Design of 32 Bit Data path Unit of ARM7 Microprocessor using Sub threshold Current Mode Logic

Abstract

In the present days, Very Large Scale Integration (VLSI) is focused upon designing energy efficient electronic devices. These are nothing but the embedded gadgets whose core is a processor. Advanced RISC Machine (ARM) is one of the families of computer processors which have an reduced instruction set architecture. Current Mode Logic (CML) is one of the low power logics which is used to design circuits with an extended battery life. The circuits built using this technique are capable of giving a dependable and sturdy system. In this paper, the proposed ARM7 microprocessor has been designed using the Sub threshold Current Mode Logic (STCML). All the design blocks operate in the sub threshold region at 0.24V power supply. The Data path of ARM7 has been implemented using Cadence Virtuoso Tool in 45nm technology. The results of the blocks have been viewed on Spectra Simulator and the power and delay calculations have been computed. The propound microprocessor is capable of finding place in DSP and other Embedded applications.