Fairchild Semiconductor DM74LS14MX, DM74LS14M, DM74LS14CW, DM74LS14SJ, DM74LS14N Datasheet
© 2000 Fairchild Semiconductor Corporation DS006353 www.fairchildsemi.com
August 1986
Revised March 2000
DM74LS14 Hex Inverter with Schmitt Trigger Inputs
DM74LS14
Hex Inverter with Schmitt Trigger Inputs
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 noise i mmunity and tran sforms a
slowly changing input signal to a fast changing, jitter free
output.
Ordering Code:
Devices also availab le in Tape and Reel. Specify by appending th e s uffix let t er “X” to the ordering code.
Connection Diagram Function Table
Y = A
H = HIGH Logic Level
L = LOW Logic Level
Order Number Package Number Package Description
DM74LS14M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
DM74LS14SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74LS14N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Input Output
AY
LH
HL
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DM74LS14
Absolute Maximum Ratings(Note 1)
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 co ndition s
for actual device operation.
Recommended Operating Conditions
Note 2: VCC = 5V.
Electrical Characteristics
over recommended operating free air temperature range (unless otherwise noted)
Note 3: All typicals are at VCC = 5V, TA = 25°C.
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 TA = 25°C
Supply Voltage 7V
Input Voltage 7V
Operating Free Air Temperature Range 0°C to +70°C
Storage Temperature Range −65°C to +150°C
Symbol Parameter Min Nom Max Units
V
CC
Supply Voltage 4.75 5 5.25 V
V
T+
Positive-Going Input Threshold Voltage (Note 2) 1.4 1.6 1.9 V
V
T−
Negative-Going Input Threshold Voltage (Note 2) 0.5 0.8 1 V
HYS Input Hysteresis (Note 2) 0.4 0.8 V
I
OH
HIGH Level Output Current −0.4 mA
I
OL
LOW Level Output Current 8 mA
T
A
Free Air Operating Temperature 0 70 °C
Symbol Parameter Conditions Min
Typ
Max Units
(Note 3)
V
I
Input Clamp Voltage VCC = Min, II = −18 mA −1.5 V
V
OH
HIGH Level VCC = Min, IOH = Max
2.7 3.4 V
Output Voltage VIL = Max
V
OL
LOW Level VCC = Min, IOL = Max
0.35 0.5
Output Voltage VIH = Min V
VCC = Min, IOL = 4 mA 0.25 0.4
I
T+
Input Current at VCC = 5V, VI = V
T+
−0.14 mA
Positive-Going Threshold
I
T−
Input Current at VCC = 5V, VI = V
T−
−0.18 mA
Negative-Going Threshold
I
I
Input Current @ Max Input Voltage VCC = Max, VI = 7V 0.1 mA
I
IH
HIGH Level Input Current VCC = Max, VI = 2.7V 20 µA
I
IL
LOW Level Input Current VCC = Max, VI = 0.4V −0.4 mA
I
OS
Short Circuit Output Current VCC = Max (Note 4) −20 −100 mA
I
CCH
Supply Current with Outputs HIGH VCC = Max 8.6 16 mA
I
CCL
Supply Current with Outputs LOW VCC = Max 12 21 mA
RL = 2 kΩ
Symbol Parameter CL = 15 pF CL = 50 pF Units
Min Max Min Max
t
PLH
Propagation Delay Time
522825ns
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
5 221033ns
HIGH-to-LOW Level Output
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