LM3S5T36-IQR80-C3 Texas Instruments Integrated Circuit (Other) In Stock
LM3S5T36-IQR80-C3 is a 32-bit ARM Cortex-M3 microcontroller from Texas Instruments running up to 16 MHz with integrated ADC, DMA, PWM, and 33 I/O lines in a 64-pin QFP package. It targets embedded control and connectivity applications. Available from stock worldwide with fast shipping.
- Manufacturer
- Texas Instruments
- Package
- Other
- Pin Count
- 64
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S5T36-IQR80-C3 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 LM3S5T36-IQR80-C3?
- 32-bit ARM Cortex-M3 core at up to 16 MHz with DMA support enables efficient data movement without CPU intervention in real-time control systems
- Integrated ADC and PWM channels on 33 I/O lines provide mixed-signal control capability for motor drive, sensor, and actuator interfaces
- 64-pin LQFP (S-PQFP-G64) package with RoHS-compliant Pb-free construction suits modern industrial and automotive-adjacent embedded designs
What is LM3S5T36-IQR80-C3 used for?
The LM3S5T36-IQR80-C3 is well suited for industrial control applications such as small motor drives, HVAC controllers, and building automation nodes that require a 32-bit processor with on-chip ADC and PWM at moderate clock speeds. It also fits human-machine interface panels and embedded gateways where 33 I/O lines and DMA-backed peripheral transfers reduce firmware complexity. The 64-pin LQFP footprint supports moderate-density PCB designs in cost-sensitive embedded systems.
What are the specifications of LM3S5T36-IQR80-C3?
| Pbfree Code | Yes |
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Clock Frequency-Max | 16MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| JESD-30 Code | S-PQFP-G64 |
| Number of I/O Lines | 33 |
| PWM Channels | YES |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| ROM Programmability | FLASH |
| Speed | 80MHz |
| Supply Voltage-Max | 3.6V |
| Supply Voltage-Min | 3V |
| Supply Voltage-Nom | 3.3V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| HTS Code | 8542.31.00.25 |
Where can I find the LM3S5T36-IQR80-C3 datasheet?
LM3S5T36-IQR80-C3 Datasheet DownloadOfficial datasheet from Texas Instruments
What are equivalent replacements for LM3S5T36-IQR80-C3?
Compatible alternatives and drop-in replacements for LM3S5T36-IQR80-C3:
Frequently Asked Questions
What is the maximum clock frequency of the LM3S5T36-IQR80-C3 and how does it suit real-time control loops?
The LM3S5T36-IQR80-C3 runs at a maximum clock frequency of 16 MHz on its 32-bit ARM Cortex-M3 core. At 16 MHz, the CPU can execute approximately 16 million instructions per second, supporting control loop rates of several kilohertz in motor control, PID regulation, and sensor fusion tasks typical of industrial embedded systems.
For a compact motor drive design, how do the PWM channels and 33 I/O lines on the LM3S5T36-IQR80-C3 support gate drive and fault handling?
The LM3S5T36-IQR80-C3 provides multiple PWM channels and 33 I/O lines, enabling direct generation of complementary PWM signals for 3-phase inverter gate drives alongside digital fault input, enable, and status pins. The on-chip DMA further offloads ADC current sampling to memory without CPU stalls, improving response latency in field-oriented control implementations.
When comparing the LM3S5T36-IQR80-C3 to 8-bit microcontrollers for a legacy retrofit, what advantages does the 32-bit architecture offer?
The 32-bit ARM Cortex-M3 architecture of the LM3S5T36-IQR80-C3 processes 32-bit integers and floating-point emulation in fewer clock cycles than 8-bit devices, reducing code size and execution time for mathematical control algorithms. Tasks like PID computation, table lookups, and protocol handling that require multiple 8-bit operations complete in single 32-bit instructions, improving throughput at the same 16 MHz clock.
How does the 64-pin LQFP package of the LM3S5T36-IQR80-C3 affect PCB layout for a mixed-signal embedded design?
The 64-pin LQFP (S-PQFP-G64) has a standard 0.5 mm pin pitch and approximately 10 mm x 10 mm body, providing a large enough perimeter to route all 33 I/O lines, power, and ground pins without excessive via usage. The through-hole-compatible pad pitch also simplifies hand-soldering during prototyping, while the flat package keeps component height below 1.6 mm for low-profile enclosure designs.
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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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