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Texas Instruments MSP430G2412IPW20R
- Part No.:
- MSP430G2412IPW20R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 20-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2412IPW20R.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 20TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,979
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Product details
Overview
MSP430G2412IPW20R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 8 KB flash, 256 B RAM, 8-channel analog comparator (Comp_A+), 16 I/O pins with capacitive-touch capability, and Universal Serial Interface (USI) supporting SPI and I²C - deployed in battery-powered sensor nodes and portable instrumentation requiring sub-µA standby current and <1 µs wake-up.
For engineers reviewing the MSP430G2412IPW20R datasheet, MSP430G2412IPW20R pinout, MSP430G2412IPW20R application, or MSP430G2412IPW20R equivalent, this page delivers verified technical context, package-specific pin functions, real-world use cases, and validated alternative options for low-power embedded design selection.
Technical Context
The MSP430G2412IPW20R implements a 16-bit CPU with seven addressing modes and constant generators for high code efficiency, paired with a basic clock module offering internal DCO (calibrated at 1/8/12/16 MHz), LF oscillator, and 32-kHz crystal support. It lacks ADC10 functionality - confirmed by Table 1 and terminal function notes restricting ADC pins to G2x52 variants only.
Its peripheral set includes Timer_A3 with three capture/compare registers, Spy-Bi-Wire debug interface, brownout detector, and five power-saving modes (LPM0–LPM4). Port P1 supports USI (SPI/I²C), comparator inputs, and timer capture/compare; Port P2 provides eight general-purpose I/O pins with individually configurable pullup/pulldown resistors and interrupt edge select.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 16 registers and 62.5-ns instruction cycle at 16 MHz - enables deterministic real-time control with minimal code footprint. |
| Flash / RAM | 8 KB flash memory (512-byte segments) and 256 B RAM - sufficient for firmware with sensor processing, communication stacks, and calibration data storage. |
| Supply Voltage | 1.8 V to 3.6 V operation - compatible with single-cell Li-ion, Li-poly, or dual-AA alkaline battery systems without external regulation. |
| Ultra-Low Power | Standby mode: 0.5 µA; Off mode (RAM retention): 0.1 µA - extends multi-year battery life in intermittently active sensing applications. |
| Wake-Up Time | <1 µs from standby to active mode - critical for event-triggered sampling where latency must be minimized. |
| Comparator | 8-channel analog comparator (Comp_A+) with programmable hysteresis and output routing - enables precision voltage monitoring, battery level detection, and zero-crossing sensing without ADC overhead. |
| Communication | Universal Serial Interface (USI) supporting hardware SPI and I²C - reduces CPU load for interfacing with sensors, EEPROMs, and displays using standard protocols. |
Pinout & Package
TSSOP-20 (PW) package: 6.5 mm × 4.4 mm, 0.65 mm pitch, thermally enhanced with exposed pad (not electrically connected per TI documentation). Pinout validated against SLAS722G Figure 1 (PW PACKAGE, TOP VIEW) and Table 2.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16, 15 | DVCC / AVCC / DVSS | Digital supply (DVCC), analog supply (AVCC), and digital ground (DVSS) - require separate decoupling; AVCC must be bypassed near pin 15 for stable comparator operation. |
| 2–9, 11–14 | P1.0–P1.7 | Port 1 bidirectional I/O with USI (SPI/I²C), timer TA0.x, comparator CAx, and ACLK - P1.6/P1.7 serve as SDO/SDI or SCL/SDA; P1.0–P1.5 support analog comparator inputs. |
| 17–20 | RST/NMI, TEST, XOUT, XIN | Spy-Bi-Wire debug interface (RST/NMI, TEST), and crystal oscillator terminals (XIN/XOUT) - XIN/P2.6 and XOUT/P2.7 are shared; crystal requires external 12–20 pF load capacitance. |
| 10–13 | P2.0–P2.5 | Port 2 general-purpose I/O with interrupt and resistor enable (P2REN) - no analog or peripheral functions; pulldown resistors must be explicitly enabled in software for reliable input behavior. |
Key Features
| Feature | Design Value |
|---|---|
