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Texas Instruments MSP430G2432IPW14
- Part No.:
- MSP430G2432IPW14
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2432IPW14.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:219
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Product details
Overview
MSP430G2432IPW14 from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in 14-pin TSSOP package, featuring 8 KB flash, 256 B RAM, 10-bit 200-ksps ADC with internal reference and autoscan, USI supporting SPI/I²C, and Timer_A with three capture/compare registers - deployed in battery-powered sensor nodes and capacitive-touch interfaces.
For engineers reviewing the MSP430G2432IPW14 datasheet, MSP430G2432IPW14 pinout, MSP430G2432IPW14 application, or MSP430G2432IPW14 equivalent, key selection criteria include ADC channel count (8-channel), low-power mode timing (sub-1 µs wake-up), supply voltage range (1.8–3.6 V), and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2432IPW14 implements a digitally controlled oscillator (DCO) with four factory-calibrated frequencies up to 16 MHz, enabling rapid transition from LPM4 (0.1 µA) to active mode in under 1 µs. Its clock system supports ACLK (LF crystal or internal VLO), SMCLK (DCO-derived), and MCLK (system CPU clock).
It integrates a 10-bit SAR ADC with internal 1.5 V/2.5 V reference, sample-and-hold, and DMA-capable data transfer controller (DTC), alongside a universal serial interface (USI) configurable for hardware SPI or I²C - all operating within five software-selectable low-power modes.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; enables efficient C code execution and deterministic real-time response. |
| Flash / RAM | 8 KB flash memory + 256 B RAM; sufficient for firmware with ADC-driven sensor processing and communication stacks. |
| ADC Resolution & Speed | 10-bit SAR ADC, 200 ksps max; supports high-fidelity analog signal acquisition from temperature, light, or proximity sensors. |
| Supply Voltage Range | 1.8 V to 3.6 V; compatible with single-cell Li-ion, Li-polymer, or dual-AA alkaline power sources without regulation. |
| Low-Power Modes | Five modes including LPM4 (0.1 µA off-mode with RAM retention); extends battery life in intermittent-sampling applications. |
| Debug Interface | Spy-Bi-Wire (2-wire JTAG); enables in-system programming and full-speed debugging using TI MSP-FET or LaunchPad tools. |
| Package | 14-pin TSSOP (PW14); 5.0 × 4.4 mm footprint with 0.65 mm pitch - suitable for compact PCB layouts and automated assembly. |
Pinout & Package
14-pin TSSOP (PW14) package with exposed pad not present; thermal performance rated per TI SLAS723H specification. Pin functions validated per Table 2 of datasheet SLAS723H Rev. May 2013.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| DVCC (Pin 1) | Primary digital supply input | Must be decoupled locally with 100 nF ceramic capacitor; powers CPU, USI, Timer_A, and port logic. |
| P1.0/TA0CLK/ACLK/A0 (Pin 2) | Multi-function I/O | Configurable as ADC input A0, timer clock source, or auxiliary clock output - requires P1SEL.x setting for peripheral use. |
| P1.3/ADC10CLK/VREF-/VEREF-/A3 (Pin 5) | ADC reference & analog input | Provides negative ADC reference (VREF-/VEREF-) and analog input A3; internal reference selectable via ADC10CTL0 register. |
| P1.4/TA0.2/SMCLK/A4/VREF+/VEREF+/TCK (Pin 6) | Multi-function I/O | Supports ADC input A4, SMCLK output, JTAG test clock - TCK function active only during programming/debug sessions. |
| RST/NMI/SBWTDIO (Pin 10) | Reset & debug I/O | Active-low reset input; also serves as bidirectional Spy-Bi-Wire data line - requires external pullup for reliable reset assertion. |
| TEST/SBWTCK (Pin 11) | Debug clock input | Drives Spy-Bi-Wire clock; must be driven by debugger during programming - left unconnected in normal operation. |
| XIN/P2.6/TA0.1 (Pin 13) | Clock input & timer output | Accepts 32.768 kHz crystal input; also functions as Timer_A output TA0.1 - crystal load capacitance specified at 12.5 pF. |
