Patent ID: 11946973
Assignee: TEXAS INSTRUMENTS INCORPORATED
Field: Measurement (Instruments)
Classification: CPC G  H | IPC G

Claim 0:
1. A system, comprising:
a scan flip-flop that includes a data input, a clock input, a scan data input, a scan enable input, and an output, wherein the scan flip-flop also includes:
a first transistor and a second transistor coupled to the data input;
a third transistor coupled to the clock input and a fourth transistor coupled to an inverse clock input;
a fifth transistor coupled to the scan enable input and the first transistor;
a sixth transistor coupled to an inverse scan enable input and the second transistor; and
an input multiplexer that includes the first transistor, second transistor, fifth transistor, and sixth transistor, and also includes a seventh transistor coupled to the scan data input, an eighth transistor coupled to the scan data input, a ninth transistor coupled to the scan enable input, and a tenth transistor coupled to the inverse scan enable input, wherein the input multiplexer also includes:
a first diode-connected transistor coupled between a first voltage rail and the seventh transistor; and
a second diode-connected transistor coupled between a second voltage rail and the eighth transistor.