | 1 KB Flash + 256 B information memory + 128 B RAM; supports in-system programming and BSL UART-based firmware updates |
| Supply Voltage | 1.8 V to 3.6 V; allows direct integration with single-cell Li-ion, alkaline, or coin-cell power sources |
| Active Current | 250 µA @ 1 MHz, 2.2 V; enables >10-year battery life in periodic-sensing applications at 1-second wake intervals |
| Standby Current | 0.7 µA in LPM3 (32-kHz ACLK active); 0.1 µA in LPM4 (all clocks off); critical for multi-year remote sensor deployments |
| Wake-up Time | <1 µs from LPMx to active mode; preserves timing integrity in event-triggered measurement sequences |
| Comparator Inputs | Eight selectable analog inputs (CA0–CA7); supports differential voltage monitoring and programmable threshold detection |
Pinout & Package
Package: 20-pin TSSOP (PW), body width 4.4 mm, lead pitch 0.65 mm, RoHS-compliant, thermal pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK | Timer_A clock input | Accepts external timing source for precise event synchronization or gated sampling |
| P1.1/TA0 | Timer_A capture/compare channel 0 | Supports PWM generation, pulse-width measurement, or BSL serial transmit (TX) |
| P2.2/CAOUT/TA0/CA4 | Comparator output / Timer_A channel 0 | Delivers comparator decision logic directly to timer for auto-triggered conversions or threshold interrupts |
| XIN/P2.6/CA6 | Low-frequency crystal input | Connects to 32.768-kHz watch crystal for accurate real-time clock and LPM3/LPM4 timing |
| RST/NMI | Reset or non-maskable interrupt | Provides hardware reset initiation and failsafe system recovery independent of software state |
| TEST | JTAG test mode select | Enables boundary-scan testing and debug interface activation during production test |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA LPM4 current enables decade-scale battery life in wireless sensor nodes |
| On-chip analog comparator | Eight-channel input mux and CAOUT output eliminate need for external comparator in slope A/D designs |
| Integrated bootstrap loader (BSL) | UART-based flash programming via P1.1/P2.2 pins removes requirement for JTAG hardware programmer |
| Digital-controlled oscillator (DCO) | Factory-calibrated frequencies (1/8/12/16 MHz) enable rapid clock startup without external crystal |
| 16-bit Timer_A3 | Three capture/compare registers support simultaneous PWM, input capture, and interval timing tasks |
Applications
| Wireless Sensor Node | Battery-Powered Data Logger |
|---|---|
Use Scenario: Temperature/humidity sensor reads analog outputs, digitizes via slope A/D using comparator, stores data in RAM, transmits periodically via RF link. IC Role / Device Role / Timing Role: Central controller executing sensor polling, slope A/D conversion, RAM buffering, and low-duty-cycle RF transmission scheduling. Use Value: 0.1 µA LPM4 current extends CR2032 battery life beyond 5 years; sub-1 µs wake-up ensures precise timestamping of sensor events. | Use Scenario: Industrial equipment monitors vibration or pressure, samples at fixed intervals, logs min/max values, triggers alert on threshold breach. IC Role / Device Role / Timing Role: Standalone data acquisition unit performing analog comparison, time-stamped storage, and nonvolatile event flagging. Use Value: Integrated comparator eliminates external components; 1 KB Flash stores firmware and calibration tables; brownout detector prevents corrupted writes during voltage sag. |
| Portable Medical Monitor | Smart Utility Meter Interface |
Use Scenario: Pulse oximeter front-end acquires photodiode signals, performs analog comparison for peak detection, drives LED timing via PWM. IC Role / Device Role / Timing Role: Analog signal conditioner and timing controller managing LED drive, photodiode sampling, and optical signal thresholding. Use Value: CAOUT-driven TA0 trigger enables synchronous LED pulsing and photodiode sampling; 1.8 V minimum supply supports single-cell lithium operation. | Use Scenario: Water/gas meter uses reed switch or Hall sensor to count pulses, accumulates totals, maintains RTC, and reports via PLC or RF. IC Role / Device Role / Timing Role: Pulse counter and real-time clock manager interfacing mechanical sensors and communication modules. Use Value: 32-kHz crystal support and LPM3 mode sustain accurate timekeeping at 0.7 µA; P1/P2 interrupt capability captures fast edge transitions reliably. |
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 |
|---|---|---|---|
| MSP430F2111IPWR | 2 KB Flash, same RAM and peripherals; identical pinout and electrical specs | Supports larger firmware images and more complex sensor fusion algorithms | Select when firmware size exceeds 1 KB or future scalability is required |
| MSP430G2231IPW | 1 KB Flash, 128 B RAM, but lacks comparator; uses newer G-series architecture with enhanced BSL | Suitable for digital-only sensing; requires external comparator for analog thresholding | Choose for cost-sensitive digital I/O applications where analog compare is unnecessary |
Compared with MSP430F2101IPWR, the MSP430F2111IPWR offers double Flash capacity with no trade-offs in power or footprint, while the MSP430G2231IPW reduces cost and simplifies toolchain but removes integrated analog comparison capability.
