Fairchild Semiconductor DM74S140N Datasheet
© 2000 Fairchild Semiconductor Corporation DS006467 www.fairchildsemi.com
August 1986
Revised April 2000
DM74S140 Dual 4-Input NAND 50Ω Line Driver
DM74S140
Dual 4-Input NAND 50Ω Line Driver
General Description
This device contains two independent line driver gates
each of whi ch performs the logic NAND function.
Ordering Code:
Connection Diagram Function Table
Y = ABCD
H = HIGH Logic Level
L = LOW Logic Level
X = Either LOW or HIGH Logic Level
Order Number Package Number Package Description
DM74S140 N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Inputs Output
ABCD Y
XXXL H
XXLX H
XLXX H
LXXX H
HHHH L
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DM74S140
Absolute Maximum Ratings(Note 1)
Note 1: The “Absolute Maxim um Ratin gs” are those valu es beyon d which
the safety of the dev ice cannot be guaranteed. T he device sh ould not be
operated at these limit s. The parametric values defin ed 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
Electrical Characteristics
over recommended operating free air temperature (unless otherwise noted)
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a t im e, and the duration should not exceed one second.
Switching Characteristics
at VCC = 5V and TA = 25°C
Supply Voltage 7V
Input Voltage 5.5V
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
IH
HIGH Level Input Voltage 2 V
V
IL
LOW Level Input Voltage 0.8 V
I
OH
HIGH Level Output Current −3mA
I
OL
LOW Level Output Current 60 mA
T
A
Free Air Operating Temperature 0 70 °C
Symbol Parameter Conditions Min
Typ
Max Units
(Note 2)
V
I
Input Clamp Voltage VCC = Min, II = −18 mA −1.2 V
V
OH
HIGH Level VCC = Min, VIL = Max
2.7 3.4
VOutput Voltage IOH = Max
V
IL
= 0.5V, RO = 50Ω to GND 2.0
V
OL
LOW Level VCC = Min, IOL = Max
0.5 V
Output Voltage VIH = Min
I
I
Input Current @ Max Input Voltage VCC = Max, VI = 5.5V 1 mA
I
IH
HIGH Level Input Current VCC = Max, VI = 2.7V 100 µA
I
IL
LOW Level Input Current VCC = Max, VI = 0.5V −4mA
I
OS
Short Circuit Output Current VCC = Max (Note 3) −50 −225 mA
I
CCH
Supply Current with Outputs HIGH VCC = Max 10 18 mA
I
CCL
Supply Current with Outputs LOW VCC = Max 25 44 mA
R
L
= 93Ω
Symbol Parameter
CL = 50 pF CL = 150 pF
Units
Min Max Min Max
t
PLH
Propagation Delay Time
26.53 9ns
LOW-to-HIGH Level Output
t
PHL
Propagation Delay Time
26.53 9ns
HIGH-to-LOW Level Output
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