
1.11 VDD/VSS Rules And Guidelines
Introduction
STDM110
1-42
Samsung ASIC
Table 1-13.
Derating Equation (external 2.5V interface)
Mode
Table 1-14.
Derating Equation (external 3.3V interface)
Mode
Item
Equation
Range
Package Lead
D
L_vdd
0.0417 x Lpg + 0.9375
0.0417 x Lpg + 0.9375
0.0417 x Lpg + 0.9375
0.0417 x Lpg + 0.9375
1.0000
1.2549
1.7255
1.0000
1.2549
1.7451
– 0.8824 x voltage + 3.3235
– 0.5882 x voltage + 2.5882
– 0.8824 x voltage + 3.3235
– 0.5882 x voltage + 2.5882
0.0024 x temperature + 1.0000
0.0032 x temperature + 0.9786
0.0031 x temperature + 1.0000
0.0029 x temperature + 1.0071
0.0347 x Cload + 0.6525
0.0286 x Cload + 0.8369
0.0354 x Cload + 0.6456
0.0285 x Cload + 0.8544
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
≤
temperature
≤
25
25 < temperature
≤
125
-40
≤
temperature
≤
25
25 < temperature
≤
125
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
Equation
Range
Package Lead
D
L_vdd
0.0462 x Lpg + 1.1538
0.0231 x Lpg + 1.3846
0.0469 x Lpg + 0.7813
0.0313 x Lpg + 0.9375
1.0000
1.2537
2.2985
1.0000
1.1563
1.4063
– 1.2936 x voltage + 5.4328
– 0.4478 x voltage + 2.6119
– 0.4166 x voltage + 2.5000
– 0.4166 x voltage + 2.5000
0.0036 x temperature + 1.0000
0.0041 x temperature + 0.9878
0.0038 x temperature + 1.0000
0.0028 x temperature + 1.0227
0.0338 x Cload + 0.6618
0.0554 x Cload + 0.0146
0.0444 x Cload + 0.5556
0.0370 x Cload + 0.7778
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
≤
temperature
≤
25
25 < temperature
≤
125
-40
≤
temperature
≤
25
25 < temperature
≤
125
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