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Texas Instruments MSP430G2744IRHA40R
- Part No.:
- MSP430G2744IRHA40R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430G2744IRHA40R.pdf
- Description:
- IC MCU 16BIT 32KB FLASH 40VQFN
- Quantity:
- Payment:
- Shipping:
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Product details
Overview
MSP430G2744IRHA40R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller with 32KB+256B flash, 1KB RAM, 10-bit 200-ksps ADC with internal reference and data transfer controller, dual 16-bit timers (Timer_A3 and Timer_B3), USCI supporting UART/LIN/IrDA/SPI/I²C, and integrated DCO with calibrated frequencies up to 16 MHz - deployed in battery-powered sensor nodes and RF front-end signal conditioning.
For engineers reviewing the MSP430G2744IRHA40R datasheet, MSP430G2744IRHA40R pinout, MSP430G2744IRHA40R application, or MSP430G2744IRHA40R equivalent, key selection criteria include active-mode current at 1 MHz (270 µA @ 2.2 V), standby current (1 µA), 40-pin QFN (RHA) package footprint, brownout detection, and Spy-Bi-Wire debug interface compatibility.
Technical Context
The MSP430G2744IRHA40R implements a 16-bit CPU with constant generators and five low-power modes (LPM0–LPM4), enabling sub-1-µs wake-up from LPM3/LPM4 using ACLK or DCO. Its clock system integrates DCO (calibrated at 1/8/12/16 MHz), LFXT1 (32-kHz crystal), VLO, and external digital sources - all selectable via BCSCTL registers.
Peripherals are tightly coupled to power management: ADC10 uses autoscan and DTC for autonomous conversions without CPU intervention; USCI_A0 supports LIN auto-baud detection and IrDA encoding; Timer_B3 includes shadow registers and TBOUTH for synchronized output control - all operating down to 1.8 V supply.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Core Architecture | 16-bit RISC CPU with 62.5-ns instruction cycle; enables high code efficiency in memory-constrained embedded firmware |
| Flash / RAM | 32KB + 256B flash memory and 1KB RAM - sufficient for standalone sensor firmware with ADC data buffering and protocol stacks |
| ADC Performance | 10-bit, 200-ksps SAR ADC with internal reference, autoscan, and DTC - supports continuous multi-channel sampling without CPU overhead |
| Power Consumption | Active mode: 270 µA @ 1 MHz / 2.2 V; Standby (LPM3): 1 µA; Off mode (RAM retention): 0.1 µA - extends coin-cell battery life to years |
| Clock Sources | DCO (1/8/12/16 MHz calibrated), 32-kHz crystal (LFXT1), internal VLO, external resistor (ROSC), and digital clock input - enables flexible timing across sleep/wake cycles |
| USCI Interfaces | USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C) - supports dual-protocol communication for sensor-to-host and sensor-to-peripheral links |
| Package & Pins | 40-pin QFN (RHA), 6 mm × 6 mm, 32 I/O pins with Schmitt-trigger inputs, pullup/pulldown resistors, and 12 ADC channels - optimized for compact PCB layout |
Pinout & Package
VQFN-40 (RHA) package: 6 mm × 6 mm body, 0.5 mm pitch, exposed thermal pad (to be connected to DVSS). Pin 1 marked by top-side dot; pin numbering follows standard QFN counter-clockwise sequence starting from top-left corner.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK | Timer_A clock input / ADC conversion clock | Enables synchronous timer-triggered ADC sampling; supports precise timing-critical acquisition |
| P2.3/TA1/A3/VREF− | Analog input A3 / ADC negative reference | Allows differential ADC measurements or external reference biasing for improved noise immunity |
| P2.4/TA2/A4/VREF+ | Analog input A4 / ADC positive reference | Supports ratiometric sensing or external precision reference connection |
| P3.1/UCB0SIMO/UCB0SDA | USCI_B0 SPI master-out / I²C SDA | Dual-function pin reduces pin count for systems requiring both SPI sensors and I²C peripherals |
| RST/NMI/SBWTDIO | Reset / nonmaskable interrupt / Spy-Bi-Wire I/O | Single-pin debug interface eliminates need for dedicated JTAG header; supports in-system programming |
| TEST/SBWTCK | Spy-Bi-Wire test clock | Required for programming and boundary-scan testing; must be pulled high during normal operation |
