Flip flop circuit & same with scan function
AssigneeSamsung Electronics Co., Ltd.
InventorsChung-hee Kim, Min-su Kim
Life of this patent
Estimating the term…
Abstract
A pulse-based flip flop, which outputs a scan input signal and a data signal, may include: a pulse generator to generate a pulse signal for coordinating operation of the flip flop; a multiplexer to receive the data signal, the scan input signal, and a scan enable signal, and to selectively output one of the data signal and the scan input signal in response to the scan enable signal; and a latch unit to transfer therethrough a signal received from the multiplexer according to the pulse signal.
Claims24
A pulse-based flip flop which outputs a scan input signal and a data signal, the flip-flop comprising:
- a pulse generator to generate a pulse signal for coordinating operation of the flip flop;
- a multiplexer to receive the data signal, the scan input signal, and a scan enable signal, and to selectively output one of the data signal and the scan input signal in response to the scan enable signal;
- and
- a latch unit to transfer therethrough a signal received from the multiplexer according to the pulse signal.
A pulse-based flip flop for selectively outputting one of a scan input signal and a data signal, comprising:
- pulse generation means for generating a pulse signal to coordinate operation of the flip flop;
- multiplexer means, operable upon the data signal, the scan input signal, and a scan enable signal, for selectively outputting one of the data signal and the scan input signal in response to the scan enable signal;
- and
- latch means for transferring therethrough a signal received from the multiplexer means according to the pulse signal.
A pulse-based flip flop comprising:
- a pulse generator to generate a pulse signal for coordinating operation of the flip flop;
- a switching circuit, an output thereof being connected to a first node, an input thereof being provided with a signal to be passed through the flip flop;
- an output circuit, connected to the first node, to provide an output of the flip flop on a second node;
- and
- a voltage maintenance type of circuit loop connected to the first node.
Dependencies are inferred from the claim text.