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Texas Instruments MSP430F2101TPW
- Part No.:
- MSP430F2101TPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430F2101TPW.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:118
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Product details
Overview
MSP430F2101TPW from Texas Instruments is an ultra-low-power 16-bit 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. It operates from 1.8 V to 3.6 V and supports active-mode current of 250 μA at 1 MHz/2.2 V. It is used in battery-powered sensor nodes requiring rapid wake-up (<1 μs) and minimal standby consumption (0.7 μA).
For engineers reviewing the MSP430F2101TPW datasheet, MSP430F2101TPW pinout, MSP430F2101TPW application, or MSP430F2101TPW equivalent, this page delivers verified technical context, exact pin functions, real-world use cases, and validated alternative options - all grounded in TI's SLAS439F datasheet and official package documentation.
Technical Context
The MSP430F2101TPW implements a 16-bit RISC CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its basic clock module integrates a digitally controlled oscillator (DCO), 32-kHz crystal support, and high-frequency crystal input up to 16 MHz - all calibrated to ±1% across four factory frequencies.
It features two 8-bit I/O ports (P1 and P2) with individually configurable pullup/pulldown resistors, edge-selectable interrupts, and JTAG-compatible test pins (TCK/TMS/TDI/TDO). The Comparator_A+ module provides analog signal comparison and enables slope-based A/D conversion without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; enables efficient low-power firmware execution in resource-constrained embedded systems. |
| Memory | 1 KB Flash + 256 B information memory + 128 B RAM; sufficient for compact sensor firmware with calibration data storage. |
| Supply Voltage | 1.8 V to 3.6 V; compatible with single-cell Li-ion, coin-cell, and regulated 3.3 V rails without level-shifting. |
| Active Current | 250 μA at 1 MHz / 2.2 V; allows >1-year operation on CR2032 in duty-cycled sensor applications. |
| Low-Power Modes | LPM4 draws 0.1 μA (RAM retention); enables multi-year shelf life and instant wake-up for event-triggered sensing. |
| Wake-Up Time | <1 μs from standby; critical for capturing transient analog events or responding to RF wake signals. |
| Comparator | On-chip Comparator_A+ with 8-channel analog mux (CA0–CA7); eliminates need for external op-amp or ADC in slope A/D designs. |
Pinout & Package
Package: 20-pin TSSOP (PW), body width 4.4 mm, pitch 0.65 mm, JEDEC MO-153 compliant. Thermal pad not present - no exposed pad connection required.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK | Timer_A clock input | Accepts external timing source for precise event synchronization; also serves as general-purpose I/O. |
| P1.1/TA0/TDI | Timer_A channel 0 / JTAG test data input | Dual-function pin: supports PWM output or BSL serial receive; shares TDI for in-system programming. |
| P1.4/SMCLK/TCK | Sub-main clock output / JTAG test clock | Provides SMCLK to peripherals while enabling debug access; requires no external clock generator. |
| P2.2/CAOUT/TA0/CA4 | Comparator output / Timer_A channel 0 / analog input | Enables comparator-driven timing (e.g., zero-crossing detection) and simultaneous analog monitoring. |
| XIN/P2.6/CA6 & XOUT/P2.7/CA7 | Crystal oscillator input/output | Supports 32-kHz watch crystal for RTC or high-frequency crystal up to 16 MHz; CA6/CA7 extend analog mux. |
| RST/NMI | Reset / non-maskable interrupt | Hardware reset initiation and fault-handling trigger; essential for brownout recovery and watchdog escalation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 μA LPM4 current enables decade-scale battery life in always-on sensor endpoints. |
| Integrated analog comparator | Eliminates external comparator IC and reduces BOM count in voltage-monitoring and slope A/D applications. |
| On-chip DCO with factory calibration | Four pre-calibrated frequencies (1/8/12/16 MHz) allow immediate clock setup without external crystal or trimming. |
| Bootstrap loader (BSL) | UART-based flash programming via P1.1/P2.2; enables field firmware updates without JTAG hardware. |
| JTAG emulation module | Full hardware debugging support (breakpoints, watchpoints, register inspection) using MSP-FET430U28 or MSP-FET430UIF. |
Applications
| Temperature Sensor Node | Smart Meter Tamper Detection |
|---|---|
Use Scenario: Battery-powered thermistor-based temperature logger sampling every 5 minutes and transmitting via sub-GHz RF. IC Role / Device Role / Timing Role: MSP430F2101TPW performs analog-to-digital conversion via comparator slope method, manages sleep/wake cycles, and controls RF transceiver timing. Use Value: 0.7 μA standby current extends CR2032 battery life beyond 3 years; <1 μs wake-up ensures accurate timestamping of thermal transients. |
Use Scenario: Tamper switch monitoring in utility meters detecting enclosure opening or magnetic interference. IC Role / Device Role / Timing Role: MSP430F2101TPW reads reed switch and Hall sensor inputs, triggers immediate LPM4 exit on event, and logs tamper time-stamps in RAM. Use Value: Brownout detector and 0.1 μA LPM4 mode guarantee reliable event capture even during power dips or long-term storage. |
| Portable Gas Detector | Industrial Equipment Status Monitor |
Use Scenario: Handheld CO detector using electrochemical sensor with analog output requiring periodic bias control and signal conditioning. IC Role / Device Role / Timing Role: MSP430F2101TPW drives sensor bias voltage, samples analog output via comparator-based integration, and drives LED alarm. Use Value: On-chip comparator and programmable I/O eliminate discrete op-amps and reduce PCB area by 30% vs. alternative 8-bit solutions. |
