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AT83C5136-RDTUL 数据表(PDF) 11 Page - ATMEL Corporation |
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AT83C5136-RDTUL 数据表(HTML) 11 Page - ATMEL Corporation |
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11 / 171 page ![]() 11 AT83C5134/35/36 7683B–USB–03/07 Table 12. Power Signal Description Signal Name Type Description Alternate Function AVSS GND Alternate Ground AVSS is used to supply the on-chip PLL and the USB PAD. - AVDD PWR Alternate Supply Voltage AVDD is used to supply the on-chip PLL and the USB PAD. - VSS GND Digital Ground VSS is used to supply the buffer ring and the digital core. - VDD PWR Digital Supply Voltage VDD is used to supply the buffer ring on all versions of the device. It is also used to power the on-chip voltage regulator of the Standard versions or the digital core of the Low Power versions. - VREF O USB pull-up Controlled Output VREF is used to control the USB D+ 1.5 kΩ pull up. The Vref output is in high impedance when the bit DETACH is set in the USBCON register. - |
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