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Texas Instruments MSP430F2111IPWR
- Part No.:
- MSP430F2111IPWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430F2111IPWR.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,127
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Product details
Overview
MSP430F2111IPWR from Texas Instruments is an ultra-low-power 16-bit mixed-signal microcontroller featuring 2KB+256B flash memory, 128B 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 and 2.2 V - ideal for battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430F2111IPWR datasheet, MSP430F2111IPWR pinout, MSP430F2111IPWR application, or MSP430F2111IPWR equivalent, key selection criteria include its 20-pin TSSOP package, calibrated DCO enabling sub-1 μs wake-up from standby, integrated comparator for analog signal conditioning, and JTAG + BSL programming support without external voltage.
Technical Context
The MSP430F2111IPWR implements a 16-bit RISC CPU with constant generators and seven addressing modes, delivering one-cycle instruction execution for register operations. Its basic clock module integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (1/8/12/16 MHz), 32-kHz crystal support, and selectable high-frequency crystal up to 16 MHz.
It features two 8-bit I/O ports (P1 and P2) with individually programmable pullup/pulldown resistors, edge-selectable interrupts, and peripheral mapping via port-select registers. The Comparator_A+ module provides eight-channel analog input multiplexing (CA0–CA7), CAOUT output, and direct integration with Timer_A for slope ADC functionality.
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 |
| Memory | 2KB flash + 256B information memory + 128B RAM - supports in-system programming via JTAG or UART BSL |
| Supply Voltage | 1.8 V to 3.6 V - enables direct operation from single-cell Li-ion or dual-cell alkaline batteries |
| Active Current | 250 μA at 1 MHz / 2.2 V - optimized for extended runtime in intermittent-sensing applications |
| Wake-up Time | <1 μs from LPM3/LPM4 - preserves timing integrity in event-triggered sensor wake-ups |
| Comparator Inputs | Eight selectable analog inputs (CA0–CA7) - enables flexible signal routing for battery monitoring or transducer interfaces |
| Timer Resources | Timer_A3 with three capture/compare registers - supports PWM generation, input capture, and interval timing simultaneously |
Pinout & Package
Package: 20-pin TSSOP (PW), body size 6.5 mm × 4.4 mm, 0.65 mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK | Timer_A clock input | Accepts external clock source for precise timer synchronization or gated sampling |
| P1.1/TA0 | Timer_A channel 0 I/O | Supports capture of rising/falling edges or PWM output on same pin |
| P1.4/SMCLK/TCK | Sub-main clock output / JTAG test clock | Enables clock visibility for debug or drives synchronous peripherals; dual-use reduces pin count |
| P2.0/ACLK/CA2 | ACLK output / comparator input | Provides low-frequency clock to peripherals while serving as analog input channel |
| XIN/P2.6/CA6 | Crystal oscillator input / comparator input | Shares pin between precision timing reference and analog sensing - requires careful PCB decoupling |
| RST/NMI | Reset or non-maskable interrupt | Hardware reset initiation and critical fault handling without software dependency |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 μA in LPM4 (RAM retention) extends shelf life and battery service intervals in dormant states |
| Factory-calibrated DCO | Four internal frequencies (1/8/12/16 MHz) trimmed to ±1% - eliminates need for external crystal in cost-sensitive designs |
| On-chip analog comparator | Supports slope-based A/D conversion without external ADC - reduces BOM and layout complexity |
| Bootstrap loader (BSL) | UART-based flash programming with password protection - enables field firmware updates without JTAG hardware |
| JTAG emulation module | Fully integrated EEM supports real-time debugging, breakpoints, and memory inspection via standard tools |
Applications
| Wireless Sensor Node | Battery-Powered Data Logger |
|---|---|
Use Scenario: Compact environmental monitor collecting temperature/humidity data and transmitting via sub-GHz RF link at scheduled intervals. IC Role / Device Role / Timing Role: Central controller managing sensor readout, data processing, low-power sleep scheduling, and RF interface timing. Use Value: Sub-1 μs wake-up and 0.1 μA LPM4 current minimize energy per measurement cycle, extending 2xAA battery life beyond 5 years. | Use Scenario: Standalone industrial logger recording vibration, voltage, or pressure at fixed intervals onto internal flash memory. IC Role / Device Role / Timing Role: System-on-chip executing timed acquisitions, analog comparisons, flash writes, and watchdog supervision. Use Value: Integrated comparator replaces discrete op-amp + ADC chain; 2KB flash stores >10,000 timestamped samples without external memory. |
| Portable Medical Device | Smart Utility Meter Interface |
Use Scenario: Handheld pulse oximeter performing analog front-end signal conditioning and LED drive control. IC Role / Device Role / Timing Role: Mixed-signal controller synchronizing LED pulses, photodiode signal acquisition, and analog comparator threshold detection. Use Value: Slope ADC mode converts photodiode current directly to digital values using only internal resources - no external ADC required. | Use Scenario: Tamper-detection module in electricity meter monitoring cover-open events and battery backup status. IC Role / Device Role / Timing Role: Low-power supervisor monitoring VCC brownout, comparator-driven battery voltage thresholds, and secure event logging. Use Value: Brownout detector + comparator + flash write capability enable autonomous tamper response and nonvolatile event storage during main power loss. |
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 | 1KB flash, 128B RAM, no CA6/CA7 pins - lacks full comparator input set and crystal oscillator support | Suitable only for simpler analog monitoring where crystal timing is unnecessary | Select when flash requirement is ≤1KB and crystal-less operation is acceptable |
| MSP430F2272IRHBT | 16KB flash, 512B RAM, 32-pin QFN, integrated USCI UART/SPI/I²C - adds serial communication peripherals | Required for designs needing host communication or larger firmware footprint | Choose when UART/I²C connectivity or >2KB code space is mandatory |
Compared with MSP430F2111IPWR, MSP430F2012IPW offers lower memory and no crystal support but matches pin count and package; MSP430F2272IRHBT provides expanded memory and serial interfaces at the cost of larger footprint and higher power in active mode - making MSP430F2111IPWR optimal for minimal-footprint, crystal-timed, comparator-dependent sensor controllers.
