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Texas Instruments MSP430F2101IPW
- Part No.:
- MSP430F2101IPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430F2101IPW.pdf
- Description:
- IC MCU 16BIT 1KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,975
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Product details
Overview
MSP430F2101IPW from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 1 KB Flash, 128 B RAM, integrated Comparator_A+, Timer_A3 with three capture/compare registers, and a digitally controlled oscillator (DCO) enabling wake-up from standby in under 1 μs. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems requiring slope A/D conversion and minimal active-mode current (250 μA at 1 MHz, 2.2 V).
For engineers reviewing the MSP430F2101IPW datasheet, MSP430F2101IPW pinout, MSP430F2101IPW application, or MSP430F2101IPW equivalent, key selection criteria include its 20-pin TSSOP package, calibrated DCO frequencies up to 16 MHz, brownout detection, on-chip emulation module, and support for JTAG and UART-based bootstrap loader programming.
Technical Context
The MSP430F2101IPW implements a 16-bit CPU with constant generators and seven addressing modes, executing register-to-register instructions in one cycle. Its basic clock module integrates a 32-kHz crystal input (XIN/XOUT), internal DCO with factory-calibrated frequencies (1/8/12/16 MHz), and selectable MCLK/SMCLK/ACLK outputs.
Peripheral integration includes a 16-bit Timer_A3 supporting PWM, capture, and interval timing; an analog comparator with eight-channel input multiplexer (CA0–CA7) enabling slope ADC functionality; and two 8-bit I/O ports (P1/P2) with individually configurable pullup/pulldown resistors, interrupt edge select, and JTAG-compatible pins.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 general-purpose registers and 62.5-ns instruction cycle time at 16 MHz |
| Memory | 1 KB Flash (main code) + 256 B information memory + 128 B RAM - supports in-system programming via JTAG or UART BSL |
| Power Consumption | Active mode: 250 μA @ 1 MHz, 2.2 V; Standby: 0.7 μA; Off mode (RAM retention): 0.1 μA - enables multi-year battery life in sensor nodes |
| Clock System | Digital-controlled oscillator (DCO) with four factory-calibrated frequencies (±1%); supports 32-kHz crystal, external digital clock, or resonator |
| Timer & Analog | Timer_A3 with three capture/compare registers; Comparator_A+ with eight analog inputs (CA0–CA7) and CAOUT output for slope A/D conversion |
| Operating Range | -40°C to +85°C ambient temperature; 1.8 V to 3.6 V supply voltage - qualified for industrial-grade embedded applications |
Pinout & Package
Package: 20-pin Plastic Thin Shrink Small-Outline Package (TSSOP, PW), body size 6.5 mm × 4.4 mm, 0.65 mm pitch, exposed pad not present.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK | Timer_A clock input / GPIO | Accepts external clock source for Timer_A; default function enables precise event timing independent of system clocks |
| P1.1/TA0 | Timer_A CCI0A input / GPIO | Serves as capture input for Timer_A channel 0 or compare output Out0; also used for BSL serial transmit |
| P1.2/TA1 | Timer_A CCI1A input / GPIO | Provides capture capability for Timer_A channel 1 or compare output Out1; supports PWM generation |
| P1.3/TA2 | Timer_A CCI2A input / GPIO | Enables capture on Timer_A channel 2 or compare output Out2; usable for multi-phase timing control |
| P1.4/SMCLK/TCK | Sub-main clock output / JTAG test clock | Drives SMCLK to peripherals or serves as TCK during JTAG programming - dual-role pin requires careful signal routing |
| P2.0/ACLK/CA2 | ACLK output / Comparator_A+ input | Routes 32-kHz ACLK to peripherals or feeds CA2 analog input - critical for low-frequency timing and analog sensing |
| XIN/P2.6/CA6 | Crystal oscillator input / Comparator_A+ input | Connects to 32-kHz watch crystal or high-frequency crystal; also accepts analog signal CA6 for comparator operation |
| RST/NMI | Reset / non-maskable interrupt input | Active-low reset with NMI capability; must be pulled high externally; triggers power-on reset and brownout recovery |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 μA off-mode current with RAM retention enables decade-scale battery life in wireless sensor endpoints |
| On-chip emulation module (EEM) | Enables full-speed debugging, breakpoint setting, and flash programming via MSP-FET430U28 or MSP-FET430UIF tools |
| Bootstrap loader (BSL) | UART-based in-system programming without external hardware programmer - secured by user-defined password and BSLKEY |
| Comparator_A+ slope ADC | Converts analog signals using internal timer and comparator - eliminates need for external ADC in simple sensor front ends |
| Calibrated DCO with fast wake-up | Four factory-trimmed DCO frequencies (1/8/12/16 MHz) allow sub-1-μs transition from LPM3/LPM4 to active mode |
Applications
| Wireless Sensor Node | Battery-Powered Data Logger |
|---|---|
|
Use Scenario: Compact environmental monitor measuring temperature/humidity and transmitting data via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Primary controller managing sensor interface, slope A/D conversion via Comparator_A+, low-power scheduling, and RF packet framing. Use Value: 0.1 μA LPM4 current extends CR2032 battery life beyond 5 years; integrated BSL simplifies field firmware updates over UART. |
Use Scenario: Portable vibration logger capturing accelerometer data at fixed intervals and storing timestamps in Flash. IC Role / Device Role / Timing Role: Timekeeping and data acquisition controller using 32-kHz crystal (ACLK), Timer_A3 for periodic sampling, and Flash for non-volatile storage. Use Value: Factory-calibrated DCO ensures accurate 1-ms timer resolution without external crystal; brownout detector prevents corrupted Flash writes during voltage sag. |
| Smart Meter Tamper Detection | Industrial Control Panel Interface |
|
Use Scenario: Utility meter detecting physical tampering via magnetic switch or case-open sensor and triggering secure alert transmission. IC Role / Device Role / Timing Role: Low-power event-triggered controller using P1/P2 interrupt-capable GPIOs and Comparator_A+ for analog threshold monitoring. Use Value: Edge-selectable interrupts on all 16 I/O pins enable immediate response to tamper events; security fuse prevents unauthorized Flash access. |
