˙Support Full-Speed and Low-Speed USB 1.1 specification
˙Built-in USB Transceiver and 3.3V regulator
˙Support USB Suspend and Resume function
˙One Control IN/OUT, two INT endpoints
˙Support PS2 compatible interface share with USB interface
˙192 bytes internal SRAM
˙8-bit RISC CPU core
˙Support Master/Slave SPI serial Communication Interface
˙Support up to two user configured endpoints
Up to three 8-byte data endpoints (EP0,EP1,EP2)
˙Internal Oscillator
Internal +/- 4% 24MHz Oscillator
0.25% Accuracy after USB traffic is received
Supply 24MHz or 16MHz or 12MHz clock output
˙General-purpose programmable-level IO interface
˙5V power supply only; GPIO support 1.8V~5V interface
˙Supply 3.3V voltage
˙Support SSC to reduce EMI
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