
Samsung ASIC
3-245
STD150
FD1S/FD1SD2/FD1SD4
D Flip-Flop with Scan, 1X/2X/4X Drive
Switching Characteristics
FD1S
(Typical process, 25
°
C, 1.2V, t
R
/t
F
= 0.13ns, SL: Standard Load)
FD1SD2
FD1SD4
Path
Parameter
Delay [ns]
SL = 2
0.082
0.081
0.222
0.200
0.071
0.058
0.250
0.274
<
Delay Equations [ns]
Group1*
0.048 + 0.017*SL
0.050 + 0.015*SL
0.200 + 0.011*SL
0.175 + 0.013*SL
0.041 + 0.015*SL
0.033 + 0.013*SL
0.232 + 0.009*SL
0.257 + 0.009*SL
Group2*
0.052 + 0.016*SL
0.060 + 0.013*SL
0.210 + 0.008*SL
0.188 + 0.009*SL
0.035 + 0.016*SL
0.032 + 0.013*SL
0.237 + 0.008*SL
0.262 + 0.008*SL
Group3*
0.044 + 0.017*SL
0.059 + 0.013*SL
0.218 + 0.008*SL
0.205 + 0.008*SL
0.028 + 0.017*SL
0.027 + 0.013*SL
0.239 + 0.008*SL
0.265 + 0.007*SL
CK to Q
tR
tF
tPLH
tPHL
tR
tF
tPLH
tPHL
CK to QN
*Group1 : SL < 4, *Group2 : =
Path
Parameter
Delay [ns]
SL = 2
0.071
0.072
0.224
0.208
0.058
0.048
0.288
0.302
<
Delay Equations [ns]
Group1*
0.054 + 0.009*SL
0.055 + 0.008*SL
0.210 + 0.007*SL
0.192 + 0.008*SL
0.043 + 0.007*SL
0.034 + 0.007*SL
0.277 + 0.006*SL
0.290 + 0.006*SL
Group2*
0.057 + 0.008*SL
0.061 + 0.007*SL
0.219 + 0.005*SL
0.203 + 0.005*SL
0.041 + 0.008*SL
0.038 + 0.006*SL
0.283 + 0.004*SL
0.297 + 0.004*SL
Group3*
0.053 + 0.008*SL
0.072 + 0.006*SL
0.234 + 0.004*SL
0.227 + 0.004*SL
0.031 + 0.008*SL
0.030 + 0.007*SL
0.288 + 0.004*SL
0.305 + 0.004*SL
CK to Q
tR
tF
tPLH
tPHL
tR
tF
tPLH
tPHL
CK to QN
*Group1 : SL < 4, *Group2 : =
Path
Parameter
Delay [ns]
SL = 2
0.046
0.044
0.320
0.302
0.052
0.044
0.262
0.284
<
Delay Equations [ns]
Group1*
0.039 + 0.004*SL
0.037 + 0.003*SL
0.313 + 0.003*SL
0.296 + 0.003*SL
0.044 + 0.004*SL
0.036 + 0.004*SL
0.255 + 0.003*SL
0.278 + 0.003*SL
Group2*
0.038 + 0.004*SL
0.038 + 0.003*SL
0.317 + 0.002*SL
0.300 + 0.002*SL
0.045 + 0.004*SL
0.038 + 0.003*SL
0.260 + 0.002*SL
0.282 + 0.002*SL
Group3*
0.029 + 0.004*SL
0.035 + 0.003*SL
0.324 + 0.002*SL
0.312 + 0.002*SL
0.034 + 0.004*SL
0.037 + 0.003*SL
0.269 + 0.002*SL
0.295 + 0.002*SL
CK to Q
tR
tF
tPLH
tPHL
tR
tF
tPLH
tPHL
CK to QN
*Group1 : SL < 4, *Group2 : =