LM3S5732-IQR50-A0T Texas Instruments Integrated Circuit (Quad Flat Packages) In Stock
The LM3S5732-IQR50-A0T is a 32-bit ARM Cortex-M3 microcontroller with 128KB Flash memory, integrated ADC and DMA, operating at up to 16.384 MHz and supporting 2.5V, 3V, and 3.3V supply voltages in a 64-pin LQFP tape-and-reel package. It includes boundary scan support for board-level testing. Available from authorized distributors with worldwide shipping.
- Manufacturer
- Texas Instruments
- Package
- Quad Flat Packages
- Pin Count
- 64
- Lifecycle
- OBSOLETE
- Datasheet
- LM3S5732-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
Key Features
- 32-bit ARM Cortex-M3 RISC core running up to 16.384 MHz delivers deterministic real-time performance for embedded control applications
- 128KB on-chip Flash with integrated ADC and DMA channels enables data acquisition and peripheral management without external memory or controller ICs
- 64-pin LQFP tape-and-reel packaging with boundary scan (JTAG) support simplifies automated PCB assembly and board-level functional testing
Applications
The LM3S5732-IQR50-A0T is suited for industrial control, motor drive, and building automation applications requiring a compact, low-power 32-bit microcontroller with integrated analog and digital peripherals. Its ARM Cortex-M3 core and DMA channels support efficient sensor data acquisition and communication protocol handling in embedded systems. The wide supply voltage range of 2.5V to 3.3V makes it compatible with both battery-powered and regulated-supply designs.
Specifications
| Pbfree Code | Yes |
| YTEOL | 0 |
| Has ADC | YES |
| Bit Size | 32 |
| Boundary Scan | YES |
| CPU Family | CORTEX-M3 |
| Clock Frequency-Max | 16.384MHz |
| DAC Channels | NO |
| DMA Channels | YES |
| 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 | 7 |
| 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 | QFP64,.47SQ,20 |
| Package Shape | SQUARE |
| Package Style | FLATPACK |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| RAM (bytes) | 65536 |
| 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 | Quad Flat Packages |
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 |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for LM3S5732-IQR50-A0T:
RISC Microcontroller, 32-Bit, FLASH, CORTEX-M3 CPU, 50MHz, CMOS, PQFP64
Frequently Asked Questions
What processor core does the LM3S5732-IQR50-A0T use and what is its maximum clock speed?
The LM3S5732-IQR50-A0T uses an ARM Cortex-M3 32-bit RISC processor core with a maximum clock frequency of 16.384 MHz. The Cortex-M3 provides deterministic interrupt latency, a Thumb-2 instruction set, and hardware multiply/divide, making it well-suited for real-time control and embedded signal processing applications.
How much Flash memory does the LM3S5732-IQR50-A0T have?
The LM3S5732-IQR50-A0T is equipped with 128KB of on-chip Flash memory for program storage. This capacity is sufficient for a wide range of embedded firmware applications, including RTOS-based designs, communication stacks, and motor control algorithms without requiring external memory devices.
What package does the LM3S5732-IQR50-A0T use?
The LM3S5732-IQR50-A0T is available in a 64-pin Low-profile Quad Flat Package (LQFP) in tape-and-reel format, suitable for automated surface-mount PCB assembly. The LQFP package provides a manageable pitch for manual and automated soldering while offering access to all 64 I/O and power pins needed for full microcontroller functionality.
What supply voltages does the LM3S5732-IQR50-A0T support?
The LM3S5732-IQR50-A0T operates from supply voltages of 2.5V, 3V, or 3.3V, providing flexibility to interface directly with common regulated power rails in embedded systems. This multi-voltage compatibility allows integration with 3.3V logic systems and extends battery life in portable or energy-harvesting applications using lower supply voltages.
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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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