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74HCT244N データシート(PDF) 6 Page - NXP Semiconductors

部品番号 74HCT244N
部品情報  Octal buffer/line driver; 3-state
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メーカー  PHILIPS [NXP Semiconductors]
ホームページ  http://www.nxp.com
Logo PHILIPS - NXP Semiconductors

74HCT244N データシート(HTML) 6 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
6 of 18
NXP Semiconductors
74HC244; 74HCT244
Octal buffer/line driver; 3-state
10. Dynamic characteristics
74HCT244
VIH
HIGH-level
input voltage
VCC = 4.5 V to 5.5 V
2.0
1.6
-
2.0
-
2.0
-
V
VIL
LOW-level
input voltage
VCC = 4.5 V to 5.5 V
-
1.2
0.8
-
0.8
-
0.8
V
VOH
HIGH-level
output voltage
VI =VIH or VIL; VCC =4.5 V
IO = 20 A
4.4
4.5
-
4.4
-
4.4
-
V
IO = 6 mA
3.98 4.32
-
3.84
-
3.7
-
V
VOL
LOW-level
output voltage
VI =VIH or VIL; VCC =4.5 V
IO =20 A
-
0
0.1
-
0.1
-
0.1
V
IO = 6.0 mA
-
0.16
0.26
-
0.33
-
0.4
V
II
input leakage
current
VI =VCC or GND;
VCC =5.5 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 =5.5 V; IO =0A
--
0.5
-
5.0
-
10
A
ICC
supply current VI =VCC or GND;
VCC =5.5 V; IO =0A
-
-
8.0
-
80
-
160
A
I
CC
additional
supply current
per input pin;
VI =VCC  2.1 V;
other inputs at VCC or GND;
VCC = 4.5 V to 5.5 V;
IO =0A
-
70
252
-
315
-
343
A
CI
input
capacitance
-3.5
-
-
-
-
-
pF
Table 6.
Static characteristics …continued
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
Table 7.
Dynamic characteristics
GND = 0 V; for load circuit see Figure 8.
Symbol Parameter
Conditions
25
C
40 C to +125 C Unit
Min
Typ
Max
Max
(85
C)
Max
(125
C)
74HC244
tpd
propagation delay
nAn to nYn;
see Figure 6
[1]
VCC = 2.0 V
-
30
110
145
165
ns
VCC = 4.5 V
-
11
22
28
33
ns
VCC = 5.0 V; CL =15pF
-
9
-
-
-
ns
VCC = 6.0 V
-
9
19
24
28
ns


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