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| PartNumber | LM3S5U91-IBZ80-A2 | LM3S5U91-IBZ80-A1T | LM3S5U91-IBZ80-A1 |
| Description | ARM Microcontrollers - MCU Stellaris LM3S Microcontroller 108-NFBGA -40 to 85 | ARM Microcontrollers - MCU IC ARM Cortex-M3 MCU | IC MCU 32BIT 384KB FLASH 108BGA Stellaris ARM Cortex-M3S 5000 |
| Manufacturer | Texas Instruments | Texas Instruments | - |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | - |
| Package / Case | nFBGA-108 | - | - |
| Series | LM3S5U91 | LM3S | - |
| 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 | 1000 | 1500 | - |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | - |