HD74AC Datasheet, PDF (10/52 Pages) Hitachi Semiconductor – HD74AC Series Common Information

FACT Descriptions and Family Characteristics
Table 1b Logic Family Comparisons Speed/Power Characteristics (All Typical Ratings)
Characteristics Symbol LS
Quiescent supply I_G
0.4
current/Gate
Power/gate
P_G
2.0
(Quiescent)
Propagation delay t_P
10
Speed power
—
20
product
Clock frequency
f _max
33
D/FF
ALS
0.2
1.2
5.0
6.0
50
HCMOS
0.0005
FACT
HD74AC
0.0005
HD74ACT
0.0025 0.0025
8.0
5.0
0.02
0.01
50
160
Unit
mA
mW
ns
pJ
MHz
Table 2 Propagation Delay
Product
LS
ALS
HCMOS FACT unit
t _PLH /t_PHL
HD74XX00 Typ
10.0
5.0
8.0
5.0
ns
Max
15.0
11.0
23.0
8.5
ns
t_PLH/t_PHL (Clock to Q) HD74XX74 Typ
25.0
12.0
14.0
8.0
ns
Max
40.0
18.0
40.0
10.5
ns
t_PLH/t_PHL (Clock to Q) HD74XX163 Typ
18.0
10.0
18.0
5.0
ns
Max
27.0
17.0
40.0
10.0
ns
Note: continuous: (LS) V_CC = 5.0 V, C_L = 15pF, 25°C;
(ALS/HC/FACT) V_CC = 5.0 V ± 10%, C_L = 50 pF, typ values at 25˚C, max values at 0 to 70˚C for ALS.
–40 to +85˚C for HC/FACT.
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