My Inquiry
My Account
Texas Instruments MSP430G2544IRHA40T
- Part No.:
- MSP430G2544IRHA40T
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 40-VFQFN Exposed Pad
- Datasheet:
-
MSP430G2544IRHA40T.pdf
- Description:
- IC MCU 16BIT 16KB FLASH 40VQFN
- Quantity:
- Payment:
- Shipping:
Inventory:246
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430G2544IRHA40T from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller featuring 16KB+256B flash, 512B RAM, a 10-bit 200-ksps ADC with internal reference and data transfer controller, dual 16-bit timers (Timer_A3 and Timer_B3), and a universal serial communication interface (USCI) supporting UART/LIN, IrDA, SPI, and I²C. It operates from 1.8 V to 3.6 V and targets battery-powered sensor systems and RF front ends.
For engineers reviewing the MSP430G2544IRHA40T datasheet, MSP430G2544IRHA40T pinout, MSP430G2544IRHA40T application, or MSP430G2544IRHA40T equivalent, key selection criteria include its 40-pin QFN (RHA) package, calibrated DCO up to 16 MHz, sub-1 µs wake-up from standby mode, and integrated brownout detector with programmable code protection.
Technical Context
The MSP430G2544IRHA40T implements a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (1/8/12/16 MHz), supports both low-frequency (32-kHz crystal or VLO) and high-frequency (up to 16-MHz crystal/resonator) clock sources, and integrates a 12-channel ADC10 with autoscan and DTC for autonomous analog acquisition without CPU intervention.
Its USCI module provides dual independent channels: USCI_A0 supports enhanced UART with automatic baud-rate detection (LIN-compliant), IrDA encoding/decoding, and synchronous SPI; USCI_B0 supports SPI and I²C master/slave modes. The device uses Spy-Bi-Wire for on-chip emulation and programming, eliminating need for external JTAG hardware.
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 control |
| Flash / RAM | 16KB + 256B flash memory and 512B RAM; sufficient for firmware with sensor processing, communication stacks, and calibration tables |
| ADC Performance | 10-bit, 200-ksps SAR ADC with 12 input channels, internal reference, sample-and-hold, autoscan, and DTC; supports burst acquisition without CPU overhead |
| Power Consumption | Active mode: 270 µA at 1 MHz/2.2 V; Standby mode: 1 µA; Off mode (RAM retention): 0.1 µA - enables multi-year battery life in coin-cell applications |
| Clock System | Calibrated DCO (1/8/12/16 MHz), LFXT1 (32-kHz crystal), HFXT1 (up to 16-MHz crystal), VLO, and external resistor option; provides flexible, low-power timing across operating modes |
| Low-Power Wake-Up | Ultra-fast wake-up from LPM3/LPM4 in <1 µs via DCO; critical for duty-cycled sensing where latency directly impacts system responsiveness |
| I/O Count | 32 general-purpose digital I/O pins with configurable pullup/pulldown, Schmitt-trigger inputs, and interrupt capability per pin |
Pinout & Package
VQFN-40 (RHA) package: 6 mm × 6 mm, 0.5-mm pitch, thermally enhanced exposed pad connected to DVSS.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK | Timer_A clock input / ADC conversion clock | Enables synchronized timer-triggered ADC sampling; supports precise timing control of analog acquisition |
| P2.3/TA1/A3/VREF− | Analog input A3 / ADC negative reference | Allows differential ADC measurements or external reference configuration; improves noise immunity in noisy environments |
| P2.4/TA2/A4/VREF+ | Analog input A4 / ADC positive reference | Supports ratiometric sensing or external precision reference; essential for high-accuracy sensor signal conditioning |
| P3.1/UCB0SIMO/UCB0SDA | USCI_B0 SPI MOSI / I²C SDA | Dual-function pin reduces PCB routing complexity when interfacing with both SPI and I²C peripherals |
| RST/NMI/SBWTDIO | Reset / nonmaskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug interface eliminates dedicated JTAG header; simplifies production programming and field updates |
