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 ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Note 2:
ESD testing conforms to MIL-STD-883, Method 3015.
Commercial Version
DC Electrical Characteristics
(Note 3)
V
EE
= −
4.2V to
−
5.7V, V
CC
=
V
CCA
=
GND, T
C
=
0°C to
+85°C
Symbol
V
OH
V
OL
V
OHC
V
OLC
V
IH
V
IL
I
IL
I
IH
Parameter
Output HIGH Voltage
Output LOW Voltage
Output HIGH Voltage
Output LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Input LOW Current
Input HIGH Current
Data
Enable
I
EE
Power Supply Current
−59
350
240
−29
mA
Inputs OPEN
µA
V
IN
=
V
IH (Max)
−1165
−1830
0.50
Min
−1025
−1830
−1035
−1610
−870
−1475
Typ
−955
−1705
Max
−870
−1620
Units
mV
mV
mV
mV
µA
V
IN
=V
IH (Max)
or V
IL (Min)
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)
Conditions
Loading with
50Ω to
−2.0V
Loading with
50Ω to
−2.0V
Note 3:
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.
DIP 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
TLH
t
THL
Parameter
Propagation Delay
Data to Output
Propagation Delay
Enable to Output
Transition Time
20% to 80%, 80% to 20%
T
C
=
0°C
Min
0.55
0.80
0.45
Max
1.30
1.80
1.30
T
C
= +25°C
Min
0.55
0.80
0.45
Max
1.30
1.80
1.30
T
C
= +85°C
Min
0.55
0.80
0.45
Max
1.40
1.90
1.30
Units
ns
ns
ns
Conditions
Figures 1, 2
(Note 4)
Figures 1, 2
Note 4:
The propagation delay specified is for single output switching. Delays may vary up to 150 ps with multiple outputs switching.
3
www.fairchildsemi.com
100313
Commercial Version
(Continued)
SOIC and 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
TLH
t
THL
t
OSHL
Parameter
Propagation Delay
Data to Output
Propagation Delay
Enable to Output
Transition Time
20% to 80%, 80% to 20%
Maximum Skew Common Edge
Output-to-Output Variation
Data to Output Path
t
OSHL
Maximum Skew Common Edge
Output-to-Output Variation
Enable to Output Path
t
OSLH
Maximum Skew Common Edge
Output-to-Output Variation
Data to Output Path
t
OSLH
Maximum Skew Common Edge
Output-to-Output Variation
Enable to Output Path
t
OST
Maximum Skew Opposite Edge
Output-to-Output Variation
Data to Output Path
t
OST
Maximum Skew Opposite Edge
Output-to-Output Variation
Enable to Output Path
t
PS
Maximum Skew
Pin (Signal) Transition Variation
Data to Output Path
t
PS
Maximum Skew
Pin (Signal) Transition Variation
Enable to Output Path
Note 5:
The propagation delay specified is for single output switching. Delays may vary up to 150 ps with multiple outputs switching.
Note 6:
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
OSHL
), or LOW-to-HIGH (t
OSLH
), or in opposite
directions both HL and LH (t
OST
). Parameters t
OST
and t
PS
guaranteed by design.
T
C
=
0°C
Min
0.55
0.80
0.45
Max
1.20
1.70
1.30
T
C
= +25°C
Min
0.55
0.80
0.45
Max
1.20
1.70
1.30
T
C
= +85°C
Min
0.55
0.80
0.45
Max
1.30
1.80
1.30
Units
Conditions
ns
ns
ns
Figures 1, 2
(Note 5)
Figures 1, 2
PLCC Only
280
280
280
ps
(Note 6)
PLCC Only
290
290
290
ps
(Note 6)
PLCC Only
330
330
330
ps
(Note 6)
PLCC Only
360
360
360
ps
(Note 6)
PLCC Only
330
330
330
ps
(Note 6)
PLCC Only
360
360
360
ps
(Note 6)
PLCC Only
200
200
200
ps
(Note 6)
PLCC Only
200
200
200
ps
(Note 6)
www.fairchildsemi.com
4
100313
Industrial Version
PLCC DC Electrical Characteristics
(Note 7)
V
EE
= −
4.2V to
−
5.7V, V
CC
=
V
CCA
=
GND, T
C
= −40°C
to
+85°C
T
C
= −40°C
T
C
=
0°C to
+85°C
Symbol
Parameter
Min
Max
Min
Max
V
OH
V
OL
V
OHC
V
OLC
V
IH
V
IL
I
IL
I
IH
Output HIGH Voltage
Output LOW Voltage
Output HIGH Voltage
Output LOW Voltage
Input HIGH Voltage
Input LOW Voltage
Input LOW Current
Input HIGH Current
Data
Enable
I
EE
Power Supply Current
−59
350
240
−29
−59
350
240
−29
mA
Inputs OPEN
µA
V
IN
=
V
IH(Max)
−1170
−1830
0.50
−1085
−1830
−1095
−1565
−870
−1480
−1165
−1830
0.50
−870
−1575
−1025
−1830
−1035
−1610
−870
−1475
−870
−1620
Units
mV
mV
mV
mV
µA
V
IN
=
V
IH(Max)
or V
IL(Min)
V
IN
=
V
IH(Min)
or V
IL(Max)
Conditions
Loading with
50Ω to
−2.0V
Loading with
50Ω to
−2.0V
Guaranteed HIGH Signal for All Inputs
Guaranteed LOW Signal for All Inputs
V
IN
=
V
IL(Min)
Note 7:
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.
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
TLH
t
THL
Parameter
Propagation Delay
Data to Output
Propagation Delay
Enable to Output
Transition Time
20% to 80%, 80% to 20%
T
C
= −40°C
Min
0.55
0.80
0.45
Max
1.20
1.70
1.30
T
C
= +25°C
Min
0.55
0.80
0.45
Max
1.20
1.70
1.30
T
C
= +85°C
Min
0.55
0.80
0.45
Max
1.30
1.80
1.30
Units
ns
ns
ns
Conditions
Figures 1, 2
(Note 8)
Figures 1, 2
Note 8:
The propagation delay specified is for single output switching. Delays may vary up to 150 ps with multiple outputs switching.
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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