Patent ID: 6584577
Filing Date: 2003-06-24
Classification: G11C

Abstract:
A device for measuring the response time of a circuit, the circuit having an output for providing a response to a stimulus at an input node thereof, the device comprising first circuitry having a clock node and an output, said first circuitry being connected to store an output condition, said output condition corresponding to a state of said circuit output at the time of occurrence of a clock pulse at said clock node, the device further comprising second circuitry and third circuitry, said second circuitry being responsive to a second circuitry input signal at its input to provide said stimulus at said input node of said circuit, and said third circuitry being responsive to a third circuitry input signal at its input to provide a clock pulse at said clock node whereby said response time is determined by the time between said second circuitry input signal and said third circuitry input signal, wherein said second circuitry has an output connected to said input node, and said third circuitry has an output connected to said clock node, and a delay between the input to said second circuitry and its output is substantially the same as a delay between the input and output of the third circuitry.