USB MCU
- AT83C5134：8-Bit Microcontroller, Full-Speed USB, 8KB Memory
- AT83C5135：8-Bit Microcontroller, Full-Speed USB, 16KB Memory
- AT83C5136：8-Bit Microcontroller, Full-Speed USB, 32KB Memory
- AT89C5130A-M：8-Bit Flash Microcontroller, Full-Speed USB Device
- AT89C5131A-L：8-Bit Flash Microcontroller, Full Speed USB Device Specification Version 1.1 and 2.0
- AT89C5131A-M：8-Bit Flash Microcontroller, Full-Speed USB Device, Extended Range Power Supply
