參數(shù)資料
型號： 74LCXH16245GX
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： BUS TRANSCEIVER|DUAL|8-BIT|LCX-CMOS|BGA|54PIN|PLASTIC
中文描述： LVC/LCX/Z SERIES, DUAL 8-BIT TRANSCEIVER, TRUE OUTPUT, PBGA54
封裝： 5.50 MM, PLASTIC, MO-205, FBGA-54
文件頁數(shù)： 4/8頁
文件大?。?/td> 93K
代理商： 74LCXH16245GX
www.fairchildsemi.com
4
7
DC Electrical Characteristics
(Continued)
Note 6:
An external driver must source at least the specified current to switch from LOW-to-HIGH.
Note 7:
An external driver must sink at least the specified current to switch from HIGH-to-LOW.
AC Electrical Characteristics
Note 8:
Skew is defined as the absolute value of the difference between the actual propagation delay for any two separate outputs of the same 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.
Dynamic Switching Characteristics
Capacitance
Symbol
Parameter
Conditions
V
CC
(V)
T
A
=
40
°
C to
+
85
°
C
Min
45
45
75
75
300
300
450
450
Units
Max
I
I(HOLD)
Bushold Input Minimum
Drive Hold Current
V
IN
=
0.7V
V
IN
=
1.7V
V
IN
=
0.8V
V
IN
=
2.0V
(Note 6)
2.3
μ
A
3.0
I
I(OD)
Bushold Input Over-Drive
2.7
μ
A
Current to Change State
(Note 7)
(Note 6)
(Note 7)
V
O
=
V
CC
or GND
V
I
or V
O
=
5.5V
V
I
=
V
CC
or GND
V
IH
=
V
CC
0.6V
3.6
I
OZ
I
OFF
I
CC
I
CC
3-STATE I/O Leakage
Power-Off Leakage Current
Quiescent Supply Current
2.3
3.6
0
2.3
–
3.6
±
5.0
10
20
μ
A
μ
A
μ
A
μ
A
Increase in I
CC
per Input
2.3
–
3.6
500
Symbol
Parameter
T
A
=
40
°
C to
+
85
°
C, R
L
=
500
V
CC
=
2.7V
C
L
=
50 pF
Min
1.0
1.0
Units
V
CC
=
3.3V
±
0.3V
C
L
=
50 pF
Min
1.0
1.0
V
CC
=
2.5V
±
0.2V
C
L
=
30 pF
Min
1.0
1.0
Max
4.5
4.5
Max
5.2
5.2
Max
5.4
5.4
t
PHL
t
PLH
t
PZL
t
PZH
t
PLZ
t
PHZ
t
OSHL
t
OSLH
Propagation Delay
A
n
to B
n
or B
n
to A
n
Output Enable Time
ns
1.0
1.0
1.0
6.5
6.5
6.4
1.0
1.0
1.0
7.2
7.2
6.9
1.0
1.0
1.0
8.5
8.5
7.7
ns
Output Disable Time
ns
1.0
6.4
1.0
1.0
6.9
1.0
7.7
Output to Output Skew (Note 8)
ns
1.0
Symbol
Parameter
Conditions
V
CC
(V)
T
A
=
25
°
C
Typical
0.8
0.6
0.8
0.6
Units
V
OLP
Quiet Output Dynamic Peak V
OL
C
L
=
50 pF, V
IH
=
3.3V, V
IL
=
0V
C
L
=
30 pF, V
IH
=
2.5V, V
IL
=
0V
C
L
=
50 pF, V
IH
=
3.3V, V
IL
=
0V
C
L
=
30 pF, V
IH
=
2.5V, V
IL
=
0V
3.3
2.5
3.3
V
V
OLV
Quiet Output Dynamic Valley V
OL
V
2.5
Symbol
C
IN
C
I/O
C
PD
Parameter
Conditions
Typical
7
Units
pF
Input Capacitance
V
CC
=
Open, V
I
=
0V or V
CC
V
CC
=
3.3V, V
I
=
0V or V
CC
V
CC
=
3.3V, V
I
=
0V or V
CC
, f
=
10 MHz
Input/Output Capacitance
Power Dissipation Capacitance
8
pF
pF
20
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