Philips Semiconductors Linear Products
Product specification
Timer
NE/SA/SE555/SE555C
DESCRIPTION
The 555 monolithic timing circuit is a highly stable controller capable
of producing accurate time delays, or oscillation. In the time delay
mode of operation, the time is precisely controlled by one external
resistor and capacitor. For a stable operation as an oscillator, the
free running frequency and the duty cycle are both accurately
controlled with two external resistors and one capacitor. The circuit
may be triggered and reset on falling waveforms, and the output
structure can source or sink up to 200mA.
PIN CONFIGURATIONS
D, N, FE Packages
GND 1
TRIGGER 2
OUTPUT 3
RESET 4
8
7
6
5
V
CC
DISCHARGE
THRESHOLD
CONTROL VOLTAGE
FEATURES
F Package
GND
1
NC
2
TRIGGER
3
OUTPUT
4
NC
5
RESET
6
NC
7
14
13
12
11
10
9
8
V
CC
NC
DISCHARGE
NC
THRESHOLD
NC
CONTROL VOLTAGE
•
Turn-off time less than 2µs
•
Max. operating frequency greater than 500kHz
•
Timing from microseconds to hours
•
Operates in both astable and monostable modes
•
High output current
•
Adjustable duty cycle
•
TTL compatible
•
Temperature stability of 0.005% per
°C
APPLICATIONS
TOP VIEW
•
Precision timing
•
Pulse generation
•
Sequential timing
•
Time delay generation
•
Pulse width modulation
ORDERING INFORMATION
DESCRIPTION
8-Pin Plastic Small Outline (SO) Package
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Dual In-Line Package (DIP)
8-Pin Plastic Small Outline (SO) Package
8-Pin Hermetic Ceramic Dual In-Line Package (CERDIP)
8-Pin Plastic Dual In-Line Package (DIP)
14-Pin Plastic Dual In-Line Package (DIP)
8-Pin Hermetic Cerdip
14-Pin Ceramic Dual In-Line Package (CERDIP)
14-Pin Ceramic Dual In-Line Package (CERDIP)
14-Pin Ceramic Dual In-Line Package (CERDIP)
TEMPERATURE RANGE
0 to +70°C
0 to +70°C
-40°C to +85°C
-40°C to +85°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
-55°C to +125°C
0 to +70°C
-55°C to +125°C
-55°C to +125°C
ORDER CODE
NE555D
NE555N
SA555N
SA555D
SE555CFE
SE555CN
SE555N
SE555FE
NE555F
SE555F
SE555CF
0581B
0581B
0581B
0404B
0405B
DWG #
0174C
0404B
0404B
0174C
August 31, 1994
346
853-0036 13721
Philips Semiconductors Linear Products
Product specification
Timer
NE/SA/SE555/SE555C
BLOCK DIAGRAM
V
CC
8
R
THRESH-
OLD
6
CONTROL
VOLTAGE
5
COMPARATOR
R
TRIGGER
COMPARATOR
R
2
DIS-
CHARGE
7
FLIP FLOP
RESET
4
OUTPUT
STAGE
3
OUTPUT
GND
1
EQUIVALENT SCHEMATIC
FM
CONTROL VOLTAGE
V
CC
R1
4.7K
R2
330
R3
4.7
K
R
4
1
K
Q9
Q22
Q8
Q19
R13
3.9K
R
7
5
K
R12
6.8K
Q21
Q5
Q6
Q7
Q1
THRESHOLD
Q2
Q3
Q4
R1
0
82.
