參數(shù)資料
型號(hào): HD74AC
廠商: Hitachi,Ltd.
英文描述: HD74AC Series Common Information
中文描述: HD74AC系列通用信息
文件頁(yè)數(shù): 10/52頁(yè)
文件大小: 220K
代理商: HD74AC
FACT Descriptions and Family Characteristics
9
Table 1b Logic Family Comparisons Speed/Power Characteristics (All Typical Ratings)
FACT
Characteristics
Symbol
LS
ALS
HCMOS
HD74AC
HD74ACT
Unit
Quiescent supply
current/Gate
I
G
0.4
0.2
0.0005
0.0005
mA
Power/gate
(Quiescent)
P
G
2.0
1.2
0.0025
0.0025
mW
Propagation delay
t
P
10
5.0
8.0
5.0
ns
Speed power
product
20
6.0
0.02
0.01
pJ
Clock frequency
D/FF
f
max
33
50
50
160
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 25C, max values at 0 to 70C for ALS.
–40 to +85C for HC/FACT.
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