US 12,153,457 B2
Cascaded reference based thin-oxide only N-well steering circuit for contention solution in multi-supply designs
Lakshmi Venkata Satya Lalitha Indumathi Janaswamy, Hyderabad (IN); Sree Rama Krishna Chaithnya Saraswatula, Hyderabad (IN); Santosh Yachareni, Hyderabad (IN); Anil Kumar Kandala, Hyderabad (IN); Narendra Kumar Pulipati, Hyderabad (IN); and Shidong Zhou, Hyderabad (IN)
Assigned to XILINX, INC., San Jose, CA (US)
Filed by XILINX, INC., San Jose, CA (US)
Filed on Apr. 20, 2023, as Appl. No. 18/137,387.
Prior Publication US 2024/0353879 A1, Oct. 24, 2024
Int. Cl. G05F 1/46 (2006.01); G05F 1/56 (2006.01)
CPC G05F 1/465 (2013.01) [G05F 1/562 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An integrated circuit (IC) device, comprising:
a voltage divider circuit configured to output a reference voltage based on a first supply voltage;
a first voltage steering circuit configured to output a higher available one of the reference voltage and a second supply voltage as an interim voltage; and
a second voltage steering circuit configured out output a higher available one of the first supply voltage and the interim voltage at an output of the second voltage steering circuit.