74ACQ646CW 查看數據表（PDF） - Fairchild Semiconductor
零件编号
产品描述 (功能)
生产厂家
74ACQ646CW Datasheet PDF : 10 Pages
| |||
AC Electrical Characteristics for ACQ
VCC
TA = +25°C
TA = −40°C to +85°C
Symbol
Parameter
(V)
CL = 50 pF
CL = 50 pF
Units
(Note 14)
Min
Typ
Max
Min
Max
tPLH
Propagation Delay
Bus to Bus
3.3
3.5
9.0
12.0
3.5
13.0
ns
5.0
2.5
6.5
9.0
2.5
9.5
tPHL
Propagation Delay
Bus to Bus
3.3
3.5
9.0
12.0
3.5
13.0
ns
5.0
2.5
6.5
9.0
2.5
9.5
tPLH
Propagation Delay
Clock to Bus
3.3
3.5
10.0
13.0
3.5
14.0
ns
5.0
2.5
7.0
9.5
2.5
10.5
tPHL
Propagation Delay
Clock to Bus
3.3
3.5
10.0
13.0
3.5
14.0
ns
5.0
2.5
7.0
9.5
2.5
10.5
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
tOS
Output to Output Skew (Note 15)
3.3
3.5
9.5
12.5
3.5
13.5
5.0
2.5
6.5
9.0
2.5
10.0
ns
3.3
3.5
9.5
12.5
3.5
13.5
5.0
2.5
6.5
9.0
2.5
10.0
ns
3.3
3.5
10.5
14.5
3.5
15.5
ns
5.0
2.5
8.0
10.5
2.5
11.5
3.3
3.5
10.5
14.5
3.5
15.5
ns
5.0
2.5
8.0
10.5
2.5
11.5
3.3
2.5
8.0
11.0
2.5
12.0
ns
5.0
1.5
5.0
7.5
1.5
8.0
3.3
2.5
8.0
11.0
2.5
12.0
ns
5.0
1.5
5.0
7.5
1.5
8.0
3.3
4.5
11.0
15.5
4.5
17.0
ns
5.0
3.0
8.5
11.0
3.0
11.5
3.3
4.5
11.0
15.5
4.5
17.0
ns
5.0
3.0
8.5
11.0
3.0
11.5
3.3
1.5
8.0
11.0
1.5
12.0
ns
5.0
1.0
5.0
7.5
1.0
8.0
3.3
1.5
8.0
11.0
1.5
12.0
ns
5.0
1.0
5.0
7.5
1.0
8.0
3.3
1.0
1.5
1.5
ns
5.0
0.5
1.0
1.0
Note 14: Voltage Range 3.3 is 3.3V ± 0.3V.
Voltage Range 5.0 is 5.0V ± 0.5V
Note 15: Skew is defined as the absolute value of the difference between the actual propagation delay for any two outputs within the same packaged device.
The specification applies to any outputs switching in the same direction, either HIGH-to-LOW (tOSHL) or LOW-to-HIGH (tOSLH). Parameter guaranteed by
design. Not tested.
AC Operating Requirements for ACQ
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 16: Voltage Range 5.0 is 5.0V ± 0.5V
Voltage Range 3.3 is 3.3V ± 0.3V
VCC
(Note 16)
3.3
5.0
3.3
5.0
3.3
5.0
TA = +25°C
TA = −40°C to +85°C
Typ
Guaranteed Minimum
3.0
3.0
3.0
3.0
1.5
1.5
1.5
1.5
4.0
4.0
4.0
4.0
Units
ns
ns
ns
www.fairchildsemi.com
6
Share Link: 