Availability
MSP430F2111IPWR is available at Aetrix Electronics and suitable for wireless sensor nodes, battery-powered data loggers, and portable medical devices requiring stable component supply across long-lifecycle industrial programs.
Supply support for MSP430F2111IPWR 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 product line targets ultra-low-power portable measurement applications - emphasizing extended battery life through intelligent power gating, fast wake-up, and integrated analog signal conditioning.
FAQ
What is the maximum operating frequency of the MSP430F2111IPWR?
The MSP430F2111IPWR supports a maximum MCLK frequency of 16 MHz when VCC ≥3.3 V, enabled by its factory-calibrated DCO. At 2.7 V, max frequency is 12 MHz; at 1.8 V, it is limited to 6 MHz. These ratings are defined in the Recommended Operating Conditions table and verified across temperature ranges from –40°C to 85°C.
Does the MSP430F2111IPWR support crystal oscillator operation?
Yes, the MSP430F2111IPWR supports external 32-kHz watch crystals via XIN/P2.6/CA6 and XOUT/P2.7/CA7 pins, and high-frequency crystals up to 16 MHz. Crystal operation requires proper load capacitance matching (typically 12.5 pF) and configuration of BCSCTL3 register bits XCAPx for internal capacitor selection.
How many I/O pins does the MSP430F2111IPWR provide?
The MSP430F2111IPWR provides 16 dedicated I/O pins: eight on Port 1 (P1.0–P1.7) and eight on Port 2 (P2.0–P2.7). All pins support individual direction control, pullup/pulldown resistor enable, and edge-selectable interrupts - with certain pins sharing alternate functions like Timer_A, comparator, or JTAG signals.
Can the MSP430F2111IPWR perform analog-to-digital conversion without an external ADC?
Yes, the MSP430F2111IPWR uses its integrated Comparator_A+ module in slope A/D conversion mode: the comparator output toggles against a ramp generated by Timer_A, and conversion result is derived from counter value at toggle point. This eliminates need for external ADC in low-resolution (<10-bit) sensing applications.
What programming interfaces are supported by the MSP430F2111IPWR?
The MSP430F2111IPWR supports JTAG (via P1.6/TDI, P1.7/TDO, TEST, and TCK) for full-featured debugging and programming, and UART-based Bootstrap Loader (BSL) using P1.1/TX and P2.2/RX pins. Both methods require no external programming voltage - enabling in-circuit flash updates during production or in-field firmware upgrades.
MSP430F2111IPWR 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:
- 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 ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2111IPWR FAQ
1.How can I place an order for MSP430F2111IPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2111IPWR 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 MSP430F2111IPWR reliable?
The price and inventory of MSP430F2111IPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2111IPWR is usually 5 days.
3.What payment methods are accepted for MSP430F2111IPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2111IPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2111IPWR?
MSP430F2111IPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2111IPWR 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 MSP430F2111IPWR?
For technical support, including MSP430F2111IPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2111IPWR requirements.
6.How does Aetrix verify that MSP430F2111IPWR is sourced from the original manufacturer or authorized distributors?
All MSP430F2111IPWR 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 MSP430F2111IPWR meets industry standards.
7.What is the process for return or replacement of MSP430F2111IPWR?
All MSP430F2111IPWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2111IPWR, 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 MSP430F2111IPWR part is unused and in its original packaging.
Return procedure for MSP430F2111IPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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