IS1870/71 Bluetooth Low Energy SoC Features Radio Frequency (RF)/Analog Features Bluetooth smart 5.0 Bluetooth Low Energy com- ISM band: 2.402 GHz to 2.480 GHz operation pliant Channels: 0 to 39 256 Kbytes embedded Flash memory Rx sensitivity: -90 dBm in Bluetooth Low Energy 2 UART/SPI/I C interface supported mode Integrated crystal oscillator operates with 32 MHz Tx power: 0 dBm (typical) external crystal Received Signal Strength Indicator (RSSI) moni- Temperature sensor supported tor 31 general purpose I/O (GPIO) pins for IS1870 SoC and 15 GPIO pins for IS1871 SoC Operating Conditions Supports 4-channel pulse-width modulation Operating voltage: 1.9V to 3.6V (PWM) for IS1870 SoC and 1-channel PWM for Operating temperature: -40C to +85C IS1871 SoC Supports 12-bit ADC (ENOB=10 or 8 bits) for bat- Applications tery and voltage detection 16-channel ADC for IS1870 SoC and 6-channel Internet of Things (IoT) ADC for IS1871 SoC are provided Wearable, fitness or healthcare AES-CMAC hardware engine Weighing scale Beacon support Proximity/Find Me services Low power consumption Secure payment Compact size: Digital beacons - IS1871: 4 mm x 4 mm 32QFN package Consumer appliances or home automation - IS1870: 6 mm x 6 mm 48QFN package Industrial Packages Type IS1870 IS1871 Pin count 48 32 I/O pins (up to) 31 15 Contact/lead pitch 0.4 0.4 Dimensions 6x6x0.9 4x4x0.9 Package QFN48 QFN32 Note: All dimensions are in millimeters (mm) unless specified. 2015-2021 Microchip Technology Inc. Advanced DS60001371G-Page 1IS1870/71 NOTES: DS60001371G-Page 2 Advanced 2015-2021 Microchip Technology Inc.