Fairchild Semiconductor DM7414N Datasheet
August 1986
Revised February 2000
DM7414
Hex Inverter with Schmitt Trigger Input
General Description
This device contain s six independe nt gates eac h of which
performs the logic INVERT function. Each input has hysteresis which increases the nois e immunity and tran sforms a
slowly changing input signal to a fast changing, jitter free
output.
Ordering Code:
Order Number Package Number Package Description
DM7414N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Connection Diagram Function Table
Y = A
Input Output
AY
LH
HL
H = HIGH Logic Level
L = LOW Logic Level
DM7414 Hex Inverter with Schmitt Trigger Input
© 2000 Fairchild Semiconductor Corporation DS006503 www.fairchildsemi.com
Absolute Maximum Ratings(Note 1)
Supply Voltage 7V
DM7414
Input Voltage 5.5V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range −65°C to +150°C
Note 1: The “Absolute Maximum Ratings” are those values beyond which
the safety of the dev ice cannot be guaranteed. T he device sh ould not be
operated at these limits. The parametric values defined in the Electrical
Characteristics tables are not guaranteed at the absolute maximum ratings.
The “Recommend ed O peratin g Cond itions” t able w ill defin e the c ondit ions
for actual device operation.
Recommended Operating Conditions
Symbol Parameter Min Nom Max Units
V
CC
V
T+
Supply Voltage 4.75 5 5.25 V
Positive-Going Input 1.5 1.7 2 V
Threshold Voltage (Note 2)
V
T−
Negative-Going Input 0.6 0.9 1.1 V
Threshold Voltage (Note 2)
HYS Input Hysteresis (Note 2) 0.4 0.8 V
I
OH
I
OL
T
A
Note 2: VCC = 5V
High Level Output Current −0.8 mA
Low Level Output Current 16 mA
Free Air Operating Temperature 0 70 °C
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Symbol Parameter Conditions Min
V
I
V
OH
V
OL
I
T+
I
T−
I
I
I
IH
I
IL
I
OS
I
CCH
I
CCL
Note 3: All typicals are at VCC = 5V, TA = 25°C.
Note 4: Not more than one output should be shorted at a time.
Input Clamp Voltage VCC = Min, II = −12 mA −1.5 V
HIGH Level VCC = Min, IOH = Max
Output Voltage VI = VT−Min
LOW Level VCC = Min, IOL = Max
Output Voltage VI = VT+Max
Input Current at VCC = 5V, VI = V
Positive-Going Threshold
Input Current at VCC = 5V, VI = V
Negative-Going Threshold
Input Current @ Max VCC = Max, VI = 5.5V 1 mA
Input Voltage
HIGH Level Input Current VCC = Max, VI = 2.4V 40 µA
LOW Level Input Current VCC = Max, VI = 0.4V −1.2 mA
Short Circuit VCC = Max
Output Current (Note 4)
Supply Current with VCC = Max 22 36 mA
Outputs HIGH
Supply Current with VCC = Max 39 60 mA
Outputs LOW
T+
T−
Typ
(Note 3)
2.4 3.4 V
0.2 0.4 V
−0.43 mA
−0.56 mA
−18 −55 mA
Max Units
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol Parameter Conditions Min Max Units
t
PLH
t
PHL
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Propagation Delay Time CL = 15 pF
LOW-to-HIGH Level Output RL = 400Ω
Propagation Delay Time
HIGH-to-LOW Level Output
22 ns
22 ns
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