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Samsung ASIC
4-57
STD130
PvODyz
Open Drain Output Buffers
Switching Characteristics
(Typical process, 25
°
C, 1.8V, 3.3V, t
R
/t
F
=0.15ns, CL: Capacitive Load[pF])
PHOD12SH
PHOD16SH
PHOD20SH
PHOD24SH
Path
Parameter
Delay [ns]
CL = 50.0pF
3.729
4.463
1.275
3.729
4.560
1.351
<
Delay Equations [ns]
Group1*
1.123 + 0.052*CL
2.623 + 0.037*CL
1.275 + 0.000*CL
1.123 + 0.052*CL
2.721 + 0.037*CL
1.350 + 0.000*CL
Group2*
1.164 + 0.051*CL
2.809 + 0.033*CL
1.275 + 0.000*CL
1.164 + 0.051*CL
2.906 + 0.033*CL
1.351 + 0.000*CL
Group3*
1.164 + 0.051*CL
2.955 + 0.031*CL
1.275 + 0.000*CL
1.164 + 0.051*CL
3.053 + 0.031*CL
1.351 + 0.000*CL
TN to PAD
tF
tPHL
tPLZ
tF
tPHL
tPLZ
EN to PAD
*Group1 : CL < 50, *Group2 : 50 =
Path
Parameter
Delay [ns]
CL = 50.0pF
3.076
4.268
1.276
3.076
4.365
1.351
<
Delay Equations [ns]
Group1*
1.077 + 0.040*CL
2.752 + 0.030*CL
1.275 + 0.000*CL
1.077 + 0.040*CL
2.849 + 0.030*CL
1.351 + 0.000*CL
Group2*
1.140 + 0.039*CL
2.935 + 0.027*CL
1.275 + 0.000*CL
1.140 + 0.039*CL
3.032 + 0.027*CL
1.351 + 0.000*CL
Group3*
1.168 + 0.038*CL
3.088 + 0.025*CL
1.276 + 0.000*CL
1.168 + 0.038*CL
3.185 + 0.025*CL
1.351 + 0.000*CL
TN to PAD
tF
tPHL
tPLZ
tF
tPHL
tPLZ
EN to PAD
*Group1 : CL < 50, *Group2 : 50 =
Path
Parameter
Delay [ns]
CL = 50.0pF
3.019
4.510
1.514
3.019
4.607
1.590
<
Delay Equations [ns]
Group1*
1.293 + 0.035*CL
3.026 + 0.030*CL
1.514 + 0.000*CL
1.293 + 0.035*CL
3.123 + 0.030*CL
1.589 + 0.000*CL
Group2*
1.399 + 0.032*CL
3.246 + 0.025*CL
1.514 + 0.000*CL
1.399 + 0.032*CL
3.343 + 0.025*CL
1.590 + 0.000*CL
Group3*
1.476 + 0.031*CL
3.438 + 0.023*CL
1.514 + 0.000*CL
1.476 + 0.031*CL
3.536 + 0.023*CL
1.589 + 0.000*CL
TN to PAD
tF
tPHL
tPLZ
tF
tPHL
tPLZ
EN to PAD
*Group1 : CL < 50, *Group2 : 50 =
Path
Parameter
Delay [ns]
CL = 50.0pF
3.094
4.688
1.746
3.094
4.786
1.821
<
Delay Equations [ns]
Group1*
1.495 + 0.032*CL
3.175 + 0.030*CL
1.745 + 0.000*CL
1.495 + 0.032*CL
3.272 + 0.030*CL
1.821 + 0.000*CL
Group2*
1.644 + 0.029*CL
3.431 + 0.025*CL
1.745 + 0.000*CL
1.644 + 0.029*CL
3.529 + 0.025*CL
1.821 + 0.000*CL
Group3*
1.761 + 0.027*CL
3.659 + 0.022*CL
1.746 + 0.000*CL
1.762 + 0.027*CL
3.756 + 0.022*CL
1.821 + 0.000*CL
TN to PAD
tF
tPHL
tPLZ
tF
tPHL
tPLZ
EN to PAD
*Group1 : CL < 50, *Group2 : 50 =