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Texas Instruments MSP430G2744IDA38
- Part No.:
- MSP430G2744IDA38
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430G2744IDA38.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:200
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Product details
Overview
MSP430G2744IDA38 from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in a 38-pin TSSOP package, featuring 32KB+256B flash, 1KB RAM, 10-bit 200-ksps ADC with internal reference and DTC, dual 16-bit timers (Timer_A3 and Timer_B3), USCI_A0/USCI_B0 supporting UART/LIN/IrDA/SPI/I²C, and operation from 1.8 V to 3.6 V. It targets battery-powered sensor nodes and RF front ends requiring fast wake-up (<1 µs) and extended runtime.
For engineers reviewing the MSP430G2744IDA38 datasheet, MSP430G2744IDA38 pinout, MSP430G2744IDA38 application, or MSP430G2744IDA38 equivalent, key selection criteria include its 32 I/O pins with analog input capability (A0–A15), calibrated DCO up to 16 MHz, brownout detector, Spy-Bi-Wire debug interface, and support for LIN-compliant UART auto-baud detection in embedded sensing systems.
Technical Context
The MSP430G2744IDA38 implements a 16-bit CPU with constant generators and five low-power modes (LPM0–LPM4), enabling sub-1-µA standby current and 0.1-µA off-mode retention. Its clock system integrates DCO (calibrated at 1/8/12/16 MHz), LFXT1 (32-kHz crystal), VLO, and external sources - all selectable via BCSCTL registers.
Peripherals are tightly coupled to power management: the ADC10 uses autoscan and DTC to autonomously transfer conversion results to RAM without CPU intervention; Timer_A3 and Timer_B3 each provide three capture/compare registers with shadow register support in TB3; USCI modules operate independently of MCLK, allowing asynchronous serial communication during low-power states.
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 | 32KB + 256B flash memory and 1KB RAM; sufficient for standalone sensor firmware with calibration tables and protocol stacks |
| ADC Resolution | 10-bit SAR ADC with 12-channel input multiplexer (A0–A15); supports simultaneous sampling across multiple sensors |
| Power Consumption | 270 µA active @ 1 MHz/2.2 V; 1 µA LPM3 (LFXT1); 0.1 µA LPM4 - enables multi-year battery life in coin-cell applications |
| Wake-up Time | <1 µs from LPM3/LPM4 to active mode; critical for duty-cycled wireless sensor wake-on-event designs |
| Communication | USCI_A0 (UART/LIN/IrDA/SPI) + USCI_B0 (SPI/I²C); LIN mode includes automatic baud-rate detection for automotive sensor networks |
| Clock Sources | DCO (1/8/12/16 MHz calibrations), 32-kHz crystal, VLO, external resistor (ROSC), and digital clock input - enables flexible timing architecture |
Pinout & Package
Package: 38-pin TSSOP (DA), 12.5 mm × 6.2 mm body size, surface-mount compatible with standard reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK | Timer_A clock input / ADC conversion clock | Enables synchronous triggering of ADC conversions using timer overflow events |
| P2.3/TA1/A3/VREF− | Analog input A3 / ADC negative reference | Supports differential ADC measurements or external reference biasing |
| P2.4/TA2/A4/VREF+ | Analog input A4 / ADC positive reference | Allows programmable reference voltage generation for ratiometric sensor interfaces |
| P3.0/UCB0STE/UCA0CLK/A5 | USCI_B0 slave transmit enable / USCI_A0 clock / ADC input A5 | Shared pin enables SPI slave mode while retaining analog sensing on same port |
| RST/NMI/SBWTDIO | Reset / non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug interface reduces PCB footprint and eliminates need for dedicated JTAG header |
| TEST/SBWTCK | Spy-Bi-Wire test clock input | Enables in-system programming and debugging using two-wire interface (TEST + SBWTDIO) |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA LPM4 with RAM retention enables decade-scale battery life in energy-harvesting sensor nodes |
| Data Transfer Controller (DTC) | Automatically moves ADC10 results to RAM without CPU wake-up - reduces active time by >90% in periodic sampling |
| LIN-compliant UART | Automatic baud-rate detection allows interoperability with automotive LIN master nodes without pre-negotiated timing |
| Calibrated DCO | Four factory-trimmed frequencies (1/8/12/16 MHz) eliminate need for external crystal in cost-sensitive applications |
| Brownout detector | Configurable threshold prevents erratic behavior during battery voltage sag - critical for reliable field-deployed sensors |
Applications
| Wireless Sensor Node | Industrial Temperature Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and pressure data every 5 seconds, then transmitting via sub-GHz RF link. IC Role / Device Role / Timing Role: Main controller executing sensor acquisition, ADC conversion, data processing, and RF packet formatting; uses DTC to minimize CPU wake time. Use Value: 1 µA LPM3 current with 32-kHz crystal enables >5-year CR2032 battery life; calibrated DCO ensures accurate UART timing for RF module synchronization. | Use Scenario: DIN-rail mounted industrial node measuring thermistor and RTD inputs across 8 channels, logging data to local EEPROM and reporting via RS-485. IC Role / Device Role / Timing Role: Analog front-end processor with 12-channel ADC autoscan, internal reference, and SPI interface to isolated RS-485 transceiver. Use Value: VREF+/VREF− pins enable precise ratiometric measurement; 1KB RAM buffers 256 samples before transmission, reducing host polling frequency. |
| Smart Meter Sensor Interface | Portable Gas Detector |
