| PartNumber | LM3S5D91-IQC80-A2 | LM3S5D91-IQC80-A1T | LM3S5D91-IQC80-A1 |
| Description | ARM Microcontrollers - MCU Stellaris LM3S Microcontroller 100-LQFP -40 to 85 | ARM Microcontrollers - MCU IC ARM Cortex-M3 MCU | IC MCU 32BIT 512KB FLASH 100LQFP |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | Embedded - Microcontrollers |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-100 | LQFP-100 | - |
| Series | LM3S5D91 | LM3S | StellarisR ARMR CortexR-M3S 5000 |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Product | MCU | MCU | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| Factory Pack Quantity | 90 | 1000 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Unit Weight | 0.046530 oz | - | - |
| Packaging | - | - | Tray |
| Package Case | - | - | 100-LQFP |
| Operating Temperature | - | - | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | - | 100-LQFP (14x14) |
| Number of I O | - | - | 72 |
| Speed | - | - | 80MHz |
| EEPROM Size | - | - | - |
| Core Processor | - | - | |
| RAM Size | - | - | 96K x 8 |
| Program Memory Type | - | - | FLASH |
| Peripherals | - | - | Brown-out Detect/Reset, DMA, I2S, POR, PWM, WDT |
| Connectivity | - | - | CAN, EBI/EMI, I2C, IrDA, LIN, Microwire, QEI, SPI, SSI, UART/USART, USB OTG |
| Voltage Supply Vcc Vdd | - | - | 3 V ~ 3.6 V |
| Core Size | - | - | 32-Bit |
| Program Memory Size | - | - | 512KB (512K x 8) |
| Data Converters | - | - | A/D 16x12b |
| Oscillator Type | - | - | Internal |