| TEST/SBWTCK | Spy-Bi-Wire test clock input | Enables in-system programming and debugging using only two wires (TEST + SBWTDIO), saving board space and BOM cost |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with RAM retention enables decade-scale battery life in energy-harvesting and remote sensor nodes |
| Integrated ADC with DTC | Autonomous 12-channel data transfer controller eliminates CPU polling; reduces active time and extends sleep duration |
| Calibrated DCO with fast wake-up | Factory-trimmed 16-MHz DCO achieves <1 µs wake-up from LPM4 - critical for responsive event-driven sensing |
| USCI dual-channel flexibility | Independent USCI_A0 (UART/LIN/IrDA/SPI) and USCI_B0 (SPI/I²C) support concurrent wired communication protocols |
| Programmable code security | On-chip fuse-based protection prevents unauthorized readout of flash contents - required for firmware IP protection |
Applications
| Wireless Sensor Node | Industrial Process Monitor |
|---|---|
Use Scenario: Battery-powered temperature/humidity node transmitting data via sub-GHz RF transceiver. IC Role / Device Role / Timing Role: Main controller executing sensor readout, data preprocessing, low-power scheduling, and SPI communication with RF IC. Use Value: 0.1 µA off-mode current and sub-1 µs wake-up minimize idle power loss; 10-bit ADC with internal reference ensures stable readings across voltage and temperature drift. |
Use Scenario: DIN-rail mounted analog input module acquiring 4–20 mA loop signals and reporting via RS-485. IC Role / Device Role / Timing Role: Signal conditioner and protocol handler managing isolated ADC sampling, linearization, and Modbus RTU framing. Use Value: 12-channel ADC with autoscan supports multi-input scanning; USCI_A0's LIN-capable UART simplifies integration with legacy industrial buses. |
| Portable Medical Device | Smart Meter Front End |
Use Scenario: Handheld pulse oximeter with LED drivers, photodiode amplifiers, and Bluetooth LE interface. IC Role / Device Role / Timing Role: Analog front-end controller performing synchronized LED timing, ADC capture, and digital filtering before BLE transmission. Use Value: Dual 16-bit timers (Timer_A3/Timer_B3) enable precise LED pulse generation and ADC trigger alignment; low-voltage operation (1.8 V) extends single-cell Li-ion runtime. |
Use Scenario: Electricity meter measuring voltage/current waveforms and computing RMS, harmonics, and energy totals. IC Role / Device Role / Timing Role: High-precision metrology co-processor handling oversampled ADC data, FFT computation, and tamper-detection logic. Use Value: 200-ksps ADC with DTC offloads CPU during continuous waveform capture; brownout detector ensures reliable shutdown during grid sags. |
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 |
|---|---|---|---|
| MSP430G2444IRHA40T | 8KB+256B flash, same 512B RAM, identical peripherals and pinout | Lower firmware capacity limits complex algorithms or protocol stacks | Select when application firmware fits within 8KB and cost sensitivity outweighs future scalability needs |
| MSP430G2744IRHA40T | 32KB+256B flash, 1KB RAM, otherwise identical architecture, peripherals, and pinout | Supports larger firmware images, bootloader + application partitioning, and advanced encryption libraries | Select when firmware size exceeds 16KB or long-term feature expansion is anticipated |
Compared with MSP430G2444IRHA40T, the MSP430G2544IRHA40T delivers double flash capacity without layout or driver changes; compared with MSP430G2744IRHA40T, it offers optimal balance of code space, RAM, and unit cost for mid-complexity sensor edge nodes.
Availability
MSP430G2544IRHA40T is available at Aetrix Electronics and suitable for wireless sensor nodes, industrial process monitors, portable medical devices, and smart meter front ends requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2544IRHA40T 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 MSP430G2x44 product line was engineered specifically for ultra-low-power, cost-sensitive, battery-operated measurement and sensing applications - emphasizing rapid wake-up, integrated analog peripherals, and minimal external components.
