Retains data present before either LE or E go HIGH.
Logic Diagram
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2
100344
Absolute Maximum Ratings
(Note 2)
Storage Temperature (T
STG
)
Maximum Junction Temperature (T
J
)
V
EE
Pin Potential to Ground Pin
Input Voltage (DC)
Output Current (DC Output HIGH)
ESD (Note 3)
−
65
°
C to
+
150
°
C
+
150
°
C
−
7.0V to
+
0.5V
V
EE
to
+
0.5V
Recommended Operating
Conditions
Case Temperature (T
C
)
Commercial
Industrial
Supply Voltage (V
EE
)
0
°
C to
+
85
°
C
−
40
°
C to
+
85
°
−
5.7V to
−
4.2V
−
100 mA
≥
2000V
Note 2:
The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum rating.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Note 3:
ESD testing conforms to MIL-STD-883, Method 3015.
Commercial Version
DC Electrical Characteristics
Symbol
V
OH
V
OL
V
OHC
V
OLC
V
OLZ
V
IH
V
IL
I
IL
I
IH
I
EE
Parameter
Output HIGH Voltage
Output LOW Voltage
Output HIGH Voltage
Output LOW Voltage
Cutoff LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Input LOW Current
Input HIGH Current
Power Supply Current
−178
−185
−85
−85
mA
−1165
−1830
0.50
240
Min
−1025
−1830
−1035
−1610
−1950
−870
−1475
(Note 4)
Typ
−955
−1705
Max
−870
−1620
Units
mV
mV
mV
mV
mV
mV
mV
µA
µA
V
IN
=
V
IH
(Max)
or V
IL
(Min)
V
IN
=
V
IH
(Min)
or V
IL
(Max)
V
IN
=
V
IH
(Min)
or V
IL
(Max)
Guaranteed HIGH Signal for All Inputs
Guaranteed LOW Signal for All Inputs
V
IN
=
V
IL
(Min)
V
IN
=
V
IH
(Max)
Inputs Open
V
EE
= −4.2V
to
−4.8V
V
EE
= −4.2V
to
−5.7V
Conditions
Loading with
25Ω to
−2.0V
Loading with
25Ω to
−2.0V
OEN
=
HIGH
V
EE
= −
4.2V to
−
5.7V, V
CC
=
V
CCA
=
GND, T
C
=
0°C to
+85°C
Note 4:
The specified limits represent the “worst case” value for the parameter. Since these values normally occur at the temperature extremes, additional
noise immunity and guardbanding can be achieved by decreasing the allowable system operating ranges. Conditions for testing shown in the tables are cho-
sen to guarantee operation under “worst case” conditions.
AC Electrical Characteristics
V
EE
= −
4.2V to
−
5.7V, V
CC
=
V
CCA
=
GND
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PHZ
t
TLH
t
THL
t
S
t
H
t
PW
(H)
Parameter
Propagation Delay
D
n
to Output
Propagation Delay
LE, E to Output
Propagation Delay
OEN to Output
Transition Time
20% to 80%, 80% to 20%
Setup Time
Hold Time
Pulse Width HIGH
LE, E
D
0
–D
7
D
0
–D
7
T
C
=
0°C
Min
0.90
1.60
1.60
1.00
0.45
1.00
0.10
2.00
Max
2.10
3.10
4.20
2.70
2.00
T
C
= +25°C
Min
0.90
1.60
1.60
1.00
0.45
1.00
0.10
2.00
Max
2.10
3.10
4.20
2.70
2.00
T
C
= +85°C
Min
1.00
1.80
1.60
1.00
0.45
1.10
0.10
2.00
Max
2.30
3.40
4.20
2.70
2.00
ns
ns
ns
ns
ns
ns
ns
Figures 1, 2
(Note 5)
Figures 1, 4
(Note 5)
Figures 1, 2
(Note 5)
Figures 1, 3
Figures 1, 3
Figures 1, 3
Figures 1, 3
Units
Conditions
Note 5:
The propagation delay specified is for single output switching. Delays may vary up to 300 ps with multiple outputs switching.
3
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100344
Commercial Version
(Continued)
PLCC AC Electrical Characteristics
V
EE
= −
4.2V to
−
5.7V, V
CC
=
V
CCA
=
GND
Symbol
t
PLH
t
PHL
t
PLH
t
PHL
t
PZH
t
PHZ
t
TLH
t
THL
t
S
t
H
t
PW
(H)
t
OSHL
Parameter
Propagation Delay
D
n
to Output
Propagation Delay
LE, E to Output
Propagation Delay
OEN to Output
Transition Time
20% to 80%, 80% to 20%
Setup Time
Hold Time
Pulse Width HIGH
LE, E
Maximum Skew Common Edge
Output-to-Output Variation
Data to Output Path
t
OSLH
Maximum Skew Common Edge
Output-to-Output Variation
Data to Output Path
t
OST
Maximum Skew Opposite Edge
Output-to-Output Variation
Data to Output Path
t
PS
Maximum Skew
Pin (Signal) Transition Variation
Data to Output Path
Note 6:
The propagation delay specified is for single output switching. Delays may vary up to 300 ps with multiple outputs switching.
Note 7:
Output-to-Output Skew is defined as the absolute value of the difference between the actual propagation delay for any outputs within the same pack-
aged device. The specifications apply to any outputs switching in the same direction either HIGH-to-LOW (t
当今的计算机外部设备，都在追求高速度和高通用性。为了满足用户的需求，以Intel为首的七家公司于1994年推出了USB（Universal Serial Bus，通用串行总线）总线协议，专用于低、中速的计算机外设。目前，USB端口已成为微机主板的标准端口；而在不久的将来，所有的微机外设，包括键盘、鼠标、显示器、打印机、数字相机、扫描仪和游戏柄等等，都将通过USB与主机相连。
...[详细]
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