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參數(shù)資料
| 型號： | SNJ54HCT14WR |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | 門電路 |
| 英文描述： | HCT SERIES, HEX 1-INPUT INVERT GATE, CDFP14 |
| 封裝： | CERAMIC, DFP-14 |
| 文件頁數(shù)： | 15/21頁 |
| 文件大?。?/td> | 784K |
| 代理商： | SNJ54HCT14WR |
SN54HCT14, SN74HCT14
HEX SCHMITT-TRIGGER INVERTERS
SCLS225F JULY 1995 REVISED OCTOBER 2010
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
V
TA = 25°C
SN54HCT14
SN74HCT14
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
VT+
Positive going
4.5 V
1.2
1.5
1.9
1.2
1.9
1.2
1.9
V
Positive-going
threshold
5.5 V
1.4
1.7
2.1
1.4
2.1
1.4
2.1
V
VT
Negative going
4.5 V
0.5
0.9
1.2
0.5
1.2
0.5
1.2
V
Negative-going
threshold
5.5 V
0.6
1
1.4
0.6
1.4
0.6
1.4
V
ΔVT
Hysteresis
4.5 V
0.4
0.6
1.4
0.4
1.4
0.4
1.4
V
Hysteresis
(VT+ VT)
5.5 V
0.4
0.65
1.5
0.4
1.5
0.4
1.5
V
IOH = 20 μA
4.5 V
4.4
4.49
4.4
V
VOH
IOH = 4 mA
4.5 V
3.98
4.3
3.7
3.84
V
IOL = 20 μA
4.5 V
0.001
0.1
V
VOL
IOL = 4 mA
4.5 V
0.17
0.26
0.4
0.33
V
II
VI = VCC or GND
5.5 V
±0.1
±1
μA
ICC
VI = VCC or GND,
IO = 0
5.5 V
2
40
20
μA
ΔICC
One input at 0.5 V or 2.4 V,
Other inputs at GND or VCC
5.5 V
0.2
2.4
3
2.9
mA
Ci
VI = VCC or GND
5 V
3
10
pF
This is the increase in supply current for each input that is at one of the specified TTL voltage levels, rather than 0 V or VCC.
switching characteristics over recommended operating free-air temperature range, CL = 50 pF
(unless otherwise noted) (see Figure 1)
PARAMETER
FROM
TO
V
TA = 25°C
SN54HCT14
SN74HCT14
UNIT
PARAMETER
FROM
(INPUT)
TO
(OUTPUT)
VCC
MIN
TYP
MAX
MIN
MAX
MIN
MAX
UNIT
t
A
Y
4.5 V
20
32
48
40
ns
tpd
A
Y
5.5 V
18
30
45
38
ns
t
Y
4.5 V
7
15
22
19
ns
tt
Y
5.5 V
6
14
20
17
ns
operating characteristics, TA = 25°C
PARAMETER
TEST CONDITIONS
TYP
UNIT
Cpd
Power dissipation capacitance
No load
10
pF
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