US 12,009,815 B2
Electronic device
Seung Ho Lee, Icheon (KR); and Gyu Nam Kim, Icheon (KR)
Assigned to SK hynix Inc., Icheon (KR)
Filed by SK hynix Inc., Icheon (KR)
Filed on Apr. 28, 2022, as Appl. No. 17/732,337.
Claims priority of provisional application 63/181,013, filed on Apr. 28, 2021.
Prior Publication US 2022/0352712 A1, Nov. 3, 2022
Int. Cl. H03K 19/0185 (2006.01); H02H 9/04 (2006.01)
CPC H03K 19/018521 (2013.01) [H02H 9/046 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An electronic device using, as power, a first voltage and a second voltage lower than the first voltage, the electronic device comprising:
an internal circuit configured to be driven by the second voltage, and output an output signal having a level corresponding to the second voltage; and
an interface circuit configured to receive the output signal, the first voltage, and the second voltage, shift the output signal to a level corresponding to the first voltage, and provide the shifted output signal to a pad,
wherein the interface circuit includes an ESD (electrostatic discharge) block connected to the pad, and
wherein the interface circuit further includes a plurality of transistors and the plurality of transistors of the interface circuit are driven at the second voltage,
wherein the ESD block includes an electrostatic detection circuit configured to set a first setup voltage based on a first control voltage and generate an electrostatic detection signal by detecting static electricity contained in the first setup voltage.