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Texas Instruments MSP430F2112TPWR
- Part No.:
- MSP430F2112TPWR
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430F2112TPWR.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,561
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Product details
Overview
MSP430F2112TPWR from Texas Instruments is an ultra-low-power 16-bit RISC microcontroller featuring 2 KB flash, 256 B RAM, a 10-bit 200-ksps ADC with internal reference and DTC, two 16-bit timers (Timer0_A3 with three capture/compare registers, Timer1_A2 with two), USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I2C), and up to 24 GPIO pins. It targets battery-powered sensor nodes and portable instrumentation requiring sub-µA standby operation.
For engineers reviewing the MSP430F2112TPWR datasheet, MSP430F2112TPWR pinout, MSP430F2112TPWR application, or MSP430F2112TPWR equivalent, key selection criteria include its -40°C to 105°C temperature grade, TSSOP-28 package, integrated brownout detector, Spy-Bi-Wire debug interface, and calibrated DCO enabling <1 µs wake-up from LPM4.
Technical Context
The MSP430F2112TPWR implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency. Its basic clock module integrates a digitally controlled oscillator (DCO) calibrated to ±1% at four frequencies up to 16 MHz, plus support for 32-kHz crystal, HF crystal, resonator, or external digital clock sources.
Peripherals are memory-mapped and accessible via all CPU instructions. The ADC10 includes sample-and-hold, autoscan, and a data transfer controller (DTC) that autonomously stores conversion results in RAM without CPU intervention. The comparator_A+ supports slope A/D conversion and analog signal monitoring.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; register-to-register operations execute in one cycle. |
| Flash / RAM | 2 KB + 256 B flash memory; 256 B RAM - sufficient for compact firmware with calibration data in info memory. |
| ADC Performance | 10-bit, 200-ksps SAR ADC with internal reference, sample-and-hold, autoscan, and DTC - enables burst sampling of multiple channels without CPU overhead. |
| Power Modes | Active mode: 250 µA @ 1 MHz, 2.2 V; Standby: 0.7 µA; Off (RAM retention): 0.1 µA - optimized for intermittent sensing duty cycles. |
| Operating Temp | -40°C to +105°C - qualified for industrial and extended-temperature embedded applications. |
| Clock Sources | Internal DCO (calibrated to ±1% at 1/8/12/16 MHz), 32-kHz LF crystal, HF crystal up to 16 MHz, external digital clock, or resistor - flexible timing without external oscillators. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG) - enables full emulation, flash programming, and real-time debugging using minimal PCB footprint. |
Pinout & Package
Package: 28-pin TSSOP (PW), body size 9.7 × 4.4 mm, 0.65 mm pitch, exposed thermal pad (not electrically connected). RoHS-compliant, lead-free finish.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK/CAOUT | Timer/ADC/Comparator output | Provides timer clock input, ADC conversion clock source, and comparator output - enables synchronized analog-digital event triggering. |
| P1.1/TA0.0/TA1.0 | Timer capture/compare | Dual-function pin supporting CCI0A input for Timer0_A3 and CCI0A input for Timer1_A2 - allows shared signal routing for dual-timer edge detection. |
| P1.4/SMCLK/TCK | System clock output / JTAG test clock | Exposes SMCLK for external synchronization or serves as TCK during Spy-Bi-Wire programming - eliminates need for external clock generator in debug setups. |
| P2.0/ACLK/A0/CA2 | Low-frequency clock / ADC input / Comparator input | Routes ACLK (e.g., from 32-kHz crystal) while simultaneously serving as ADC channel A0 and comparator input - supports time-stamped analog acquisition. |
| RST/NMI/SBWTDIO | Reset / NMI / Debug I/O | Single pin handles power-on reset, non-maskable interrupt, and bidirectional Spy-Bi-Wire data - reduces pin count without sacrificing functionality. |
| XIN/P2.6/CA6 & XOUT/P2.7/CA7 | Crystal oscillator terminals | Supports 32-kHz watch crystal for precise real-time clocking and low-power timing - essential for metering and periodic wake-up applications. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with RAM retention enables multi-year battery life in wireless sensor endpoints. |
| Integrated analog subsystem | 10-bit ADC with DTC, comparator_A+, and internal voltage reference eliminate external components for basic signal conditioning and threshold detection. |
| Calibrated DCO | Four factory-trimmed DCO frequencies (1/8/12/16 MHz) with ±1% accuracy enable crystal-free operation while maintaining timing precision for UART/LIN communication. |
| Universal serial interfaces | USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I2C) provide protocol flexibility for sensor fusion, display control, and host communication without external transceivers. |
| On-chip emulation | Spy-Bi-Wire interface supports full-speed debugging, flash programming, and real-time trace with only two pins - accelerates firmware validation on space-constrained PCBs. |
Applications
| Smart Utility Metering | Portable Medical Sensors |
|---|---|
|
Use Scenario: Battery-powered electricity/water/gas meter collecting pulse counts, temperature, and pressure at 15-minute intervals. IC Role / Device Role / Timing Role: Main system controller executing measurement routines, managing RTC via ACLK, and transmitting data over UART/LIN to concentrator. Use Value: 0.1 µA off-mode current extends battery life beyond 10 years; integrated ADC and comparator reduce BOM cost by eliminating external signal chain ICs. |
Use Scenario: Wearable ECG or blood oxygen saturation (SpO₂) monitor acquiring analog biosignals and wirelessly reporting alerts. IC Role / Device Role / Timing Role: Analog front-end controller performing ADC sampling, slope A/D conversion via comparator_A+, and low-power BLE interface coordination. Use Value: DTC-enabled ADC automates multi-channel sampling without CPU wake-up; calibrated DCO ensures accurate UART baud rate for reliable host communication. |
| Industrial Condition Monitoring | Wireless Sensor Nodes |
|
