LM3S2671-IQR50-A0T Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments LM3S2671-IQR50-A0T is a 32-bit ARM Cortex-M3 microcontroller with integrated ADC, JTAG boundary scan, and fixed-point arithmetic in a 64-pin LQFP package. It offers efficient embedded control processing for industrial and motor-drive applications. Available lead-free with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 64
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S2671-IQR50-A0T Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 85.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LM3S2671-IQR50-A0T?
- 32-bit ARM Cortex-M3 CPU core delivering deterministic fixed-point processing for real-time control applications
- Integrated ADC enabling direct analog sensor sampling without external conversion circuitry
- JTAG boundary scan support simplifying board-level testing and in-system programming
- 64-pin LQFP package providing ample I/O for industrial control, communication, and sensor interfaces
- Lead-free, RoHS-compliant construction for industrial-grade embedded system deployments
What is LM3S2671-IQR50-A0T used for?
The LM3S2671-IQR50-A0T is suited for industrial motion control, motor drive feedback loops, and embedded automation controllers requiring a 32-bit ARM Cortex-M3 core with onboard analog signal acquisition. Its integrated ADC channels allow direct connection to current sense resistors, position sensors, and temperature transducers without external ADC ICs. The 64-pin LQFP package provides enough pins for simultaneously driving communication buses, control outputs, and multiple sensor inputs in compact industrial modules.
What are the specifications of LM3S2671-IQR50-A0T?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M3 |
| Clock Frequency-Max | 0.032MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| Format | FIXED POINT |
| Integrated Cache | YES |
| JESD-30 Code | S-PQFP-G64 |
| JESD-609 Code | e3 |
| Low Power Mode | YES |
| Number of DMA Channels | 1 |
| Number of I/O Lines | 33 |
| Number of Serial I/Os | 4 |
| Number of Timers | 4 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP64,.47SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 32768 |
| ROM (words) | 131072 |
| ROM Programmability | FLASH |
| Speed | 50MHz |
| Supply Voltage-Max | 2.75V |
| Supply Voltage-Min | 2.5V |
| Supply Voltage-Nom | 2.5V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | MATTE TIN |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.31.00.01 |
| Country of Origin | Philippines |
Where can I find the LM3S2671-IQR50-A0T datasheet?
LM3S2671-IQR50-A0T Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S2671-IQR50-A0T?
Compatible alternatives and drop-in replacements for LM3S2671-IQR50-A0T:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 50MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 50MHz, CMOS, PQFP64
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 50MHz, CMOS, PQFP64
Frequently Asked Questions
What CPU architecture does the LM3S2671-IQR50-A0T use, and what processing format does it support?
The LM3S2671-IQR50-A0T uses a 32-bit ARM Cortex-M3 CPU core and supports fixed-point arithmetic. The Cortex-M3 architecture provides deterministic interrupt latency, a Thumb-2 instruction set for code density, and hardware divide, making it efficient for real-time motor control, digital filtering, and embedded automation tasks requiring predictable cycle counts.
Does the LM3S2671-IQR50-A0T include an ADC, and how does this benefit motor control designs?
Yes, the LM3S2671-IQR50-A0T integrates an onboard ADC. In motor control applications, the ADC directly digitizes current sense and back-EMF signals without requiring an external ADC IC, reducing BOM cost and PCB area. This integration allows the Cortex-M3 core to implement closed-loop current and speed control loops with ADC sampling synchronized to the PWM switching period.
What package does the LM3S2671-IQR50-A0T come in, and how many I/O pins does it provide?
The LM3S2671-IQR50-A0T is housed in a 64-pin LQFP (Low-Profile Quad Flat Package) with a 0.5 mm pin pitch. The 64-pin count provides sufficient I/O for running multiple serial communication interfaces (UART, SPI, I2C), multiple PWM outputs for motor phases, ADC input channels, and general-purpose GPIO for digital control in industrial embedded designs.
What is the role of JTAG boundary scan in the LM3S2671-IQR50-A0T, and how does it help during manufacturing?
The JTAG boundary scan capability allows automated board-level interconnect testing using industry-standard JTAG testers. During PCB manufacturing, boundary scan can verify that all 64 LQFP pins are properly soldered and that bus interconnects between the MCU and memory or peripheral ICs are intact — catching solder bridges and open joints without powering up the full circuit.
For an industrial motor drive application, how does the LM3S2671-IQR50-A0T compare to a smaller 32-pin Cortex-M0 device?
The LM3S2671-IQR50-A0T's Cortex-M3 core provides hardware divide and multiply-accumulate instructions not available on Cortex-M0, enabling faster PID loop execution at the same clock frequency. The 64-pin LQFP also offers more GPIO and peripheral channels than a 32-pin device, supporting 3-phase motor PWM outputs, current sense ADC inputs, encoder interfaces, and a RS-485 communication port simultaneously.
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Why Buy from FindMyChip
About Texas Instruments
Texas Instruments (TI) is a global semiconductor company headquartered in Dallas, Texas. TI designs and manufactures analog and embedded processing chips used in industrial, automotive, consumer, communications, and enterprise systems.
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