General Description

The SPRF24B23A is a SoC solution for wireless USB dongles. By combining a SPRF24B01A compatible 2.4GHz RF transceiver, it supports a wide range of applications including PC peripherals, game peripherals and Smart TV peripherals. With an air data rate of 2 Mbps combined with full speed USB,the SPRF24B23A meets the performance requirements of applications such as wireless mouse, game controllers and remote controls with Smart TVs.
The SPRF24B23A includes:

  • A SPRF24B01A compatible 2.4GHz RF transceiver
  • A Full/Low speed USB 2.0 compliant device controller
  • An 8-bit microcontroller
  • 16k bytes of one-time-program (OTP) memory
  • The SPRC24B23A is Packaged in a compact 6x6mm package,require low cost external BOM..


  • Built in 8-bit SunplusIT CPU core
  • Memory
    • 16KB One Time Program ROM and 512B RAM
    • Built-in 128 byte EEPROM
    • Embedded internal 6MHz oscillation with +/- 1.5% accuracy for the USB low-speed application
  • USB
    • Full/Low Speed USB transceivers (12/1.5Mbps)
    • Conforms to USB 2.0 Full/Low speed specifications
    • Supports 5 endpoints (including EP0); each endpoint can be programmed as IN or OUT endpoint
  • IO
    • Up to 13 general purpose I/Os
    • Programmable I/O direction with resistive pull up/down Control
  • Timer
    • One 14-bit free-run timer with overflow interrupt and real time interrupt
    • Two 8-bit re-loadable timer can be cascaded as a 16-bit timer
  • Built-in 3.3 Volt regulator for USB and internal
    • operation
  • Operating Frequency : 6MHz.
  • Reset Circuit
    • Low Power Voltage Detection(LVD)
    • Low Voltage Reset
    • Watchdog timer reset
    • Software reset
  • 2.4GHz RF
    • GFSK modulation
    • Operation from ISM band 2.400GHz ~ 2.483.5GHz
    • Sensitively up to -87 dBm (@ 2Mbps)
    • Tolerate ±60ppm 16M crystal
    • Low-noise amplifier, power amplifier, modern and data slicer/recovery on chip
    • 250Kbps,1Mbps, 2Mbps air data rate support
  • 40Pin QFN 6 X 6 mm package available

Product Solutions

SunplusIT offer a series of comprehensive ASSP & ASIC product solutions with on-site engineering supports targeting Human Interface Devices, Industry Control, PC External HDD/ODD Drives and PC/NB Camera market segments.

MCU Solutions
  • Wired Optical Mouse
  • Wireless Desktop (Keyboard & Mouse)
  • MCU for HID & Toy Devices

Image Solutions
  • Web camera controllers
  • NB camera controllers




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