IS1870SF-202

RF Transceiver ICS Overview

The IS1870SF-202 is a Bluetooth Low Energy System on Chip (SoC) from Microchip Technology, compliant with Bluetooth 5.0 specifications. It integrates an 8051 core operating at up to 32 MHz with 256 kB program memory and 24 kB SRAM. The device operates within a 1.9 V to 3.6 V supply range and supports data rates up to 921.6 kbps. It features a 2.4 GHz transceiver with 3 dBm output power and -90 dBm sensitivity. Packaged in a 48-lead QFN (6x6 mm), it includes a 12-bit ADC, 31 I/Os, and interfaces such as SPI, I2C, and UART, functioning within an industrial temperature range of -40°C to +85°C.

RF Transceiver ICS Feature Summary

• Integrates a Bluetooth 5.0 compliant RF transceiver with an 8051 microcontroller core for unified processing and wireless communication.
• Provides extensive peripheral connectivity including a 12-bit analog-to-digital converter, multiple serial interfaces, and numerous general-purpose I/O pins.
• Designed for industrial environments with extended temperature rating and robust low-power operation modes suitable for battery-constrained applications.

RF Transceiver ICS Applications

• Industrial IoT sensor nodes requiring reliable short-range wireless connectivity
• Smart home devices and consumer electronics utilizing BLE protocols
• Asset tracking systems and proximity detection applications

RF Transceiver ICS Procurement Notes

Verify the specific suffix designation to confirm package type and tape/reel configuration, as variations exist between tray and cut-tape packaging options. Ensure the selected variant matches the required industrial temperature range and voltage specifications for the target application environment. Cross-reference the manufacturer datasheet for moisture sensitivity levels and reflow soldering profiles to guarantee assembly reliability.

RF Transceiver ICS Selection Notes

Select this component when a combined MCU and BLE radio solution is required to minimize board space and component count. Consider the 8051 architecture compatibility if existing firmware libraries are utilized. Evaluate the 31 available I/Os and ADC channels against peripheral requirements. Confirm that the 2.4 GHz frequency band aligns with regional regulatory standards and interference constraints for the deployment location.

RF Transceiver ICS Part Context

This part belongs to the IS1870/71 family of Bluetooth Low Energy SoCs designed by Microchip Technology. These devices target cost-sensitive and space-constrained IoT applications by integrating high-performance RF capabilities with standard microcontroller resources. The family emphasizes ease of integration through standardized interfaces and comprehensive peripheral sets, supporting rapid development of connected devices.

RF Transceiver ICS Replacement Considerations

Publicly confirmed substitute part numbers include IS1871SF variants within the same product family, which share similar architectural features but may differ in specific memory configurations or pinout assignments. Verify functional equivalence regarding Bluetooth protocol support and electrical characteristics before substitution.