74AC646SC データシートの表示（PDF） - Fairchild Semiconductor
部品番号
コンポーネント説明
メーカー
74AC646SC Datasheet PDF : 9 Pages
| |||
AC Electrical Characteristics for AC
Symbol
Parameter
tPLH
Propagation Delay
Clock to Bus
tPHL
Propagation Delay
Clock to Bus
tPLH
Propagation Delay
Bus to Bus
tPHL
Propagation Delay
Bus to Bus
tPLH
Propagation Delay
SBA or SAB to An or Bn
(w/ An or Bn HIGH or LOW)
tPHL
Propagation Delay
SBA or SAB to An or Bn
(w/ An or Bn HIGH or LOW)
tPZH
Enable Time
G to An or Bn
tPZL
Enable Time
G to An or Bn
tPHZ
Disable Time
G to An or Bn
tPLZ
Disable Time
G to An or Bn
tPZH
Enable Time
DIR to An or Bn
tPZL
Enable Time
DIR to An or Bn
tPHZ
Disable Time
DIR to An or Bn
tPLZ
Disable Time
DIR to An or Bn
Note 8: Voltage Range 3.3 is 3.3V ± 0.3V
Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 8)
Min
3.3
4.0
5.0
2.5
3.3
3.0
5.0
2.0
3.3
2.5
5.0
1.5
3.3
1.5
5.0
1.5
3.3
2.0
5.0
1.5
3.3
1.5
5.0
1.5
3.3
2.5
5.0
1.5
3.3
2.5
5.0
1.5
3.3
3.0
5.0
2.0
3.3
2.0
5.0
1.5
3.3
2.0
5.0
1.5
3.3
2.5
5.0
1.5
3.3
2.5
5.0
1.5
3.3
1.5
5.0
1.5
AC Operating Requirements for AC
Symbol
Parameter
tS
Setup Time, HIGH or LOW
Bus to Clock
tH
Hold Time, HIGH or LOW
Bus to Clock
tW
Clock Pulse Width
HIGH or LOW
Note 9: Voltage Range 3.3 is 3.3V ± 0.3V
Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 9)
3.3
5.0
3.3
5.0
3.3
5.0
TA = +25°C
CL = 50 pF
Typ
10.5
7.5
9.5
6.5
7.5
5.0
7.5
5.0
8.5
6.0
Max
16.5
12.0
14.5
10.5
12.0
8.0
12.5
9.0
13.5
10.0
TA = −40°C to +85°C
CL = 50 pF
Min
Max
3.0
18.5
2.0
13.0
2.5
16.0
1.5
11.5
2.0
13.5
1.0
9.0
1.5
13.5
1.0
9.5
1.5
15.5
1.5
11.0
8.5
13.5
1.5
15.0
6.0
10.0
1.5
11.0
7.0
11.5
2.0
12.5
5.0
8.5
1.5
9.0
7.5
12.5
2.0
14.0
5.5
9.0
1.5
10.0
8.0
12.5
2.5
13.5
6.5
10.0
2.0
11.0
7.5
12.0
2.0
13.5
6.0
9.5
1.5
10.5
6.5
11.0
1.5
12.0
5.0
7.5
1.0
8.5
7.0
11.5
2.0
13.0
5.0
8.0
1.0
9.0
7.5
11.5
1.5
12.5
5.5
9.5
1.5
10.0
7.5
12.0
1.5
13.5
5.5
9.5
1.5
10.5
TA = +25°C
TA = −40°C to +85°C
CL = 50 pF
CL = 50 pF
Typ
Guaranteed Minimum
2.0
5.0
5.5
1.5
4.0
4.5
−1.5
0
0
−0.5
0.5
1.0
2.0
3.5
4.5
2.0
3.5
3.5
Units
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
Units
ns
ns
ns
www.fairchildsemi.com
6
Share Link: 