54LS14 [FAIRCHILD]
Hex Inverter with Schmitt Trigger Inputs; 六反相器带施密特触发器输入
| 型号： | 54LS14 |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Hex Inverter with Schmitt Trigger Inputs |
| 文件： | 总5页 (文件大小：65K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
August 1986
Revised March 2000
DM74LS14
Hex Inverter with Schmitt Trigger Inputs
General Description
This device contains six independent gates each of which
performs the logic INVERT function. Each input has hyster-
esis which increases the noise immunity and transforms a
slowly changing input signal to a fast changing, jitter free
output.
Ordering Code:
Order Number Package Number
Package Description
DM74LS14M
DM74LS14SJ
DM74LS14N
M14A
M14D
N14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also available in Tape and Reel. Specify by appending the suffix letter “X” to the ordering code.
Connection Diagram
Function Table
Y = A
Input
Output
A
L
Y
H
L
H
H = HIGH Logic Level
L = LOW Logic Level
© 2000 Fairchild Semiconductor Corporation
DS006353
www.fairchildsemi.com
Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the device cannot be guaranteed. The device should not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommended Operating Conditions” table will define the conditions
for actual device operation.
Supply Voltage
Input Voltage
7V
7V
Operating Free Air Temperature Range
Storage Temperature Range
0°C to +70°C
−65°C to +150°C
Recommended Operating Conditions
Symbol
VCC
Parameter
Min
4.75
1.4
Nom
5
Max
5.25
1.9
1
Units
V
Supply Voltage
VT+
VT−
HYS
IOH
IOL
Positive-Going Input Threshold Voltage (Note 2)
Negative-Going Input Threshold Voltage (Note 2)
Input Hysteresis (Note 2)
1.6
0.8
0.8
V
0.5
V
0.4
V
HIGH Level Output Current
−0.4
8
mA
mA
°C
LOW Level Output Current
TA
Free Air Operating Temperature
0
70
Note 2: V = 5V.
CC
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Typ
Symbol
Parameter
Conditions
= Min, I = −18 mA
Min
Max
Units
(Note 3)
V
V
Input Clamp Voltage
V
V
V
V
V
V
V
−1.5
V
V
I
CC
I
HIGH Level
= Min, I = Max
OH
OH
CC
2.7
3.4
Output Voltage
LOW Level
= Max
IL
V
= Min, I = Max
OL
OL
CC
0.35
0.5
0.4
Output Voltage
= Min
V
IH
= Min, I = 4 mA
0.25
CC
CC
OL
I
Input Current at
= 5V, V = V
−0.14
mA
mA
T+
I
T+
Positive-Going Threshold
Input Current at
I
V
= 5V, V = V
−0.18
T−
CC
I
T−
Negative-Going Threshold
Input Current @ Max Input Voltage
HIGH Level Input Current
LOW Level Input Current
Short Circuit Output Current
Supply Current with Outputs HIGH
Supply Current with Outputs LOW
I
V
V
V
V
= Max, V = 7V
0.1
20
mA
µA
I
CC
CC
CC
CC
I
I
= Max, V = 2.7V
I
IH
I
= Max, V = 0.4V
−0.4
−100
16
mA
mA
mA
mA
IL
I
I
= Max (Note 4)
= Max
−20
OS
I
V
8.6
12
CCH
CC
I
V
= Max
21
CCL
CC
Note 3: All typicals are at V = 5V, T = 25°C.
CC
A
Note 4: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Switching Characteristics
at VCC = 5V and T = 25°C
A
R
= 2 kΩ
L
Symbol
Parameter
C
= 15 pF
C
= 50 pF
Units
L
L
Min
Max
Min
Max
t
t
Propagation Delay Time
PLH
5
22
8
25
33
ns
ns
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
PHL
5
22
10
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2
Physical Dimensions inches (millimeters) unless otherwise noted
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
Package Number M14A
3
www.fairchildsemi.com
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M14D
www.fairchildsemi.com
4
Physical Dimensions inches (millimeters) unless otherwise noted (Continued)
14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Package Number N14A
Fairchild does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and
Fairchild reserves the right at any time without notice to change said circuitry and specifications.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF THE PRESIDENT OF FAIRCHILD
SEMICONDUCTOR CORPORATION. As used herein:
1. Life support devices or systems are devices or systems
which, (a) are intended for surgical implant into the
body, or (b) support or sustain life, and (c) whose failure
to perform when properly used in accordance with
instructions for use provided in the labeling, can be rea-
sonably expected to result in a significant injury to the
user.
2. A critical component in any component of a life support
device or system whose failure to perform can be rea-
sonably expected to cause the failure of the life support
device or system, or to affect its safety or effectiveness.
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5
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