HCC4008B Datasheet, PDF (5/13 Pages) STMicroelectronics – 4-BIT FULL ADDER WITH PARALLEL CARRY OUTPUT

HCC/HCF4008B
DYNAMIC ELECTRICAL CHARACTERISTICS (T _amb = 25 °C, C_L = 50 pF, R_L = 200 kΩ,
typical temperature coefficient for all V_DD values is 0.3 %/°C, all input rise and fall times = 20 ns)
Symbol
Parameter
t_{P L H}, t_{P HL} Propagation Delay Sum In to
Time
Sum Out
Test Conditions
V al ue
V _{D D} (V) Min. Typ. Max.
5
400 800
10
160 320
Unit
15
115 230
Carry In to
Sum Out
5
370 740
10
155 310
Sum In to
Carry Out
Carry In to
Carry Out
15
115 230
ns
5
200 400
10
90 180
15
65 130
5
100 200
10
50 100
15
40 80
t _THL , t_{T L H} Transition Time
5
100 200
10
50 100 ns
15
40 80
Typical Output Low (sink) Current.
Minimum Output Low (sink) Current Charac-
teristics.
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