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54.14.6 PCC Characteristics
Speed requirements for all 8/10/12/14-bits are:
pclk: 48 MHz at 3.3V
pclk: 28 MHz at 1.8V
APB clock minimum is 2 × N pclk
Figure 54-23. PCC Signaling
54.15 USB Characteristics
The USB on-chip buffers comply with the Universal Serial Bus (USB) v2.0 standard. All AC parameters
related to these buffers can be found within the USB 2.0 electrical specifications.
The USB interface is USB-IF certified:
TID 40001782 - Peripheral Silicon > Low/Full Speed > Silicon Building Blocks
TID 120000724 - Embedded Hosts > Full Speed
Electrical configuration required to be USB-compliant:
the CPU frequency must be higher than 16 MHz when USB is active (No constraint for USB suspend
mode)
the operating voltages must be 3.3V (Min. 3.0V, Max. 3.6V).
the GCLK_USB frequency accuracy source must be less than:
in USB device mode, 48MHz +/-0.25%
in USB host mode, 48MHz +/-0.05%
SAM D5x/E5x Family Data Sheet
Electrical Characteristics at 85°C
© 2019 Microchip Technology Inc.
Datasheet
DS60001507E-page 2033