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74LVT2244 Datasheet(PDF) 4 Page - Fairchild Semiconductor

Part No. 74LVT2244
Description  Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs
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Maker  FAIRCHILD [Fairchild Semiconductor]
Homepage  http://www.fairchildsemi.com
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74LVT2244 Datasheet(HTML) 4 Page - Fairchild Semiconductor

   
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4
DC Electrical Characteristics (Continued)
Note 4: All typical values are at VCC
3.3V, TA
25
qC.
Note 5: Applies to bushold versions only (74LVTH2244).
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.
Note 8: This is the increase in supply current for each, input that is at the specified voltage level rather than VCC or GND.
Dynamic Switching Characteristics (Note 9)
Note 9: Characterized in SOIC package. Guaranteed parameter, but not tested.
Note 10: Max number of outputs defined as (n). n
1 data inputs are driven 0V to 3V. Output under test held LOW.
AC Electrical Characteristics
Note 11: All typical values are at VCC
3.3V, TA
25
qC.
Note 12: 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 (tOSHL) or LOW-to-HIGH (tOSLH).
Capacitance (Note 13)
Note 13: Capacitance is measured at frequency f
1 MHz, per MIL-STD-883B, Method 3012.
Symbol
Parameter
VCC
(V)
TA 40qC to 85qC
Units
Conditions
Min
Typ
Max
(Note 4)
ICCZ
Power Supply Current
3.6
0.19
mA
VCC d VO d 5.5V,
Outputs Disabled
'ICC
Increase in Power Supply Current
3.6
0.2
mA
One Input at VCC  0.6V
(Note 8)
Other Inputs at VCC or GND
Symbol
Parameter
VCC
TA 25qC
Units
Conditions
(V)
Min
Typ
Max
CL 50 pF, RL 500:
VOLP
Quiet Output Maximum Dynamic VOL
3.3
0.8
V
(Note 10)
VOLV
Quiet Output Minimum Dynamic VOL
3.3
0.8
V
Symbol
Parameter
TA 40qC to 85qC
Units
CL 50 pF, RL 500:
VCC 3.3V r 0.3V
VCC 2.7V
Min
Typ
Max
Min
Max
(Note 11)
tPLH
Propagation Delay Data to Output
1.0
4.4
1.0
5.3
ns
tPHL
1.0
4.1
1.0
4.4
tPZH
Output Enable Time
1.0
5.9
1.0
7.7
ns
tPZL
1.1
5.5
1.1
6.2
tPHZ
Output Disable Time
1.9
6.1
1.9
6.8
ns
tPLZ
1.8
4.5
1.8
4.5
tOSHL
Output to Output Skew
1.0
1.0
ns
tOSLH
(Note 12)
Symbol
Parameter
Conditions
Typical
Units
CIN
Input Capacitance
VCC 0V, VI 0V or VCC
3pF
COUT
Output Capacitance
VCC 3.0V, VO 0V or VCC
6pF


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