Samsung Electronics Co., Ltd.

Daesung Electric Co., Ltd.

In-Sub Shin

Wook Hwan Kim

Yong-Hwan Kim

Hyung-ock Kim

Jae-Han Jeon

Hong-chan Eom

Yeong-Sik Kim

Gyu-Ryong Choi

In one embodiment, the voltage droop monitoring circuit includes a ring oscillator circuit block configured to generate a plurality of oscillation signals and configured to output a selected oscillation signal from one of the plurality of oscillation signals based on a first control signal. The first control signal is based on a power supply voltage of a functional circuit block. The voltage droop monitoring circuit further includes a counter configured to generate a count value based on the selected oscillation signal, and a droop detector configured detect droop in the power supply voltage of the functional circuit block based on the count value and at least one threshold value.

Voltage droop monitoring circuits, system-on chips and methods of operating the system-on chips

A system-on-chip and an electronic device including the system-on-chip are provided. The system-on-chip includes a power switch, a logic block, a memory device, and a buffer. The power switch is coupled between a first power supply line and a virtual power supply line, and turns on in response to a switch control signal. The logic block is coupled between the virtual power supply line and a ground line. The memory device is coupled between a second power supply line and the ground line. The buffer is coupled between the second power supply line and the ground line, and generates the switch control signal based on a sleep signal.

System-on-chip and electronic device having the same

Growing community of inventors

Suwon-si, South Korea

In-Sub Shin