Patent Number: 7,787,315

Title: Semiconductor device and method for detecting abnormal operation

Abstract: A semiconductor device includes a pull-up unit pulling up a voltage of an output node to a first voltage in response to a control signal, a photo sensing unit pulling down a voltage of the output node to a second voltage in response to an incident light, and a CPU, the CPU reset in response to the voltage of the output node produced in response to the incident light.

Inventors: Lee; Tae-Hun (Hwaseong-si, KR), Kim; Jung Hyun (Seoul, KR)

Assignee: Samsung Electronics Co., Ltd.

International Classification: G11C 7/00 (20060101)

Expiration Date: 8/31/12018