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| PartNumber | STR911FAW42X6 | STR911FAW44X6 | STR911FAW44X6T |
| Description | ARM Microcontrollers - MCU ARM966E S 16/32B Flash MCU | ARM Microcontrollers - MCU ARM966E S 16/32B Flash MCU | ARM Microcontrollers - MCU ARM966 MCU 16/32-bit Ethernet |
| 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 | LQFP-128 | - |
| Series | STR911FAW42 | STR911FAW44 | STR911FAW44 |
| Core | ARM966E-S | ARM966E-S | ARM966E-S |
| Data Bus Width | 32 bit/16 bit | 32 bit/16 bit | 32 bit/16 bit |
| Maximum Clock Frequency | 96 MHz | 96 MHz | - |
| Program Memory Size | 256 kB | 512 kB | - |
| Data RAM Size | 96 kB | 96 kB | - |
| Number of I/Os | 80 I/O | 80 I/O | - |
| Operating Supply Voltage | 1.8 V | 1.8 V | 1.8 V |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Packaging | Tray | Tray | Reel |
| Height | 1.4 mm | 1.4 mm | - |
| Length | 14 mm | 14 mm | - |
| Product | MCU | MCU | - |
| Program Memory Type | Flash | Flash | - |
| Width | 14 mm | 14 mm | - |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Interface Type | CAN, I2C, IrDA, SSP, UART, USB | CAN, I2C, IrDA, SSP, UART, USB | - |
| Analog Supply Voltage | 3.3 V | 3.3 V | 3.3 V |
| I/O Voltage | 3.3 V | 3.3 V | 3.3 V |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers/Counters | 4 Timer | 4 Timer | - |
| Processor Series | STR911x | STR911x | STR911x |
| 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 | 2 V | 2 V | 2 V |
| Supply Voltage Min | 1.65 V | 1.65 V | 1.65 V |
| Unit Weight | 0.046530 oz | 0.021693 oz | - |