Fairchild DM7486 service manual
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DM7486
Quad 2-Input Exclusive-OR Gate
General Description
This device contains four independent gates each of which
performs the logic exclusive-OR function.
Ordering Code:
Order Number Package Number Package Description
DM7486N N14A 14-Lead Plastic Dual-In-Line Package (PDIP), JEDEC MS-001, 0.300 Wide
Connection Diagram Function Table
H = HIGH Logic Level
L = LOW Logic Level
DM7486 Quad 2-Input Exclusive-OR Gate
September 1986
Revised February 2000
Y = A ⊕ B
Inputs Output
ABY
LLL
LHH
HLH
HHL
© 2000 Fairchild Semiconductor Corporation DS006531 www.fairchildsemi.com
Absolute Maximum Ratings(Note 1)
Supply Voltage 7V
DM7486
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 Ratin gs” are those v alues beyon d 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 Voltage 0.8 V
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
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.
Note 4: I
Note 5: I
Input Clamp Voltage VCC = Min, II = −12 mA −1.5 V
HIGH Level VCC = Min, IOH = Max
Output Voltage VIL = Max, VIH = Min
LOW Level VCC = Min, IOL = Max
Output Voltage VIH = Min, VIL = Max
Input Current @ Max Input Voltage VCC = Max, VI = 5.5V 1 mA
HIGH Level Input Current VCC = Max, VI = 2.4V 40 µA
LOW Level Input Current VCC = Max, VI = 0.4V −1.6 mA
Short Circuit Output Current VCC = Max (Note 3) −18 −55 mA
Supply Current with Outputs HIGH VCC = Max (Note 4) 30 50 mA
Supply Current with Outputs LOW VCC = Max (Note 3)(Note 5) 36 57 mA
is measured with all outputs open, one input of each gate at 4.5V, and the other inputs grounded.
CCH
is measured with all outputs open, and all inputs at ground.
CCL
2.4 3.4 V
Typ
(Note 2)
0.2 0.4 V
Max Units
Switching Characteristics
at VCC = 5V and TA = 25°C
Symbol Parameter Conditions
t
PLH
t
PHL
t
PLH
t
PHL
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Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Propagation Delay Time
LOW-to-HIGH Level Output
Propagation Delay Time
HIGH-to-LOW Level Output
Other Input LOW
Other Input HIGH
CL = 15 pF, RL = 400Ω
Min Max
23 ns
17 ns
30 ns
22 ns
Units
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