| QFN Thermal Pad | Exposed die attach pad | Must be soldered to DVSS plane for thermal dissipation and EMI reduction in high-noise environments |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | Sub-1-µs wake-up from LPM3/LPM4 and 0.1 µA off-mode current enable decade-scale battery life in remote sensors |
| Integrated ADC with DTC | Data Transfer Controller automates ADC result movement to RAM without CPU involvement - frees CPU for real-time processing |
| Calibrated DCO oscillator | Four factory-trimmed DCO frequencies (1/8/12/16 MHz) eliminate need for external crystal in cost-sensitive applications |
| USCI with LIN support | UART mode with automatic baud-rate detection meets ISO 17987 requirements for automotive sensor networks |
| Bootstrap Loader (BSL) | On-chip ROM-based serial bootloader enables field firmware updates via UART without external programmer |
| Schmitt-trigger I/O | Hysteresis (≥0.3 V) on all port pins improves noise immunity in industrial environments with long traces or EMI exposure |
Applications
| Wireless Sensor Node | Industrial Temperature Monitor |
|---|---|
Use Scenario: Battery-powered node collecting ambient temperature, humidity, and pressure data, then transmitting via Sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Central MCU managing sensor polling, ADC conversion, data preprocessing, and SPI-controlled RF transmission timing. Use Value: 1 µA standby current and 270 µA active current at 1 MHz allow >5-year operation on CR2032; DTC offloads CPU during burst sampling. |
Use Scenario: DIN-rail mounted module measuring thermistor/RTD signals in HVAC control panels with 85°C ambient rating. IC Role / Device Role / Timing Role: Signal conditioner and protocol gateway converting analog sensor outputs to Modbus RTU over RS-485. Use Value: 10-bit ADC with internal reference and VREF± pins enable stable ratiometric measurements; -40°C to +85°C operating range ensures reliability in uncontrolled enclosures. |
| RF Front-End Controller | Portable Medical Diagnostic Device |
Use Scenario: Stand-alone RF sensor front end capturing and digitizing analog IF signals from UWB radar or NFC readers before forwarding to host processor. IC Role / Device Role / Timing Role: Real-time ADC controller synchronizing sampling with RF clock; USCI_A0 handles packetized data streaming over UART. Use Value: 200-ksps ADC with autoscan supports multi-channel IF capture; 16-MHz DCO enables precise timing alignment with external RF clocks. |
Use Scenario: Handheld pulse oximeter acquiring photodiode signals, computing SpO₂, and displaying results on OLED via SPI. IC Role / Device Role / Timing Role: Mixed-signal controller performing analog front-end conditioning, ADC sampling, digital filtering, and display interface timing. Use Value: Integrated 10-bit ADC with internal reference eliminates external voltage reference IC; 1KB RAM accommodates FIR filter coefficients and waveform buffers. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar ultra-low-power mixed-signal microcontroller applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MSP430G2544IRHA40R | 16KB+256B flash, 512B RAM, identical peripheral set and pinout | Lower memory capacity limits firmware complexity; suitable for simpler sensor logic without protocol stacks | Select when firmware size <12 KB and cost sensitivity outweighs future scalability needs |
| MSP430FR2476TRHAT | Ferroelectric RAM (64KB FRAM), no flash erase/write wear-out, higher active current (120 µA/MHz) | Superior write endurance and faster write speed benefit data-logging applications; requires different power sequencing | Choose for high-cycle logging or where flash endurance is a concern; verify supply ramp timing per SLAU725 |
Compared with MSP430G2744IRHA40R, the G2544 offers identical I/O and peripherals at lower memory cost, while the FR2476 trades flash endurance and write latency for FRAM's infinite write cycles - making it preferable for frequent data storage but less optimal for ultra-low-quiescent battery life.
