74HCT244D(2016) 데이터 시트보기 (PDF) - NXP Semiconductors.
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74HCT244D Datasheet PDF : 17 Pages
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74HC244; 74HCT244
Octal buffer/line driver; 3-state
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
74HCT244
VIH
HIGH-level VCC = 4.5 V to 5.5 V
input voltage
2.0 1.6 -
2.0
-
2.0
-V
VIL
LOW-level
VCC = 4.5 V to 5.5 V
input voltage
- 1.2 0.8
-
0.8
-
0.8 V
VOH
HIGH-level VI = VIH or VIL; VCC = 4.5 V
output voltage 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
VI = VIH or VIL; VCC = 4.5 V
output voltage 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 VI = VCC or GND;
current
VCC = 5.5 V
- - 0.1 -
1.0
-
1.0 A
IOZ
OFF-state
VI = VIH or VIL; VCC = 5.5 V;
output current VO = VCC or GND
- - 0.5 -
5.0
-
10 A
ICC
supply current VI = VCC or GND;
VCC = 5.5 V; IO = 0 A
- - 8.0
-
80
-
160 A
ICC additional
per input pin;
- 70 252
-
315
-
343 A
supply current VI = VCC 2.1 V;
other inputs at VCC or GND;
VCC = 4.5 V to 5.5 V;
IO = 0 A
CI
input
capacitance
- 3.5 -
-
-
-
- pF
10. Dynamic characteristics
Table 7. Dynamic characteristics
GND = 0 V; for load circuit see Figure 8.
Symbol Parameter
Conditions
25 C
Min Typ
74HC244
tpd
propagation delay nAn to nYn;
[1]
see Figure 6
ten
enable time
VCC = 2.0 V
VCC = 4.5 V
VCC = 5.0 V; CL = 15 pF
VCC = 6.0 V
nOE to nYn; see Figure 7
VCC = 2.0 V
VCC = 4.5 V
VCC = 6.0 V
-
30
-
11
-
9
-
9
[2]
-
36
-
13
-
10
74HC_HCT244
Product data sheet
All information provided in this document is subject to legal disclaimers.
Rev. 5 — 26 February 2016
Max
110
22
-
19
150
30
26
40 C to +125 C Unit
Max
Max
(85 C) (125 C)
145
165 ns
28
33 ns
-
- ns
24
28 ns
190
225 ns
38
45 ns
33
38 ns
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