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Texas Instruments MSP430F2111TPW
- Part No.:
- MSP430F2111TPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430F2111TPW.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:420
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Product details
Overview
MSP430F2111TPW from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 2 KB + 256 B flash memory, 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.
For engineers reviewing the MSP430F2111TPW datasheet, MSP430F2111TPW pinout, MSP430F2111TPW application, or MSP430F2111TPW equivalent, key selection criteria include its TSSOP-20 package, -40°C to 105°C temperature grade, integrated comparator-based ADC capability, ultra-fast <1 μs wake-up from standby mode, and JTAG/on-chip emulation support for embedded firmware development.
Technical Context
The MSP430F2111TPW implements a 16-bit RISC CPU with constant generators and seven addressing modes, delivering 62.5-ns instruction cycle time. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% at 1/8/12/16 MHz, plus support for 32-kHz crystal and high-frequency external sources.
It features two 8-bit I/O ports (P1 and P2) with individually programmable pullup/pulldown resistors and edge-selectable interrupts, a brownout detector, and a bootstrap loader accessible via UART using P1.1 (TX) and P2.2 (RX). The comparator_A+ module enables analog signal comparison and slope A/D conversion without external components.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and 62.5-ns instruction cycle - enables efficient C code execution and deterministic real-time response. |
| Memory | 2 KB + 256 B flash / 128 B RAM - sufficient for compact firmware with calibration data storage in info memory segment A. |
| Supply Voltage | 1.8 V to 3.6 V - compatible with single-cell Li-ion, coin-cell, or regulated 3.3 V rails in portable systems. |
| Active Current | 250 μA at 1 MHz, 2.2 V - extends battery life in always-on sensing nodes operating at sub-MHz clock rates. |
| Wake-up Time | <1 μs from standby mode - allows rapid reaction to external events while maintaining ultra-low average power. |
| Operating Temperature | -40°C to +105°C - qualified for industrial and automotive under-hood environments. |
| Comparator Inputs | 8-channel analog mux (CA0–CA7) - supports multi-sensor voltage monitoring or precision threshold detection. |
Pinout & Package
Package: 20-pin TSSOP (PW), body width 4.4 mm, thermal pad not present - suitable for compact PCB layouts with standard reflow assembly.
| 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/TX | Timer_A compare output / BSL TX | Drives UART transmit line during bootloader programming; also serves as PWM output. |
| P1.2/TA1 | Timer_A capture/compare channel 1 | Supports pulse-width measurement or dual-edge timing for motor control feedback. |
| P1.3/TA2 | Timer_A capture/compare channel 2 | Enables third independent PWM or input-capture channel for multi-signal analysis. |
| P1.4/SMCLK/TCK | Sub-main clock output / JTAG test clock | Provides peripheral clock domain; doubles as debug interface clock for in-circuit programming. |
| P2.0/ACLK/CA2 | ACLK output / comparator input | Routes low-frequency crystal clock to peripherals; feeds analog reference for comparator thresholding. |
| XIN/P2.6/CA6 | Crystal oscillator input / comparator input | Connects to 32-kHz watch crystal; shares pin with CA6 for flexible analog monitoring. |
| RST/NMI | Reset or non-maskable interrupt | Hardware reset initiation and critical fault handling - active-low, Schmitt-triggered input. |
| TEST | JTAG test mode select | Enables boundary-scan and emulation when pulled high during power-up - required for debugging. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 μA in LPM4 (RAM retention) - enables years of operation on CR2032 coin cell in intermittent-sensing applications. |
| Integrated analog comparator | 8-input mux with internal reference and CAOUT output - eliminates need for external comparator in battery-monitoring or zero-crossing detection. |
| On-chip emulation module (EEM) | Fully supported by MSP-FET430U28 and MSP-TS430PW28 - enables real-time debugging without external probes. |
| Bootstrap loader (BSL) | UART-based flash programming via P1.1/P2.2 - allows field firmware updates without JTAG hardware. |
| Digital I/O flexibility | 16 GPIO pins with individually configurable direction, pullup/pulldown, and interrupt edge - simplifies interface to sensors, LEDs, and switches. |
Applications
| Wireless Sensor Node | Battery-Powered Data Logger |
|---|---|
Use Scenario: Compact environmental sensor collecting temperature/humidity and transmitting via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, data processing, low-power sleep scheduling, and RF packet framing. Use Value: Sub-μA LPM4 current and <1 μs wake-up minimize duty-cycle overhead, extending 10-year battery life with periodic 10-second wake intervals. |
Use Scenario: Standalone temperature logger recording hourly readings to internal flash over 6 months. IC Role / Device Role / Timing Role: Autonomous timing and storage manager using ACLK-driven RTC and flash wear-leveling routines. Use Value: Integrated 32-kHz crystal support and 256-byte info memory enable robust timestamping and calibration storage without external components. |
| Industrial Motor Monitor | Smart Meter Tamper Detection |
Use Scenario: Brushless DC motor controller monitoring back-EMF zero crossings and thermal shutdown signals. IC Role / Device Role / Timing Role: Real-time comparator-based commutation trigger and fault supervisor with hardware-accelerated timing. Use Value: Comparator_A+ with CAOUT and Timer_A capture inputs provide deterministic <100 ns response to analog transitions - critical for BLDC phase alignment. |
