c35 Cells: ADD21

 

ADD21 is a one-bit half adder with 1x drive strength.
Truth table Symbol Capacitance
ABCOS
0 0 0 0
0 1 0 1
1 0 0 1
1 1 1 0
ADD21-Symbol
PinCap [pF]
A 0.008
B 0.009
Area Power
0.226 mil²
146 µm²
0.91 µW/MHz
AC Characteristics
Delay[ns] = f(SL, L), Output Slope [ns] = f(SL, L) with SL = Input Slope [ns] and L = Output Load [pF]

AC Characteristics: Tj = 25°C VDD=3.3V Typical Process

RiseFall
Slope [ns]0.0520.052
Load [pF]0.0010.320.0010.320.0010.320.0010.32
Delay A => CO 0.18 1.83 0.22 1.88 0.25 1.35 0.66 1.78
Delay A => S 0.17 1.83 0.18 1.83 0.34 1.40 0.40 1.46
Delay B => CO 0.18 1.83 0.15 1.81 0.27 1.38 0.70 1.83
Delay B => S 0.15 1.81 0.12 1.78 0.34 1.41 0.32 1.39
Slew A => CO 0.12 4.23 0.16 4.25 0.12 2.40 0.16 2.40
Slew A => S 0.12 4.28 0.15 4.25 0.10 2.39 0.11 2.39
Slew B => CO 0.13 4.26 0.16 4.25 0.13 2.40 0.17 2.38
Slew B => S 0.11 4.30 0.15 4.30 0.10 2.38 0.11 2.39
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