DS0147 datasheet(12/128 Pages) MICROCHIP

12 / 128 page

4. The power supplies for a given I/O bank x are shown as VDDIx and VDDAUXx.

5. At power up and power down the VDDIx and VDDAUXx supply sequencing can cause signal glitches.

Refer to UG0686: PolarFire FPGA I/O User Guide and UG0726: PolarFire FPGA Board Design User Guide

for detailed explanation and recommended steps.

6. The recommended power supply tolerances include DC offset of the supply plus any power supply ripple

over the customer design frequencies of interest, as measured at the device package pins. An example

for a valid power supply that meets the recommendations for the VDD supply is 1.0 V ±10 mV or 1.05

V ±10 mV for DC offset with an additional power supply ripple of ±20 mV for a total of 1.0 V ±30 mV or

1.05 V ±30 mV.

7. Both VDDA and VDD_XCVR_CLK supplies must be powered when any of the transceivers are used. VDD_XCVR_CLK

must power on within the I/O calibration time (as specified for the device in Libero). VDDA and VDD_XCVR_CLK

must both then remain powered during operation. If VDDA needs to be powered down, VDD_XCVR_CLK

must also be powered down. There is no required sequence for powering up or down VDDA and

VDD_XCVR_CLK.

5.2.1

DC Characteristics over Recommended Operating Conditions

The following table lists the DC characteristics over recommended operating conditions.

Table 6 • DC Characteristics over Recommended Operating Conditions

Condition

Unit

Max

Min

Symbol

Parameter

5.6

CIN (GPIO)

Dedicated input pins

Input pin capacitance

2.8

CIN (HSIO)

I/O disabled, high—Z

µA

IL (GPIO)

Input or output leakage current

per pin

I/O disabled, high—Z

µA

IL (HSIO)

VDDIx = 3.3 V

µA

220

137

IPU

Pad pull-up when VIN = 0

VDDIx = 2.5 V

µA

166

102

Pad pull-up when VIN = 0

VDDIx = 1.8 V

µA

115

Pad pull-up when VIN = 0

VDDIx = 1.5 V

µA

Pad pull-up when VIN = 0

VDDIx = 1.35 V

µA

Pad pull-up when VIN = 0

VDDIx = 1.2 V

µA

Pad pull-up when VIN = 0

VDDIx = 3.3 V

µA

187

IPD

Pad pull-down when VIN = 3.3

V (GPIO only)

VDDIx = 2.5 V

µA

160

Pad pull-down when VIN = 2.5

V (GPIO only)

VDDIx = 1.8 V

µA

117

Pad pull-down when VIN = 1.8

VDDIx = 1.5 V

µA

Pad pull-down when VIN = 1.5

Microsemi Proprietary and Confidential. DS0147 Revision 1.0

DC Characteristics

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