US 11,996,846 B2
Latch circuit, flip-flop circuit including the same
Byoung Gon Kang, Seoul (KR); Woo Kyu Kim, Daegu (KR); Tae Jun Yoo, Hwaseong-si (KR); and Dal Hee Lee, Seoul (KR)
Assigned to SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed by SAMSUNG ELECTRONICS CO., LTD., Suwon-si (KR)
Filed on Jul. 11, 2022, as Appl. No. 17/861,939.
Application 17/861,939 is a continuation of application No. 17/215,838, filed on Mar. 29, 2021, granted, now 11,387,817.
Claims priority of application No. 10-2020-0045919 (KR), filed on Apr. 16, 2020; and application No. 10-2020-0173642 (KR), filed on Dec. 11, 2020.
Prior Publication US 2022/0345118 A1, Oct. 27, 2022
Int. Cl. H03K 3/037 (2006.01); H03K 3/012 (2006.01); H03K 3/3562 (2006.01); H03K 19/20 (2006.01)
CPC H03K 3/0372 (2013.01) [H03K 3/012 (2013.01); H03K 3/3562 (2013.01); H03K 19/20 (2013.01)] 7 Claims
OG exemplary drawing
 
1. A flip-flop circuit comprising:
a first latch circuit connected between a first node and a second node; and
a second latch circuit connected between the second node and a third node,
wherein the first latch circuit comprises:
a first p-type transistor, a second p-type transistor, and a first n-type transistor connected in series between a power supply terminal and a power ground terminal, which the first node is a common drain end of the second p-type transistor and the first n-type transistor; and
a NOR circuit configured to receive a signal of the first node and an inverted clock signal, perform a NOR operation, and output an operation result to the second node, and
wherein the NOR circuit includes a third p-type transistor and a fourth p-type transistor connected in series between the power supply terminal and the second node, which a common end between the third p-type transistor and the fourth p-type transistor is connected to a gate of the first p-type transistor.