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IEICE TRANSACTIONS on Electronics

A 0.18 µm 32 Mb Embedded DRAM Macro for 3-D Graphics Controller

Akira YAMAZAKI, Takeshi FUJINO, Kazunari INOUE, Isamu HAYASHI, Hideyuki NODA, Naoya WATANABE, Fukashi MORISHITA, Katsumi DOSAKA, Yoshikazu MOROOKA, Shinya SOEDA, Kazutami ARIMOTO, Setsuo WAKE, Kazuyasu FUJISHIMA, Hideyuki OZAKI

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Summary :

A 23.3 mm2 32 Mb embedded DRAM (eDRAM) macro has been fabricated using 0.18 µm triple-well 4-metal embedded DRAM process technology to realize an accelerated 3-D graphics controller. The array architecture, using a dual-port sense amplifier, achieves the column access latency of two cycles at 222 MHz and a peak data rate of 14.2 4 GB/s at 4 macros. The process cost has been kept low by using VT-MOS circuit technology and taking advantage of a characteristic of dual-gate oxide process technology. A tRAC of 11.6 ns at 2.0 V is achieved using a 'pre-detect redundancy' circuit.

Publication
IEICE TRANSACTIONS on Electronics Vol.E85-C No.9 pp.1697-1708
Publication Date
2002/09/01
Publicized
Online ISSN
DOI
Type of Manuscript
PAPER
Category
Electronic Circuits

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