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| PartNumber | STM32L151UCY6DTR | STM32L151UCY7TR | STM32L151UCY6TR |
| Description | ARM Microcontrollers - MCU 16/32-BITS MICROS | ARM Microcontrollers - MCU Ultra-low-power ARM Cortex-M3 MCU with 256 Kbytes Flash, 32 MHz CPU, USB, 2xOp-amp | ARM Microcontrollers - MCU 32B ARM Cortex-M3 384Kb Flsh 32MHz CPU |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Series | STM32L1 | STM32L151UC | STM32L151UC |
| Operating Supply Voltage | 1.65 V to 3.6 V | - | 1.65 V to 3.6 V |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Analog Supply Voltage | 1.65 V to 3.6 V | - | 1.65 V to 3.6 V |
| I/O Voltage | 1.65 V to 3.6 V | - | 1.65 V to 3.6 V |
| Processor Series | STM32L1 | - | STM32L1 |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 3000 | 3000 | 3000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | - | 3.6 V |
| Supply Voltage Min | 1.65 V | - | 1.65 V |
| Tradename | STM32 | STM32 | STM32 |
| Package / Case | - | WLCSP-63 | - |
| RoHS | - | - | Y |
| Packaging | - | - | Reel |