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74F14 PDF даташит

Спецификация 74F14 изготовлена ​​​​«Fairchild Semiconductor» и имеет функцию, называемую «8-Line to 3-Line Priority Encoder».

Детали детали

Номер произв 74F14
Описание 8-Line to 3-Line Priority Encoder
Производители Fairchild Semiconductor
логотип Fairchild Semiconductor логотип 

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74F14 Даташит, Описание, Даташиты
March 1988
Revised July 1999
74F14
Hex Inverter Schmitt Trigger
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
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.
Ordering Code:
Order Number Package Number
Package Description
74F14SC
M14A
14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
74F14SJ
M14D
14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
74F14PC
N14A
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
Unit Loading/Fan Out
U.L.
Input IIH/IIL
Pin Names Description
HIGH/LOW Output IOH/IOL
In
Input
1.0/1.0 20 µA/0.6 mA
On
Output
50/33.3 1 mA/20 mA
Function Table
Input
A
L
H
H = HIGH Voltage Level
L = LOW Voltage Level
Output
O
H
L
© 1999 Fairchild Semiconductor Corporation DS009461
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74F14 Даташит, Описание, Даташиты
Absolute Maximum Ratings(Note 1)
Storage Temperature
Ambient Temperature under Bias
Junction Temperature under Bias
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
3-STATE Output
Current Applied to Output
in LOW State (Max)
ESD Last Passing Voltage (Min)
65°C to +150°C
55°C to +125°C
55°C to +175°C
0.5V to +7.0V
0.5V to +7.0V
30 mA to +5.0 mA
0.5V to VCC
0.5V to +5.5V
twice the rated IOL (mA)
4000V
Recommended Operating
Conditions
Free Air Ambient Temperature
Supply Voltage
0°C to +70°C
+4.5V to +5.5V
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.
Note 2: Either voltage limit or current limit is sufficient to protect inputs.
DC Electrical Characteristics
Symbol
Parameter
VT+
VT
VT
VCD
VOH
VOL
IIH
IBVI
ICEX
VID
IOD
IIL
IOS
ICCH
ICCL
Positive-Going Threshold
Negative-Going Threshold
Hysteresis (VT+–VT)
Input Clamp Diode Voltage
Output HIGH
Voltage
Output LOW
Voltage
10% VCC
5% VCC
10% VCC
Input HIGH
Current
Input HIGH Current
Breakdown Test
Output HIGH
Leakage Current
Input Leakage
Test
Output Leakage
Circuit Current
Input LOW Current
Output Short-Circuit Current
Power Supply Current
Power Supply Current
Min Typ
1.5 1.7
0.7 0.9
0.4 0.8
2.5
2.7
4.75
60
AC Electrical Characteristics
Symbol
Parameter
tPLH Propagation Delay
tPHL
InO n
TA = +25°C
VCC = +5.0V
CL = 50 pF
Min Max
4.0 10.5
3.5 8.5
Max
2.0
1.1
1.2
0.5
5.0
7.0
50
3.75
0.6
150
25
25
Units
V
V
V
V
V
V
µA
µA
µA
V
µA
mA
mA
mA
mA
VCC
5.0V
5.0V
5.0V
Min
Min
Min
Conditions
IIN = −18 mA
IOH = −1 mA
IOH = −1 mA
IOL = 20 mA
Max VIN = 2.7V
Max VIN = 7.0V
Max
Max
0.0
Max
Max
Max
Max
VOUT = VCC
IID = 1.9 µA
All Other Pins Grounded
VIOD = 150 mV
All Other Pins Grounded
VIN = 0.5V
VOUT = 0V
VO = HIGH
VO = LOW
TA = −55°C to +125°C
VCC = +5.0V
CL = 50 pF
Min Max
4.0 13.0
3.5 10.0
TA = 0°C to +70°C
VCC = +5.0V
CL = 50 pF
Min Max
4.0 11.5
3.5 9.0
Units
ns
www.fairchildsemi.com
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74F14 Даташит, Описание, Даташиты
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 www.fairchildsemi.com










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