Low Energy, Low Cost SoCs

8258 BLE 5 / 15.4 / 2.4GHz Multi-Mode SoC

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The 8258 BLE5.1/15.4 chip with internal Flash and audio support combines the features and functions needed for all 2.4GHz IoT standards. It supports standards and industrial alliance specifications including BLE 5.0 with up to 8 antenna indoor positioning support, BLE Mesh, Zigbee, RF4CE, HomeKit, 6LoWPAN, Thread, ANT and 2.4GHz proprietary standard. For some use cases, the 8258 supports concurrent multi-standards.

The 8258 integrates strong 32-bit MCU, BLE/802.15.4/2.4GHz Radio, 64kB SRAM, 512kB Flash, 14bit ADC with PGA, Analog and Digital Microphone input, stereo audio output, 6-channel PWM, one quadrature decoder (QDEC), flexible IO interfaces, and other peripheral blocks required for IoT (Internet of Things) applications. The 8258 also includes multi-stage power management design allowing ultra-low power operation and making it the ideal candidate for wearable and power-constraint applications.

Key features:

  • 32bit proprietary MCU: Better power performance then ARM M0 with max speed of 48Mhz
  • Memory: Program memory: 512kB Flash,64kB on-chip SRAM with up to 32kB retention
  • RF transceiver:
    1. BLE 5.1 Compliant, 1Mbps,2Mbps, Long Range 125kbps and 500kbps
      2.4GHz proprietary 1Mbps/2Mbps/250kbps/500kbps mode with Adaptive Frequency Hopping feature
      15.4 compliant, 250kbps
      Support full-function BLE location features, angled based positioning with up to 8x antennas
  • Rx Sensitivity: -97dBm@BLE 1Mbps, -100dBm@ IEEE802.15.4 250kbps, -94dBm@ BLE 2Mbps mode, Tx output power: upto +10dBm
  • Power management: Power supply of 1.8V~3.6V with Battery monitor for low battery voltage detection and Brownout detection/shutoff and Power-On-Reset
  • Power performance :
      Transceiver RX mode: 6.7mA without DCDC,3.68mA with DCDC
      Transceiver TX mode (with modem): 6.5mA@ 0dBm without DCDC, 3.57mA with DCDC
      Deepsleep with SRAM retention ~1uA
  • Digital and analog interfaces:
    1. Up to 32/17/10 GPIOs depending on package option
      DMIC (Digital Mic), Dual AMIC (Analog Mic),I2S, Stereo Audio output
      SPI, I2C, USB, Swire, UART with hardware flow control and 7816 protocol support
      Up to 6 channels of differential PWM
      IR transmitter with DMA
      One quadrature decoder, two-phase input selectable from 8 pins
      10-channel (only GPIO input), 14-bit ADC
      4-channel PGA, differential input
      Low power comparator
  • Hardware OTA upgrade and multiple bootswitch, allowing convenient product feature roll outs and upgrades
  • Operating temperature: -40℃~+85℃ (ETversions) or -40℃~ +125℃ (AT versions)
  • Package:
      8258F512ET/AT48/ 48-pin QFN 7×7mm
      8258F512ET/AT32/ 32-pin QFN 5×5mm
      8258F512ET24/, 24-pin QFN 4×4mm
  • Development tools include EVB, reference design and SDK for customers to perform evaluation, quick application prototyping and firmware development.


  • Smartphone and tablet accessories
  • RF Remote Control
  • Sports and fitness tracking
  • Wearable devices
  • Wireless toys
  • Smart Lighting, Smart Home devices
  • Building Automation
  • Smart Grid
  • Intelligent Logistics/Transportation/City
  • Consumer Electronics
  • Industrial Control
  • Health Care
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