SIMPLE NOISE MODEL AND LOW-NOISE DATA-OUTPUT BUFFER FOR ULTRAHIGH-SPEED MEMORIES

被引:4
作者
WADA, T [1 ]
EINO, M [1 ]
ANAMI, K [1 ]
机构
[1] MITSUBISHI ELECTR CO,KITA ITAMI WORKS,ITAMI,HYOGO 664,JAPAN
关键词
D O I
10.1109/4.62195
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
An analytic noise (voltage bounce on chip-internal Vec/GND lines) model for data-output buffers is described. The model indicates that tr (switching time of output transistor) greater than L X G0 (product between the parasitic inductance on Vec/GND lines and the conductance of the output transistor) and small output voltage amplitude are required in order to reduce the noise voltage. The model gives VLSI circuit designers a rough estimation of the Vec/GND line noise. A low-noise data-output buffer combined with a voltage down converter (VDC) is newly proposed. It decreases the peak noise voltage by one-half without degrading the access time. © 1990 IEEE
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页码:1586 / 1588
页数:3
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