74LVCH244ADB(2009) Ver la hoja de datos (PDF) - NXP Semiconductors.
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74LVCH244ADB Datasheet PDF : 18 Pages
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NXP Semiconductors
74LVC244A; 74LVCH244A
Octal buffer/line driver; 3-state
6. Functional description
Table 3.
Control
nOE
L
L
H
Function table [1]
Input
nAn
L
H
X
Output
nYn
L
H
Z
[1] H = HIGH voltage level; L = LOW voltage level; X = don’t care; Z = high-impedance OFF-state.
7. Limiting values
Table 4. Limiting values
In accordance with the Absolute Maximum Rating System (IEC 60134). Voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
Min
Max
Unit
VCC
supply voltage
IIK
input clamping current
VI < 0 V
VI
input voltage
IOK
output clamping current
VO > VCC or VO < 0 V
VO
output voltage
output HIGH or LOW
output 3-state
−0.5
−50
[1] −0.5
-
[2] −0.5
[2] −0.5
+6.5
V
-
mA
+6.5
V
±50
mA
VCC + 0.5 V
+6.5
V
IO
ICC
IGND
Tstg
Ptot
output current
supply current
ground current
storage temperature
total power dissipation
VO = 0 V to VCC
Tamb = −40 °C to +125 °C
-
±50
mA
-
100
mA
−100
-
mA
−65
+150
°C
[3] -
500
mW
[1] The minimum input voltage ratings may be exceeded if the input current ratings are observed.
[2] The output voltage ratings may be exceeded if the output current ratings are observed.
[3] For SO20 packages: above 70 °C derate linearly with 8 mW/K.
For (T)SSOP20 packages: above 60 °C derate linearly with 5.5 mW/K.
For DHVQFN20 and DHXQFN20U packages: above 60 °C derate linearly with 4.5 mW/K.
74LVC_LVCH244A_6
Product data sheet
Rev. 06 — 13 August 2009
© NXP B.V. 2009. All rights reserved.
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