SI1026-B-GM

RF Transceiver ICS Overview

The SI1026-B-GM is an ultra-low power system-on-chip integrating a sub-1 GHz RF transceiver with an 8051 microcontroller. It operates within the ISM band from 240 MHz to 960 MHz, supporting FSK, GFSK, and OOK modulation schemes via the EZRadioPRO protocol. The device features a high-speed 8051 core delivering 25 MIPS, accompanied by 32 KB of ISP Flash memory and 256 bytes of data RAM. Electrical specifications include a maximum transmit power of 13 dBm and a receive sensitivity of -121 dBm. The MCU interface options encompass I²C, SPI, and UART connections.

RF Transceiver ICS Feature Summary

• Integrates a high-speed 8051 microcontroller with dedicated packet processing engine for hardware AES, DMA, and CRC
• Features an integrated LCD controller and real-time clock capabilities
• Includes on-chip components such as an oscillator with spread-spectrum capabilities and a temperature sensor

RF Transceiver ICS Applications

• Wireless networking projects requiring sub-GHz communication
• Embedded systems utilizing LCD displays
• IoT devices needing secure data transmission

RF Transceiver ICS Procurement Notes

Verify the specific suffix 'B' against the manufacturer's current datasheet to confirm pinout and functional compatibility. Ensure the 85-VFLGA package dimensions align with the target PCB footprint. Cross-reference the operating voltage range of 1.8V to 3.8V with the system power supply design to guarantee stable operation under all load conditions.

RF Transceiver ICS Selection Notes

Select this component when a combined MCU and RF solution is required for sub-GHz applications. The integration reduces board space compared to discrete solutions. Consider the 32 KB Flash size for firmware requirements. Evaluate the 13 dBm output power against link budget needs. Confirm that the 8051 architecture suits the development team's software expertise.

RF Transceiver ICS Part Context

This part belongs to the Si102x/3x family of ultra-low power wireless MCUs from Silicon Labs. These devices are designed for cost-sensitive and space-constrained IoT applications. The family shares architectural similarities but varies in memory size and peripheral configurations. The SI1026 variant specifically targets applications requiring moderate code storage and standard connectivity options.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers: None identified.