LM3S6911-IQC50-A2 ARM Cortex-M3 Microcontroller 50-Pin QFP

LM3S6911-IQC50-A2 Overview

The LM3S6911-IQC50-A2 is a 32-bit ARM Cortex-M3 microcontroller in the Stellaris family. It delivers embedded control capability in a compact 50-pin package and targets industrial and commercial control systems that require deterministic processing and multiple serial interfaces. The device supports a nominal 3.3 V supply and is offered in revision A2, making it suitable for designs that need a low-voltage MCU with a proven Cortex-M3 architecture. See more at IC Manufacturer

LM3S6911-IQC50-A2 Technical Specifications

LM3S6911-IQC50-A2 Key Features

• 32-bit Cortex-M3 core ?? provides deterministic, mid-range processing performance for control and signal tasks.
• 50-pin compact package ?? balances I/O density and board space, useful where more pins than small packages but less than large QFPs are required.
• 3.3 V operation ?? aligns with common industrial logic and I/O standards to simplify power-domain integration.
• Automotive/industrial temperature range ?? supports designs that must operate between -40 ??C and +85 ??C for reliable field use.
• Stellaris family compatibility ?? eases software reuse and peripheral integration across related devices in the LM3S line.

Typical Applications

• Embedded motor control and power conversion systems that need deterministic 32-bit control and multiple serial interfaces for sensor feedback and actuator drive.
• Industrial automation nodes that require a compact 50-pin MCU to handle I/O, communications, and local decision logic in distributed control architectures.
• Human-machine interfaces or operator panels with mid-level processing needs, benefitting from an MCU that fits smaller PCBs while supporting common peripherals.
• Sensor gateway modules that aggregate analog and digital sensors and forward data over serial links, where low-voltage 3.3 V support simplifies system design.

LM3S6911-IQC50-A2 Advantages vs Typical Alternatives

The device combines a 32-bit Cortex-M3 core and a compact 50-pin package to offer a middle ground between smaller 8/16-bit MCUs and larger high-pin-count 32-bit devices. This leads to fewer PCB layers and lower BOM costs than higher-pin alternatives, while providing more compute and bus capability than simpler controllers. The 3.3 V supply and industrial temperature rating make it easier to integrate into existing industrial designs, and the Stellaris lineage supports software portability across similar parts.

LM3S6911-IQC50-A2 Brand Info

The LM3S6911-IQC50-A2 is part of the Stellaris MCU family from Texas Instruments (originally Luminary Micro). TI positions this line for real-time embedded control and industrial applications, emphasizing Cortex-M3 performance, peripheral integration, and ecosystem support for development and production environments.

FAQ

What core does this MCU use?

The device uses an ARM Cortex-M3 32-bit core. That architecture delivers deterministic interrupt latency and is well suited to mid-range embedded control and real-time tasks.

What package is LM3S6911-IQC50-A2 offered in?

The suffix indicates an IQC50 package, which corresponds to a 50-pin package option. This provides a compact pin count that suits space-constrained boards yet allows multiple I/O and serial interfaces.

What is the nominal supply voltage?

The MCU is specified for nominal 3.3 V operation. This aligns with industry-standard I/O levels and simplifies interfacing with common sensors and transceivers used in industrial applications.

What temperature range does it support?

The device supports an operating range from -40 ??C to +85 ??C, making it appropriate for many industrial and outdoor applications that require extended temperature tolerance.

How does it fit into the Stellaris family?

It is a member of the LM3S Stellaris series, enabling software and peripheral reuse across related models. Designers can migrate or scale designs within the family to match pin, memory, and performance needs.