參數(shù)資料
型號(hào)： 74LVT244WMX
廠商： FAIRCHILD SEMICONDUCTOR CORP
元件分類： 通用總線功能
英文描述： Low Voltage Octal Buffer/Line Driver with 3-STATE Outputs
中文描述： LVT SERIES, DUAL 4-BIT DRIVER, TRUE OUTPUT, PDSO20
封裝： 0.300 INCH, MS-013, SOIC-20
文件頁(yè)數(shù)： 4/8頁(yè)
文件大?。?/td> 84K
代理商： 74LVT244WMX
www.fairchildsemi.com
4
7
DC Electrical Characteristics
Note 3:
All typical values are at V
CC
=
3.3V, T
A
=
25
°
C.
Note 4:
Applies to bushold versions only (74LVTH244).
Note 5:
An external driver must source at least the specified current to switch from LOW-to-HIGH.
Note 6:
An external driver must sink at least the specified current to switch from HIGH-to-LOW.
Note 7:
This is the increase in supply current for each input that is at the specified voltage level rather than V
CC
or GND.
Dynamic Switching Characteristics
(Note 8)
Note 8:
Characterized in SOIC package. Guaranteed parameter, but not tested.
Note 9:
Max number of outputs defined as (n). n
1 data inputs are driven 0V to 3V. Output under test held LOW.
Symbol
Parameter
V
CC
(V)
T
A
=
40
°
C to
+
85
°
C
Min
(Note 3)
Units
Conditions
Typ
Max
V
IK
V
IH
V
IL
V
OH
Input Clamp Diode Voltage
Input HIGH Voltage
2.7
1.2
V
I
I
=
18 mA
V
O
≤
0.1V or
V
O
≥
V
CC
0.1V
I
OH
=
100
μ
A
I
OH
=
8 mA
I
OH
=
32 mA
I
OL
=
100
μ
A
I
OL
=
24 mA
I
OL
=
16 mA
I
OL
=
32 mA
I
OL
=
64 mA
V
I
=
0.8V
V
I
=
2.0V
(Note 5)
2.7–3.6
2.0
V
Input LOW Voltage
Output HIGH Voltage
2.7–3.6
2.7–3.6
2.7
0.8
V
CC
0.2
2.4
V
V
3.0
2.7
2.7
2.0
V
V
V
V
OL
Output LOW Voltage
0.2
0.5
3.0
3.0
3.0
0.4
0.5
0.55
V
V
V
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
μ
A
I
I(HOLD)
(Note 4)
I
I(OD)
(Note 4)
I
I
Bushold Input Minimum Drive
3.0
75
75
500
500
Bushold Input Over-Drive
Current to Change State
3.0
(Note 6)
V
I
=
5.5V
V
I
=
0V or V
CC
V
I
=
0V
V
I
=
V
CC
0V
≤
V
I
or V
O
≤
5.5V
V
O
=
0.5V to 3.0V
V
I
=
GND or V
CC
V
O
=
0.5V
V
O
=
3.0V
V
CC
<
V
O
≤
5.5V
Outputs HIGH
Input Current
3.6
3.6
10
±
1
5
1
Control Pins
Data Pins
3.6
I
OFF
I
PU/PD
Power Off Leakage Current
0
±
100
Power up/down 3-STATE
Output Current
3-STATE Output Leakage Current
0–1.5V
±
100
μ
A
I
OZL
I
OZH
I
OZH
+
I
CCH
I
CCL
I
CCZ
I
CCZ
+
3.6
5
5
10
0.19
μ
A
μ
A
μ
A
mA
3-STATE Output Leakage Current
3-STATE Output Leakage Current
Power Supply Current
3.6
3.6
3.6
Power Supply Current
Power Supply Current
Power Supply Current
3.6
3.6
3.6
5
mA
mA
mA
Outputs LOW
Outputs Disabled
V
CC
≤
V
O
≤
5.5V,
Outputs Disabled
One Input at V
CC
0.6V
Other Inputs at V
CC
or GND
0.19
0.19
I
CC
Increase in Power Supply Current
(Note 7)
3.6
0.2
mA
Symbol
Parameter
V
CC
(V)
T
A
=
25
°
C
Typ
0.8
0.8
Units
Conditions
C
L
=
50 pF, R
L
=
500
Min
Max
V
OLP
V
OLV
Quiet Output Maximum Dynamic V
OL
Quiet Output Minimum Dynamic V
OL
3.3
V
(Note 9)
3.3
V
(Note 9)
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