| PartNumber | LM3S1621-IQC80-C5 | LM3S1621-IQC80-C3 | LM3S1621-IQC80-C3T |
| Description | ARM Microcontrollers - MCU Stellaris MCU | ARM Microcontrollers - MCU Stellaris MCU | IC MCU 32BIT 128KB FLASH 100LQFP |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-100 | LQFP-100 | - |
| Series | LM3S1621 | LM3S | - |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 80 MHz | - | - |
| Program Memory Size | 128 kB | - | - |
| Data RAM Size | 32 kB | - | - |
| Number of I/Os | 67 I/O | - | - |
| Operating Supply Voltage | 2.5 V | 2.5 V | - |
| Minimum Operating Temperature | - 40 C | - | - |
| Maximum Operating Temperature | + 85 C | - | - |
| Packaging | Tray | - | - |
| Product | MCU | MCU | - |
| Brand | Texas Instruments | Texas Instruments | - |
| Analog Supply Voltage | 3.3 V | 3.3 V | - |
| I/O Voltage | 3.3 V | 3.3 V | - |
| Moisture Sensitive | Yes | - | - |
| Number of Timers/Counters | 2 Timer | - | - |
| Processor Series | Stellaris | Stellaris | - |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| Factory Pack Quantity | 90 | 90 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |
| Supply Voltage Max | 2.75 V | 2.75 V | - |
| Supply Voltage Min | 2.25 V | 2.25 V | - |
| Tradename | Stellaris | Stellaris | - |
| Unit Weight | 0.046530 oz | 0.046530 oz | - |
| Height | - | 1.45 mm | - |
| Length | - | 14 mm | - |
| Width | - | 14 mm | - |