Use Scenario: Sub-metering device interfacing with current transformers and shunt resistors to compute real/reactive power in residential smart meters. IC Role / Device Role / Timing Role: High-precision ADC controller with synchronized sampling across multiple analog inputs; uses Timer_A3 for precise phase alignment. Use Value: 10-bit ADC with internal 1.5-V reference and 200-ksps rate supports Class 0.5 metering accuracy; low EMI design meets IEC 62053-21 requirements. | Use Scenario: Handheld toxic gas detector using electrochemical sensors requiring low-noise analog conditioning and battery-efficient operation. IC Role / Device Role / Timing Role: Signal conditioner and alarm manager - acquires sensor voltage, applies offset/gain correction, triggers buzzer/LED on threshold breach. Use Value: Schmitt-trigger inputs on P1–P4 reject noise from long sensor cables; 0.1 µA LPM4 preserves battery during standby between 30-second self-tests. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2544IDA38 | 16KB+256B flash, 512B RAM, identical peripherals and pinout | Lower memory capacity limits firmware complexity - suitable for simpler sensor logic without protocol stacks | Select when application firmware fits within 16KB flash and requires identical I/O count and peripheral set |
| MSP430FR2476TRHBR | Ferroelectric RAM (64KB FRAM), no flash erase cycles, higher max clock (16 MHz), QFN-40 package | FRAM enables faster write-intensive logging; different pinout and no Spy-Bi-Wire (uses JTAG only) | Choose for high-cycle data logging or where flash endurance is a concern - requires PCB redesign due to QFN-40 and pin mapping changes |
Compared with MSP430G2544IDA38, the MSP430G2744IDA38 provides double flash and RAM for richer firmware; versus MSP430FR2476TRHBR, it offers proven Spy-Bi-Wire debug compatibility and TSSOP packaging but lacks FRAM endurance - making it optimal for cost-sensitive, field-deployed sensor nodes with moderate code size.
Availability
MSP430G2744IDA38 is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial temperature monitors, smart meter interfaces, and portable gas detectors requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2744IDA38 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 for industrial, automotive, and consumer markets.
The MSP430G2x44 product line was designed specifically for ultra-low-power mixed-signal applications - emphasizing rapid wake-up, integrated analog peripherals, and minimal external components in space-constrained battery-operated devices.
FAQ
What is the maximum operating frequency of the MSP430G2744IDA38?
The MSP430G2744IDA38 supports a maximum system clock (MCLK) frequency of 16 MHz when VCC ≥ 3.3 V and duty cycle is 50% ±10%. This is achieved using the factory-calibrated DCO. The device also supports lower-frequency operation down to DC, with guaranteed performance across the full 1.8 V to 3.6 V supply range. All timing specifications in the datasheet assume this 16-MHz maximum clock configuration.
Does the MSP430G2744IDA38 support hardware UART with automatic baud-rate detection?
Yes, the MSP430G2744IDA38's USCI_A0 module supports LIN-compliant UART mode with automatic baud-rate detection. This feature allows the MSP430G2744IDA38 to synchronize to incoming LIN header bytes without prior knowledge of the bus bit rate - essential for interoperability in automotive and industrial sensor networks where master node timing may vary.
How many analog input channels does the MSP430G2744IDA38 ADC support?
The MSP430G2744IDA38 integrates a 10-bit ADC10 module with 12 selectable analog input channels (A0–A15), including dedicated pins for VREF+ and VREF−. Channel mapping covers P1.x, P2.x, P3.x, and P4.x ports - for example, A0 is on P2.0, A15 is on P4.6 - enabling flexible sensor routing across all four I/O ports without external multiplexers.
What debug interface does the MSP430G2744IDA38 use, and what pins are required?
The MSP430G2744IDA38 uses the two-wire Spy-Bi-Wire (SBW) interface for programming and debugging. Only two pins are required: TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6). This eliminates the need for a full 4-pin JTAG header, reducing PCB area and simplifying production programming - a key advantage for compact sensor modules.
Is the MSP430G2744IDA38 pin-compatible with other members of the MSP430G2x44 family?
Yes, the MSP430G2744IDA38 is pin-compatible with the MSP430G2544IDA38 and MSP430G2444IDA38 in the 38-pin TSSOP (DA) package. All share identical pin functions, electrical characteristics, and footprint - enabling hardware reuse across variants. Firmware must be recompiled to match respective flash/RAM sizes, but no PCB change is needed when upgrading from G2544/G2444 to MSP430G2744IDA38.
MSP430G2744IDA38 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- Series:
- MSP430G2xx
- 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, WDT
- Number of I/O:
- 32
- Program Memory Size:
- 32KB (32K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 1K x 8
- Voltage - Supply (Vcc/Vdd):
- 1.8V ~ 3.6V
- Data Converters:
- A/D 12x10b
- Oscillator Type:
- Internal
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
MSP430G2744IDA38 FAQ
1.How can I place an order for MSP430G2744IDA38 through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2744IDA38 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 MSP430G2744IDA38 reliable?
The price and inventory of MSP430G2744IDA38 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2744IDA38 is usually 5 days.
3.What payment methods are accepted for MSP430G2744IDA38?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2744IDA38 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2744IDA38?
MSP430G2744IDA38 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2744IDA38 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 MSP430G2744IDA38?
For technical support, including MSP430G2744IDA38 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2744IDA38 requirements.
6.How does Aetrix verify that MSP430G2744IDA38 is sourced from the original manufacturer or authorized distributors?
All MSP430G2744IDA38 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 MSP430G2744IDA38 meets industry standards.
7.What is the process for return or replacement of MSP430G2744IDA38?
All MSP430G2744IDA38 units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2744IDA38, 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 MSP430G2744IDA38 part is unused and in its original packaging.
Return procedure for MSP430G2744IDA38:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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