MC74ACT648DW 查看數據表（PDF） - Motorola => Freescale
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MC74ACT648DW Datasheet PDF : 9 Pages
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MC74AC648 MC74ACT648
AC CHARACTERISTICS (For Figures and Waveforms — See Section 3)
74ACT
74ACT
Symbol
Parameter
VCC*
(V)
TA = +25°C
CL = 50 pF
TA = –40°C
to +85°C
CL = 50 pF
Unit
Fig.
No.
Min Typ Max Min Max
tPLH
Propagation Delay
Clock to Bus
5.0 1.5
14.0 1.5 15.5
ns
3-6
tPHL
Propagation Delay
Clock to Bus
5.0 1.5
14.0 1.5 15.5
ns
3-6
tPLH
Propagation Delay
Bus to Bus
5.0 1.5
11.5 1.0 13.0
ns
3-5
tPHL
Propagation Delay
Bus to Bus
5.0 1.5
11.5 1.0 13.0
ns
3-5
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
* Voltage Range 5.0 V is 5.0 V ±0.5 V.
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
5.0 1.5
12.0 1.5 14.0
ns
3-6
12.0 1.5 14.0
ns
3-6
11.0 1.0 12.5
ns
3-7
11.5 1.0 13.0
ns
3-8
12.5 1.0 14.0
ns
3-7
12.0 1.0 13.5
ns
3-8
13.0 1.0 14.5
ns
3-7
12.0 1.0 13.5
ns
3-8
11.5 1.0 13.0
ns
3-7
11.0 1.0 12.5
ns
3-8
FACT DATA
5-7
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