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XA3S500E-4PQG208I Datasheet, PDF (7/37 Pages) Xilinx, Inc – Proven advanced 90-nanometer process technology
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Power Supply Specifications
Table 3: Supply Voltage Thresholds for Power-On Reset
Symbol
Description
Min
Max
Units
VCCINTT
VCCAUXT
VCCO2T
Threshold for the VCCINT supply
Threshold for the VCCAUX supply
Threshold for the VCCO Bank 2 supply
0.4
1.0
V
0.8
2.0
V
0.4
1.0
V
Notes:
1. VCCINT, VCCAUX, and VCCO supplies to the FPGA can be applied in any order. However, the FPGA’s configuration source (SPI Flash, parallel
NOR Flash, microcontroller) might have specific requirements. Check the data sheet for the attached configuration source.
2. To ensure successful power-on, VCCINT, VCCO Bank 2, and VCCAUX supplies must rise through their respective threshold-voltage ranges with
no dips at any point.
Table 4: Supply Voltage Ramp Rate
Symbol
Description
Min
Max
Units
VCCINTR
Ramp rate from GND to valid VCCINT supply level
0.2
50
ms
VCCAUXR
Ramp rate from GND to valid VCCAUX supply level
0.2
50
ms
VCCO2R
Ramp rate from GND to valid VCCO Bank 2 supply level
0.2
50
ms
Notes:
1. VCCINT, VCCAUX, and VCCO supplies to the FPGA can be applied in any order. However, the FPGA’s configuration source (SPI Flash, parallel
NOR Flash, microcontroller) might have specific requirements. Check the data sheet for the attached configuration source.
2. To ensure successful power-on, VCCINT, VCCO Bank 2, and VCCAUX supplies must rise through their respective threshold-voltage ranges with
no dips at any point.
Table 5: Supply Voltage Levels Necessary for Preserving RAM Contents
Symbol
Description
VDRINT
VDRAUX
VCCINT level required to retain RAM data
VCCAUX level required to retain RAM data
Notes:
1. RAM contents include configuration data.
Min
Units
1.0
V
2.0
V
DS635 (v2.0) September 9, 2009
www.xilinx.com
Product Specification
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