| DVSS (Pin 14) | Digital ground reference | Return path for DVCC; must be connected to low-impedance ground plane - separate from AVSS for noise-sensitive ADC operation. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power ADC operation | 10-bit conversion at 200 ksps with internal reference and autoscan - enables continuous sensor monitoring at <10 µA average current. |
| Capacitive-touch I/O capability | Up to 16 pins support pin-oscillator-based touch sensing - eliminates need for external RC networks in human-interface designs. |
| Hardware USI module | Dedicated SPI/I²C controller with independent clock/data registers - offloads bit-banging from CPU and ensures protocol compliance. |
| Fast wake-up timer | Timer_A with three capture/compare registers and interrupt on overflow/compare - supports precise event timing and PWM generation. |
| Brownout detection | On-chip voltage monitor with programmable threshold - prevents erratic behavior during battery discharge or supply sag. |
Applications
| Industrial Sensor Node | Capacitive-Touch Remote Control |
|---|---|
Use Scenario: Wireless temperature/humidity node powered by coin cell, sampling every 30 seconds and transmitting via sub-GHz RF. IC Role / Device Role / Timing Role: MSP430G2432IPW14 acts as main controller, ADC manager, and RF interface coordinator - wakes on RTC interrupt, acquires sensor data, processes values, and triggers RF transmit sequence. Use Value: Sub-1 µs wake-up and 0.1 µA LPM4 current enable >5-year battery life; integrated USI simplifies SPI connection to RF transceiver. |
Use Scenario: Battery-operated wall-mounted HVAC control panel with slider and button touch zones. IC Role / Device Role / Timing Role: MSP430G2432IPW14 executes capacitive-touch scanning, debounces inputs, and communicates commands via I²C to display driver. Use Value: Built-in pin-oscillator circuitry eliminates external components; 16 touch-capable I/O pins support multi-zone UI with minimal BOM cost. |
| Portable Medical Monitor | Smart Energy Meter Interface |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals and computing SpO₂ in real time. IC Role / Device Role / Timing Role: MSP430G2432IPW14 performs synchronized dual-channel ADC sampling, digital filtering, and LED drive timing via Timer_A outputs. Use Value: 10-bit ADC with internal reference ensures stable measurement accuracy across 1.8–3.6 V supply range; autoscan reduces CPU overhead. |
Use Scenario: DIN-rail energy meter with isolated RS-485 communication and tamper-detection inputs. IC Role / Device Role / Timing Role: MSP430G2432IPW14 monitors mechanical switch inputs, manages isolated UART timing, and logs events to flash memory. Use Value: Brownout detector prevents corrupted flash writes during brownout; 8 KB flash accommodates firmware updates and event history storage. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2553IPW20 | 20-pin TSSOP; 16 KB flash, 512 B RAM, 8-channel ADC, USCI (enhanced USI), and hardware UART - no pin compatibility with MSP430G2432IPW14. | Supports UART-based protocols (e.g., Modbus RTU) and larger firmware; requires PCB redesign due to 20-pin layout and different pin mapping. | Select when UART communication or extended memory is required; not drop-in but offers higher integration for new designs. |
| MSP430FR2111IPW16 | 16-pin TSSOP; FRAM-based (0.5 KB), 10-bit ADC, USCI, and enhanced low-power modes - different memory architecture and no Spy-Bi-Wire (uses SBW only). | Enables faster write endurance and near-zero write latency; lacks factory-calibrated DCO frequencies and requires different clock initialization. | Prefer for write-intensive logging or frequent parameter updates; verify clock tree and debug tool compatibility before migration. |
Compared with MSP430G2432IPW14, MSP430G2553IPW20 provides UART and doubled memory but demands layout change, while MSP430FR2111IPW16 trades flash for FRAM endurance and simplified write cycles at the cost of DCO calibration and debug interface differences.
Availability
MSP430G2432IPW14 is available at Aetrix Electronics and suitable for industrial sensor nodes, capacitive-touch interfaces, and portable medical monitors requiring stable component supply, long-term lifecycle support, and consistent parametric performance across production batches.
