FAIRCHILD DM74LS32 Datasheet
June 1986
Revised March 2000
DM74LS32
Quad 2-Input OR Gate
General Description
This device contains four independent gates each of which
performs the logic OR function.
Ordering Code:
Order Number Package Number Package Description
DM74LS32M M14A 14-Lead Small Outline Integrated Circuit (SOIC), JEDEC MS-120, 0.150 Narrow
DM74LS32SJ M14D 14-Lead Small Outline Package (SOP), EIAJ TYPE II, 5.3mm Wide
DM74LS32N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Devices also availab le in Tape and Reel. Specify by appending th e s uffix let t er “X” to the ordering cod e.
Connection Diagram Function Table
Y = A + B
Inputs Output
ABY
LLL
LHH
HLH
HHH
H = HIGH Logic Level
L = LOW Logic Level
DM74LS32 Quad 2-Input OR Gate
© 2000 Fairchild Semiconductor Corporation DS006361 www.fairchildsemi.com
Absolute Maximum Ratings(Note 1)
Supply Voltage 7V
Input Voltage 7V
Operating Free Air Temperature Range 0°C to +70°C
DM74LS32
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
IH
V
IL
I
OH
I
OL
T
A
Supply Voltage 4.75 5 5. 25 V
HIGH Level Input Voltage 2 V
LOW Level In put Voltag e 0.8 V
HIGH Level Output Current −0.4 mA
LOW Level Ou tput Current 8 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
I
I
IH
I
IL
I
OS
I
CCH
I
CCL
Note 2: All typicals are at VCC = 5V, TA = 25°C.
Note 3: Not more than one output should be shorted at a time, and the duration should not exceed one second.
Input Clamp Voltage VCC = Min, II = −18 mA −1.5 V
HIGH Level VCC = Min, IOH = Max
Output Voltage VIH = Min
LOW Level VCC = Min, IOL = Max
Output Voltage VIL = Max V
IOL = 4 mA, VCC = Min 0.25 0.4
Input Current @ Max Input Voltage VCC = Max, VI = 7V 0.1 mA
HIGH Level Input Current VCC = Max, VI = 2.7V 20 µA
LOW Level Input Current VCC = Max, VI = 0.4V −0.36 mA
Short Circuit Output Current VCC = Max (Note 3) −20 −100 mA
Supply Current with Outputs HIGH VCC = Max 3.1 6.2 mA
Supply Current with Outputs LOW VCC = Max 4.9 9.8 mA
2.7 3.4 V
Typ
(Note 2)
0.35 0.5
Max Units
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol Parameter
t
PLH
t
PHL
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Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
RL = 2 kΩ
CL = 15 pF CL = 50 pF
Min Max Min Max
3 11 4 15 ns
3 11 4 15 ns
Units
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