Overview
The Texas Instruments LM3S1968-IQC50-A2 is a 32-bit microcontroller based on the ARM Cortex-M3 processor core. It operates at a maximum frequency of 50 MHz and features 256 kB of single-cycle flash memory and 64 kB of single-cycle SRAM. This microcontroller is part of the Stellaris family and is designed for real-time industrial applications, offering advanced motion control, industrial connectivity, and intelligent analog capabilities.
Key Specifications
| Parameter | Value |
|---|---|
| Core Processor | 32-bit ARM Cortex-M3 |
| Maximum Frequency | 50 MHz |
| Program Memory Size | 256 kB (256K x 8) Flash |
| RAM Size | 64 kB (64K x 8) |
| Number of I/O | Up to 52 GPIOs |
| Connectivity | I2C, IrDA, Microwire, QEI, SPI, SSI, UART/USART |
| Analog-to-Digital Converter (ADC) | 10-bit, 8 channels, 1 million samples/second |
| Operating Temperature | -40°C to 85°C |
| Package | 100-pin LQFP |
| Supply Voltage | 2.25 V to 2.75 V |
Key Features
- Full-featured debug solution with JTAG and Serial Wire interfaces, and IEEE 1149.1-1990 compliant Test Access Port (TAP) controller.
- Advanced motion control features including 6 motion-control PWM outputs with dead-band, two quadrature encoder inputs, and fault protection inputs.
- Intelligent analog capabilities with three analog comparators and an 8-channel 10-bit ADC.
- Real-time industrial connectivity with two SSI/SPI controllers, two I2C interfaces, and three UARTs.
- Lower-power battery-backed Hibernation module with Real-Time Clock and 256 bytes of non-volatile state-saving memory.
- Four General-Purpose Timer Modules (GPTM) and an ARM FiRM-compliant Watchdog Timer.
- Brown-out reset, power-on reset controller, and a low drop-out voltage regulator.
Applications
The LM3S1968 microcontroller is suitable for a variety of applications, including:
- Industrial automation and control systems.
- Motion control and robotics.
- Medical devices requiring precise analog and digital control.
- Automotive systems, especially those needing real-time data processing and industrial connectivity.
- Consumer electronics that require advanced motion control and analog capabilities.
Q & A
- What is the core processor of the LM3S1968 microcontroller?
The core processor is a 32-bit ARM Cortex-M3.
- What is the maximum operating frequency of the LM3S1968?
The maximum operating frequency is 50 MHz.
- How much flash and SRAM memory does the LM3S1968 have?
The LM3S1968 has 256 kB of flash memory and 64 kB of SRAM.
- What types of connectivity does the LM3S1968 support?
The LM3S1968 supports I2C, IrDA, Microwire, QEI, SPI, SSI, and UART/USART.
- What is the resolution and sample rate of the ADC on the LM3S1968?
The ADC is 10-bit with a sample rate of 1 million samples per second.
- What are the key features of the motion control capabilities of the LM3S1968?
The key features include 6 motion-control PWM outputs with dead-band, two quadrature encoder inputs, and fault protection inputs.
- Does the LM3S1968 have any power-saving features?
Yes, it includes a lower-power battery-backed Hibernation module with Real-Time Clock.
- What is the operating temperature range of the LM3S1968?
The operating temperature range is -40°C to 85°C.
- What package options are available for the LM3S1968?
The LM3S1968 is available in a 100-pin LQFP package.
- Is the LM3S1968 RoHS compliant?
Yes, the LM3S1968 is RoHS compliant.
