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| PartNumber | STM32L151VCT6 | STM32L151VCT6A | STM32L151VCT6ATR |
| Description | ARM Microcontrollers - MCU 32B ARM Cortex-M3 256Kb Flsh 32MHz CPU | ARM Microcontrollers - MCU STM32L15 Low Power M3 256kB 32MHz MCU | ARM Microcontrollers - MCU 32B ARM Cortex-M3 256Kb Flsh 32MHz CPU |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| RoHS | Y | Y | Y |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Package / Case | LQFP-100 | LQFP-100 | LQFP-100 |
| Series | STM32L151VC | STM32L151VC-A | STM32L151VC-A |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| Maximum Clock Frequency | 32 MHz | 32 MHz | - |
| Program Memory Size | 256 kB | 256 kB | - |
| Data RAM Size | 32 kB | 32 kB | - |
| ADC Resolution | 12 bit | 12 bit | - |
| Number of I/Os | 83 I/O | 83 I/O | - |
| Operating Supply Voltage | 1.65 V to 3.6 V | 1.8 V to 3.6 V | 1.65 V to 3.6 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Tray | Reel |
| Length | 14 mm | - | - |
| Program Memory Type | Flash | Flash | - |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Data RAM Type | SRAM | SRAM | - |
| Data ROM Size | 8 kB | 8 kB | - |
| Data ROM Type | EEPROM | EEPROM | - |
| Interface Type | I2C, SPI, UART, USB | I2C, I2S, SPI, USART, USB | - |
| Analog Supply Voltage | 1.65 V to 3.6 V | 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 | 1.65 V to 3.6 V |
| Moisture Sensitive | Yes | Yes | - |
| Number of ADC Channels | 25 | 25 Channel | - |
| Number of Timers/Counters | 9 Timer | 8 x 16 bit, 1 x 32 bit | - |
| Processor Series | STM32L1 | STM32L1 | STM32L1 |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 540 | 540 | 1000 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Supply Voltage Max | 3.6 V | 3.6 V | 3.6 V |
| Supply Voltage Min | 1.65 V | 1.8 V | 1.65 V |
| Tradename | STM32 | STM32 | STM32 |
| Unit Weight | 0.046530 oz | 0.161061 oz | - |
| Product | - | MCU | - |
| DAC Resolution | - | 12 bit | - |
| Watchdog Timers | - | Watchdog Timer, Windowed | - |