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各位好,我在仿真6T CELL讀操作時遇到了一點問題,特向大家求助。0 h% i/ l9 g' \/ D
問題如下:我的所有的高電平的電壓都是2.5V,爲什麽V(2)節點的電壓會高於電源電壓?
' D, P. n6 e$ z: K8 _1 S5 s- I' P說明:讀操作時節點2有初始值高電平,節點1低電平,兩個字線都是高電平。
/ L0 k; c& g% I6 d) I7 ~6 H* DHspice網表如下:
4 @6 d; z. B3 g# a; bm1 2 1 vdd vdd pch w=0.3u l=l
. u9 E2 I: F3 h0 Z9 Km2 2 1 gnd gnd nch w=0.85u l=l* p4 m6 X# @2 B6 }8 Q% H
m3 1 2 gnd gnd nch w=0.85u l=l! l2 q' _6 q, z2 u% N
m4 1 2 vdd vdd pch w=0.3u l=l
* e3 T! `. L/ ]6 @9 ym5 b w 2 gnd nch w=0.58u l=l
+ T/ z& E! e+ {/ n, |m6 bl w 1 gnd nch w=0.58u l=l
, d( n4 T# ~6 `" x8 q9 tc1 b gnd 0.1p" r' U. `& i) [1 l6 W( F& z
c2 bl gnd 0.1p
" R; Q; S; Q; A# Z' Y: w) ivw w gnd dc 0 ac 0 0 pwl(0 0 1n 0 1.00001n t 10n t)
; U8 A8 W' s# E5 J" M0 g2 Z.param t=2.5v l=0.24um, d) s% K& V0 ?; B) R" o
.ic v(2)=2.5 v(1)=0 v(b)=2.5 v(bl)=2.5
& d$ V8 \( @- o" U+ i.temp 25" b! J1 ~' m) z' c1 K
.tran 0.01n 4n # Q1 q" b1 M# v1 x5 ~
.op* Z' Q- j- e5 c) j
.print i(*)
* ?2 {$ {* D4 J.end
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By xczhang at 2009-03-30/ z+ n1 U2 ]2 r
4 X% Y# D# {- A, v# z# HBy xczhang at 2009-03-30 |
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