Overview
The Texas Instruments LM3S1968-IQC50-A2T is a 32-bit microcontroller based on the ARM® Cortex™-M3 processor core. It operates at up to 50 MHz and features a comprehensive set of peripherals and interfaces, making it suitable for a wide range of industrial and embedded applications. The microcontroller includes 256 KB of single-cycle flash memory and 64 KB of single-cycle SRAM, along with advanced motion control, real-time industrial connectivity, and intelligent analog capabilities.
Key Specifications
| Parameter | Specification |
|---|---|
| Processor Core | 32-bit ARM® Cortex™-M3 |
| Operating Frequency | Up to 50 MHz |
| Flash Memory | 256 KB single-cycle flash |
| SRAM | 64 KB single-cycle SRAM |
| GPIOs | 5-52 GPIOs (depending on configuration) |
| Analog-to-Digital Converter (ADC) | 10-bit ADC with 8 analog input channels, 1M samples/second |
| Serial Interfaces | 3 UARTs, 2 SSI/SPI, 2 I2C |
| Timer Modules | 4 General-Purpose Timer Modules (GPTM), each with 2 16-bit timers/counters |
| PWM Generators | 3 PWM generator blocks with dead-band and interrupt/ADC-trigger selector |
| Quadrature Encoder Interface (QEI) | 2 QEI modules for position and velocity capture |
| Package Options | 100-pin LQFP, 108-ball BGA |
| Temperature Range | Industrial and extended temperature range |
Key Features
- Advanced Motion Control: Features 6 motion-control PWM outputs with dead-band, two quadrature encoder inputs, and fault protection inputs for low-latency shutdown.
- Real-Time Industrial Connectivity: Includes 2 SSI/SPI controllers, 2 I2C interfaces, and 3 UARTs with IrDA support.
- Intelligent Analog Capability: 3 analog comparators and an 8-channel 10-bit ADC with a sample rate of 1 million samples per second.
- Power Management: Battery-backed hibernation module with Real-Time Clock (RTC) and 256 bytes of non-volatile state-saving memory.
- Debug Solution: Full-featured debug solution with JTAG and Serial Wire interfaces, and IEEE 1149.1-1990 compliant Test Access Port (TAP) controller.
- General-Purpose Timers: 4 GPTM modules, each providing two 16-bit timers/counters.
- Watchdog Timer: ARM FiRM-compliant Watchdog Timer.
- GPIOs: Up to 52 GPIOs with programmable control for interrupts and pad configuration.
Applications
- Industrial Automation: Suitable for control systems, motor control, and industrial networking.
- Embedded Systems: Ideal for applications requiring real-time processing, such as medical devices, consumer electronics, and automotive systems.
- Motion Control: Used in applications involving precise position monitoring and control, such as robotics and CNC machines.
- IoT Devices: Applicable in Internet of Things (IoT) devices that require low power consumption and advanced connectivity options.
Q & A
- What is the processor core of the LM3S1968 microcontroller?
The LM3S1968 microcontroller is based on the 32-bit ARM® Cortex™-M3 processor core.
- What is the maximum operating frequency of the LM3S1968?
The LM3S1968 operates at up to 50 MHz.
- How much flash and SRAM memory does the LM3S1968 have?
The LM3S1968 has 256 KB of single-cycle flash memory and 64 KB of single-cycle SRAM.
- What types of serial interfaces are available on the LM3S1968?
The LM3S1968 features 3 UARTs, 2 SSI/SPI controllers, and 2 I2C interfaces.
- Does the LM3S1968 support motion control features?
Yes, it includes 6 motion-control PWM outputs with dead-band, two quadrature encoder inputs, and fault protection inputs.
- What is the sample rate of the ADC on the LM3S1968?
The 10-bit ADC has a sample rate of 1 million samples per second.
- How many GPIOs does the LM3S1968 have?
The LM3S1968 has up to 52 GPIOs depending on the configuration.
- Does the LM3S1968 support hibernation mode?
Yes, it features a battery-backed hibernation module with Real-Time Clock (RTC) and 256 bytes of non-volatile state-saving memory.
- What are the package options for the LM3S1968?
The LM3S1968 is available in 100-pin LQFP and 108-ball BGA packages.
- Is the LM3S1968 RoHS compliant?
Yes, the LM3S1968 is RoHS compliant.
