My Inquiry
My Account
Texas Instruments MSP430F2101TDWR
- Part No.:
- MSP430F2101TDWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-SOIC (0.295", 7.50mm Width)
- Datasheet:
-
MSP430F2101TDWR.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 20SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:3,546
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430F2101TDWR 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. It operates from 1.8 V to 3.6 V and supports active-mode current of 250 μA at 1 MHz/2.2 V, enabling battery-powered sensor node applications requiring sub-1-μs wake-up from standby.
For engineers reviewing the MSP430F2101TDWR datasheet, MSP430F2101TDWR pinout, MSP430F2101TDWR application, or MSP430F2101TDWR equivalent, key selection criteria include its -40°C to 105°C industrial temperature rating, TSSOP-20 package, integrated DCO with four factory-calibrated frequencies (±1%), and JTAG/BSL programmability without external voltage.
Technical Context
The MSP430F2101TDWR 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 - all configurable via BCSCTL registers.
It features two 8-bit I/O ports (P1/P2) with individually programmable pullup/pulldown resistors, edge-selectable interrupts, and peripheral mapping including Timer_A inputs (TACLK, INCLK, CCIxA/CCIxB), comparator inputs (CA0–CA7), and JTAG/BSL signals (TCK/TMS/TDI/TDO) multiplexed on Port 1 pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and 62.5-ns instruction cycle time - enables deterministic real-time control and efficient code density. |
| Memory | 1 KB Flash + 256 B information memory + 128 B RAM - sufficient for compact firmware with calibration data storage in Info Mem Segment A. |
| Operating Voltage | 1.8 V to 3.6 V - supports direct connection to single-cell Li-ion, 2xAA, or 3.3 V system rails without regulation. |
| Ultra-Low Power | 0.1 μA in LPM4 (RAM retention, oscillator off) - extends shelf life and operational runtime in energy-harvesting or infrequent-wake-up systems. |
| Wake-Up Time | <1 μs from standby to active mode - meets tight timing constraints in responsive sensor-triggered event handling. |
| Temperature Range | -40°C to +105°C - qualified for under-hood automotive, industrial motor control, and outdoor environmental monitoring. |
| DCO Accuracy | Four factory-calibrated frequencies (1/8/12/16 MHz) ±1% - eliminates need for external crystal in cost-sensitive timing applications. |
Pinout & Package
Package: 20-pin TSSOP (PW), body width 4.4 mm, JEDEC MO-153 compliant. Thermal performance optimized for PCB copper pour under exposed pad (not applicable to TSSOP).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK | Timer_A clock input | Accepts external timing source for synchronous capture/compare operations; also functions as general-purpose I/O. |
| P1.1/TA0/TDI | Timer_A channel 0 / JTAG test data input | Supports PWM output or capture input; shares pin with JTAG TDI for in-system programming and debug. |
| P1.4/SMCLK/TCK | Sub-main clock output / JTAG test clock | Drives SMCLK to peripherals; doubles as JTAG TCK - requires careful signal routing to avoid interference during debug. |
| P2.2/CAOUT/TA0/CA4 | Comparator output / Timer_A channel 0 / analog input | Delivers comparator result directly to Timer_A for slope ADC; CA4 enables multi-channel analog sensing. |
| XIN/P2.6/CA6 | Crystal oscillator input / comparator input | Connects to low-frequency crystal (32.768 kHz) for RTC; CA6 allows shared pin usage in space-constrained designs. |
| RST/NMI | Reset or non-maskable interrupt | Active-low reset with built-in pullup; doubles as NMI source for critical fault handling without masking. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip analog comparator | Enables slope-based A/D conversion without external ADC, reducing BOM count and PCB area in sensor front-ends. |
| Bootstrap loader (BSL) | UART-based flash programming via P1.1/P2.2 - eliminates need for JTAG hardware during field firmware updates. |
| Digital I/O flexibility | All 16 GPIO pins support individually configurable direction, pullup/pulldown, and edge-triggered interrupts - simplifies interface to diverse sensors and actuators. |
| Five low-power modes | LPM0–LPM4 provide granular power control; LPM3 retains RAM while disabling DCO and MCLK - ideal for crystal-based real-time clock operation. |
| JTAG emulation module | Integrated EEM enables full-speed debugging, flash programming, and real-time variable inspection using MSP-FET430UIF. |
Applications
| Wireless Sensor Node | Industrial Temperature Monitor |
|---|---|
|
Use Scenario: Battery-powered node measuring ambient temperature and transmitting data via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Primary controller managing sensor readout, slope ADC conversion via Comparator_A+, and low-duty-cycle RF transmission scheduling. Use Value: 0.1 μA LPM4 current extends 10-year battery life; 1 μs wake-up ensures precise timing alignment with RF channel access windows. |
Use Scenario: DIN-rail mounted enclosure monitoring motor winding temperature in HVAC systems. IC Role / Device Role / Timing Role: Standalone measurement unit interfacing PT100/RTD via comparator-based ratiometric sensing and driving LED status indicators. Use Value: -40°C to 105°C rating ensures reliability in high-ambient environments; brownout detector prevents erratic behavior during line dips. |
| Smart Meter Tamper Detection | Portable Gas Detector |
|
Use Scenario: Utility meter detecting magnetic tampering via Hall-effect sensor and logging events to secure flash memory. IC Role / Device Role / Timing Role: Security-critical controller executing encrypted log writes, validating sensor thresholds, and triggering tamper alerts via GPIO. Use Value: Code protection via security fuse prevents firmware extraction; 1 KB Flash stores tamper timestamps with CRC integrity checks. |
