SGS Thomson Microelectronics NE555N, NE555, NE555D, SA555N, SA555 Datasheet
...
NE555
GENERALPURPOSE SINGLE BIPOLAR TIMERS
.LOW TURN OFF TIME
.MAXIMUM OPERATING FREQUENCY
GREATERTHAN500kHz
.TIMINGFROMMICROSECONDSTO HOURS
.OPERATES IN BOTH ASTABLE AND
MONOSTABLEMODES
.HIGHOUTPUT CURRENT CAN SOURCE OR
SINK200mA
.ADJUSTABLE DUTYCYCLE
.TTL COMPATIBLE
.TEMPERATURE STABILITY OF 0.005%
DESC RIP TI ON
TheNE555monolithictimingcircuitisahighlystable
controllercapableofproducingaccuratetimedelays
or oscillation.In the time delay modeof operation,
the time is precisely controlledby one externalresistorandcapacitor.Forastableoperationasanoscillator,thefree runningfrequency andthe duty cycle are both accuratelycontrolledwithtwoexternal
resistorsandone capacitor.The circuit maybe triggered and reseton fallingwaveforms, andthe output structurecan source or sinkup to 200mA. The
NE555 is available in plastic and ceramic minidip
packageandina8-leadmicropackageandinmetal
can packageversion.
PER
o
C
N
DIP8
(PlasticPackage)
ORDER CODES
Part
Number
NE555 0
SA555 –40
SE555 –55
Temperature
SA555 - SE555
D
SO8
(PlasticMicropackage)
Package
Range
o
C, 70oC ••
o
C, 105oC ••
o
C, 125oC ••
ND
PIN CONNE CTIONS (top view)
1
2
3
45
July 1998
8
7
6
1 - GND
2 - Trigger
3 - Output
4 - Reset
5 - Control voltage
6 - Threshold
7 - Discharge
8-V
CC
1/10
NE 555/SA555/SE555
BLOCK DI AGRAM
THRESHOLD
CONTROL VOLTAGE
TRIGGER
+
V
CC
5kΩ
COMP
5kΩ
COMP
5kΩ
R
FLIP-FLOP
S
INHIBIT/
RESET
Q
DISCHARGE
OUT
SCHE MATIC DIAGRAM
THRESHOLD
COMPARATOR
V
CC
Q5 Q6 Q7 Q8 Q9
THRESHOLD
TRIGGER
RESET
DISCHARGE
GND
Q1
2
4
7
Q14
1
4.7k
R1
Q2
Q15
RESET
S -8086
R2
R3
830Ω
Ω
Q3
R5
10kΩ
4.7k
Q4
Q10
100kΩ
Ω
R6
Q11 Q12
1k
R4
Ω
Q13
R7
100kΩ
S
CONTROL
VOLTAGE
5
R8
5k
Ω
R9
5kΩ
Q16 Q18
R10
5kΩ
R11
5kΩ
D2
Q17
Q19
R17
4.7k
Ω
R12
6.8kΩ
Q20
Q23
R16
100Ω
Q21
3.9kΩ
D1
R15
4.7k
OUTPUT
Ρ13
R14
220
Ω
Ω
Q22
3
Q24
TRIGGER COMPARATOR F LIP FLOP
ABSOLUTE MAXIMUM RATINGS
Symbol Parameter Value Unit
V
T
T
2/10
Supply Voltage 18 V
cc
Operating Free Air Temperature Range for NE555
oper
for SA555
for SE555
T
Junction Temperature 150
j
Storage Temperature Range –65 to 150
stg
0to70
–40 to 105
–55 to 125
o
C
o
C
o
C
NE 555/SA 555/S E 555
OPERATINGCONDITIONS
Symbol Parameter SE555 NE555 - SA555 Unit
V
CC
V
th,Vtrig,Vcl,Vreset
ELECTRICAL CHARACTERISTICS
= +25oC, VCC= +5V to +15V (unless otherwisespecified)
T
amb
Symbol Parameter
I
V
V
V
I
V
V
Notes : 1. Supply current whenoutput is high is typically1mA less.
Supply Current (RL∞) (- note 1)
CC
Low State V
High State V
Timing Error (monostable)
(R
A=
Initial Accuracy - (note 2)
Drift with Temperature
Drift with Supply Voltage
Timing Error (astable)
(R
A,RB
V
CC
Initial Accuracy - (note 2)
Drift with Temperature
Drift with Supply Voltage
Control Voltage level
CL
Threshold Voltage
V
th
Threshold Current - (note 3) 0.1 0.25 0.1 0.25 µA
I
th
Trigger Voltage
trig
Trigger Current (V
I
trig
Reset Voltage - (note 4) 0.4 0.7 1 0.4 0.7 1 V
reset
Reset Current
reset
Low Level Output Voltage
OL
V
CC
V
CC
High Level Output Voltage
OH
V
CC
V
CC
2. Tested at V
3. This willdetermine the maximum value of R
the max total R = 3.5MΩ.
Supply Voltage 4.5 to 18 4.5 to 18 V
Maximum Input Voltage V
CC
V
CC
SE555 NE555 - SA555
Min. Typ. Max. Min. Typ. Max.
V
CC
CC
CC
=+5V
= +15V
=5V
10
3
2
12
5
3
10
2
2k to 100kΩ, C = 0.1µF)
0.5
30
0.05
2
100
0.2
1
50
0.1
=1kΩto 100kΩ, C = 0.1µF,
= +15V)
= +15V, I
= +5V, I
= +15V, I
= +5V, I
= +5V and VCC= +15V.
CC
1.5
90
0.15
= +15V
V
CC
=+5V
V
CC
= +15V
V
CC
=+5V
V
CC
= +15V
V
CC
=+5V
V
CC
= 0V) 0.5 0.9 0.5 2.0 µA
trig
= +0.4V
V
reset
=0V
V
reset
= 10mA
O(sink)
= 50mA
I
O(sink)
= 100mA
I
O(sink)
= 200mA
I
O(sink)
= 8mA
O(sink)
= 5mA
I
O(sink)
O(source)
I
O(source)
O(source)
= 200mA
= 100mA
= 100mA
A+RB
9.6
2.9
9.4
2.7
4.8
1.4551.67
13
3
for +15V operation themax total is R = 20MΩ and for 5V operation
10
3.33
10
3.33
0.1
0.4
0.1
0.4
2
2.5
0.1
0.05
12.5
13.3
3.3
10.4
3.8
10.6
4
5.2
1.9
0.4
1
0.15
0.5
2.2
0.25
0.2
2.6
8.8
2.4
4.5
1.1
12.75
2.75
2.25
150
0.3
9
10
3.33
10
3.33
5
1.67
0.1
0.4
0.1
0.4
2
2.5
0.3
0.25
12.5
13.3
3.3
6
15
3
0.5
11
4
11.2
4.2
5.6
2.2
0.4
1.5
0.25
0.75
2.5
0.4
0.35
V
Unit
mA
%
ppm/°C
%/V
%
ppm/°C
%/V
V
V
V
mA
V
V
3/10
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