74AHC245BQ(2009) Ver la hoja de datos (PDF) - NXP Semiconductors.
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74AHC245BQ Datasheet PDF : 16 Pages
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Nexperia
74AHC245; 74AHCT245
Octal bus transceiver; 3-state
Table 2.
Symbol
B1
B0
OE
VCC
Pin description …continued
Pin
Description
17
data input/output
18
data input/output
19
output enable input (active LOW)
20
supply voltage
6. Functional description
Table 3.
Control
OE
L
L
H
Function table[1]
DIR
L
H
X
[1] H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
Z = high-impedance OFF-state.
7. Limiting values
Input/output
An
A=B
inputs
Z
Bn
inputs
B=A
Z
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
VI
IIK
IOK
IO
ICC
IGND
Tstg
Ptot
supply voltage
input voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
VI < −0.5 V
VO < −0.5 V or VO > VCC + 0.5 V
VO = −0.5 V to (VCC + 0.5 V)
Tamb = −40 °C to +125 °C
−0.5
−0.5
[1] −20
[1] −20
−25
-
−75
−65
[2] -
+7.0 V
+7.0 V
-
mA
+20 mA
+25 mA
+75 mA
-
mA
+150 °C
500 mW
[1] The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
[2] For SO20 packages: above 70 °C the value of Ptot derates linearly at 8 mW/K.
For TSSOP20 packages: above 60 °C the value of Ptot derates linearly at 5.5 mW/K.
For DHVQFN20 packages: above 60 °C the value of Ptot derates linearly at 4.5 mW/K.
74AHC_AHCT245_5
Product data sheet
Rev. 05 — 28 April 2009
© Nexperia B.V. 2017. All rights reserved
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