Use Scenario: DIN-rail mounted monitor tracking relay coil voltage, fan RPM, and ambient temperature in PLC cabinets. IC Role / Device Role / Timing Role: MSP430F2101TPW measures AC line-derived zero-crossings via comparator, counts tachometer pulses using Timer_A, and logs thermal trends. Use Value: 16-bit Timer_A with three capture/compare registers enables simultaneous high-resolution timing of multiple asynchronous inputs. |
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 |
|---|---|---|---|
| MSP430F2012IPW | Same 20-pin TSSOP package, identical 1 KB Flash/128 B RAM, but includes built-in 16-bit sigma-delta ADC (SD16A) instead of comparator-only analog front-end. | Better suited for direct precision analog measurement; less optimal when slope A/D suffices and cost minimization is critical. | Select MSP430F2012IPW only if ADC resolution >12 bits is required; otherwise MSP430F2101TPW offers lower system cost and simpler layout. |
| MSP430G2231IPW | Later-generation value-line device; same pinout, 2 KB Flash/256 B RAM, but lacks factory DCO calibration and uses different BCSCTL register mapping. | Requires software DCO tuning; not drop-in compatible due to register-level differences in clock control and interrupt vectors. | Choose MSP430G2231IPW for new designs needing more memory and modern toolchain support; avoid for legacy replacement without firmware revision. |
Compared with MSP430F2012IPW and MSP430G2231IPW, the MSP430F2101TPW uniquely balances proven ultra-low-power performance, factory-trimmed DCO stability, and minimal analog subsystem complexity - making it optimal for cost-sensitive, long-life sensor endpoints where slope A/D meets accuracy requirements.
Availability
MSP430F2101TPW is available at Aetrix Electronics and suitable for temperature sensor nodes, smart meter tamper detection, portable gas detectors, and industrial equipment status monitors requiring stable component supply across extended production lifecycles.
Supply support for MSP430F2101TPW 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 microcontroller innovation.
The MSP430F2101TPW belongs to the MSP430x21x1 ultra-low-power mixed-signal MCU family, designed specifically for battery-operated measurement and sensing applications demanding nanowatt-level standby and sub-microsecond wake-up.
FAQ
What is the maximum operating frequency of the MSP430F2101TPW?
The MSP430F2101TPW supports a maximum MCLK frequency of 16 MHz when VCC ≥3.3 V, with factory-calibrated DCO settings for 1 MHz, 8 MHz, 12 MHz, and 16 MHz. At 2.7 V, the guaranteed maximum is 12 MHz; at 1.8 V, it is limited to 6 MHz per TI's recommended operating conditions in SLAS439F.
Does the MSP430F2101TPW include a hardware UART peripheral?
No, the MSP430F2101TPW does not integrate a hardware UART. Serial communication is implemented via software UART using Timer_A outputs (e.g., P1.1 for TX) and GPIO inputs, or through its bootstrap loader (BSL) interface using P1.1 (TXD) and P2.2 (RXD) pins - as documented in TI's SLAU319 BSL user guide.
What is the purpose of the TEST pin on the MSP430F2101TPW?
The TEST pin (Pin 1) on the MSP430F2101TPW selects JTAG test mode for programming and debugging. It connects internally to the JTAG fuse and must be held high during fuse-blowing operations. In normal operation, it is typically pulled high via external resistor to enable JTAG functionality for development and production programming.
Can the MSP430F2101TPW operate from a 1.8 V supply during flash programming?
No. Flash programming for the MSP430F2101TPW requires a minimum VCC of 2.2 V, as specified in the "Recommended Operating Conditions" table of SLAS439F. Attempting flash write or erase below 2.2 V may result in incomplete or corrupted programming and is outside TI's qualified operating range.
How many I/O pins does the MSP430F2101TPW provide, and are they all individually configurable?
The MSP430F2101TPW provides 16 GPIO pins across Ports P1 and P2 (P1.0–P1.7 and P2.0–P2.7), all of which are individually configurable as digital inputs, outputs, or peripheral functions. Each pin supports programmable pullup/pulldown resistors and edge-selectable interrupts - confirmed in the "Digital I/O" section of SLAS439F.
MSP430F2101TPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430F2xx
- Packaging:
- Tube
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2101TPW FAQ
1.How can I place an order for MSP430F2101TPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2101TPW 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 MSP430F2101TPW reliable?
The price and inventory of MSP430F2101TPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2101TPW is usually 5 days.
3.What payment methods are accepted for MSP430F2101TPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2101TPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2101TPW?
MSP430F2101TPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2101TPW 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 MSP430F2101TPW?
For technical support, including MSP430F2101TPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2101TPW requirements.
6.How does Aetrix verify that MSP430F2101TPW is sourced from the original manufacturer or authorized distributors?
All MSP430F2101TPW 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 MSP430F2101TPW meets industry standards.
7.What is the process for return or replacement of MSP430F2101TPW?
All MSP430F2101TPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2101TPW, 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 MSP430F2101TPW part is unused and in its original packaging.
Return procedure for MSP430F2101TPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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