طراحی یک سلول جدید ورودی انتشارگیت در فناوری آتوماتای سلولی نقطه کوانتومی

الموضوعات :

حمیدرضا صدر ارحامی ¹ (دانشکده مهندسی کامپیوتر- واحد نجف‌آباد، دانشگاه آزاد اسلامی، نجف‌آباد، ایران)
سید محمد علی زنجانی ² (مرکز تحقیقات ریزشبکه‌های هوشمند- واحد نجف‌آباد، دانشگاه آزاد اسلامی، نجف‌آباد، ایران)
مهدی دولتشاهی ³ (دانشکده مهندسی برق- واحد نجف‌‌آباد، دانشگاه آزاد اسلامی، نجف‌‌آباد، ایران)
بهرنگ برکتین ⁴ (مرکز تحقیقات کلان داده- واحد نجف‌آباد، دانشگاه آزاد اسلامی، نجف‌آباد، ایران)

تاريخ الإرسال : 01 الخميس , ذو الحجة, 1443 تاريخ التأكيد : 05 الأحد , ربيع الثاني, 1444 تاريخ الإصدار : 05 الأحد , ربيع الثاني, 1444

الکلمات المفتاحية: فناوری نانو, توان پایین, قطبش, آتوماتای سلولی نقطه کوانتومی, ورودی انتشارگیت,

ملخص المقالة :

آتوماتای سلولی نقطه کوانتومی (QCA) یک فناوری جدید با سرعت بالا، مصرف توان کم، چگالی بالا و پیچیدگی پایین نسبت به فناوری‌های قدیمی مانند نیم‌رسانای اکسید-فلز مکمل (CMOS) است. از طرفی، روش ورودی انتشارگیت (GDI)، یک روش موفق در سامانه‌‌‌های کم‌مصرف است. این روش باعث کاهش پیچیدگی، کاهش مساحت و کاهش میزان مصرف انرژی در مدارهای طراحی‌‌شده با این روش است. این روش، اجرای طیف گسترده‌‌ای از توابع منطقی پیچیده را تنها با استفاده از دو ترانزیستور به‌‌عنوان بلوک اصلی، امکان‌‌پذیر می‌‌کند. در این مقاله، بلوک GDI مبتنی بر QCA تنها با 11 سلول پیشنهاد شده که به‌‌عنوان واحد طراحی استاندارد، قادر به اجرای توابع اساسی مانند AND، OR، NOT، BUFFER، MUX و XOR برای پیاده‌‌سازی مدارهای دیجیتال است. نتایج شبیه‌‌سازیِ توابع، توسط نرم‌افزار QCADesigner در فناوری 18 نانومتر، نشان ‌‌دهنده عملکرد بهتر سلول هم‌‌سطح پیشنهادی است؛ به‌‌نحوی که سلول پیشنهادی، 1 سیکل ساعت تاخیر برای اجرای عملکردها دارد. همچنین تحلیل میزان مصرف انرژی و توان مصرفی مدارهای طراحی‌‌شده توسط نرم‌افزار QCADesigner انجام شده است. 31 درصد کاهش در تعداد سلول‌‌ها، 50 درصد کاهش در سطح و 17 درصد کاهش در اتلاف انرژی کل از مزایای طرح پیشنهادی نسبت به طرح‌های پیشین است.

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