LM3S1968-IQC50-A2T Texas Instruments Integrated Circuit (Other) In Stock
LM3S1968-IQC50-A2T is a 32-bit ARM Cortex-M3 microcontroller from Texas Instruments running up to 50 MHz with integrated ADC, boundary scan, and rich peripheral set in an LQFP package. It offers 256 KB flash and 64 KB SRAM for embedded control applications. Available with competitive pricing and fast worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 100
- Lifecycle
- NOT RECOMMENDED
- Datasheet
- LM3S1968-IQC50-A2T Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $27.4520(MOQ 1000)
- 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 LM3S1968-IQC50-A2T?
- 32-bit ARM Cortex-M3 core running at up to 50 MHz for deterministic embedded control performance
- Integrated 12-bit ADC with multiple input channels enabling direct sensor signal acquisition without external converters
- JTAG boundary scan support simplifying board-level testing and in-circuit debugging of complex PCB assemblies
What is LM3S1968-IQC50-A2T used for?
The LM3S1968-IQC50-A2T targets industrial automation, motor control, and building automation systems that require a 32-bit processor with integrated analog and digital peripherals. Its Cortex-M3 architecture and on-chip ADC make it well-suited for data acquisition nodes, smart sensors, and human-machine interface controllers operating from a 3.3 V supply. The device also fits communications gateway designs that leverage its boundary scan capability for production testing.
What are the specifications of LM3S1968-IQC50-A2T?
| Pbfree Code | Yes |
| YTEOL | 3.9 |
| 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-G100 |
| JESD-609 Code | e4 |
| Low Power Mode | YES |
| Number of I/O Lines | 52 |
| Number of Serial I/Os | 6 |
| 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 | QFP100,.63SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 65536 |
| ROM (words) | 262144 |
| 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 | Nickel/Palladium/Gold (Ni/Pd/Au) |
| 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 | 8542.31.00.30 |
| Country of Origin | Philippines |
Where can I find the LM3S1968-IQC50-A2T datasheet?
LM3S1968-IQC50-A2T Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S1968-IQC50-A2T?
Compatible alternatives and drop-in replacements for LM3S1968-IQC50-A2T:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 50MHz, CMOS, PQFP100
Frequently Asked Questions
What is the maximum clock frequency and memory configuration of the LM3S1968-IQC50-A2T?
The LM3S1968-IQC50-A2T operates at a maximum CPU clock frequency of 50 MHz on its ARM Cortex-M3 core, paired with 256 KB of on-chip flash program memory and 64 KB of SRAM. This combination provides sufficient throughput and storage for real-time embedded applications such as motor control loops running at 10 kHz update rates.
Which industrial control applications are best matched to the LM3S1968-IQC50-A2T capabilities?
Industrial motor drives, HVAC controllers, and building automation panels benefit most from the LM3S1968-IQC50-A2T. Its 12-bit ADC can sample analog sensors at rates up to 1 MS/s, and the integrated UART, SPI, and I2C peripherals support common fieldbus and sensor interfaces. Operating over a -40 °C to 85 °C industrial temperature range adds reliability in harsh environments.
How does the LM3S1968-IQC50-A2T compare to the LM3S1958 in terms of peripheral count?
The LM3S1968 offers more GPIO pins and a larger peripheral set compared to the LM3S1958, including additional UART channels and a higher-density package with more than 100 pins. Both share the same Cortex-M3 core at 50 MHz and 3.3 V supply, but the LM3S1968 targets applications needing more than 64 I/O lines or two or more independent UART communication ports simultaneously.
Does the LM3S1968-IQC50-A2T support JTAG boundary scan for production board testing?
Yes, the LM3S1968-IQC50-A2T includes full JTAG boundary scan compliance, enabling interconnect testing on assembled PCBs without dedicated test probes. This reduces test fixture costs for medium-volume production runs. The JTAG interface also serves as the primary in-circuit debug and programming port, compatible with standard ARM Cortex-M3 debug tools operating at 3.3 V logic levels.
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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.
More from Texas Instruments
| Qty. | Unit Price | Ext. Price |
|---|---|---|
| 1000+ | $27.4520 | $27452.04 |
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