Article Dans Une Revue Journal of Instrumentation Année : 2017

AM06: the Associative Memory chip for the Fast TracKer in the upgraded ATLAS detector

Résumé

This paper describes the AM06 chip, which is a highly parallel processor for pattern recognition in the ATLAS high energy physics experiment. The AM06 contains memory banks that store data organized in 18 bit words; a group of 8 words is called "pattern". Each AM06 chip can store up to 131 072 patterns. The AM06 is a large chip, designed in 65 nm CMOS, and it combines full-custom memory arrays, standard logic cells and serializer/deserializer IP blocks at 2 Gbit/s for input/output communication. The overall silicon area is 168 mm2 and the chip contains about 421 million transistors. The AM06 receives the detector data for each event accepted by Level-1 trigger, up to 100 kHz, and it performs a track reconstruction based on hit information from channels of the ATLAS silicon detectors. Thanks to the design of a new associative memory cell and to the layout optimization, the AM06 consumption is only about 1 fJ/bit per comparison. The AM06 has been fabricated and successfully tested with a dedicated test system.

Dates et versions

hal-04529722 , version 1 (02-04-2024)

Identifiants

Citer

A Annovi, M.M Beretta, G Calderini, F Crescioli, L Frontini, et al.. AM06: the Associative Memory chip for the Fast TracKer in the upgraded ATLAS detector. Journal of Instrumentation, 2017, 12 (04), pp.C04013-C04013. ⟨10.1088/1748-0221/12/04/c04013⟩. ⟨hal-04529722⟩
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