My Inquiry
My Account
Texas Instruments MSP430G2444IDA38R
- Part No.:
- MSP430G2444IDA38R
- Manufacturer:
- Texas Instruments
- Category:
- Microcontrollers
- Package:
- 38-TSSOP (0.240", 6.10mm Width)
- Datasheet:
-
MSP430G2444IDA38R.pdf
- Description:
- IC MCU 16BIT 8KB FLASH 38TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,056
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
MSP430G2444IDA38R from Texas Instruments is an ultra-low-power 16-bit RISC mixed-signal microcontroller in a 38-pin TSSOP package, featuring 8KB flash, 512B 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 requiring fast wake-up (<1 µs), analog signal acquisition, and serial communication.
For engineers reviewing the MSP430G2444IDA38R datasheet, MSP430G2444IDA38R pinout, MSP430G2444IDA38R application, or MSP430G2444IDA38R equivalent, key selection criteria include its 8KB flash capacity, 32 I/O pins with analog input capability (A0–A7, A12–A15), calibrated DCO up to 16 MHz, ultra-low standby current (1 µA), and integrated brownout detection - all critical for energy-constrained embedded measurement systems.
Technical Context
The MSP430G2444IDA38R implements a 16-bit CPU with constant generators and five low-power modes optimized for extended battery life. Its clock system integrates a digitally controlled oscillator (DCO) with four factory-calibrated frequencies (1/8/12/16 MHz), LFXT1 crystal oscillator support (32 kHz or HF up to 16 MHz), and internal VLO, enabling flexible timing across active and LPM3/LPM4 states.
Peripherals include a 12-channel 10-bit ADC with autoscan and data transfer controller (DTC), two independent 16-bit timers with three capture/compare registers each, and dual USCI modules - one supporting enhanced UART with LIN auto-baud detection and IrDA, the other configurable for SPI or I²C - all accessible via dedicated I/O pins mapped to Ports P1–P4.
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 |
| Memory | 8KB + 256B flash / 512B RAM; sufficient for compact firmware with ADC data buffering and protocol stacks |
| ADC Resolution & Speed | 10-bit, 200-ksps with sample-and-hold and DTC; supports continuous analog monitoring without CPU intervention |
| Power Consumption | Active mode: 270 µA at 1 MHz/2.2 V; Standby: 1 µA; Off mode (RAM retention): 0.1 µA - ideal for intermittent sensing |
| Operating Voltage | 1.8 V to 3.6 V; compatible with single-cell Li-ion, LiFePO₄, or dual-AA alkaline supplies |
| Wake-up Time | <1 µs from standby (LPM3) to active mode; preserves responsiveness in event-driven sensor applications |
| I/O Count | 32 GPIO pins with Schmitt-trigger inputs, pullup/pulldown resistors, and interrupt capability per pin |
Pinout & Package
Package: 38-pin TSSOP (DA), body size 12.5 mm × 6.2 mm, lead pitch 0.65 mm, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| P1.0/TACLK/ADC10CLK | Timer_A clock input / ADC conversion clock | Enables synchronous sampling and timer-triggered conversions; supports external clock source for precise timing control |
| P2.3/TA1/A3/VREF− | Analog input A3 / ADC negative reference | Provides differential ADC measurement capability when paired with VREF+ on P2.4; usable as general-purpose analog input otherwise |
| P3.1/UCB0SIMO/UCB0SDA | USCI_B0 SPI master-out/slave-in / I²C SDA | Dual-function pin reduces PCB routing complexity for either SPI sensor interfaces or I²C peripheral expansion |
| RST/NMI/SBWTDIO | Reset / non-maskable interrupt / Spy-Bi-Wire data I/O | Single-pin debug interface enables in-system programming and debugging without dedicated JTAG header |
| XIN/P2.6 & XOUT/P2.7 | LFXT1 crystal oscillator input/output | Supports 32-kHz watch crystal for accurate real-time clock or high-frequency crystal up to 16 MHz for system timing |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low-power operation | 0.1 µA off-mode current with RAM retention extends shelf life and enables instant-on functionality after long sleep intervals |
| Integrated ADC with DTC | Automated 12-channel scan and memory-to-memory data transfer eliminates CPU overhead during analog acquisition bursts |
| Calibrated DCO | Four factory-trimmed frequencies (1/8/12/16 MHz) enable precise clocking without external crystal in cost-sensitive designs |
| USCI_A0 with LIN support | Hardware-assisted automatic baud-rate detection simplifies integration into automotive or industrial LIN bus networks |
| On-chip BSL | UART-based bootloader allows field firmware updates via standard serial interface - no programmer required |
Applications
| Wireless Sensor Node | Portable Medical Monitor |
|---|---|
Use Scenario: Battery-powered environmental sensor collecting temperature, humidity, and light data at 10-second intervals, transmitting via UART to BLE module. IC Role / Device Role / Timing Role: Central controller managing ADC sampling, data preprocessing, USCI_A0 UART transmission, and ultra-low-power sleep scheduling. Use Value: 1 µA standby current and sub-1 µs wake-up minimize average power, enabling >2-year operation on CR2032 coin cell. |
Use Scenario: Handheld pulse oximeter acquiring analog photodiode signals, computing SpO₂, and displaying results on segment LCD. IC Role / Device Role / Timing Role: Mixed-signal processor executing ADC conversions, digital filtering, and driving LCD segments via port mapping. Use Value: Integrated 10-bit ADC with internal reference and 12-channel autoscan eliminate external precision references and multiplexers. |
| Industrial Control Interface | Smart Meter Front-End |
Use Scenario: DIN-rail mounted PLC I/O module reading 8-channel 4–20 mA current loops and reporting status over RS-485. IC Role / Device Role / Timing Role: Signal conditioner and protocol translator using USCI_B0 in SPI mode for isolated ADC interfacing and UART for RS-485 framing. Use Value: 32 GPIO with programmable pullups/pulldowns simplify direct connection to current-loop receivers and optocoupler drivers. |
Use Scenario: Electricity meter measuring voltage/current waveforms via shunt/sensor, calculating RMS and harmonics, storing logs in flash. IC Role / Device Role / Timing Role: High-accuracy metrology engine performing synchronized dual-channel sampling using ADC10 and Timer_A triggers. Use Value: 200-ksps ADC with DTC enables continuous waveform capture into RAM buffers without CPU interruption - essential for harmonic analysis. |
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 |
|---|---|---|---|
| MSP430G2544IDA38 | 16KB flash / 512B RAM; identical peripherals and pinout | Supports larger firmware images (e.g., full Modbus RTU stack + diagnostics) | Select when firmware exceeds 8KB or future scalability is required; same PCB layout and driver compatibility |
| MSP430G2452IDA38 | 8KB flash / 256B RAM; no Timer_B or USCI_B0; 16 I/O pins | Suitable for simpler sensor endpoints with basic UART and minimal analog processing | Choose for lowest-cost entry-level implementation where dual timers and I²C/SPI are unnecessary |
Compared with MSP430G2544IDA38 and MSP430G2452IDA38, the MSP430G2444IDA38R offers optimal balance of memory, peripheral richness (dual USCI, Timer_B), and power efficiency for mid-tier sensor nodes - avoiding over-specification while retaining upgrade path to G2544.
