Work

MEGATRON: a 28nm Analog PCM CiM/Digital System-on-Chip for Edge GenAI at 57.5 TOPS/W and 1.52 Mparam/mm${}^2$

Year: 2026

Type: preprint

Abstract: We present MEGATRON, a heterogeneous Edge GenAI System-on-Chip in 28nm FD-SOI CMOS technology combining a non-volatile analog in-memory-computing engine based on a 4Mi-cell phase-change memory (PCM) array with a digital RISC-V-based flexible neural processing unit. MEGATRON demonstrates up to 3.5 TOPS/W using the RISC-V processors and 57.5 TOPS/W with PCiM, at a storage density of 1.52 Mparam/mm${}^2$ with 4-bit effective weight precision.

Source: arXiv (Cornell University)

DOI: 10.48550/arxiv.2609.35254

Authors: Nadalini, Alessandro, Garofalo, Angelo, Greco, Lorenzo, Belano, Andrea, Antolini, Alessio, Zavalloni, Francesco, Lico, Andrea, Zurla, Riccardo, Calvetti, Emanuela, Croce, Luigi, Pasotti, Marco, Cabrini, Alessandro, Scarselli, Eleonora Franchi, Rossi, Davide, Conti, Francesco

Institutions: University of Bologna, STMicroelectronics (Italy), University of Pavia

Language: English

Topic: Advanced Memory and Neural Computing

Subfield: Electrical and Electronic Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: green

OpenAlex ID: W7214784985

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