Use Scenario: Handheld CO/H2S detector with electrochemical sensor, buzzer alarm, and LCD display. IC Role / Device Role / Timing Role: Signal conditioner converting analog sensor output to digital values using slope ADC, managing alarm thresholds, and controlling display refresh. Use Value: Integrated comparator eliminates external op-amp; ultra-low active current (250 μA @ 1 MHz) maximizes runtime between charges. |
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 |
|---|---|---|---|
| MSP430F2111TDWR | 2 KB Flash, 128 B RAM - double program memory with identical peripherals and pinout. | Suitable for applications requiring larger firmware (e.g., BLE stack integration or multi-sensor fusion algorithms). | Select when firmware size exceeds 1 KB or future scalability is required; no PCB change needed. |
| MSP430G2553IPW20R | 16 MHz max MCLK, 16 KB Flash, 512 B RAM, enhanced USCI UART/SPI/I²C - newer generation with expanded connectivity. | Better suited for designs needing serial communication to host processors or cloud gateways. | Choose for new designs requiring robust serial interfaces; requires layout revision due to different pin mapping and supply requirements. |
Compared with MSP430F2101TDWR, the MSP430F2111TDWR offers seamless memory upgrade within the same footprint, while the MSP430G2553IPW20R provides modern peripherals at the cost of higher active current and revised I/O allocation - making the F2101 optimal for minimal, cost-sensitive, battery-operated sensor endpoints.
Availability
MSP430F2101TDWR is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial temperature monitors, smart meter tamper detection, and portable gas detectors requiring stable component supply across extended product lifecycles.
Supply support for MSP430F2101TDWR 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 90 years of innovation in low-power design.
The MSP430F21x1 series was engineered for ultra-low-power mixed-signal applications where extended battery life, rapid wake-up, and integrated analog functionality are critical - targeting sensor systems, portable instrumentation, and energy-harvesting devices.
FAQ
What is the maximum operating frequency of the MSP430F2101TDWR?
The MSP430F2101TDWR 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 (±1%). 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 in SLAS439F.
Does the MSP430F2101TDWR support in-system programming without external hardware?
Yes, the MSP430F2101TDWR includes a UART-based bootstrap loader (BSL) accessible via P1.1 (TX) and P2.2 (RX). With a simple TTL-level serial interface, users can program Flash memory or RAM without JTAG hardware - provided the BSL security key is not disabled and the device is not locked.
What is the purpose of the comparator module in the MSP430F2101TDWR?
The Comparator_A+ module in the MSP430F2101TDWR enables slope analog-to-digital conversion by charging a capacitor through a known current and comparing its voltage against the input signal. It also supports battery voltage supervision and external analog signal monitoring - eliminating the need for external comparators or ADCs in resource-constrained designs.
Which development tools are compatible with the MSP430F2101TDWR?
The MSP430F2101TDWR is supported by TI's MSP-FET430UIF (USB JTAG), MSP-FET430PIF (parallel port), and MSP-TS430PW28 (TSSOP-20 target board). It also works with Code Composer Studio and naken430usb open-source tools. The device's Embedded Emulation Module (EEM) enables full-speed debugging and flash programming.
How does the MSP430F2101TDWR handle power supply fluctuations?
The MSP430F2101TDWR integrates a brownout detector that asserts a reset when VCC drops below a threshold (~1.3 V typical), preventing unreliable operation during power ramp-up or brownout events. This ensures deterministic startup and safe shutdown - critical for data integrity in logging or control applications.
MSP430F2101TDWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-SOIC (0.295", 7.50mm Width)
- 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 ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2101TDWR FAQ
1.How can I place an order for MSP430F2101TDWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2101TDWR 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 MSP430F2101TDWR reliable?
The price and inventory of MSP430F2101TDWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2101TDWR is usually 5 days.
3.What payment methods are accepted for MSP430F2101TDWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2101TDWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2101TDWR?
MSP430F2101TDWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2101TDWR 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 MSP430F2101TDWR?
For technical support, including MSP430F2101TDWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2101TDWR requirements.
6.How does Aetrix verify that MSP430F2101TDWR is sourced from the original manufacturer or authorized distributors?
All MSP430F2101TDWR 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 MSP430F2101TDWR meets industry standards.
7.What is the process for return or replacement of MSP430F2101TDWR?
All MSP430F2101TDWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2101TDWR, 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 MSP430F2101TDWR part is unused and in its original packaging.
Return procedure for MSP430F2101TDWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430F2101TDWR Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
