
1.10  VDD/VSS Rules And Guidelines
Introduction
STD130
1-40
Samsung ASIC
Table 1-16.
Derating Equation (External 2.5V Interface)
Table 1-17.
Derating Equation (External 3.3V Interface)
Item
Mode
Equation
Range
1–8mA
12–24mA
Package Lead
D
L_vdd
0.0123
 ×
 Lpg + 1.9753
0.0247
 ×
 Lpg + 1.8518
0.0430
 ×
 Lpg + 1.5054
0.0323
 ×
 Lpg + 1.6129
1.0000
1.6419
2.0778
1.0000
1.1613
1.7742
 1.2962
 ×
 voltage + 4.4012
 0.8025
 ×
 voltage + 3.1667
 1.1828
 ×
 voltage + 4.1075
 0.7527
 ×
 voltage + 3.0323
0.000988
 ×
 temp + 1.0000
0.000455
 ×
 temp + 1.0135
0.00258
 ×
 temp + 1.0000
0.00254
 ×
 temp + 1.00097
0.0370
 ×
 cload + 0.6296
0.0154
 ×
 cload + 1.2778
0.0328
 ×
 cload + 0.6720
0.0199
 ×
 cload + 1.0591
0.1250
 ×
 Lpg + 0.8333
0.0833
 ×
 Lpg + 1.2500
0.0769
 ×
 Lpg + 0.7692
0.0385
 ×
 Lpg + 1.1538
1.0000
1.2083
1.3750
1.0000
1.0000
1.1154
 0.2083
 ×
 voltage + 1.6042
 0.4167
 ×
 voltage + 2.1250
 0.1923
 ×
 voltage + 1.5577
 0.3846
 ×
 voltage + 2.0385
0.001667
 ×
 temp + 1.0000
0.000758
 ×
 temp + 1.0227
0.00154
 ×
 temp + 1.0000
0.00209
 ×
 temp + 0.9860
0.0125
 ×
 cload + 0.8750
0.0021
 ×
 cload + 1.1875
0.0115
 ×
 cload + 0.8846
0.0019
 ×
 cload + 1.1730
3nH
 ≤
 Lpg
 ≤
 10nH
10nH
 ≤
 Lpg
 ≤
 15nH
3nH
 ≤
 Lpg
 ≤
 10nH
10nH
 ≤
 Lpg
 ≤
 15nH
best
typical
worst
best
typical
worst
2.3
 ≤
 voltage
 ≤
 2.5
2.5
 ≤
 voltage
 ≤
 2.7
2.3
 ≤
 voltage
 ≤
 2.5
2.5
 ≤
 voltage
 ≤
 2.7
 40
 ≤
 temp
 ≤
 25
25
 ≤
 temp
 ≤
 80
 40
 ≤
 temp
 ≤
 25
25
 ≤
 temp
 ≤
 80
10pF
 ≤
 cload
 ≤
 30pF
30pF
 ≤
 cload
 ≤
 50pF
10pF
 ≤
 cload
 ≤
 30pF
30pF
 ≤
 cload
 ≤
 50pF
D
L_vss
Process
D
P_vdd
D
P_vss
Voltage
D
V_vdd
D
V_vss
Temperature
D
T_vdd
D
T_vss
Cload
D
C_vdd
D
C_vss
Item
Mode
Equation
Range
1–8mA
12–24mA
Package Lead
D
L_vdd
0.0320
 ×
 Lpg + 1.6800
0.0320
 ×
 Lpg + 1.6800
0.0609
 ×
 Lpg + 1.4634
0.0244
 ×
 Lpg + 1.8293
1.0000
1.4720
1.7520
1.0000
1.1097
1.4390
 0.7200
 ×
 voltage + 3.5120
 0.4533
 ×
 voltage + 2.6320
 0.5285
 ×
 voltage + 2.8536
 0.3658
 ×
 voltage + 2.3170
0.00096
 ×
 temp + 1.0000
0.00058
 ×
 temp + 1.0095
0.00146
 ×
 temp + 1.0000
0.00155
 ×
 temp + 0.9978
0.0236
 ×
 cload + 0.7640
0.0264
 ×
 cload + 0.6800
0.0207
 ×
 cload + 0.7927
0.0177
 ×
 cload + 0.8841
0.0857
 ×
 Lpg + 1.1429
0.1143
 ×
 Lpg + 0.8571
0.0909
 ×
 Lpg + 0.9091
0.0455
 ×
 Lpg + 1.3636
1.0000
1.2000
1.3428
1.0000
1.0000
1.1304
 0.2857
 ×
 voltage + 2.0000
 0.1905
 ×
 voltage + 1.6857
 0.1515
 ×
 voltage + 1.5909
 0.3030
 ×
 voltage +2.0909
0.00114
 ×
 temp + 1.0000
0.00156
 ×
 temp + 0.9896
0.00364
 ×
 temp + 1.0000
0.00165
 ×
 temp + 1.0496
0.0257
 ×
 cload + 0.7429
0.0043
 ×
 cload + 1.3857
0.01136
 ×
 cload + 0.8864
0.00227
 ×
 cload + 1.1591
3nH
 ≤
 Lpg
 ≤
 10nH
10nH
 ≤
 Lpg
 ≤
 15nH
3nH
 ≤
 Lpg
 ≤
 10nH
10nH
 ≤
 Lpg
 ≤
 15nH
best
typical
worst
best
typical
worst
3.0
 ≤
 voltage
 ≤
 3.3
3.3
 ≤
 voltage
 ≤
 3.6
3.0
 ≤
 voltage
 ≤
 3.3
3.3
 ≤
 voltage
 ≤
 3.6
 40
 ≤
 temp
 ≤
 25
25
 ≤
 temp
 ≤
 80
 40
 ≤
 temp
 ≤
 25
25
 ≤
 temp
 ≤
 80
10pF
 ≤
 cload
 ≤
 30pF
30pF
 ≤
 cload
 ≤
 50pF
10pF
 ≤
 cload
 ≤
 30pF
30pF
 ≤
 cload
 ≤
 50pF
D
L_vss
Process
D
P_vdd
D
P_vss
Voltage
D
V_vdd
D
V_vss
Temperature
D
T_vdd
D
T_vss
Cload
D
C_vdd
D
C_vss