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Texas Instruments MSP430G2452IPW14R
- Part No.:
- MSP430G2452IPW14R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 14-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
MSP430G2452IPW14R.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 14TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:9,790
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Product details
Overview
MSP430G2452IPW14R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 8 KB flash, 256 B RAM, a 10-bit 200-ksps ADC with internal reference and autoscan, USI supporting SPI/I²C, and Timer_A with three capture/compare registers. It operates from 1.8 V to 3.6 V and targets battery-powered sensor nodes and portable measurement systems.
For engineers reviewing the MSP430G2452IPW14R datasheet, MSP430G2452IPW14R pinout, MSP430G2452IPW14R application, or MSP430G2452IPW14R equivalent, key selection criteria include ADC10 channel count (8), TSSOP-14 package constraints, Spy-Bi-Wire debug interface, ultra-low standby current (0.5 µA), and capacitive-touch I/O capability on up to 16 pins.
Technical Context
The MSP430G2452IPW14R implements a 16-bit CPU with constant generators and seven addressing modes, enabling single-cycle register operations. Its clock system integrates a digitally controlled oscillator (DCO) calibrated at 1/8/12/16 MHz, plus LF and crystal options - all configurable via BCSCTL registers.
Peripherals are memory-mapped and accessible by all instructions. The ADC10 module supports automatic data transfer via DTC, while Timer_A3 provides PWM, capture, and interval timing with interrupt-driven event handling on overflow and each CCR. USI enables hardware-assisted synchronous serial communication without CPU overhead.
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 at 16 MHz |
| Flash / RAM | 8 KB flash for firmware storage; 256 B RAM for runtime variables and stack - sufficient for compact sensor firmware |
| ADC10 Resolution & Speed | 10-bit SAR ADC with 200 kSPS max sampling rate and built-in autoscan across 8 analog inputs |
| Ultra-Low Power Modes | Five software-selectable low-power modes; standby draws only 0.5 µA, off mode with RAM retention draws 0.1 µA |
| USI Interface | Universal Serial Interface supporting full-duplex SPI and I²C master/slave - no external level-shifting required for 3.3 V systems |
| Timer_A3 Channels | One 16-bit timer with three capture/compare registers (TA0.0/TA0.1/TA0.2) enabling simultaneous PWM generation and input capture |
| Capacitive Touch I/O | Up to 16 GPIO pins support capacitive-touch sensing via integrated PinOsc - eliminates need for external touch controller ICs |
Pinout & Package
TSSOP-14 package (PW) with 0.65 mm pitch, 5.0 mm × 4.4 mm body size, and exposed thermal pad (not electrically connected). Designed for high-density PCB layouts and reflow-compatible assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (DVCC) | Digital supply voltage | Primary 1.8–3.6 V power rail for core logic and digital I/O; requires local 100 nF decoupling |
| 2 (P1.0/TA0CLK/ACLK/A0/CA0) | Multi-function I/O | Configurable as ADC input A0, comparator input CA0, timer clock source, or ACLK output - shared resource requiring careful mode selection |
| 5 (P1.3/ADC10CLK/CAOUT/VREF-/VEREF-/A3/CA3) | Analog subsystem terminal | Provides ADC10 conversion clock output, negative reference input, and analog input A3 - critical for precision ADC biasing and timing |
| 8–13 (P2.0–P2.5) | General-purpose I/O | 6 dedicated digital I/O pins with programmable pullup/pulldown resistors; no analog functions - ideal for control signals and status indicators |
| 14 (DVSS) | Digital ground | Return path for DVCC; must be routed separately from AVSS to minimize noise coupling into ADC and comparator circuits |
| 16 (RST/NMI/SBWTDIO) | Debug & reset interface | Single-pin Spy-Bi-Wire interface for programming and debugging; also serves as non-maskable interrupt and reset input |
Key Features
| Feature | Design Value |
|---|---|
| Integrated ADC10 with autoscan | Enables sequential sampling of up to 8 analog channels without CPU intervention - reduces firmware complexity and power consumption in multi-sensor systems |
| Digital-controlled oscillator (DCO) | Calibrated internal clock source achieving <1 µs wake-up from LPM4 - eliminates need for external crystal in cost-sensitive applications |
| USI hardware serial interface | Offloads SPI/I²C protocol handling from CPU - preserves low-power states during sensor data exchange with EEPROMs or environmental sensors |
| On-chip comparator with 8 channels | Supports battery voltage monitoring, windowed threshold detection, and slope ADC operation - replaces discrete comparator solutions |
| Capacitive-touch I/O capability | Allows direct implementation of touch buttons/sliders using only GPIO and firmware - no external RC networks or dedicated touch IC required |
Applications
| Smart Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-operated temperature/humidity sensor collecting data every 30 seconds and transmitting via UART or RF module. IC Role / Device Role / Timing Role: MSP430G2452IPW14R acts as main system controller, performing ADC sampling, data processing, and low-power scheduling - leveraging LPM3 for 99% duty-cycled operation. Use Value: 0.5 µA standby current extends CR2032 battery life beyond 5 years; integrated USI simplifies connection to digital humidity sensor (e.g., HDC1080). | Use Scenario: Wearable pulse oximeter acquiring analog photodiode signals and computing SpO₂ in real time. IC Role / Device Role / Timing Role: MSP430G2452IPW14R performs synchronized dual-channel ADC acquisition (red/IR LEDs), digital filtering, and LED drive timing via Timer_A PWM outputs. Use Value: 10-bit ADC with internal 1.5 V reference ensures consistent gain calibration; 256 B RAM accommodates FIR filter coefficients and buffer storage. |
| Industrial Control Panel | Energy Harvesting IoT Endpoint |