Supply support for MSP430G2432IPW14 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 MSP430G2xx family delivers ultra-low-power mixed-signal MCUs optimized for battery-operated sensing, measurement, and human-interface applications - emphasizing energy efficiency, integration, and ease of development.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2432IPW14?
The MSP430G2432IPW14 supports a maximum ADC10 sampling rate of 200 ksps (kilo-samples per second) when using the internal oscillator as ADC10CLK and operating within its specified voltage and temperature range. This rate is achievable with autoscan enabled across multiple channels and is documented in the Electrical Characteristics section of SLAS723H. The MSP430G2432IPW14 maintains this performance while consuming less than 220 µA in active mode at 1 MHz and 2.2 V.
Does the MSP430G2432IPW14 support hardware UART communication?
No, the MSP430G2432IPW14 does not include a hardware UART peripheral. It features a Universal Serial Interface (USI) module that supports SPI and I²C protocols only. UART functionality must be implemented in software (bit-banged) using GPIO and Timer_A - which increases CPU load and limits baud rate reliability. For native UART, consider MSP430G2553IPW20, but note it is not pin-compatible with the MSP430G2432IPW14.
How many I/O pins on the MSP430G2432IPW14 support capacitive-touch sensing?
The MSP430G2432IPW14 supports capacitive-touch sensing on up to 16 I/O pins - specifically all eight pins of Port 1 (P1.0–P1.7) and up to eight pins of Port 2 (P2.0–P2.5 plus P2.6–P2.7). This capability relies on the built-in pin-oscillator circuitry, requiring only firmware configuration (P1DIR/P2DIR, P1SEL/P2SEL, and appropriate timer setup) - no external components are needed. Each pin can be independently enabled for touch detection in the MSP430G2432IPW14.
What debug interface does the MSP430G2432IPW14 use, and what tools are compatible?
The MSP430G2432IPW14 uses the 2-wire Spy-Bi-Wire (SBW) interface for programming and debugging, accessed via pins RST/NMI/SBWTDIO (Pin 10) and TEST/SBWTCK (Pin 11). It is fully compatible with TI's MSP-FET programmer/debugger and LaunchPad development kits (e.g., MSP-EXP430G2ET). No JTAG header is required - SBW operates over the same two pins used for reset and test, minimizing board space and connector cost for the MSP430G2432IPW14.
Is the MSP430G2432IPW14 pin-compatible with other devices in the MSP430G2x32 family?
Yes, the MSP430G2432IPW14 shares identical pinout and electrical characteristics with other 14-pin TSSOP variants in the MSP430G2x32 family, including MSP430G2332IPW14, MSP430G2232IPW14, and MSP430G2132IPW14. All share the same PW14 package, pin numbering, and peripheral mappings - enabling firmware reuse and hardware scalability across flash/RAM/ADC configurations without PCB changes. This compatibility is confirmed in Table 1 of SLAS723H.
MSP430G2432IPW14 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- Packaging:
- Tube
- 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:
- 10
- 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:
- A/D 8x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2432IPW14 FAQ
1.How can I place an order for MSP430G2432IPW14 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2432IPW14 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 MSP430G2432IPW14 reliable?
The price and inventory of MSP430G2432IPW14 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2432IPW14 is usually 5 days.
3.What payment methods are accepted for MSP430G2432IPW14?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2432IPW14 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2432IPW14?
MSP430G2432IPW14 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2432IPW14 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 MSP430G2432IPW14?
For technical support, including MSP430G2432IPW14 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2432IPW14 requirements.
6.How does Aetrix verify that MSP430G2432IPW14 is sourced from the original manufacturer or authorized distributors?
All MSP430G2432IPW14 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 MSP430G2432IPW14 meets industry standards.
7.What is the process for return or replacement of MSP430G2432IPW14?
All MSP430G2432IPW14 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2432IPW14, 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 MSP430G2432IPW14 part is unused and in its original packaging.
Return procedure for MSP430G2432IPW14:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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