Use Scenario: Human-machine interface for PLC subsystem, reading pushbuttons, driving LEDs, and communicating via UART to main controller. IC Role / Device Role / Timing Role: Dedicated I/O manager with programmable pullup/pulldown resistors, LED PWM via Timer_A3, and robust ESD-tolerant GPIOs. Use Value: Independent resistor enable per pin (P1REN/P2REN) eliminates external bias components; 1.8 V minimum supply supports wide-input industrial power rails. |
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 |
|---|---|---|---|
| MSP430F2111IPW | 2 KB Flash, same 128 B RAM, identical pinout and peripheral set | Supports larger firmware images and more complex sensor fusion algorithms without layout change | Select when firmware exceeds 1 KB or future scalability is required; no PCB modification needed |
| MSP430G2231IPW | 2 KB Flash, 256 B RAM, same TSSOP-20 package, but lacks comparator and has simplified clock system | Lower-cost option for digital-only control tasks without analog sensing requirements | Choose for cost-sensitive digital I/O applications where slope A/D or calibrated DCO is unnecessary |
Compared with MSP430F2101IPW, the MSP430F2111IPW offers double Flash capacity with identical power/performance characteristics, while the MSP430G2231IPW reduces analog functionality and calibration to lower unit cost - making each alternative optimal for distinct design priorities: scalability, cost, or analog integration.
Availability
MSP430F2101IPW is available at Aetrix Electronics and suitable for wireless sensor nodes, battery-powered data loggers, smart meter tamper detection, and industrial HMI interfaces requiring stable component supply across extended production lifecycles.
Supply support for MSP430F2101IPW 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 decades of expertise in ultra-low-power microcontroller design.
The MSP430F2101IPW belongs to the MSP430x21x1 series - a family engineered for portable measurement applications demanding extended battery life, integrated analog peripherals, and rapid low-power mode transitions.
FAQ
What is the maximum operating frequency of the MSP430F2101IPW?
The MSP430F2101IPW supports a maximum system clock (MCLK) frequency of 16 MHz, achieved using the factory-calibrated digitally controlled oscillator (DCO) at VCC ≥3.3 V. This frequency is confirmed in the Recommended Operating Conditions table and validated across the -40°C to +85°C temperature range. The MSP430F2101IPW achieves this performance while maintaining ultra-low active-mode current of 350 μA at 3 V and 16 MHz.
Does the MSP430F2101IPW support in-system programming without external hardware?
Yes, the MSP430F2101IPW includes a UART-based bootstrap loader (BSL) that enables in-system programming via P1.1 (TXD) and P2.2 (RXD) pins without external debug hardware. The BSL is protected by a user-defined password and can be disabled using the BSLKEY value 0xAA55 stored at address 0xFFDE. This feature allows field firmware updates for the MSP430F2101IPW using only a serial interface.
What analog capabilities does the MSP430F2101IPW provide?
The MSP430F2101IPW integrates a Comparator_A+ module with eight analog inputs (CA0–CA7), programmable hysteresis, and CAOUT output. It supports slope analog-to-digital conversion by combining the comparator with Timer_A3 - eliminating the need for external ADC components. This analog capability is fully functional across the device's 1.8 V to 3.6 V supply range and is documented in the SLAS439F datasheet for the MSP430F2101IPW.
Is the MSP430F2101IPW pin-compatible with other devices in the MSP430F21x1 family?
Yes, the MSP430F2101IPW shares identical pinout and package (20-pin TSSOP) with MSP430F2111IPW, MSP430F2121IPW, and MSP430F2131IPW. All devices use the same DW/PW/DGV/RGE footprint and terminal functions per Table 2 of SLAS439F. This allows direct substitution within the same family for firmware upgrades - for example, replacing MSP430F2101IPW with MSP430F2111IPW requires no PCB changes.
What development tools are recommended for the MSP430F2101IPW?
Texas Instruments recommends the MSP-FET430U28 (for PW-package target boards), MSP-FET430UIF (USB-based debugger), and MSP-TS430PW28 (TSSOP-20 target socket board) for development with the MSP430F2101IPW. These tools support full JTAG emulation, flash programming, and real-time debugging. The MSP430F2101IPW's integrated Emulation Module (EEM) ensures compatibility with all standard MSP430 development environments including Code Composer Studio and IAR Embedded Workbench.
MSP430F2101IPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430F2xx
- Packaging:
- Bulk
- 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:
MSP430F2101IPW FAQ
1.How can I place an order for MSP430F2101IPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2101IPW 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 MSP430F2101IPW reliable?
The price and inventory of MSP430F2101IPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2101IPW is usually 5 days.
3.What payment methods are accepted for MSP430F2101IPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2101IPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2101IPW?
MSP430F2101IPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2101IPW 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 MSP430F2101IPW?
For technical support, including MSP430F2101IPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2101IPW requirements.
6.How does Aetrix verify that MSP430F2101IPW is sourced from the original manufacturer or authorized distributors?
All MSP430F2101IPW 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 MSP430F2101IPW meets industry standards.
7.What is the process for return or replacement of MSP430F2101IPW?
All MSP430F2101IPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2101IPW, 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 MSP430F2101IPW part is unused and in its original packaging.
Return procedure for MSP430F2101IPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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