Use Scenario: Electricity meter detecting case opening, magnetic tampering, or voltage sags using analog and digital inputs. IC Role / Device Role / Timing Role: Low-power security monitor with brownout detection, NMI-triggered logging, and secure flash write protection. Use Value: Brownout detector and programmable security fuse prevent unauthorized firmware access and ensure reliable event logging during power anomalies. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430F2121TPW | 4 KB flash / 256 B RAM - double program memory and doubled RAM vs. MSP430F2111TPW. | Suitable for applications requiring larger firmware (e.g., BLE stack integration or advanced filtering algorithms). | Select when firmware size exceeds 2 KB or RAM usage exceeds 128 B; same pinout and peripheral set. |
| MSP430G2553IPW20 | 16 KB flash / 512 B RAM / enhanced USCI module - adds UART/SPI/I²C; no factory DCO calibration. | Preferred for designs needing serial communication peripherals or higher memory headroom, but requires external clock tuning. | Choose for cost-sensitive production where serial connectivity is mandatory and calibration tolerance >±3% is acceptable. |
Compared with MSP430F2111TPW, the MSP430F2121TPW offers scalable memory within identical low-power operation and pin compatibility, while the MSP430G2553IPW20 trades factory-calibrated DCO stability for richer serial interfaces and larger memory - making it better suited for connected devices where communication outweighs precision timing needs.
Availability
MSP430F2111TPW is available at Aetrix Electronics and suitable for wireless sensor nodes, battery-powered data loggers, industrial motor monitors, and smart meter tamper detection systems requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MSP430F2111TPW 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 focused on analog and embedded processing technologies, with decades of expertise in low-power design and industrial-grade reliability.
The MSP430F21x1 product line targets ultra-low-power portable measurement and sensing applications, emphasizing extended battery life through intelligent power gating, fast wake-up, and integrated analog front-end functionality.
FAQ
What is the maximum operating frequency of the MSP430F2111TPW?
The MSP430F2111TPW supports a maximum system clock (MCLK) frequency of 16 MHz when VCC ≥ 3.3 V. At lower supply voltages, the maximum frequency is reduced: 12 MHz at 2.7 V and 6 MHz at 1.8 V. These limits are defined by the DCO calibration and must be observed to ensure stable operation and meet timing specifications in the SLAS439F datasheet.
Does the MSP430F2111TPW support in-system programming without external hardware?
Yes, the MSP430F2111TPW includes a UART-based bootstrap loader (BSL) that enables in-system programming using only P1.1 (TX) and P2.2 (RX) pins. No JTAG interface is required for basic firmware updates, though the BSL is protected by a user-configurable password and can be disabled via the BSLKEY register at address 0xFFDE to prevent unauthorized access.
What are the key differences between the MSP430F2111TPW and MSP430F2101TPW?
The MSP430F2111TPW provides 2 KB + 256 B flash memory and 128 B RAM, whereas the MSP430F2101TPW has only 1 KB + 256 B flash and the same 128 B RAM. Both share identical peripherals, pinout, and low-power characteristics. The increased flash in MSP430F2111TPW accommodates more complex firmware, such as enhanced sensor fusion or secure boot routines.
Can the MSP430F2111TPW operate from a 1.8 V supply while running at full speed?
No. At 1.8 V supply, the MSP430F2111TPW is rated for a maximum MCLK frequency of 6 MHz per the recommended operating conditions table in SLAS439F. Attempting to run at 12 MHz or 16 MHz below 2.7 V violates electrical specifications and may cause timing violations, flash corruption, or erratic behavior - system clock must be scaled per VCC.
How is the analog comparator used for slope A/D conversion on the MSP430F2111TPW?
The MSP430F2111TPW's Comparator_A+ module performs slope A/D conversion by charging a capacitor with a known current and measuring the time required for its voltage to cross a reference threshold using the comparator output. This time value - captured via Timer_A - is directly proportional to the input voltage, enabling 10–12 bit resolution without external ADC hardware.
MSP430F2111TPW 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:
- 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:
- 2KB (2K 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:
MSP430F2111TPW FAQ
1.How can I place an order for MSP430F2111TPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2111TPW 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 MSP430F2111TPW reliable?
The price and inventory of MSP430F2111TPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2111TPW is usually 5 days.
3.What payment methods are accepted for MSP430F2111TPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2111TPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2111TPW?
MSP430F2111TPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2111TPW 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 MSP430F2111TPW?
For technical support, including MSP430F2111TPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2111TPW requirements.
6.How does Aetrix verify that MSP430F2111TPW is sourced from the original manufacturer or authorized distributors?
All MSP430F2111TPW 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 MSP430F2111TPW meets industry standards.
7.What is the process for return or replacement of MSP430F2111TPW?
All MSP430F2111TPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2111TPW, 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 MSP430F2111TPW part is unused and in its original packaging.
Return procedure for MSP430F2111TPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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