US 12,323,140 B2
Integrated circuit (IC) with wide-range I/O supply
Sneha Shetty, Bangalore (IN); and Rajesh Yadav, Bangalore (IN)
Assigned to Texas Instruments Incorporated, Dallas, TX (US)
Filed by TEXAS INSTRUMENTS INCORPORATED, Dallas, TX (US)
Filed on Oct. 28, 2022, as Appl. No. 17/975,880.
Claims priority of provisional application 63/348,353, filed on Jun. 2, 2022.
Prior Publication US 2023/0396251 A1, Dec. 7, 2023
Int. Cl. H03K 19/0175 (2006.01)
CPC H03K 19/017509 (2013.01) 24 Claims
OG exemplary drawing
 
1. An integrated circuit, comprising:
on-chip circuitry configured to operate in a core voltage domain; and
an input/output (I/O) module coupled to the on-chip circuitry, the I/O module configured to transmit to and receive data from an I/O node, the I/O module comprising a transmit path circuit and a receive path circuit, the transmit path circuit and the receive path circuit both operable to convert a data signal between the core voltage domain and one of a first voltage domain and a second voltage domain responsive to a mode select signal,
the transmit path circuit comprising:
a first pull-up portion operable in the first voltage domain responsive to the mode select signal in a first logic state; and
a second pull-up portion operable in the second voltage domain responsive to the mode select signal in a second logic state,
the first pull-up portion and the second pull-up portion both configured to drive the I/O node to a logic-high state depending on a logic state of the data signal.