Use Scenario: DIN-rail mounted HMI panel with tactile buttons, LED indicators, and RS-485 communication to PLC. IC Role / Device Role / Timing Role: MSP430G2452IPW14R manages button debouncing, LED PWM dimming, and Modbus RTU framing - using USI in SPI mode to interface with isolated RS-485 transceiver. Use Value: 8 KB flash stores full Modbus stack and UI state machine; P1/P2 I/O pins directly drive LEDs and read mechanical switches without external logic. | Use Scenario: Solar-powered soil moisture sensor using supercapacitor storage and transmitting data hourly via LoRaWAN gateway. IC Role / Device Role / Timing Role: MSP430G2452IPW14R controls energy harvesting PMIC, initiates ADC measurements only when sufficient charge is available, and triggers LoRa transmission via GPIO handshake. Use Value: Brownout detector prevents erratic behavior during capacitor discharge; 0.1 µA off-mode with RAM retention preserves session state between transmissions. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2553IPW20R | 20-pin TSSOP; adds UART, 16 KB flash, 512 B RAM, and enhanced USI with UART mode | Required for designs needing hardware UART or larger code space - not pin-compatible with PW14 package | Select when serial host interface or firmware scalability is critical; requires PCB redesign due to 20-pin footprint |
| MSP430FR2152IPW14R | Ferroelectric RAM (640 B FRAM), lower active current (120 µA/MHz), no built-in ADC10 - uses separate ADC peripheral | Better suited for write-intensive logging or fast wake-up from LPM3.5; ADC functionality must be added externally or via software oversampling | Choose for ultra-reliable nonvolatile data logging or where FRAM endurance outweighs integrated ADC convenience |
Compared with MSP430G2452IPW14R, the MSP430G2553IPW20R offers expanded peripherals but demands layout changes, while the MSP430FR2152IPW14R trades integrated ADC for FRAM durability and lower active power - both require firmware adaptation despite same TSSOP-14 form factor.
Availability
MSP430G2452IPW14R is available at Aetrix Electronics and suitable for smart sensor nodes, portable medical monitors, and industrial control panels requiring stable component supply, long-term lifecycle assurance, and TI-authorized traceability.
Supply support for MSP430G2452IPW14R 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 control - emphasizing rapid wake-up, integrated analog peripherals, and minimal external component count.
FAQ
What is the maximum ADC sampling rate supported by the MSP430G2452IPW14R?
The MSP430G2452IPW14R supports a maximum ADC10 sampling rate of 200 kSPS under optimal conditions (VCC = 3.0 V, ADC10CLK = 5 MHz). This rate assumes single-channel conversion with internal reference and no DTC overhead. Real-world throughput may vary based on clock configuration, reference selection, and sample-and-hold timing - always verify against the SLAS722G datasheet timing tables.
Does the MSP430G2452IPW14R support hardware UART communication?
No, the MSP430G2452IPW14R does not include a dedicated UART peripheral. It features a Universal Serial Interface (USI) that supports SPI and I²C protocols only. UART functionality must be implemented in firmware using timer-generated bit-banging or by interfacing an external UART-to-SPI bridge IC. For native UART, consider the pin-compatible MSP430G2553IPW20R variant.
How many I/O pins on the MSP430G2452IPW14R support capacitive touch sensing?
The MSP430G2452IPW14R supports capacitive touch sensing on up to 16 I/O pins - specifically all P1.x (8 pins) and P2.x (8 pins) - using the integrated PinOsc module. However, in the 14-pin TSSOP package (PW14), only P1.0–P1.7 and P2.0–P2.5 are physically available (14 total), and P2.6/P2.7 are repurposed for XIN/XOUT. Thus, 14 pins are usable for capacitive touch in this package.
What debug interface does the MSP430G2452IPW14R use, and what pins are required?
The MSP430G2452IPW14R uses the two-wire Spy-Bi-Wire (SBW) interface for programming and debugging. Only two pins are required: RST/NMI/SBWTDIO (Pin 16) and TEST/SBWTCK (Pin 11). This eliminates the need for a full 4-pin JTAG header, reducing PCB footprint and connector cost compared to legacy JTAG-based MSP430 devices.
Is the MSP430G2452IPW14R RoHS compliant and halogen-free?
Yes, the MSP430G2452IPW14R is RoHS compliant and halogen-free per TI's official product change notices and packaging documentation. It meets JEDEC J-STD-609 Category 1 for bromine/chlorine content and complies with EU Directive 2011/65/EU. Full compliance documentation, including material declarations and test reports, is available through TI's Quality & Environmental section on ti.com.
MSP430G2452IPW14R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 14-TSSOP (0.173", 4.40mm Width)
- Series:
- MSP430G2xx
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Programmable:
- 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:
MSP430G2452IPW14R FAQ
1.How can I place an order for MSP430G2452IPW14R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2452IPW14R 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 MSP430G2452IPW14R reliable?
The price and inventory of MSP430G2452IPW14R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2452IPW14R is usually 5 days.
3.What payment methods are accepted for MSP430G2452IPW14R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2452IPW14R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2452IPW14R?
MSP430G2452IPW14R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2452IPW14R 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 MSP430G2452IPW14R?
For technical support, including MSP430G2452IPW14R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2452IPW14R requirements.
6.How does Aetrix verify that MSP430G2452IPW14R is sourced from the original manufacturer or authorized distributors?
All MSP430G2452IPW14R 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 MSP430G2452IPW14R meets industry standards.
7.What is the process for return or replacement of MSP430G2452IPW14R?
All MSP430G2452IPW14R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2452IPW14R, 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 MSP430G2452IPW14R part is unused and in its original packaging.
Return procedure for MSP430G2452IPW14R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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