An Improved Delay Cell with Low Power Consumption and Strong Driving Capability

In this paper, a novel modified low-power and strong driving capability delay cell has been proposed, which belongs to one of the three important modules of the MMY-FIO-S40LL-1p2V IP library. The delay cell include DLY3 and DLY5 cells, which can be created as customized standard cell that can used by P&R (Placement & Routing) CAD tool. The input signal and output signal of the delay cell are both 50/50 duty cycle. DLY3 supports 3ns delay with 32-level fine-tuned delay-value adjustment. DLY5 supports 5ns delay with 16-level tuned delay-value adjustment. It has the advantages of strong driving ability, low current, low power consumption, simple wiring, regular array layout, small area, and high reliability. The layout area of DLY3 is 45.574um × 58.123um. The layout area of DLY3 is 50.594um × 31.171um.