ultra low cost 2.4Ghz soc

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Description and Features

The RoHS-compliant  series with internal Flash is dedicated to 2.4 GHz RF System-On-Chip solution, such as wireless mouse and wireless USB dongle. This SoC  has hardware OTA upgrades support, allowing convenient product feature roll outs and upgrades.   The SoC  also includes a full range of on-chip peripherals for interfacing with external components such as LEDs, sensors, keyboards, and motors. This makes it an ideal single-chip solution for HID (Human Interface Devices) application. The SOC integrates a power-balanced 32-bit MCU, 2.4 GHz Radio, 32 KB (16K+16K) SRAM, 128 KB internal Flash, 14-bit ADC, 6-channel PWM (1-channel IR/IR FIFO/IR DMA FIFO), one quadrature decoder (QDEC), abundant and flexible GPIO interfaces, and nearly all the peripherals needed for 2.4 GHz RF System-On-Chip application development. The SoC also includes multi-stage power management design allowing ultra-low power operation and making it the ideal candidate for power-constraint applications. With the high integration level of 8355, few external components are needed to satisfy customers’ ultra low cost requirements.

Features

Key features:

  • 32bit, 48Mhz MCU
  • Memory:
  • 512kB Flash
  • 48kB on-chip SRAM / 32kB retention
  • RF transceiver:
    • 2.4Ghz RF transceiver in ISM band
    • 2.4GHz proprietary (Nordic Compatible) 1Mbps/2Mbps/250kbps/500kbps mode with Adaptive Frequency Hopping feature
    • Support flexible GFSK/FSK modulation index configuration
    • Support 1-N receiver capability
  • Rx Sensitivity:
    • -94dBm@ 2Mbps
    • RSSI monitoring with+/-1dB resolution
    • 50 tm Ω matched single-pin antenna input
  • Tx output power: up to +10dBm
    • Auto acknowledgement, retransmission and flow control
  • Power management:
    • 1.8V~3.6V with Battery monitor for low battery voltage detection and Brownout detection/shutoff and Power-On-Reset
  • Power performance:
    • RX mode: 9.1mA with LDO
    • Tx mode: -9.5mA @0dBm with LDO
    • Deep sleep with external wakeup: 0.6umA
  • Digital and Analog interfaces:
    • Up to 32/17/2 GPIOs depending on package option
    • SPI, I2C, USB, Swire, UART with hardware flow control
    • Up to 6 channels of differential PWM
    • IR transmitter with DMA
    • 14-bit ADC, 10-channel (only GPIO input)
    • 4-channel PGA
  • RTC and other timers
    • Clock source of 24Mhz&32.786kHz Crystal and 32kHz/24Mhz embedded RC oscillator
    • Three general 32bit timers with four selectable modes in active mode
  • Hardware OTA upgrade and multiple boot switch, allowing convenient product feature roll outs and upgrades

Options:

  • Package:
    • Many option available
  • Operating temperature:
    • -40℃~+85℃ (ET versions)

Applications:

  • Retail/Logistics
  • Private network
  • Keyboard
  • Mouse
  • Beacon

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