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74LVT244ADB View Datasheet(PDF) - NXP Semiconductors.

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74LVT244ADB
NXP
NXP Semiconductors. NXP
74LVT244ADB Datasheet PDF : 15 Pages
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NXP Semiconductors
74LVT244A; 74LVTH244A
3.3 V octal buffer/line driver; 3-state
6. Functional description
6.1 Function table
Table 3.
Control
nOE
L
Function table [1]
H
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
VI
input voltage
VO
output voltage
output in OFF-state or
HIGH-state
0.5
+4.6
V
[1] 0.5
+7.0
V
[1] 0.5
+7.0
V
IIK
input clamping current
VI < 0 V
IOK
output clamping current
VO < 0 V
IO
output current
output in LOW-state
output in HIGH-state
-
50
mA
-
50
mA
-
128
mA
-
64
mA
Tstg
storage temperature
65
+150
°C
Tj
junction temperature
[2] -
150
°C
Ptot
total power dissipation
Tamb = 40 to +85 °C
[3]
500
mW
[1] The input and output negative voltage ratings may be exceeded if the input and output clamp current ratings are observed.
[2] The performance capability of a high-performance integrated circuit in conjunction with its thermal environment can create junction
temperatures which are detrimental to reliability.
[3] For SO20 packages: above 70 °C derate linearly with 8 mW/K.
For SSOP20 and TSSOP20 packages: above 60 °C derate linearly with 5.5 mW/K.
For DHVQFN20 packages: above 60 °C derate linearly with 4.5 mW/K.
8. Recommended operating conditions
Table 5.
Symbol
VCC
VI
IOH
Operating conditions
Parameter
supply voltage
input voltage
HIGH-level output current
Conditions
Min Typ Max Unit
2.7
-
3.6
V
0
-
5.5
V
-
-
32
mA
74LVT_LVTH244A_4
Product data sheet
Rev. 04 — 3 September 2008
© NXP B.V. 2008. All rights reserved.
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