
STD150
3-348
Samsung ASIC
FA/FAD2/FAD4
Full Adder with 1X/2X/4X Drive
Logic Symbol
Cell Data
Switching Characteristics
FA
(Typical process, 25
°
C, 1.2V, t
R
/t
F
= 0.13ns, SL: Standard Load)
Input Load (SL)
FAD2
CI
A
1.0
1.1
Gate Count
FAD2
FA
A
1.1
FAD4
A
1.1
FA
FAD4
CI
1.0
B
B
CI
1.0
B
1.1
1.1
1.1
7.67
8.33
9.67
CI
A
B
S
CO
Path
Parameter
Delay [ns]
SL = 2
0.080
0.075
0.258
0.269
0.083
0.075
0.302
0.297
0.078
0.079
0.209
0.201
0.081
0.078
0.262
0.271
0.095
0.090
0.303
0.316
0.076
0.083
0.148
0.177
<
Delay Equations [ns]
Group1*
0.050 + 0.015*SL
0.049 + 0.013*SL
0.239 + 0.010*SL
0.247 + 0.011*SL
0.053 + 0.015*SL
0.048 + 0.013*SL
0.282 + 0.010*SL
0.276 + 0.011*SL
0.046 + 0.016*SL
0.051 + 0.014*SL
0.190 + 0.010*SL
0.180 + 0.011*SL
0.050 + 0.016*SL
0.049 + 0.014*SL
0.241 + 0.010*SL
0.248 + 0.011*SL
0.066 + 0.015*SL
0.067 + 0.012*SL
0.283 + 0.010*SL
0.293 + 0.011*SL
0.044 + 0.016*SL
0.053 + 0.015*SL
0.128 + 0.010*SL
0.153 + 0.012*SL
Group2*
0.046 + 0.016*SL
0.050 + 0.013*SL
0.245 + 0.008*SL
0.257 + 0.008*SL
0.049 + 0.016*SL
0.051 + 0.013*SL
0.289 + 0.008*SL
0.286 + 0.008*SL
0.044 + 0.016*SL
0.055 + 0.013*SL
0.197 + 0.008*SL
0.190 + 0.008*SL
0.047 + 0.016*SL
0.054 + 0.013*SL
0.249 + 0.008*SL
0.259 + 0.009*SL
0.063 + 0.015*SL
0.064 + 0.012*SL
0.290 + 0.008*SL
0.304 + 0.009*SL
0.043 + 0.016*SL
0.062 + 0.013*SL
0.135 + 0.008*SL
0.165 + 0.009*SL
Group3*
0.037 + 0.017*SL
0.049 + 0.013*SL
0.249 + 0.008*SL
0.266 + 0.007*SL
0.039 + 0.017*SL
0.047 + 0.013*SL
0.294 + 0.008*SL
0.295 + 0.007*SL
0.037 + 0.017*SL
0.051 + 0.013*SL
0.201 + 0.008*SL
0.199 + 0.007*SL
0.040 + 0.017*SL
0.052 + 0.013*SL
0.255 + 0.008*SL
0.271 + 0.008*SL
0.050 + 0.016*SL
0.059 + 0.013*SL
0.296 + 0.008*SL
0.316 + 0.008*SL
0.036 + 0.017*SL
0.058 + 0.013*SL
0.139 + 0.008*SL
0.179 + 0.008*SL
A to S
tR
tF
tPLH
tPHL
tR
tF
tPLH
tPHL
tR
tF
tPLH
tPHL
tR
tF
tPLH
tPHL
tR
tF
tPLH
tPHL
tR
tF
tPLH
tPHL
B to S
CI to S
A to CO
B to CO
CI to CO
*Group1 : SL < 4, *Group2 : =
Truth Table
CI
0
1
0
1
0
1
0
1
A
0
0
0
0
1
1
1
1
B
0
0
1
1
0
0
1
1
S
0
1
1
0
1
0
0
1
CO
0
0
0
1
0
1
1
1