8-bit Microprocessor Design Based on TSMC 65nm CMOS Technology

Abstract

This project focuses on the design and implementation of an 8-bit microprocessor using TSMC 65nm CMOS technology. The microprocessor was developed at the transistor level with key components, including a ripple carry adder, logic shifter, multiplexer, 8x8 SRAM, PLA, latch, bus driver, and accumulator. Schematic design, logic functionality, sizing, and layout optimization were conducted using Cadence Virtuoso, achieving a compact chip area of 0.0149 mm² and a critical path delay of 137 ps. The design integrates functional dataflow units, register files, and memory to support reliable instruction execution. Clock cycle timing was simulated with Spectre to ensure functional correctness and latency optimization. The layout was validated with Design Rule Check (DRC) and Layout Versus Schematic (LVS) verification.

Datapath

Datapath

Schematic and Layout

MPU Schematic:

Schemetic
MPU Layout:
Layout
MPU Size:
Size

Simulation Example (Subtraction)

Sub_sim

Please find more details in Final Report, Reference.

Yuan Jiang
Yuan Jiang
ASIC Design & DV

I’m currently actively seeking new graduate full-time opportunities in ASIC Design Verification and RTL Design, and I’d be excited to explore roles that align with my background.