74F14PC [FAIRCHILD]
Hex Inverter Schmitt Trigger; 六反相施密特触发器
| 型号： | 74F14PC |
| 厂家： | 
FAIRCHILD SEMICONDUCTOR |
| 描述： | Hex Inverter Schmitt Trigger |
| 文件： | 总4页 (文件大小：53K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
March 1988
Revised July 1999
74F14
Hex Inverter Schmitt Trigger
totem-pole output. The Schmitt trigger uses positive feed
back to effectively speed-up slow input transition, and pro-
vide different input threshold voltages for positive and neg-
ative-going transitions. This hysteresis between the
positive-going and negative-going input thresholds (typi-
cally 800 mV) is determined internally by resistor ratios and
is essentially insensitive to temperature and supply voltage
variations.
General Description
The 74F14 contains six logic inverters which accept stan-
dard TTL input signals and provide standard TTL output
levels. They are capable of transforming slowly changing
input signals into sharply defined, jitter-free output signals.
In addition, they have a greater noise margin than conven-
tional inverters.
Each circuit contains a Schmitt trigger followed by a Dar-
lington level shifter and a phase splitter driving a TTL
Ordering Code:
Order Number Package Number
Package Description
74F14SC
74F14SJ
74F14PC
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.
Logic Symbol
Connection Diagram
IEEE/IEC
Function Table
Unit Loading/Fan Out
Input
Output
Input IIH/IIL
U.L.
A
L
O
H
L
Pin Names Description
Output IOH/IOL
20 µA/−0.6 mA
−1 mA/20 mA
HIGH/LOW
1.0/1.0
In
Input
H
On
Output
50/33.3
H = HIGH Voltage Level
L = LOW Voltage Level
© 1999 Fairchild Semiconductor Corporation
DS009461
www.fairchildsemi.com
Absolute Maximum Ratings(Note 1)
Recommended Operating
Conditions
Storage Temperature
−65°C to +150°C
Ambient Temperature under Bias
Junction Temperature under Bias
−55°C to +125°C
−55°C to +175°C
−0.5V to +7.0V
Free Air Ambient Temperature
Supply Voltage
0°C to +70°C
+4.5V to +5.5V
VCC Pin Potential to Ground Pin
Input Voltage (Note 2)
Input Current (Note 2)
Voltage Applied to Output
in HIGH State (with VCC = 0V)
Standard Output
−0.5V to +7.0V
−30 mA to +5.0 mA
−0.5V to VCC
Note 1: Absolute maximum ratings are values beyond which the device
may be damaged or have its useful life impaired. Functional operation
under these conditions is not implied.
3-STATE Output
−0.5V to +5.5V
Current Applied to Output
in LOW State (Max)
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
twice the rated IOL (mA)
4000V
ESD Last Passing Voltage (Min)
DC Electrical Characteristics
VCC
Symbol
VT+
Parameter
Min
Typ
Max
Units
Conditions
Positive-Going Threshold
Negative-Going Threshold
1.5
0.7
0.4
1.7
0.9
0.8
2.0
1.1
V
V
V
V
5.0V
5.0V
5.0V
Min
VT−
∆VT
VCD
VOH
Hysteresis (VT+–VT−)
Input Clamp Diode Voltage
Output HIGH
−1.2
I
I
I
IN = −18 mA
10% VCC
5% VCC
2.5
2.7
OH = −1 mA
OH = −1 mA
V
V
Min
Min
Max
Max
Max
Max
0.0
Voltage
VOL
Output LOW
10% VCC
0.5
5.0
7.0
50
I
OL = 20 mA
Voltage
IIH
Input HIGH
µA
µA
µA
V
V
V
V
IN = 2.7V
IN = 7.0V
OUT = VCC
Current
IBVI
ICEX
VID
IOD
Input HIGH Current
Breakdown Test
Output HIGH
Leakage Current
Input Leakage
Test
I
ID = 1.9 µA
4.75
All Other Pins Grounded
VIOD = 150 mV
Output Leakage
Circuit Current
Input LOW Current
Output Short-Circuit Current
Power Supply Current
Power Supply Current
3.75
µA
All Other Pins Grounded
IIL
−0.6
−150
25
mA
mA
mA
mA
Max
Max
Max
Max
V
V
V
V
IN = 0.5V
OUT = 0V
O = HIGH
O = LOW
IOS
−60
ICCH
ICCL
25
AC Electrical Characteristics
T
A = +25°C
CC = +5.0V
L = 50 pF
T
A = −55°C to +125°C
TA = 0°C to +70°C
VCC = +5.0V
V
VCC = +5.0V
Symbol
Parameter
Units
C
CL = 50 pF
CL = 50 pF
Min
4.0
3.5
Max
10.5
8.5
Min
Max
Min Max
tPLH
tPHL
Propagation Delay
In→O n
4.0
3.5
13.0
10.0
4.0
3.5
11.5
9.0
ns
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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
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
Package Number M14D
3
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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.
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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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4
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