LM3S817-IQN50-C2T Texas Instruments Integrated Circuit (Other) In Stock
Texas Instruments LM3S817-IQN50-C2T is a 32-bit ARM Cortex-M3 microcontroller with integrated ADC, boundary scan, and fixed-point processing running up to 50 MHz. It includes on-chip flash, SRAM, UART, SSI, and I2C peripherals in a compact QFN-48 package. Available in stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 48
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S817-IQN50-C2T 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 LM3S817-IQN50-C2T?
- 32-bit ARM Cortex-M3 CPU core with hardware fixed-point support and boundary scan, enabling deterministic real-time control up to 50 MHz
- Integrated 10-bit ADC with multiple input channels for direct sensor signal acquisition without external analog front-end ICs
- QFN-48 package with multiple UART, SSI, and I2C peripheral blocks, reducing bill-of-materials for compact embedded control boards
What is LM3S817-IQN50-C2T used for?
The LM3S817-IQN50-C2T targets embedded industrial control, building automation, and HVAC panel applications where a 32-bit Cortex-M3 processor at 50 MHz provides sufficient compute for PID loops and protocol handling. Its integrated ADC and communication peripherals reduce external component count in energy metering, access control, and industrial sensor node designs. The device is also used in low-volume test equipment and evaluation boards requiring JTAG boundary scan for manufacturing test.
What are the specifications of LM3S817-IQN50-C2T?
| 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-G48 |
| JESD-609 Code | e4 |
| Low Power Mode | YES |
| Number of I/O Lines | 30 |
| Number of Serial I/Os | 3 |
| Number of Timers | 3 |
| On Chip Data RAM Width | 8 |
| On Chip Program ROM Width | 8 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Equivalence Code | QFP48,.35SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 8192 |
| ROM (words) | 65536 |
| ROM Programmability | FLASH |
| Speed | 50MHz |
| Supply Current-Max | 110mA |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3.3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | NICKEL PALLADIUM GOLD |
| 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 LM3S817-IQN50-C2T datasheet?
LM3S817-IQN50-C2T Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S817-IQN50-C2T?
Compatible alternatives and drop-in replacements for LM3S817-IQN50-C2T:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 50MHz, CMOS, PQFP48
Frequently Asked Questions
What CPU architecture and maximum operating frequency does the LM3S817-IQN50-C2T use?
The LM3S817-IQN50-C2T is based on the 32-bit ARM Cortex-M3 core and operates at up to 50 MHz, delivering 50 DMIPS. The fixed-point hardware accelerator and Thumb-2 instruction set allow efficient execution of control algorithms within 128 KB flash and 64 KB SRAM on chip.
Does the LM3S817-IQN50-C2T include an ADC, and how many channels are available for sensor acquisition?
Yes, the device integrates a 10-bit successive-approximation ADC with up to 8 input channels and a maximum sample rate of 500 kSPS. This allows direct connection of resistive sensors, thermistors, or current-sense amplifier outputs without an external ADC, reducing BOM cost in industrial sensor nodes.
When would a designer choose LM3S817-IQN50-C2T over a smaller 8-bit or 16-bit microcontroller for a control application?
Designs requiring 32-bit integer arithmetic, more than 4 UART or SPI channels simultaneously, or JTAG boundary-scan manufacturing test support benefit from the LM3S817-IQN50-C2T. At 50 MHz with 128 KB flash, it handles USB, Ethernet, or CAN protocol stacks that exceed the code space of typical 8-bit or 16-bit devices while fitting in a 7 mm x 7 mm QFN-48 footprint.
What package does the LM3S817-IQN50-C2T use and how does it fit on a compact PCB?
The part uses a 48-pin QFN package measuring approximately 7 mm x 7 mm with 0.5 mm pitch exposed pad for thermal dissipation. This compact footprint is smaller than equivalent 64-pin LQFP alternatives, saving roughly 30% board area while maintaining the same peripheral count for space-constrained industrial control panels.
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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.
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