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Texas Instruments MSP430F2112TPW
- Part No.:
- MSP430F2112TPW
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 28-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430F2112TPW.pdf
- Description:
- IC MCU 16BIT 2KB FLASH 28TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,993
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Product details
Overview
MSP430F2112TPW 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 - deployed in portable battery-powered sensor nodes and energy-harvesting systems.
For engineers reviewing the MSP430F2112TPW datasheet, MSP430F2112TPW pinout, MSP430F2112TPW application, or MSP430F2112TPW equivalent, key selection criteria include its −40°C to +105°C industrial temperature grade, TSSOP-28 package with Spy-Bi-Wire debug interface, sub-1 µs wake-up from 0.1 µA off-mode, and integrated comparator for slope A/D conversion - all critical for low-duty-cycle embedded sensing designs.
Technical Context
The MSP430F2112TPW implements a 16-bit RISC CPU with seven addressing modes and constant generators for high code efficiency, paired with five software-selectable low-power modes (LPM0–LPM4) and a digitally controlled oscillator (DCO) calibrated to ±1% across four frequencies up to 16 MHz. Its clock system delivers ACLK, SMCLK, and MCLK from internal LF oscillator, external crystal (32 kHz or HF up to 16 MHz), or resistor-tuned DCO.
Peripherals are memory-mapped and accessible via all CPU instructions: ADC10 supports autoscan, sample-and-hold, and DTC-driven autonomous data transfer; Comparator_A+ enables battery voltage supervision and analog signal monitoring; USCI modules support simultaneous UART (with LIN auto-baud), IrDA, SPI, and I²C protocols on shared pins with flexible multiplexing.
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 clock cycle |
| Memory | 2 KB + 256 B flash (main + info memory), 256 B RAM - supports in-system programming and BSL via UART |
| ADC | 10-bit SAR ADC at 200 ksps with internal 1.5 V/2.5 V reference, sample-and-hold, autoscan, and DTC for zero-CPU-consumption data handling |
| Timers | Timer0_A3 (16-bit, 3 capture/compare registers) and Timer1_A2 (16-bit, 2 capture/compare registers) - support PWM, interval timing, and input capture |
| Low-Power Modes | Active mode: 250 µA @ 1 MHz, 2.2 V; Standby: 0.7 µA; Off mode (RAM retention): 0.1 µA - wake-up <1 µs from any LPM |
| Operating Temperature | −40°C to +105°C - qualified for extended industrial environments without derating |
| Supply Voltage | 1.8 V to 3.6 V - enables direct operation from single Li-ion, coin cell, or energy-harvesting sources |
Pinout & Package
Package: 28-pin TSSOP (PW), 9.7 mm × 4.4 mm, 0.65 mm pitch, thermally enhanced with exposed pad (not electrically connected).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK/CAOUT | Timer/ADC/Comparator output | Configurable as timer clock input, ADC conversion clock source, or comparator output - enables synchronized analog-digital timing |
| P1.1/TA0.0/TA1.0 | Timer0_A3 & Timer1_A2 capture/compare | Dual-function pin supporting CCI0A input for Timer0_A3 and CCI0A input for Timer1_A2 - allows shared event triggering |
| P2.0/ACLK/A0/CA2 | Low-frequency clock & ADC input | Provides ACLK output from 32-kHz crystal or internal oscillator while simultaneously serving as ADC channel A0 input |
| P2.2/TA0.0/A2/CA4/CAOUT | Timer/ADC/Comparator I/O | Supports Timer0_A3 CCI0B input, ADC channel A2, Comparator_A+ input, and CAOUT - enables mixed-signal feedback loops |
| P3.4/UCA0TXD/UCA0SIMO | USCI_A0 transmit / SPI master out | Primary UART TX or SPI SIMO pin - used for sensor data streaming or peripheral configuration over serial interface |
| RST/NMI/SBWTDIO | Reset / NMI / debug I/O | Spy-Bi-Wire bidirectional debug interface - enables full emulation and flash programming with only two pins (TEST + SBWTDIO) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with RAM retention - extends battery life in intermittent-sensing applications beyond 10 years on CR2032 |
| Integrated analog subsystem | 10-bit ADC with DTC + Comparator_A+ - eliminates need for external ADC or supervisor IC in compact sensor nodes |
| Dual USCI modules | USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C) - enables concurrent communication with UART-based host and I²C sensors |
| Calibrated DCO | Four factory-trimmed DCO frequencies (1/8/12/16 MHz) accurate to ±1% - removes need for external crystal in cost-sensitive designs |
| On-chip emulation | Spy-Bi-Wire interface with 2-pin debug - reduces PCB footprint and test fixture complexity vs. full JTAG |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data every 5 minutes, then transmitting via UART to BLE module. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, timer-triggered wake-up, USCI_A0 UART transmission, and low-power state transitions. Use Value: 0.1 µA off-mode and sub-1 µs wake-up minimize quiescent power, enabling >5-year operation on a single AA cell. |
Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals, performing real-time saturation calculation, and displaying results on OLED. IC Role / Device Role / Timing Role: Signal acquisition processor using ADC10 with autoscan and DTC to autonomously digitize dual-channel analog inputs without CPU intervention. Use Value: Integrated 10-bit ADC + DTC offloads CPU during measurement cycles, preserving battery for display and Bluetooth communication. |
| Industrial Condition Monitor | Smart Energy Harvesting Node |
Use Scenario: Vibration and temperature monitor mounted on motor housing, logging data to EEPROM and alerting via RS-485 when thresholds exceeded. IC Role / Device Role / Timing Role: Real-time data logger using Timer1_A2 for precise interval timing, Comparator_A+ for analog threshold detection, and USCI_B0 for I²C EEPROM access. Use Value: −40°C to +105°C rating and brownout detector ensure reliable operation in harsh thermal environments without external supervision circuitry. |
