DS892 Datasheet, PDF (10/79 Pages) Xilinx, Inc – DC and AC Switching Characteristics

Kintex UltraScale FPGAs Data Sheet: DC and AC Switching Characteristics
Power-On/Off Power Supply Sequencing
The recommended power-on sequence is V_CCINT/V_{CCINT_IO}, V_CCBRAM, V_CCAUX/V_{CCAUX_IO}, and V_CCO to
achieve minimum current draw and ensure that the I/Os are 3-stated at power-on. The recommended
power-off sequence is the reverse of the power-on sequence. If V_CCINT/V_{CCINT_IO} and V_CCBRAM have the
same recommended voltage levels, they can be powered by the same supply and ramped simultaneously.
V_{CCINT_IO} must be connected to V_CCINT. If V_CCAUX/V_{CCAUX_IO} and V_CCO have the same recommended
voltage levels, they can be powered by the same supply and ramped simultaneously. V_CCAUX and V_{CCAUX_IO}
must be connected together. When the current minimums are met, the device powers on after the
V_CCINT/V_{CCINT_IO}, V_CCBRAM, V_CCAUX/V_{CCAUX_IO}, and V_CCO supplies have all passed through their power-on
reset threshold voltages. The device must not be configured until after V_CCINT is applied.
V_CCADC and V_REF can be powered at any time and have no power-up sequencing recommendations.
The recommended power-on sequence to achieve minimum current draw for the GTH or GTY transceivers
is V_CCINT, V_MGTAVCC, V_MGTAVTT OR V_MGTAVCC, V_CCINT, V_MGTAVTT. There is no recommended sequencing for
V_MGTVCCAUX. Both V_MGTAVCC and V_CCINT can be ramped simultaneously. The recommended power-off
sequence is the reverse of the power-on sequence to achieve minimum current draw. If these
recommended sequences are not met, current drawn from V_MGTAVTT can be higher than specifications
during power-up and power-down.
DS892 (v1.12) April 1, 2016
Product Specification
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