| PartNumber | STM32L151R8T6 | STM32L151R8T6ATR | STM32L151R8T6A |
| Description | ARM Microcontrollers - MCU 32-Bit Arm Cortex M3 64kb Ultralow Power | ARM Microcontrollers - MCU Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, USB | ARM Microcontrollers - MCU Ultra-low-power ARM Cortex-M3 MCU with 64 Kbytes Flash, 32 MHz CPU, USB |
| Manufacturer | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Product Category | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| RoHS | Y | - | Y |
| Series | STM32L151R8 | STM32L151R8-A | STM32L151R8-A |
| Core | ARM Cortex M3 | ARM Cortex M3 | - |
| Data Bus Width | 32 bit | 32 bit | - |
| 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 | - | - |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Interface Type | I2C, SPI, USART, USB | I2C, SPI, USART, USB | - |
| Moisture Sensitive | Yes | - | Yes |
| Product Type | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU | ARM Microcontrollers - MCU |
| Factory Pack Quantity | 960 | 1000 | 960 |
| Subcategory | Microcontrollers - MCU | Microcontrollers - MCU | Microcontrollers - MCU |
| Unit Weight | 0.012088 oz | - | 0.091712 oz |
| Mounting Style | - | SMD/SMT | - |
| Package / Case | - | LQFP-64 | LQFP-64 |
| Maximum Clock Frequency | - | 32 MHz | - |
| Program Memory Size | - | 64 kB | - |
| Data RAM Size | - | 32 kB | - |
| ADC Resolution | - | 12 bit | - |
| Number of I/Os | - | 51 I/O | - |
| Product | - | MCU | - |
| Program Memory Type | - | Flash | - |
| Data RAM Type | - | SRAM | - |
| Data ROM Size | - | 4 kB | - |
| Data ROM Type | - | EEPROM | - |
| DAC Resolution | - | 2 x 12 bit | - |
| Number of ADC Channels | - | 20 Channel | - |
| Supply Voltage Max | - | 3.6 V | 3.6 V |
| Supply Voltage Min | - | 1.8 V | 1.65 V |
| Watchdog Timers | - | Watchdog Timer, Windowed | - |
| Analog Supply Voltage | - | - | 1.65 V to 3.6 V |
| I/O Voltage | - | - | 1.65 V to 3.6 V |
| Processor Series | - | - | STM32L1 |
| Tradename | - | - | STM32 |