AX-SFUS-1-01-TB05

RF Transceiver ICS Overview

The AX-SFUS-1-01-TB05 is a Sub-GHz System-on-Chip (SoC) developed by onsemi, integrating an RF transceiver and a microcontroller unit (MCU). It operates within the ISM band below 1GHz, specifically tuned for 868MHz applications. The device supports GFSK modulation with a maximum data rate of 600bps. Electrical specifications include a supply voltage range of 1.8V to 3.6V, receiver sensitivity of -126dBm, and transmit power up to 14dBm. Current consumption is rated at 10mA during reception and varies between 19mA and 49mA during transmission. It features SPI and UART serial interfaces, 10 GPIOs, and is housed in a 40-VFQFN package with exposed pad.

RF Transceiver ICS Feature Summary

• Integrates RF transceiver and MCU into a single system-on-chip architecture
• Supports SigFox protocol for Sub-GHz wireless communication
• Provides low current consumption suitable for battery-powered IoT devices
• Includes standard digital interfaces such as SPI and UART

RF Transceiver ICS Applications

• SigFox network node development
• IoT sensor module prototyping
• Sub-GHz wireless telemetry systems

RF Transceiver ICS Procurement Notes

This component is officially designated as End-of-Life (EOL) by onsemi, with discontinuance notifications dated March 31, 2018. Availability is restricted, and distributors may not accept backorders due to temporary supply limitations. Verify current stock status and lead times carefully, as delivery schedules are uncertain. Engineering samples or remaining inventory should be sourced through authorized channels only.

RF Transceiver ICS Selection Notes

Select this part for legacy designs requiring specific integration of an RF transceiver and MCU for Sub-GHz applications. Note that it is discontinued; alternative solutions must be evaluated for pin compatibility and functional equivalence. Ensure the design supports the required 1.8V to 3.6V supply range and utilizes the 40-VFQFN package footprint.

RF Transceiver ICS Part Context

The AX-SFUS-1-01-TB05 belongs to the AX-SFEU family of Sub-GHz SoCs designed for low-power wide-area networks. It is often paired with evaluation kits like the DVK-SFUS-1-GEVK for development purposes. The device represents a consolidated solution for manufacturers targeting cost-effective, long-range wireless connectivity in the ISM band.

RF Transceiver ICS Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Due to the EOL status, engineers must identify cross-reference components based on functional requirements and interface compatibility.