74HC240 Datasheet, PDF (4/18 Pages) NXP Semiconductors – Octal buffer/line driver; 3-state; inverting

NXP Semiconductors
74HC240; 74HCT240
Octal buffer/line driver; 3-state; inverting
Table 2.
Symbol
2A0
1Y0
2OE
V_CC
Pin description …continued
Pin
Description
17
data input
18
bus output
19
output enable input (active LOW)
20
supply voltage
6. Functional description
Table 3.
Input
nOE
L
L
H
Function table^[1]
[1] H = HIGH voltage level;
L = LOW voltage level;
X = don’t care;
Z = high-impedance OFF-state.
nAn
L
H
X
7. Limiting values
Output
nYn
H
L
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
V_CC
I_IK
I_OK
I_O
I_CC
I_GND
T_stg
P_tot
supply voltage
input clamping current
output clamping current
output current
supply current
ground current
storage temperature
total power dissipation
DIP20 package
V_I < −0.5 V or V_I > V_CC + 0.5 V
V_O < −0.5 V or V_O > V_CC + 0.5 V
−0.5 V < V_O < V_CC + 0.5 V
−0.5
-
-
-
-
−70
−65
[1]
-
+7
V
±20
mA
±20
mA
±35
mA
70
mA
-
mA
+150 °C
750 mW
SO20, SSOP20, TSSOP20
and DHVQFN20 packages
-
500 mW
[1] For DIP20 packages: above 70 °C, P_tot derates linearly with 12 mW/K.
For SO20 packages: above 70 °C, P_tot derates linearly with 8 mW/K.
For SSOP20 and TSSOP20 packages: above 60 °C, P_tot derates linearly with 5.5 mW/K.
For DHVQFN20 packages: above 60 °C, P_tot derates linearly with 4.5 mW/K.
74HC_HCT240_3
Product data sheet
Rev. 03 — 2 August 2007
© NXP B.V. 2007. All rights reserved.
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