公开(公告)号：BR9700584A

公开(公告)日：1998-10-27

申请号：BR9700584

申请日：1997-04-22

Applicant: MOTOROLA INC

Inventor： LUDWIG THOMAS ,  NG RICHARD

IPC: H03K19/0175 ,  H03K19/0185 ,  H04B7/26

Abstract: A bi-directional voltage translator (102) includes a first port (300/302), a second port (302/300), and a switch circuit (310). The first port (300/302) communicates a first signal at a first voltage or a second voltage (V1/V2). The second port (302/300) communicates a second signal at the first voltage or a third voltage (V2/V1). The second and third voltages (V1/V2) are different. The switch circuit (310) is coupled to the first port (300/302) and the second port (302/300). The switch circuit (310), responsive to the first signal at the first voltage and the second signal at the third voltage (V2/V1), communicates to the second port (302/300) the second signal at the first voltage. The switch circuit (310), responsive to the second signal at the first voltage and the first signal at the second voltage (V1/V2), communicates to the first port (300/302) the first signal at the first voltage.