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Timing Circuit
The IN555 monolithic timing circuit is a highly stable controller
capable of producing accurate time delays, or oscillation.
•
Direct Replacement for NE555 Timers
•
Timing From Microseconds Thro ugh Hours
•
Operates in Both Astable and Monostable Modes
•
High Current Output Can Source or Sink 200 mA
PIN ASSIGNMENT
TECHNICAL DATA
IN555
ORDERING INFORMATION
IN555N Plastic
IN555D SOIC
TA = -10° to 70° C for
all packages
LOGIC DIAGRAM
1
Page 2
IN555
MAXIMUM RATINGS
*
Symbol Parameter Value Unit
V
CC
Tstg Storage Temperature -60 to +85
Supply Voltage 18 V
°
C
RECOMMENDED OPERATING CONDITIONS
Symbol Parameter Min Max Unit
V
CC
T
A
ELECTRICAL CHARACTERISTICS
Symbol Parameter Test Conditions Guaranteed Limits Unit
I
CC
V
th
V
T
I
T
V
R
I
R
I
th
I
dis
Supply Voltage 4.5 16 V
Operating Temperature, All Package Types -10 +70
(TA =+25°C)
Min Max
Supply Current
Timing Error
V
=5.0 V, RL =
CC
=15 V, RL=
V
CC
∞
∞
R=1.0 kΩ to 100 k
Ω
6.0
15
4%
Initial Accuracy C = 0.1 µF
V
=5.0 V and VCC=15 V
CC
Threshold Voltage VCC=5.0 V
V
=15 V
CC
Trigger Voltage VCC=5.0 V
V
=15 V
CC
Trigger Current V02=0 V, VCC=15 V
V
=15 V, VCC=15 V
02
2.6
9
1.1
4.5
4.0
11
2.2
5.6
-2
0.5
Reset Voltage VCC=15 V 0.4 1.0 V
Reset Current V04=0 V, VCC=15 V
V
=15 V, VCC=15 V
04
Threshold Current (Note 1) V06=0 V, VCC=15 V
V
=10 V, VCC=15 V
06
-0.4
0.5
-0.5
0.25
Discharge Leakage Current (Pin7)VCC=15 V, V07=15 V 100 nA
°
C
mA
V
V
µ
mA
µ
µ
A
A
A
V
V
V
t
t
REF
OLH
OHL
Control Vol tage Level VCC=15 V
V
=5.0 V
CC
Output Voltage Low (VCC=15 V)
OL
I
=10 mA,
sink
I
=50 mA,
sink
I
=100 mA,
sink
V
Output Voltage High I
OH
=5.0 V, I
CC
=200 mA,VCC=15 V
source
I
=100 mA, VCC=15 V
source
I
=100 mA, VCC=5.0 V
source
=5.0 mA
sink
Rise Time of Output VCC=15 V 150 ns
Fall Time of Output VCC=15 V 150 ns
Note 1. This will determine the maximum value of RA + RB for 15 V operation.
The maximum tota l R=20 MΩ.
2
9.0
2.6
12
12.75
2.75
11
4.0
0.25
0.75
2.3
0.35
V
V
V
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