Delay modulation circuit and semiconductor memory containing delay modulation circuit

The invention relates to a delay modulation circuit. The delay modulation circuit comprises a signal input control module, a delay module and a counting module, wherein the signal input control moduleis provided with a first input leading-in end, a second input leading-in end and an input leading-out end; the time delay module is provided with a first delay input end, a second delay input end, afirst delay output end and a second delay output end; the input leading-out end is connected with the first delay input end; the second delay input end is connected with the first delay output end; the counting module is provided with a first counting input end, a second counting input end and a counting output end; the first counting input end is connected with the second delay output end; the second counting input end is connected with the input leading-out end; the counting output end is connected with the second input leading-in end; a voltage-stabilizing modulation voltage is applied to the delay module. By adopting the delay modulation circuit, the delay is basically unchanged when the working parameters of a chip are changed, thus making the chip performance of a semiconductor memory better. The invention further relates to a semiconductor memory comprising the delay modulation circuit.