Name
Title | ||
|---|---|---|
HERMES Core – A 14nm CMOS and PCM-based In-Memory Compute Core using an array of 300ps/LSB Linearized CCO-based ADCs and local digital processing |
Abstract | ||
|---|---|---|
We present a 256×256 in-memory compute (IMC) core designed and fabricated in 14nm CMOS with backend-integrated multi-level phase-change memory (PCM). It comprises 256 linearized current controlled oscillator (CCO)-based ADCs at a compact 4µm pitch and a local digital processing unit performing affine scaling and ReLU operations. A novel frequency-linearization technique for CCOs is introduced, leading to accurate on-chip matrix-vector-multiply (MVM) when operating over 1 GHz. Measured classification accuracies on MNIST and CIFAR-10 datasets are presented when two cores are employed for deep learning (DL) inference. The measured energy efficiency is 10.5 TOPS/W at a performance density of 1.59 TOPS/mm
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. |
Year | DOI | Venue |
|---|---|---|
2021 | 10.23919/VLSICircuits52068.2021.9492362 | 2021 Symposium on VLSI Technology |
Keywords | DocType | ISSN |
In-memory computing,PCM,ADC,deep learning | Conference | 0743-1562 |
ISBN | Citations | PageRank |
978-1-6654-3009-8 | 0 | 0.34 |
References | Authors | |
0 | 24 | |
Name | Order | Citations | PageRank |
|---|---|---|---|
| Riduan Khaddam-Aljameh | 1 | 1 | 0.82 |
| Milos Stanisavljevic | 2 | 1 | 1.16 |
| Jordi Fornt Mas | 3 | 1 | 0.82 |
| Geethan Karunaratne | 4 | 11 | 4.08 |
| Matthias Braendli | 5 | 158 | 24.28 |
| Feng Liu | 6 | 14 | 3.42 |
| Amit Kumar Singh | 7 | 645 | 63.25 |
| S. M. Müller | 8 | 0 | 0.34 |
| Urs Egger | 9 | 1 | 0.82 |
| Anastasios Petropoulos | 10 | 0 | 0.34 |
| Theodore Antonakopoulos | 11 | 434 | 53.04 |
| Kevin Brew | 12 | 1 | 1.16 |
| Seung-Bok Choi | 13 | 68 | 17.94 |
| Injo Ok | 14 | 1 | 0.82 |
| F. L. Lie | 15 | 0 | 0.34 |
| Nicole Saulnier | 16 | 1 | 1.16 |
| V. Chan | 17 | 0 | 0.34 |
| I. Ahsan | 18 | 0 | 0.34 |
| Narayanan Vijaykrishnan | 19 | 6955 | 524.60 |
| S. R. Nandakumar | 20 | 10 | 3.67 |
| Manuel Le Gallo | 21 | 47 | 9.73 |
| Pier Andrea Francese | 22 | 0 | 0.34 |
| Sebastian, A. | 23 | 267 | 44.35 |
| Evangelos Eleftheriou | 24 | 1590 | 118.20 |