Use Scenario: Vibration and temperature node mounted on motor housing, logging data locally and transmitting via RS-485 gateway. IC Role / Device Role / Timing Role: Data acquisition engine using Timer0_A3 for precise PWM-driven excitation and ADC10 for synchronized sampling. Use Value: Two independent 16-bit timers enable simultaneous waveform generation and timestamped capture; -40°C to 105°C rating ensures reliability in harsh enclosures. |
Use Scenario: Zigbee or Sub-GHz mesh node measuring ambient light, humidity, and motion in building automation systems. IC Role / Device Role / Timing Role: System manager handling sensor polling, sleep scheduling, and SPI-based radio control with USCI_B0. Use Value: 24 GPIO pins support direct connection to multiple sensors; ultra-fast <1 µs wake-up from LPM4 minimizes active time per measurement cycle. |
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 |
|---|---|---|---|
| MSP430F2122TPWR | 4 KB flash, 512 B RAM, same peripherals and package - doubles program storage and RAM capacity. | Required when firmware exceeds 2 KB or needs larger buffer space for communication stacks or data logging. | Select MSP430F2122TPWR if future firmware expansion or increased data buffering is anticipated; pin-compatible upgrade path. |
| MSP430G2553IPW28 | 16 KB flash, 512 B RAM, enhanced USCI (dual UART/I²C/SPI), but no integrated comparator or DTC - newer generation with higher integration. | Preferred for new designs needing larger code space, dual serial interfaces, or lower unit cost at volume; lacks slope A/D capability. | Choose MSP430G2553IPW28 for cost-sensitive, higher-volume applications where comparator_A+ and DTC are not required. |
Compared with MSP430F2112TPWR, MSP430F2122TPWR offers scalable memory while retaining identical peripheral set and power profile, whereas MSP430G2553IPW28 trades analog features for greater serial interface flexibility and lower bill-of-materials cost in production-scale deployments.
Availability
MSP430F2112TPWR is available at Aetrix Electronics and suitable for smart metering, portable medical devices, industrial condition monitoring, and wireless sensor networks requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for MSP430F2112TPWR 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 design.
The MSP430F21x2 series was engineered specifically for battery-operated measurement and sensing applications demanding nanowatt-level power management, integrated analog peripherals, and robust industrial temperature operation.
FAQ
What is the maximum operating frequency of the MSP430F2112TPWR?
The MSP430F2112TPWR supports a maximum system clock (MCLK) frequency of 16 MHz, achieved using the factory-calibrated internal DCO or an external HF crystal. Its 16-bit RISC core executes instructions at 62.5 ns per cycle at this rate, enabling responsive real-time control while maintaining ultra-low power consumption in active mode.
Does the MSP430F2112TPWR support crystal oscillators?
Yes, the MSP430F2112TPWR supports both low-frequency (32-kHz) and high-frequency (up to 16-MHz) crystal oscillators via dedicated XIN/P2.6 and XOUT/P2.7 pins. These crystals provide stable, low-jitter timing for RTC functions and high-accuracy serial communication, complementing the internal DCO's fast wake-up capability.
How many analog input channels does the ADC10 module support on the MSP430F2112TPWR?
The ADC10 module on the MSP430F2112TPWR supports eight analog input channels (A0–A7), mapped to P2.0, P2.1, P2.2, P2.3, P2.4, P3.0, P3.6, and P3.7. With autoscan mode and the integrated data transfer controller (DTC), it can sequentially convert all eight channels and store results in RAM without CPU intervention.
What debug interface does the MSP430F2112TPWR use?
The MSP430F2112TPWR uses the Spy-Bi-Wire (SBW) interface - a two-wire variant of JTAG - for programming and real-time debugging. It requires only RST/NMI/SBWTDIO and TEST/SBWTCK pins, enabling full flash programming, breakpoint setting, and register inspection with minimal PCB routing overhead.
Is the MSP430F2112TPWR pin-compatible with other devices in the MSP430F21x2 family?
Yes, the MSP430F2112TPWR in the 28-pin TSSOP (PW) package shares identical pinout and electrical characteristics with MSP430F2122TPWR and MSP430F2132TPWR. This allows hardware reuse across memory variants - upgrading flash/RAM without PCB redesign - provided the application fits within the smaller 2 KB/256 B resource envelope of the MSP430F2112TPWR.
MSP430F2112TPWR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430F2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, IrDA, LINbus, SCI, SPI, UART/USART
- Peripherals:
- Brown-out Detect/Reset, POR, PWM, WDT
- Number of I/O:
- 24
- Program Memory Size:
- 2KB (2K x 8 + 256B)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 105°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430F2112TPWR FAQ
1.How can I place an order for MSP430F2112TPWR through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2112TPWR 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 MSP430F2112TPWR reliable?
The price and inventory of MSP430F2112TPWR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2112TPWR is usually 5 days.
3.What payment methods are accepted for MSP430F2112TPWR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2112TPWR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2112TPWR?
MSP430F2112TPWR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2112TPWR 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 MSP430F2112TPWR?
For technical support, including MSP430F2112TPWR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2112TPWR requirements.
6.How does Aetrix verify that MSP430F2112TPWR is sourced from the original manufacturer or authorized distributors?
All MSP430F2112TPWR 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 MSP430F2112TPWR meets industry standards.
7.What is the process for return or replacement of MSP430F2112TPWR?
All MSP430F2112TPWR units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2112TPWR, 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 MSP430F2112TPWR part is unused and in its original packaging.
Return procedure for MSP430F2112TPWR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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