PCF8579T データシートの表示（PDF） - NXP Semiconductors.
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PCF8579T Datasheet PDF : 41 Pages
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NXP Semiconductors
PCF8579
LCD column driver for dot matrix graphic displays
Table 5. Discrimination ratios
Discrimination
ratios
Multiplex rate
1:8
V-----o-V--f-f-o--(-p-R--e-M-r---S---)
0.297
V-----o---n--(--R----M----S---)
Voper
0.430
D = V-V----o-o--fn-f--(-(-R-R--M-M----SS---))
1.447
V-----o---p--e---r
Vth
3.370
1:16
0.245
0.316
1.291
4.080
Figure 5 shows the values of Table 4 as graphs.
1:24
0.214
0.263
1.230
4.680
1.0
Vbias
Voper
0.8
0.6
0.4
0.2
V2/Voper
V3/Voper
V4/Voper
V5/Voper
msa838
0
1:8
1:16
1:24
1:32
multiplex rate
Fig 5.
Vbias = V2, V3, V4, V5; see Table 4.
Vbias/Voper as a function of the multiplex rate
1:32
0.193
0.230
1.196
5.190
PCF8579_5
Product data sheet
Rev. 05 — 11 May 2009
© NXP B.V. 2009. All rights reserved.
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