Texas Instruments LM3S5K31-IQC80-C0T Microcontrollers
32-bit ARM Cortex M3 RISC microcontroller featuring 128KB Flash program memory and 24KB RAM.

Same model may have multiple batches, images only for reference.
Manufacturer
Part Number (MPN)
LM3S5K31-IQC80-C0T
Series
Base Model
Detailed Description
32-bit ARM Cortex M3 RISC microcontroller featuring 128KB Flash program memory and 24KB RAM. Operates at up to 80 MHz with a 32-bit data bus. Offers 67 programmable I/Os and multiple interfaces including CAN, I2C, UART, and USB. Packaged in a 100-pin LQFP (Low Profile Quad Flat Package) for surface mounting, with a 0.5mm pin pitch. Suitable for operation between -40 °C and 85 °C.
Package
LQFP
Key Features
Package: LQFP
Lifecycle Status
Active
Datasheet
LM3S5K31-IQC80-C0T Datasheet
Quick Jump:
Technical Specifications
Texas Instruments LM3S5K31-IQC80-C0T Microcontrollers technical specifications.
General
RAM Size
24KB
Data Bus Width
32bit
Number of Pins
100
Package / Case
100-LQFP
Mounting Type
Surface Mount
Operating Temperature
-40°C ~ 85°C (TA)
Supply Voltage
1.08V ~ 1.32V
Basic Package Type
Lead-Frame SMT
Package Family Name
QFP
Package
LQFP
Alternate Parts Comparison (LM3S5K31-IQC80-C0T vs LM3S5K31-IBZ80-C3 vs LM3S5K31-IBZ80-C1T vs LM3S5K31-IBZ80-C5)
Side-by-side technical parameter comparison of related primary models in this product family.
| This Part | Alternate Parts | Alternate Parts | Alternate Parts | |
|---|---|---|---|---|
| Package / Case | 100-LQFP | 108-LFBGA | 108-LFBGA | 108-LFBGA |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Operating Temperature | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supply Voltage | 1.08V ~ 1.32V | 1.08V ~ 1.32V | 1.08V ~ 1.32V | 1.08V ~ 1.32V |
| Core Processor | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 | ARM® Cortex®-M3 |
| Core Size | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core | 32-Bit Single-Core |
| RAM Size | 24KB | 24K x 8 | 24K x 8 | 24K x 8 |
| Connectivity | CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB | CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB | CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB | CANbus, I²C, IrDA, LINbus, Microwire, QEI, SPI, SSI, UART/USART, USB |
| Data Converters | A/D 16x10b | A/D 16x10b | A/D 16x10b | A/D 16x10b |
| Number of I/O | 67 | 67 | 67 | 67 |
| Oscillator Type | Internal | Internal | Internal | Internal |
| Peripherals | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT | Brown-out Detect/Reset, DMA, POR, PWM, WDT |
| Action |
Texas Instruments LM3S5K31-IQC80-C0T Microcontrollers Overview
32-bit ARM Cortex M3 RISC microcontroller featuring 128KB Flash program memory and 24KB RAM. Operates at up to 80 MHz with a 32-bit data bus. Offers 67 programmable I/Os and multiple interfaces including CAN, I2C, UART, and USB. Packaged in a 100-pin LQFP (Low Profile Quad Flat Package) for surface mounting, with a 0.5mm pin pitch.
Suitable for operation between -40 °C and 85 °C.
More Parts in Microcontrollers
Browse additional parts from the same category, grouped by series, package type, and manufacturer. These are catalog suggestions — not verified pin-compatible alternates.