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74HC244PW Scheda tecnica(PDF) 5 Page - NXP Semiconductors

Il numero della parte 74HC244PW
Spiegazioni elettronici  Octal buffer/line driver; 3-state
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Produttore elettronici  NXP [NXP Semiconductors]
Homepage  http://www.nxp.com
Logo NXP - NXP Semiconductors

74HC244PW Scheda tecnica(HTML) 5 Page - NXP Semiconductors

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74HC_HCT244
All information provided in this document is subject to legal disclaimers.
© NXP B.V. 2012. All rights reserved.
Product data sheet
Rev. 4 — 24 September 2012
5 of 18
NXP Semiconductors
74HC244; 74HCT244
Octal buffer/line driver; 3-state
9.
Static characteristics
74HCT244
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 rate VCC = 4.5 V
-
1.67
139
ns/V
Tamb
ambient temperature
40
-
+125
C
Table 5.
Recommended operating conditions …continued
Symbol
Parameter
Conditions
Min
Typ
Max
Unit
Table 6.
Static characteristics
At recommended operating conditions; voltages are referenced to GND (ground = 0 V).
Symbol Parameter
Conditions
25
C
40 C to +85 C 40 C to +125 C Unit
Min
Typ
Max
Min
Max
Min
Max
74HC244
VIH
HIGH-level
input voltage
VCC = 2.0 V
1.5
1.2
-
1.5
-
1.5
-
V
VCC = 4.5 V
3.15
2.4
-
3.15
-
3.15
-
V
VCC = 6.0 V
4.2
3.2
-
4.2
-
4.2
-
V
VIL
LOW-level
input voltage
VCC = 2.0 V
-
0.8
0.5
-
0.5
-
0.5
V
VCC = 4.5 V
-
2.1
1.35
-
1.35
-
1.35
V
VCC = 6.0 V
-
2.8
1.8
-
1.8
-
1.8
V
VOH
HIGH-level
output voltage
VI =VIH or VIL
IO = 20 A; VCC = 2.0 V
1.9
2.0
-
1.9
-
1.9
-
V
IO = 20 A; VCC = 4.5 V
4.4
4.5
-
4.4
-
4.4
-
V
IO = 20 A; VCC = 6.0 V
5.9
6.0
-
5.9
-
5.9
-
V
IO = 6.0 mA; VCC = 4.5 V
3.98 4.32
-
3.84
-
3.7
-
V
IO = 7.8 mA; VCC = 6.0 V
5.48 5.81
-
5.34
-
5.2
-
V
VOL
LOW-level
output voltage
VI =VIH or VIL
IO =20 A; VCC = 2.0 V
-
0
0.1
-
0.1
-
0.1
V
IO =20 A; VCC = 4.5 V
-
0
0.1
-
0.1
-
0.1
V
IO =20 A; VCC = 6.0 V
-
0
0.1
-
0.1
-
0.1
V
IO =6.0 mA; VCC = 4.5 V
-
0.15
0.26
-
0.33
-
0.4
V
IO =7.8 mA; VCC = 6.0 V
-
0.16
0.26
-
0.33
-
0.4
V
II
input leakage
current
VI =VCC or GND;
VCC =6.0 V
--
0.1
-
1.0
-
1.0
A
IOZ
OFF-state
output current
per input pin; VI =VIH or VIL;
VO =VCC or GND;
other inputs at VCC or GND;
VCC =6.0 V; IO =0A
--
0.5
-
5.0
-
10
A
ICC
supply current VI =VCC or GND; IO =0A;
VCC =6.0 V
-
-
8.0
-
80
-
160
A
CI
input
capacitance
-3.5
-
-
-
-
-
pF


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