| Capacitive-Touch I/O | Up to 16 pins support pin-oscillator-based touch sensing - enables button/slider interfaces without external components or dedicated ICs. |
| Programmable Code Protection | Security fuse prevents unauthorized flash read-out - protects proprietary firmware in production devices against reverse engineering. |
| On-Chip Emulation Logic | Spy-Bi-Wire interface uses only RST/NMI and TEST pins - eliminates need for full 4-pin JTAG header, saving PCB space and cost. |
| Brownout Detector | Configurable reset threshold (1.6–2.7 V) ensures reliable operation during battery discharge or supply transients - prevents erratic execution below safe voltage. |
| Calibrated DCO | Four factory-trimmed DCO frequencies (1/8/12/16 MHz) stored in info memory - eliminates external crystal for many timing-critical applications while maintaining ±3% accuracy over temperature. |
Applications
| Smart Sensor Node | Battery Supervision System |
|---|---|
Use Scenario: Temperature/humidity sensor node powered by CR2032 coin cell, transmitting data via I²C to BLE MCU every 5 minutes. IC Role / Device Role / Timing Role: MSP430G2412IPW20R acts as sensor hub controller - reads analog outputs via comparator thresholds, manages sleep/wake cycles, and handles USI-based I²C communication. Use Value: 0.1 µA off-mode current extends battery life beyond 5 years; <1 µs wake-up ensures precise timing of sensor sampling windows. | Use Scenario: Portable medical device monitors lithium battery voltage during charging/discharging to prevent overvoltage or deep discharge. IC Role / Device Role / Timing Role: MSP430G2412IPW20R serves as autonomous battery monitor - compares cell voltage against reference using Comp_A+, triggers alerts, and logs events to flash. Use Value: 8-channel comparator allows simultaneous monitoring of multiple battery cells or voltage rails; brownout detector prevents false readings during low-VCC conditions. |
| Capacitive Touch Interface | Low-Cost Industrial Controller |
Use Scenario: Appliance control panel with 8-button touch overlay, replacing mechanical switches in humid environments. IC Role / Device Role / Timing Role: MSP430G2412IPW20R executes capacitive sensing algorithm on P1.x pins, debounces touches, and communicates keypresses via SPI to main MCU. Use Value: Integrated pin-oscillator eliminates external RC networks; software-configurable sensitivity adapts to varying overlay thicknesses and environmental noise. | Use Scenario: HVAC zone controller reads temperature sensor, drives relay outputs, and reports status via RS-485 (using USI + external transceiver). IC Role / Device Role / Timing Role: MSP430G2412IPW20R functions as local intelligence unit - processes analog inputs, executes PID logic, and manages communication protocol framing. Use Value: 8 KB flash accommodates control algorithms and communication stack; 16 I/O pins support direct sensor/actuator interfacing without glue logic. |
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 |
|---|---|---|---|
| MSP430G2553IPW20R | Includes 10-bit ADC10 (8-channel, 200 kSPS), 512 B RAM, same package and core - adds analog digitization capability not present in MSP430G2412IPW20R. | Required where analog signal digitization (e.g., thermistor, potentiometer) is needed alongside comparator-based monitoring. | Select when ADC functionality is mandatory; otherwise, MSP430G2412IPW20R offers lower cost and identical power/performance for comparator-only use cases. |
| MSP430FR2111IPW16R | Ferroelectric RAM (FRAM) instead of flash, 1.5 KB FRAM, 375 B RAM, 16-pin TSSOP - eliminates write endurance limits and enables faster, lower-energy data logging. | Preferred for frequent parameter updates or event logging where flash wear-out or high write energy is a concern. | Choose for applications needing robust nonvolatile data storage with unlimited write cycles; MSP430G2412IPW20R remains optimal for static firmware with infrequent updates. |
Compared with MSP430G2553IPW20R, the MSP430G2412IPW20R omits ADC10 but retains identical comparator, USI, and power performance - making it more cost-effective for pure threshold-detection tasks. Against MSP430FR2111IPW16R, it trades FRAM flexibility for higher flash capacity and pin count, better suited to feature-rich firmware in 20-pin layouts.
