DocumentCode
2868667
Title
Cascading Techniques for a High-Speed Memory Interface
Author
Gu, Zheng ; Gregorius, Peter ; Kehrer, Daniel ; Neumann, Lydia ; Neuscheler, Evelyn ; Rickes, Thomas ; Ruckerbauer, Hermann ; Schledz, Ralf ; Streibl, Martin ; Zielbauer, Juergen
Author_Institution
Qimonda, Munich
fYear
2007
fDate
11-15 Feb. 2007
Firstpage
234
Lastpage
599
Abstract
A memory interface operating up to 5.3Gb/s in a 70nm standard DRAM process is presented. The interface uses differential point-to-point signaling in a chain of 6 devices, in transparent- or resample-repeat mode. Transparent-repeat mode measurements at 4.8Gb/s show eye reduction of 8% Ul per device due to jitter accumulation. The last device in the repeat chain has an eye opening of 0.5UI at BER < 1012. The transparent-repeat mode consumes 40% less power and has 80% less latency than resample mode
Keywords
DRAM chips; cascade systems; system buses; 5.3 Gbit/s; 70 nm; DRAM process; cascading techniques; differential point-to-point signaling; high-speed memory interface; transparent-repeat mode; Bit error rate; Circuits; Clocks; Jitter; Packaging; Performance gain; Random access memory; Repeaters; Sampling methods; Testing;
fLanguage
English
Publisher
ieee
Conference_Titel
Solid-State Circuits Conference, 2007. ISSCC 2007. Digest of Technical Papers. IEEE International
Conference_Location
San Francisco, CA
ISSN
0193-6530
Print_ISBN
1-4244-0853-9
Electronic_ISBN
0193-6530
Type
conf
DOI
10.1109/ISSCC.2007.373380
Filename
4242351
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