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74ACTQ544SC View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
Manufacturer
74ACTQ544SC Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
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 13)
Min
Typ
Max
Min
Max
tPLH
Propagation Delay
tPHL
Transparent Mode
An to Bn or Bn to An
tPLH
Propagation Delay
tPHL
LEBA, LEAB to An, Bn
Output Enable Time
3.3
1.5
8.0
11.0
1.5
12.0
5.0
1.5
5.0
7.5
1.5
8.0
ns
3.3
1.5
8.5
12.0
1.5
12.5
ns
5.0
1.5
6.0
8.0
1.5
8.5
3.3
1.5
10.0
14.0
1.5
15.0
tPZH
OEBA or OEAB to An or Bn
tPZL
CEBA or CEAB to An or Bn
Output Disable Time
5.0
1.5
7.0
9.5
1.5
10.0
ns
3.3
1.0
7.5
10.5
1.0
11.0
tPHZ
OEBA or OEAB to An or Bn
tPLZ
CEBA or CEAB to An or Bn
tOSHL
Output to Output
tOSLH
Skew (Note 14)
Note 13: Voltage Range 5.0 is 5.0V ± 0.5V
Voltage Range 3.3 is 3.3V ± 0.3V
5.0
1.0
5.0
7.0
1.0
7.5
ns
3.3
1.0
1.5
1.5
ns
5.0
0.5
1.0
1.0
Note 14: 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
An or Bn to LEBA or LEAB
tH
Hold Time, HIGH or LOW
An or Bn to LEBA or LEAB
tW
Latch Enable, B to A
Pulse Width, LOW
Note 15: Voltage Range 5.0 is 5.0V ± 0.5V
Voltage Range 3.3 is 3.0V ± 0.3V
VCC
(V)
(Note 15)
3.3
5.0
3.3
5.0
3.3
5.0
TA = +25°C
CL = 50 pF
Typ
3.0
TA = − 40°C to + 85°C
CL = 50 pF
Guaranteed Minimum
3.0
1.5
1.5
4.0
4.0
Units
ns
ns
ns
5
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