Availability
MSP430G2412IPW20R is available at Aetrix Electronics and suitable for smart sensor nodes, battery supervision systems, capacitive touch interfaces, and low-cost industrial controllers requiring stable component supply across long-lifecycle designs.
Supply support for MSP430G2412IPW20R 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 delivering analog, embedded processing, and connectivity solutions with emphasis on energy efficiency and system integration.
The MSP430G2xx family targets ultra-low-power embedded applications - designed specifically for battery-operated measurement, sensing, and control systems where nanowatt-level operation and rapid wake-up are essential.
FAQ
Does the MSP430G2412IPW20R include an analog-to-digital converter (ADC)?
No, the MSP430G2412IPW20R does not include an ADC. Per TI's SLAS722G datasheet Table 1 and Terminal Functions note, ADC10 functionality is exclusive to the MSP430G2x52 series. The MSP430G2412IPW20R provides an 8-channel analog comparator (Comp_A+) but no SAR ADC - making it suitable for threshold detection rather than digitization tasks. For ADC capability, consider MSP430G2553IPW20R.
What is the maximum operating frequency of the MSP430G2412IPW20R?
The MSP430G2412IPW20R supports up to 16 MHz via its digitally controlled oscillator (DCO), with four factory-calibrated frequencies (1/8/12/16 MHz) stored in information memory segment A. This allows the device to achieve full-speed operation without an external crystal, though XIN/XOUT pins support optional 32-kHz watch crystal or external digital clock sources for precise timing.
Can the MSP430G2412IPW20R drive capacitive touch buttons?
Yes, the MSP430G2412IPW20R supports capacitive touch sensing on up to 16 I/O pins using its integrated pin-oscillator circuitry. Each supported pin (P1.x and selected P2.x) can be configured for oscillation-based touch detection, enabling robust button, slider, or wheel interfaces without external components - confirmed in the "Features" section and functional block diagram of SLAS722G.
What debug interface does the MSP430G2412IPW20R use?
The MSP430G2412IPW20R uses the Spy-Bi-Wire (SBW) interface, a two-wire variant of JTAG that requires only RST/NMI/SBWTDIO (pin 16) and TEST/SBWTCK (pin 17). This enables full in-circuit debugging and programming with minimal PCB footprint - eliminating the need for a 4-pin JTAG header while retaining breakpoints, register inspection, and flash programming capability.
Is the MSP430G2412IPW20R pin-compatible with other devices in the MSP430G2xx family?
The MSP430G2412IPW20R shares the TSSOP-20 (PW20) package footprint with several G2xx devices including MSP430G2553IPW20R and MSP430G2452IPW20R, but pin functions differ significantly - especially regarding ADC, USI, and timer resources. While physical mounting is identical, electrical compatibility requires verification of peripheral mapping; for example, ADC-related pins on G2x52 devices are general-purpose I/O on MSP430G2412IPW20R.
MSP430G2412IPW20R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 20-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- Not Verified
- Core Processor:
- MSP430 CPU16
- Core Size:
- 16-Bit
- Speed:
- 16MHz
- Connectivity:
- I2C, SPI, USI
- Peripherals:
- Brown-out Detect/Reset, DMA, POR, PWM, WDT
- Number of I/O:
- 16
- Program Memory Size:
- 8KB (8K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 256 x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- -
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2412IPW20R FAQ
1.How can I place an order for MSP430G2412IPW20R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2412IPW20R 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 MSP430G2412IPW20R reliable?
The price and inventory of MSP430G2412IPW20R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2412IPW20R is usually 5 days.
3.What payment methods are accepted for MSP430G2412IPW20R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2412IPW20R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2412IPW20R?
MSP430G2412IPW20R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2412IPW20R 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 MSP430G2412IPW20R?
For technical support, including MSP430G2412IPW20R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2412IPW20R requirements.
6.How does Aetrix verify that MSP430G2412IPW20R is sourced from the original manufacturer or authorized distributors?
All MSP430G2412IPW20R 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 MSP430G2412IPW20R meets industry standards.
7.What is the process for return or replacement of MSP430G2412IPW20R?
All MSP430G2412IPW20R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2412IPW20R, 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 MSP430G2412IPW20R part is unused and in its original packaging.
Return procedure for MSP430G2412IPW20R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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