SI1025-B-GMR

RF Transceiver ICS Overview

The SI1025-B-GMR is an ARM Cortex-M0 RF transceiver microcontroller from Silicon Labs, housed in a QFN-48 package. It features 32 kB of program memory and 8448 bytes of data RAM. The device operates on a 3.8 MHz maximum clock frequency with a 12-bit ADC resolution. Supply voltage ranges from 1.8 V to 3.8 V, supporting operation between -40°C and +85°C.

RF Transceiver ICS Feature Summary

• Integrates an ARM Cortex-M0 core with Sub-GHz RF transceiver capabilities for wireless communication.
• Includes high-resolution analog-to-digital conversion suitable for sensor interfacing.
• Supports low-voltage operation within a compact surface-mount package.

RF Transceiver ICS Applications

• Wireless sensor nodes requiring integrated processing and transmission
• Industrial monitoring systems utilizing Sub-GHz frequencies
• Smart metering applications with analog input requirements

RF Transceiver ICS Procurement Notes

Verify component availability as the part may be discontinued or subject to supply constraints. Confirm package integrity and RoHS compliance status prior to integration. Ensure design compatibility with existing firmware environments given the specific ARM Cortex-M0 architecture and peripheral configuration limitations inherent to this legacy silicon generation.

RF Transceiver ICS Selection Notes

Select this component when a combined MCU and RF solution is required for Sub-GHz bands. Evaluate the 3.8 MHz processing speed against application latency needs. Consider the 8448-byte RAM limit for complex protocol stacks. Verify that the QFN-48 footprint fits the PCB layout constraints compared to alternative packages in the series.

RF Transceiver ICS Part Context

This model belongs to the Silicon Labs SI10xx family of mixed-signal SoCs designed for cost-sensitive wireless applications. It combines standard microcontroller peripherals with proprietary RF front-end technology. The B suffix indicates specific binning or testing criteria defined by the manufacturer for performance consistency.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Check for EOL notifications or cross-reference with newer Silicon Labs wireless MCU families such as the EFM32 or EFR32 series for long-term supply stability.