參數(shù)資料
型號(hào): 74ACQ544
廠商: Fairchild Semiconductor Corporation
英文描述: Quiet Series⑩ Octal Registered Transceiver with 3-STATE Outputs
中文描述: 安靜系列⑩八路注冊(cè)收發(fā)器三態(tài)輸出
文件頁(yè)數(shù): 5/9頁(yè)
文件大?。?/td> 86K
代理商: 74ACQ544
5
www.fairchildsemi.com
7
AC Electrical Characteristics for ACQ
Note 13:
Voltage Range 5.0 is 5.0V
±
0.5V
Voltage Range 3.3 is 3.3V
±
0.3V
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 (t
OSHL
) or LOW-to-HIGH (t
OSLH
). Parameter guaranteed by
design. Not tested.
AC Operating Requirements for ACQ
Note 15:
Voltage Range 5.0 is 5.0V
±
0.5V
Voltage Range 3.3 is 3.0V
±
0.3V
V
CC
T
A
=
+
25
°
C
C
L
=
50 pF
Typ
8.0
5.0
T
A
=
40
°
C to
+
85
°
C
C
L
=
50 pF
Min
1.5
1.5
Symbol
Parameter
(V)
Units
(Note 13)
3.3
5.0
Min
1.5
1.5
Max
11.0
7.5
Max
12.0
8.0
t
PLH
t
PHL
Propagation Delay
Transparent Mode
ns
A
n
to B
n
or B
n
to A
n
Propagation Delay
LEBA, LEAB to A
n
, B
n
Output Enable Time
OEBA or OEAB to A
n
or B
n
CEBA or CEAB to A
n
or B
n
Output Disable Time
OEBA or OEAB to A
n
or B
n
CEBA or CEAB to A
n
or B
n
Output to Output
Skew (Note 14)
t
PLH
t
PHL
3.3
5.0
1.5
1.5
8.5
6.0
12.0
8.0
1.5
1.5
12.5
8.5
ns
3.3
5.0
1.5
1.5
10.0
7.0
14.0
9.5
1.5
1.5
15.0
10.0
t
PZH
t
PZL
ns
3.3
5.0
1.0
1.0
7.5
5.0
10.5
7.0
1.0
1.0
11.0
7.5
t
PHZ
t
PLZ
t
OSHL
t
OSLH
ns
3.3
5.0
1.0
0.5
1.5
1.0
1.5
1.0
ns
V
CC
T
A
=
+
25
°
C
C
L
=
50 pF
Typ
T
A
=
40
°
C to
+
85
°
C
C
L
=
50 pF
Guaranteed Minimum
Symbol
Parameter
(V)
Units
(Note 15)
3.3
5.0
t
S
Setup Time, HIGH or LOW
A
n
or B
n
to LEBA or LEAB
Hold Time, HIGH or LOW
A
n
or B
n
to LEBA or LEAB
Latch Enable, B to A
3.0
3.0
ns
t
H
3.3
5.0
3.3
1.5
1.5
ns
t
W
4.0
4.0
ns
Pulse Width, LOW
5.0
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