FAQ
What is the maximum operating frequency of the MSP430G2544IRHA40T?
The MSP430G2544IRHA40T supports a maximum MCLK frequency of 16 MHz when VCC ≥ 3.3 V and duty cycle is 50% ±10%. This is achieved using the factory-calibrated DCO or an external HF crystal up to 16 MHz. At lower supply voltages (e.g., 1.8 V), the maximum safe frequency drops to 4.15 MHz per the operating area specification in SLAS892C.
Does the MSP430G2544IRHA40T support in-system programming without external voltage?
Yes, the MSP430G2544IRHA40T supports serial onboard programming with no external programming voltage required. Its integrated bootstrap loader (BSL) allows firmware updates via UART or SPI using only the standard VCC supply (1.8–3.6 V), enabling field upgrades and production programming through existing communication interfaces.
How many ADC input channels does the MSP430G2544IRHA40T have, and what reference options are available?
The MSP430G2544IRHA40T features a 10-bit ADC10 with 12 selectable analog input channels (A0–A7, A12–A15). Reference options include internal 1.5-V/2.5-V references, external reference applied to VREF+/VREF− pins, or AVCC as reference - all configurable via ADC10CTL0 register bits.
Is the MSP430G2544IRHA40T pin-compatible with other devices in the G2x44 family?
Yes, the MSP430G2544IRHA40T in the 40-pin QFN (RHA) package shares identical pinout, electrical characteristics, and peripheral mapping with MSP430G2444IRHA40T and MSP430G2744IRHA40T - enabling direct substitution in hardware designs based solely on flash/RAM requirements.
What debug interface does the MSP430G2544IRHA40T use, and how many pins are required?
The MSP430G2544IRHA40T uses the two-wire Spy-Bi-Wire (SBW) interface for debugging and programming, requiring only TEST/SBWTCK and RST/NMI/SBWTDIO pins. This eliminates the need for a full 4-wire JTAG header, reducing PCB footprint and simplifying test fixture design while maintaining full emulation capability.
MSP430G2544IRHA40T 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:
- 16KB (16K x 8)
- Program Memory Type:
- FLASH
- EEPROM Size:
- -
- RAM Size:
- 512 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:
MSP430G2544IRHA40T FAQ
1.How can I place an order for MSP430G2544IRHA40T through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2544IRHA40T 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 MSP430G2544IRHA40T reliable?
The price and inventory of MSP430G2544IRHA40T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2544IRHA40T is usually 5 days.
3.What payment methods are accepted for MSP430G2544IRHA40T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2544IRHA40T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2544IRHA40T?
MSP430G2544IRHA40T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2544IRHA40T 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 MSP430G2544IRHA40T?
For technical support, including MSP430G2544IRHA40T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2544IRHA40T requirements.
6.How does Aetrix verify that MSP430G2544IRHA40T is sourced from the original manufacturer or authorized distributors?
All MSP430G2544IRHA40T 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 MSP430G2544IRHA40T meets industry standards.
7.What is the process for return or replacement of MSP430G2544IRHA40T?
All MSP430G2544IRHA40T units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2544IRHA40T, 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 MSP430G2544IRHA40T part is unused and in its original packaging.
Return procedure for MSP430G2544IRHA40T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430G2544IRHA40T Tags
-
ATTINY4-TSHR
Microchip Technology
-
ATTINY10-TSHR
Microchip Technology
-
ATTINY10-TS8R
Microchip Technology
-
ATTINY202-SSNR
Microchip Technology
-
ATTINY202-SSFR
Microchip Technology
-
ATTINY402-SSNR
Microchip Technology
-
PIC16F15213T-I/MF
Microchip Technology
-
PIC16F15213-E/MF
Microchip Technology
-
PIC10F200T-I/OT
Microchip Technology
-
ATTINY412-SSNR
Microchip Technology
-
PIC10F202T-I/OT
Microchip Technology
-
ATTINY404-SSNR
Microchip Technology
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
