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| PartNumber | SI1000-C-GM | SI1000-CSA2-GM | SI1000-C-GMR |
| Description | RF Microcontrollers - MCU 64kB, 4kB RAM, +20 dBm, programmable XCVR, QFN42 | RF Microcontrollers - MCU 915 MHz, SNAP enabled programable XCVR, QFN42 | |
| Manufacturer | Silicon Laboratories | Silicon Laboratories | - |
| Product Category | RF Microcontrollers - MCU | RF Microcontrollers - MCU | - |
| RoHS | Y | Y | - |
| Core | 8051 | 8051 | - |
| Operating Frequency | 240 MHz to 960 MHz | 240 MHz to 960 MHz | - |
| Data Bus Width | 8 bit | 8 bit | - |
| Program Memory Size | 64 kB | 64 kB | - |
| Data RAM Size | 4352 B | 4352 B | - |
| Maximum Clock Frequency | 25 MHz | 25 MHz | - |
| ADC Resolution | No ADC | No ADC | - |
| Operating Supply Voltage | 1.8 V to 3.6 V | 0.9 V to 3.6 V | - |
| Maximum Operating Temperature | + 85 C | + 85 C | - |
| Package / Case | QFN-42 | QFN-42 | - |
| Mounting Style | SMD/SMT | SMD/SMT | - |
| Packaging | Tube | Tube | - |
| Program Memory Type | Flash | Flash | - |
| Brand | Silicon Labs | Silicon Labs | - |
| Interface Type | PCA, SMBus, SPI, UART | PCA, SMBus, SPI, UART | - |
| Number of I/Os | 22 I/O | 22 I/O | - |
| Minimum Operating Temperature | - 40 C | - 40 C | - |
| Moisture Sensitive | Yes | Yes | - |
| Number of Timers | 4 Timer | 4 Timer | - |
| Processor Series | Si100x | Si100x | - |
| Product Type | RF Microcontrollers - MCU | RF Microcontrollers - MCU | - |
| Factory Pack Quantity | 43 | 43 | - |
| Subcategory | Wireless & RF Integrated Circuits | Wireless & RF Integrated Circuits | - |
| Supply Voltage Max | 3.6 V | - | - |
| Supply Voltage Min | 1.8 V | 0.9 V | - |
| Unit Weight | 0.001764 oz | 0.001764 oz | - |