Availability
MSP430F2101IPWR is available at Aetrix Electronics and suitable for wireless sensor nodes, battery-powered data loggers, portable medical monitors, and smart utility meter interfaces requiring stable component supply and long-term industrial availability.
Supply support for MSP430F2101IPWR 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 for industrial, automotive, and consumer markets.
The MSP430F2101IPWR belongs to the MSP430x21x1 ultra-low-power mixed-signal MCU family, designed specifically for battery-operated sensor systems demanding nanowatt-level standby power and integrated analog signal acquisition.
FAQ
What is the maximum operating frequency of the MSP430F2101IPWR?
The MSP430F2101IPWR supports a maximum MCLK frequency of 16 MHz when VCC ≥3.3 V, with factory-calibrated DCO settings at 1 MHz, 8 MHz, 12 MHz, and 16 MHz. At 2.7 V, the guaranteed maximum is 12 MHz, and at 1.8 V it is 6 MHz per the recommended operating conditions table. This frequency scaling enables dynamic power/performance optimization in battery-constrained designs.
Does the MSP430F2101IPWR support in-system programming without a JTAG debugger?
Yes, the MSP430F2101IPWR includes a UART-based bootstrap loader (BSL) accessible via P1.1 (TXD) and P2.2 (RXD) pins. With a simple TTL-level serial interface, users can program Flash memory or RAM without JTAG hardware. Password protection and BSLKEY security features prevent unauthorized access, making it ideal for field firmware updates in deployed sensor nodes.
What analog functions does the MSP430F2101IPWR provide without external components?
The MSP430F2101IPWR integrates a Comparator_A+ module with eight selectable analog inputs (CA0–CA7), programmable hysteresis, and CAOUT output. This enables slope analog-to-digital conversion, battery-voltage supervision, zero-crossing detection, and window-comparator functionality - all without external op-amps or comparators. The comparator output can directly trigger Timer_A for autonomous event capture.
Which low-power modes are available on the MSP430F2101IPWR and what are their typical current draws?
The MSP430F2101IPWR offers six operating modes: Active Mode (250 µA @ 1 MHz, 2.2 V), LPM0 (65 µA), LPM2 (25 µA), LPM3 (0.7 µA), and LPM4 (0.1 µA). LPM4 disables all clocks including the 32-kHz crystal, retaining only RAM and register contents. These modes are software-selectable and interrupt-wakeup capable, supporting flexible energy budgeting in intermittent-sensing applications.
Is the MSP430F2101IPWR pin-compatible with other devices in the MSP430F21x1 family?
Yes, the MSP430F2101IPWR in TSSOP-20 (PW) package shares identical pinout and electrical characteristics with MSP430F2111IPWR, MSP430F2121IPWR, and MSP430F2131IPWR. This allows drop-in replacement for firmware upgrades (e.g., moving from 1 KB to 2 KB Flash) without PCB redesign, provided the target device's Flash size and feature set meet application requirements.
MSP430F2101IPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- 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:
MSP430F2101IPWR FAQ
1.How can I place an order for MSP430F2101IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2101IPWR 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 MSP430F2101IPWR reliable?
The price and inventory of MSP430F2101IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2101IPWR is usually 5 days.
3.What payment methods are accepted for MSP430F2101IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2101IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2101IPWR?
MSP430F2101IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2101IPWR 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 MSP430F2101IPWR?
For technical support, including MSP430F2101IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2101IPWR requirements.
6.How does Aetrix verify that MSP430F2101IPWR is sourced from the original manufacturer or authorized distributors?
All MSP430F2101IPWR 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 MSP430F2101IPWR meets industry standards.
7.What is the process for return or replacement of MSP430F2101IPWR?
All MSP430F2101IPWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2101IPWR, 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 MSP430F2101IPWR part is unused and in its original packaging.
Return procedure for MSP430F2101IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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