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| PartNumber | LM3S8971-IBZ50-A2T | LM3S8971-IBZ50-A2 | LM3S8971-IQC50 |
| Description | ARM Microcontrollers - MCU IC ARM CORTEX MCU | IC MCU 32BIT 256KB FLASH 108BGA Stellaris ARM Cortex-M3S 8000 | |
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Category | ARM Microcontrollers - MCU | Embedded - Microcontrollers | Embedded - Microcontrollers |
| RoHS | Y | - | - |
| Mounting Style | SMD/SMT | SMD/SMT | SMD/SMT |
| Package / Case | nFBGA-108 | - | - |
| Series | LM3S8971 | StellarisR ARMR CortexR-M3S 8000 | StellarisR ARMR CortexR-M3S 8000 |
| Core | ARM Cortex M3 | ARM Cortex M3 | ARM Cortex M3 |
| Data Bus Width | 32 bit | 32 bit | 32 bit |
| Maximum Clock Frequency | 50 MHz | 50 MHz | 50 MHz |
| Program Memory Size | 256 kB | 256KB (256K x 8) | 256KB (256K x 8) |
| Data RAM Size | 64 kB | 64 kB | 64 kB |
| Number of I/Os | 38 I/O | - | - |
| Operating Supply Voltage | 2.5 V | 2.5 V 3.3 V | 2.5 V 3.3 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - 40 C |
| Maximum Operating Temperature | + 85 C | + 85 C | + 85 C |
| Packaging | Reel | Tray Alternate Packaging | Tray |
| Height | 1.02 mm | - | - |
| Length | 10 mm | - | - |
| Product | MCU | MCU | MCU |
| Program Memory Type | Flash | FLASH | FLASH |
| Width | 10 mm | - | - |
| Brand | Texas Instruments | - | - |
| Interface Type | I2C, SPI, SSI, UART | I2C SPI SSI UART | I2C SPI SSI UART |
| Analog Supply Voltage | 3.3 V | - | - |
| I/O Voltage | 3.3 V | - | - |
| Moisture Sensitive | Yes | - | - |
| Number of Timers/Counters | 6 Timer | - | - |
| Processor Series | Stellaris | Stellaris | Stellaris |
| Product Type | ARM Microcontrollers - MCU | - | - |
| Factory Pack Quantity | 1000 | - | - |
| Subcategory | Microcontrollers - MCU | - | - |
| Supply Voltage Max | 2.75 V | - | - |
| Supply Voltage Min | 2.25 V | - | - |
| Tradename | Stelaris | Stelaris | Stelaris |
| Package Case | - | nFBGA-108 | LQFP-100 |
| Operating Temperature | - | -40°C ~ 85°C (TA) | -40°C ~ 85°C (TA) |
| Supplier Device Package | - | 108-BGA (10x10) | 100-LQFP (14x14) |
| Number of I O | - | 38 | 38 |
| Speed | - | 50MHz | 50MHz |
| EEPROM Size | - | - | - |
| Core Processor | - | ARMR CortexR-M3 | ARMR CortexR-M3 |
| RAM Size | - | 64K x 8 | 64K x 8 |
| Peripherals | - | Brown-out Detect/Reset, POR, PWM, WDT | Brown-out Detect/Reset, POR, PWM, WDT |
| Connectivity | - | CAN, Ethernet, IrDA, Microwire, QEI, SPI, SSI, UART/USART | CAN, Ethernet, IrDA, Microwire, QEI, SPI, SSI, UART/USART |
| Voltage Supply Vcc Vdd | - | 2.25 V ~ 2.75 V | 2.25 V ~ 2.75 V |
| Core Size | - | 32-Bit | 32-Bit |
| Data Converters | - | A/D 8x10b | A/D 8x10b |
| Oscillator Type | - | Internal | Internal |
| Supply Voltage Max | - | 2.75 V 3.6 V | 2.75 V 3.6 V |
| Supply Voltage Min | - | 2.25 V 2.3 V 3 V | 2.25 V 2.3 V 3 V |
| Number of I Os | - | 38 I/O | 38 I/O |
| Number of Timers Counters | - | 6 Timer | 6 Timer |
| Unit Weight | - | - | 0.046530 oz |