Use Scenario: Solar-powered soil moisture sensor harvesting microwatts from small PV cell, storing charge in supercapacitor, and waking periodically to measure and transmit. IC Role / Device Role / Timing Role: Energy-aware controller using DCO with resistor tuning (P2.5/ROSC) to match available supply voltage, and LPM4 for ultra-deep sleep between measurements. Use Value: 1.8 V minimum operating voltage and 0.1 µA off-mode allow operation directly from harvested energy storage without voltage boosting. |
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 |
|---|---|---|---|
| MSP430F2122TPW | 4 KB flash, 512 B RAM - double memory capacity with identical peripherals and pinout | Suitable for firmware with larger feature set or bootloader requirements | Select when application requires >2 KB code space or additional RAM for buffer-intensive protocols |
| MSP430G2553IPW28 | 16 KB flash, 512 B RAM, enhanced USCI (two UARTs), but no integrated comparator or DTC | Lacks slope A/D capability and autonomous ADC data transfer - requires CPU polling or DMA extension | Choose for higher memory needs and dual-UART connectivity where comparator and DTC are not required |
Compared with MSP430F2112TPW, the MSP430F2122TPW offers scalable memory within the same footprint and feature set, while the MSP430G2553IPW28 trades analog integration for greater code space and dual-serial flexibility - making the MSP430F2112TPW optimal for minimal-footprint, analog-rich, ultra-low-power sensing.
Availability
MSP430F2112TPW is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, and industrial condition monitors requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for MSP430F2112TPW 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, embedded processing, and connectivity technologies, with decades of leadership in ultra-low-power microcontrollers and precision analog solutions.
The MSP430F21x2 product line was designed specifically for battery-constrained, measurement-intensive applications - delivering optimized power/performance trade-offs through intelligent peripheral integration and aggressive low-power mode architecture.
FAQ
What is the maximum operating frequency of the MSP430F2112TPW?
The MSP430F2112TPW supports a maximum system clock (MCLK) of 16 MHz, achieved using the internal digitally controlled oscillator (DCO) with factory calibration to ±1% accuracy at four frequencies (1/8/12/16 MHz). External crystal oscillators up to 16 MHz are also supported via XIN/XOUT pins, and the DCO can be tuned using the ROSC pin (P2.5) with an external resistor for custom frequency settings.
Does the MSP430F2112TPW support in-system programming without external hardware?
Yes, the MSP430F2112TPW supports in-system programming via its built-in bootstrap loader (BSL), which operates over UART using pins P1.1 (RX) and P2.2 (TX). The BSL is protected by a user-defined password and enables flash programming without JTAG hardware - ideal for field firmware updates or production line programming using only a UART interface.
How many analog input channels does the ADC10 module support on the MSP430F2112TPW?
The ADC10 module on the MSP430F2112TPW 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. It includes internal 1.5 V and 2.5 V references, sample-and-hold, autoscan mode, and a data transfer controller (DTC) that autonomously stores conversion results to memory without CPU involvement.
What debug interface does the MSP430F2112TPW use, and how many pins are required?
The MSP430F2112TPW uses the Spy-Bi-Wire (SBW) debug interface, requiring only two pins: TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 7). This 2-pin interface provides full JTAG-equivalent functionality - including flash programming, real-time debugging, and breakpoint support - reducing PCB routing complexity and test fixture cost compared to standard 4-pin JTAG.
Is the MSP430F2112TPW pin-compatible with other devices in the MSP430F21x2 family?
Yes, the MSP430F2112TPW is pin-compatible with the MSP430F2122TPW and MSP430F2132TPW in the TSSOP-28 (PW) package - sharing identical pin functions, electrical characteristics, and footprint. This allows direct hardware reuse across variants when scaling flash/RAM requirements, provided firmware accommodates memory size differences.
MSP430F2112TPW Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 28-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430F2xx
- Packaging:
- Tube
- 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:
MSP430F2112TPW FAQ
1.How can I place an order for MSP430F2112TPW through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430F2112TPW 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 MSP430F2112TPW reliable?
The price and inventory of MSP430F2112TPW are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430F2112TPW is usually 5 days.
3.What payment methods are accepted for MSP430F2112TPW?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430F2112TPW transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430F2112TPW?
MSP430F2112TPW orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430F2112TPW 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 MSP430F2112TPW?
For technical support, including MSP430F2112TPW datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430F2112TPW requirements.
6.How does Aetrix verify that MSP430F2112TPW is sourced from the original manufacturer or authorized distributors?
All MSP430F2112TPW 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 MSP430F2112TPW meets industry standards.
7.What is the process for return or replacement of MSP430F2112TPW?
All MSP430F2112TPW units undergo pre-shipment inspection (PSI). If there is an issue with MSP430F2112TPW, 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 MSP430F2112TPW part is unused and in its original packaging.
Return procedure for MSP430F2112TPW:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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