Availability
MSP430G2444IDA38R is available at Aetrix Electronics and suitable for wireless sensor nodes, portable medical monitors, industrial control interfaces, smart meter front-ends, and battery-powered IoT edge devices requiring stable component supply and long-term manufacturability.
Supply support for MSP430G2444IDA38R 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 decades of expertise in ultra-low-power design.
The MSP430G2x44 product line was engineered specifically for cost-sensitive, battery-operated measurement and sensing applications demanding sub-µA standby current, integrated analog peripherals, and robust firmware security via programmable code protection fuse.
FAQ
What is the maximum operating frequency of the MSP430G2444IDA38R?
The MSP430G2444IDA38R supports a maximum MCLK frequency of 16 MHz when VCC ≥ 3.3 V, enabled by its factory-calibrated DCO. At lower supply voltages (e.g., 2.7 V), the guaranteed maximum is 12 MHz, and at 1.8 V it is 4.15 MHz - all specified in the Recommended Operating Conditions table of the SLAS892C datasheet.
Does the MSP430G2444IDA38R support hardware UART with automatic baud-rate detection?
Yes, the MSP430G2444IDA38R's USCI_A0 module provides enhanced UART mode with built-in LIN auto-baud detection, allowing reliable communication initialization without prior knowledge of the host's baud rate - a feature confirmed in Section 5.25 of the SLAS892C datasheet.
How many analog input channels does the MSP430G2444IDA38R ADC support?
The MSP430G2444IDA38R integrates a 10-bit ADC10 with 12 selectable analog input channels: A0–A7 (on P2.0, P2.1, P2.2, P2.3, P2.4, P3.6, P3.7) and A12–A15 (on P4.3, P4.4, P4.5, P4.6), as documented in the "ADC10" section and Table 4-1 of the SLAS892C datasheet.
Is the MSP430G2444IDA38R pin-compatible with other MSP430G2x44 variants in the DA package?
Yes, all MSP430G2x44 devices in the 38-pin TSSOP (DA) package - including MSP430G2444IDA38, MSP430G2544IDA38, and MSP430G2744IDA38 - share identical pinouts and electrical characteristics, enabling drop-in replacement based on flash/RAM requirements without PCB changes.
What debug interface does the MSP430G2444IDA38R use?
The MSP430G2444IDA38R uses the two-wire Spy-Bi-Wire (SBW) interface via TEST/SBWTCK (Pin 1) and RST/NMI/SBWTDIO (Pin 6) for programming and debugging - eliminating the need for a full 4-wire JTAG header and reducing board space and connector cost.
MSP430G2444IDA38R Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Package/Case:
- 38-TSSOP (0.240", 6.10mm Width)
- 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:
- 8KB (8K 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:
MSP430G2444IDA38R FAQ
1.How can I place an order for MSP430G2444IDA38R through Aetrix?
Please submit a Request for Quotation (RFQ) for MSP430G2444IDA38R 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 MSP430G2444IDA38R reliable?
The price and inventory of MSP430G2444IDA38R are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MSP430G2444IDA38R is usually 5 days.
3.What payment methods are accepted for MSP430G2444IDA38R?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MSP430G2444IDA38R transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MSP430G2444IDA38R?
MSP430G2444IDA38R orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MSP430G2444IDA38R 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 MSP430G2444IDA38R?
For technical support, including MSP430G2444IDA38R datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MSP430G2444IDA38R requirements.
6.How does Aetrix verify that MSP430G2444IDA38R is sourced from the original manufacturer or authorized distributors?
All MSP430G2444IDA38R 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 MSP430G2444IDA38R meets industry standards.
7.What is the process for return or replacement of MSP430G2444IDA38R?
All MSP430G2444IDA38R units undergo pre-shipment inspection (PSI). If there is an issue with MSP430G2444IDA38R, 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 MSP430G2444IDA38R part is unused and in its original packaging.
Return procedure for MSP430G2444IDA38R:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
MSP430G2444IDA38R 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…
