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SN74HCT14-Q1 数据表(PDF) 2 Page - Texas Instruments

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部件名 SN74HCT14-Q1
功能描述  HEX SCHMITT-TRIGGER INVERTER
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制造商  TI1 [Texas Instruments]
网页  http://www.ti.com
标志 TI1 - Texas Instruments

SN74HCT14-Q1 数据表(HTML) 2 Page - Texas Instruments

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SN74HCT14Q1
HEX SCHMITT TRIGGER INVERTER
SCLS588A − JULY 2004 − REVISED APRIL 2008
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
absolute maximum ratings over operating free-air temperature range (unless otherwise noted)
Supply voltage range, VCC
−0.5 V to 7 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input voltage range, VI (see Note 1)
−0.5 V to VCC + 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output voltage range, VO (see Note 1)
−0.5 V to VCC + 0.5 V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Input clamp current, IIK (VI < 0 or VI > VCC)
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Output clamp current, IOK (VO < 0 or VO > VCC)
±20 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous output current, IO (VO = 0 to VCC)
±25 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Continuous current through VCC or GND
±50 mA
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Package thermal impedance,
θJA (see Note 2): D package
86
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
PW package
113
°C/W
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Storage temperature range, Tstg
−65
°C to 150°C
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
† Stresses beyond those listed under “absolute maximum ratings” may cause permanent damage to the device. These are stress ratings only, and
functional operation of the device at these or any other conditions beyond those indicated under “recommended operating conditions” is not
implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability.
NOTES:
1. The input and output voltage ratings may be exceeded if the input and output current ratings are observed.
2. The package thermal impedance is calculated in accordance with JESD 51-7.
recommended operating conditions (see Note 3)
MIN
MAX
UNIT
VCC
Supply voltage
4.5
5.5
V
VI
Input voltage
0
VCC
V
VO
Output voltage
0
VCC
V
TA
Operating free-air temperature
−40
125
°C
NOTE 3: All unused inputs of the device must be held at VCC or GND to ensure proper device operation. Refer to the TI application report,
Implications of Slow or Floating CMOS Inputs, literature number SCBA004.
electrical characteristics over recommended operating free-air temperature range (unless
otherwise noted)
PARAMETER
TEST CONDITIONS
VCC
TA = 25°C
MIN
MAX
UNIT
PARAMETER
TEST CONDITIONS
VCC
MIN
TYP
MAX
MIN
MAX
UNIT
VT+
Positive-going
4.5 V
1.2
1.5
1.9
1.2
1.9
V
T+
Positive-going
threshold
5.5 V
1.4
1.7
2.1
1.4
2.1
V
VT−
Negative-going
4.5 V
0.5
0.9
1.2
0.5
1.2
V
T−
Negative-going
threshold
5.5 V
0.6
1
1.4
0.6
1.4
V
∆VT
Hysteresis
4.5 V
0.4
0.6
1.4
0.4
1.4
V
T
Hysteresis
(VT+ − VT−)
5.5 V
0.4
0.65
1.5
0.4
1.5
V
VOH
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
V
VOL
IOL = 20 µA
4.5 V
0.001
0.1
0.1
V
VOL
IOL = 4 mA
4.5 V
0.17
0.26
0.4
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
µA
∆ICC‡
One input at 0.5 V or 2.4 V, Other inputs at GND or VCC
5.5 V
0.2
2.4
3
mA
Ci
VI = VCC or GND
5 V
3
10
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.


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