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74HC_HCT257 Arkusz danych(PDF) 5 Page - NXP Semiconductors

Numer części 74HC_HCT257
Szczegółowy opis  Quad 2-input multiplexer; 3-state
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74HC_HCT257 Arkusz danych(HTML) 5 Page - NXP Semiconductors

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74HC_HCT257
All information provided in this document is subject to legal disclaimers.
© NXP Semiconductors N.V. 2015. All rights reserved.
Product data sheet
Rev. 6 — 26 January 2015
5 of 18
NXP Semiconductors
74HC257; 74HCT257
Quad 2-input multiplexer; 3-state
7.
Limiting values
[1]
For DIP16 packages: above 70
C, P
tot derates linearly with 12 mW/K.
[2]
For SO16 packages: above 70
C, P
tot derates linearly with 8 mW/K.
[3]
For SSOP16 and TSSOP16 packages: above 60
C, P
tot derates linearly with 5.5 mW/K.
8.
Recommended operating conditions
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
0.5
+7
V
IIK
input clamping current
VI < 0.5 V or
VI >VCC + 0.5 V
-
20
mA
IOK
output clamping current
VO < 0.5 V or
VO >VCC +0.5 V
-
20
mA
IO
output current
VO = 0.5 V to VCC +0.5 V
-
35
mA
ICC
supply current
-
+70
mA
IGND
ground current
-
70
mA
Tstg
storage temperature
65
+150
C
Ptot
total power dissipation
DIP16 package
[1] -
750
mW
SO16 package
[2] -
500
mW
SSOP16 package
[3] -
500
mW
TSSOP16 package
[3] -
500
mW
Table 5.
Recommended operating conditions
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
74HC257
VCC
supply voltage
2.0
5.0
6.0
V
VI
input voltage
0
-
VCC
V
VO
output voltage
0
-
VCC
V
t/V
input transition rise and
fall rates
VCC = 2.0 V
-
-
625
ns
VCC = 4.5 V
-
1.67
139
ns
VCC = 6.0 V
-
-
83
ns
Tamb
ambient temperature
40
-
+125
C
74HCT257
VCC
supply voltage
4.5
5.0
5.5
V
VI
input voltage
0
-
VCC
V
VO
output voltage
0
-
VCC
V
t/V
input transition rise and
fall rates
VCC = 4.5 V
-
1.67
139
ns
Tamb
ambient temperature
40
-
+125
C


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