Availability
MSP430G2744IRHA40R is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial temperature monitors, RF front-end controllers, and portable medical diagnostic devices requiring stable component supply and long-term production continuity.
Supply support for MSP430G2744IRHA40R 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, serving industrial, automotive, and consumer markets with high-reliability silicon solutions.
The MSP430G2x44 product line delivers ultra-low-power mixed-signal microcontrollers targeting battery-operated measurement and sensing applications - emphasizing energy efficiency, integrated analog peripherals, and minimal external component count.
FAQ
What is the maximum operating frequency of the MSP430G2744IRHA40R?
The MSP430G2744IRHA40R supports a maximum MCLK frequency of 16 MHz when VCC ≥ 3.3 V and duty cycle is 50% ±10%. At 2.7 V, max frequency is 12 MHz; at 1.8 V, it drops to 4.15 MHz. These limits are defined by the DCO and system clock specifications in the SLAS892C datasheet Section 5.3.
Does the MSP430G2744IRHA40R support hardware debugging?
Yes, the MSP430G2744IRHA40R supports hardware debugging via Spy-Bi-Wire using pins RST/NMI/SBWTDIO (Pin 6) and TEST/SBWTCK (Pin 1). This two-wire interface enables full-speed emulation, breakpoint setting, and memory inspection without requiring a 4-wire JTAG header - reducing PCB footprint and BOM cost.
How many ADC channels does the MSP430G2744IRHA40R have, and what are their input ranges?
The MSP430G2744IRHA40R features 12 ADC input channels (A0–A7, A12–A15) with configurable reference sources. Input range is 0 V to VREF+ (internally 1.5 V or externally applied), or differential between VREF+ and VREF−. Absolute max input is AVCC, and inputs tolerate up to VCC + 0.3 V per absolute ratings table.
Can the MSP430G2744IRHA40R operate from a single 1.8-V supply?
Yes, the MSP430G2744IRHA40R operates across 1.8 V to 3.6 V. At 1.8 V, maximum system frequency is 4.15 MHz, and active-mode current is ~350 µA at that speed. Flash programming requires ≥2.2 V, but normal execution, ADC conversion, and peripheral operation are fully functional at 1.8 V.
Is the MSP430G2744IRHA40R pin-compatible with other MSP430G2x44 variants in the RHA package?
Yes, all MSP430G2x44 devices in the 40-pin QFN (RHA) package - including MSP430G2744IRHA40R, MSP430G2544IRHA40R, and MSP430G2444IRHA40R - share identical pinouts, electrical characteristics, and package dimensions. Firmware and PCB designs are interchangeable across these variants except for flash/RAM size limitations.
MSP430G2744IRHA40R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 40-VFQFN Exposed Pad
- Series:
- MSP430G2xx
- Packaging:
- Tape & Reel (TR)
- 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:
MSP430G2744IRHA40R FAQ
1.How can I place an order for MSP430G2744IRHA40R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2744IRHA40R 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 MSP430G2744IRHA40R reliable?
The price and inventory of MSP430G2744IRHA40R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2744IRHA40R is usually 5 days.
3.What payment methods are accepted for MSP430G2744IRHA40R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2744IRHA40R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2744IRHA40R?
MSP430G2744IRHA40R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2744IRHA40R 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 MSP430G2744IRHA40R?
For technical support, including MSP430G2744IRHA40R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2744IRHA40R requirements.
6.How does Aetrix verify that MSP430G2744IRHA40R is sourced from the original manufacturer or authorized distributors?
All MSP430G2744IRHA40R 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 MSP430G2744IRHA40R meets industry standards.
7.What is the process for return or replacement of MSP430G2744IRHA40R?
All MSP430G2744IRHA40R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2744IRHA40R, 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 MSP430G2744IRHA40R part is unused and in its original packaging.
Return procedure for MSP430G2744IRHA40R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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