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74ACQ544 View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
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74ACQ544 Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
AC Electrical Characteristics for ACTQ
VCC
TA = + 25°C
TA = − 40°C to + 85°C
Symbol
Parameter
(V)
CL = 50 pF
CL = 50 pF
Units
(Note 16)
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
tPZH
Output Enable Time
tPZL
OEBA or OEAB to An or Bn
CEBA or CEAB to An or Bn
tPHZ
Output Disable Time
tPLZ
OEBA or OEAB to An or Bn
CEBA or CEAB to An or Bn
tOSHL
Output to Output
tOSLH
Skew (Note 17)
Note 16: Voltage Range 5.0 is 5.0V ± 0.5V
5.0
1.5
5.5
7.5
1.5
8.5
ns
5.0
1.5
6.5
8.5
1.5
9.0
ns
5.0
1.5
8.0
10.0
1.5
10.5
ns
5.0
1.0
5.5
7.5
1.0
8.0
ns
5.0
0.5
1.0
1.0
ns
Note 17: 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 ACTQ
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 18: Voltage Range 5.0 is 5.0V ± 0.5V
VCC
(V)
(Note 18)
5.0
5.0
5.0
TA = + 25°C
CL = 50 pF
Typ
TA = − 40°C to + 85°C
CL = 50 pF
Guaranteed Minimum
3.0
3.0
1.5
1.5
4.0
4.0
Units
ns
ns
ns
Capacitance
Symbol
CIN
CPD
Parameter
Input Capacitance
Power Dissipation Capacitance
Typ
Units
Conditions
4.5
80.0
pF
VCC = 5.0V
pF
VCC = 5.0V
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