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IS1871
  • IS1871

IS1871

In Production

Microchip IS187xSF BLE SoCs are designed for app enabled accessories and IoT applications. Operating in the 2.4GHz ISM band radio, the IS187xSF are certified to Bluetooth core specification version 5.0. It also supports Federal Information Processing Standard (FIPS) compliant encryption support for secure data connections.Customers can finish their design easily and efficiently. IS187xSF SOC combine transceiver and baseband function to decrease the external components. In addition, the free Bluetooth stack firmware is provided for these products to become embedded Bluetooth LE solution.For portable and wearable applications, the product optimized power design helps to minimize current consumption for extending battery life and narrow down the package size as small as possible.The BM-7...

Microchip Technology IS1871 Product Info

16 April 2026 0

Parameters

ADC Channels

6

Digital Audio Out

No

GPIO

15

Host Interface

UART

Memory Type

Flash

PWM

Yes

Package Size (mm)

4 x 4

Pin Count

32

RSSI

Yes

RX Sensitivity (dBm)

-90

SPI

No

Temp Sensor

Yes

Wireless Technology

Bluetooth LE

TX Output Power (dBm)

0

Operating Temp (°C) Min

-40

Operating Voltage (V) Min

1.9

Operating Temp (°C) Max

85

Operating Voltage (V) Max

3.6

Command Interface

NA

Flash (KB)

256

Encryption

AES-CMAC

Features

  • Bluetooth 5 Certified
  • 1.9V~3.6V (VDD) operating range
  • Low-power consumption
  • Average current: TX 3.87mA/RX 3.06mA with Buck,@ VBAT=3.0V and 18.75ms Connection Interval
  • UART interface
  • Main X’tal : 32MHz
  • 256K Bytes embedded flash memory
  • Temperature sensor supported
  • Flexible GPIO pin configuration
  • 7-ch 12 bits ADC supported for battery and voltage detection
  • Provides proprietary BeaconThings® service
  • ISM Band 2.402 to 2.480 GHz operation
  • Channels 0-39
  • Rx sensitivity: -90dBm@ BLE, typical
  • Programmable Tx Power: -25 to +3 dBm
  • RSSI monitor
  • Available in certified modules BM71
  • Description

    Microchip IS187xSF BLE SoCs are designed for app enabled accessories and IoT applications. Operating in the 2.4GHz ISM band radio, the IS187xSF are certified to Bluetooth core specification version 5.0. It also supports Federal Information Processing Standard (FIPS) compliant encryption support for secure data connections.


    Customers can finish their design easily and efficiently. IS187xSF SOC combine transceiver and baseband function to decrease the external components. In addition, the free Bluetooth stack firmware is provided for these products to become embedded Bluetooth LE solution.


    For portable and wearable applications, the product optimized power design helps to minimize current consumption for extending battery life and narrow down the package size as small as possible.

    The BM-71-PICtail or BM71 modules are recommended for evaluation. Please contact your authorized Microchip representative if IC samples are required.


    Firmware Release Summary, see Software Release Notes for details:

    FW 2.04 (online only) - fixed ANSII vulnerabilities and other bugs for IS1870, IS1871, BM70, BM71.

    BM70BLEx1FC2-0B05BA - FW 2.03 is a maintenance release for IS1870, IS1871, BM70, and BM71. Firmware version 2.0.3 adds new features/ removes limitations in previous release 1.11 and fixes Sweyntooth vulnerability.

    BM70BLEx1FC2-0B04AA - FW 1.11 - Fixes bug with invalid Bluetooth address. Refer to Errata document for more information.

    BM70BLEx1FC2-0B03AA - FW 1.06 - Added support for the BM71 among other bug fixes. 

    BM70BLEx1FC2-0002AA - FW 1.03 - Initial Release.

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