K
C
CB
Q18
E
R11
4.7K
Q17
Q16
OUTPUT
Q23
B
R5
10
K
Q10
TRIGGER
Q25
RESET
DISCHARGE Q14
GND
R16
100
R6
100K
Q11 Q12
Q13
R8
5K
Q20
R14
220
Q24
R15
4.7K
Q15
R9
5K
NOTE:
Pin numbers are for 8-Pin package
August 31, 1994
347
Philips Semiconductors Linear Products
Product specification
Timer
NE/SA/SE555/SE555C
ABSOLUTE MAXIMUM RATINGS
SYMBOL
Supply voltage
V
CC
P
D
T
A
SE555
NE555, SE555C, SA555
Maximum allowable power
dissipation
1
+18
+16
600
V
V
mW
°C
°C
°C
°C
°C
PARAMETER
RATING
UNIT
Operating ambient temperature range
NE555
SA555
SE555, SE555C
0 to +70
-40 to +85
-55 to +125
-65 to +150
+300
T
STG
T
SOLD
Storage temperature range
Lead soldering temperature (10sec max)
NOTES:
1. The junction temperature must be kept below 125°C for the D package and below 150°C for the FE, N and F packages. At ambient tempera-
tures above 25°C, where this limit would be derated by the following factors:
D package 160°C/W
FE package 150°C/W
N package 100°C/W
F package 105°C/W
August 31, 1994
348
Philips Semiconductors Linear Products
Product specification
Timer
NE/SA/SE555/SE555C
DC AND AC ELECTRICAL CHARACTERISTICS
T
A
= 25°C, V
CC
= +5V to +15 unless otherwise specified.
SYMBOL
V
CC
I
CC
PARAMETER
Supply voltage
Supply current (low
state)
1
Timing error (monostable)
t
M
∆t
M
/∆T
∆t
M
/∆V
S
t
A
∆t
A
/∆T
∆t
A
/∆V
S
V
C
Initial
accuracy
2
Drift with temperature
Drift with supply voltage
Timing error (astable)
Initial accuracy
2
Drift with temperature
Drift with supply voltage
Control voltage level
V
CC
=15V
V
CC
=5V
V
CC
=15V
V
TH
I
TH
V
TRIG
I
TRIG
V
RESET
I
RESET
Threshold voltage
V
CC
=5V
Threshold
current
3
V
CC
=15V
V
CC
=5V
Trigger current
Reset voltage
4
Reset current
Reset current
V
TRIG
=0V
V
CC
=15V, V
TH
=10.5V
V
RESET
=0.4V
V
RESET
=0V
V
CC
=15V
I
SINK
=10mA
I
SINK
=50mA
V
OL
Output voltage (low)
I
SINK
=100mA
I
SINK
=200mA
V
CC
=5V
I
SINK
=8mA
I
SINK
=5mA
V
CC
=15V
I
SOURCE
=200mA
V
OH
Output voltage (high)
I
SOURCE
=100mA
V
CC
=5V
I
SOURCE
=100mA
t
OFF
t
R
t
F
Turn-off
time
5
V
RESET
=V
CC
Rise time of output
Fall time of output
Discharge leakage current
3.0
3.3
0.5
100
100
20
2.0
200
200
100
2.75
3.3
0.5
100
100
20
2.0
300
300
100
V
µs
ns
ns
nA
13.0
12.5
13.3
12.75
12.5
13.3
V
V
0.1
0.05
0.25
0.2
0.3
0.25
0.4
0.35
V
V
0.1
0.4
2.0
2.5
0.15
0.5
2.2
0.1
0.4
2.0
2.5
0.25
0.75
2.5
V
V
V
V
0.3
0.1
0.4
4.8
1.45
Trigger voltage
2.7
3.33
0.1
5.0
1.67
0.5
4.0
0.25
5.2
1.9
0.9
1.0
0.4
1.0
0.3
0.1
0.4
4.5
1.1
2.4
3.33
0.1
5.0
1.67
0.5
4.2
0.25
5.6
2.2
2.0
1.0
0.4
1.5
V
µA
V
V
µA
V
mA
mA
9.6
2.9
9.4
R
A
, R
B
=1kΩ to 100kΩ
C=0.1µF
V
CC
=15V
0.15
10.0
3.33
10.0
4
6
500
0.6
10.4
3.8
10.6
9.0
2.6
8.8
0.3
10.0
3.33
10.0
5
13
500
1
11.0
4.0
11.2
%
ppm/°C
%/V
V
V
V
V
CC
=5V, R
L
=∞
V
CC
=15V, R
L
=∞
R
A
=2kΩ to 100kΩ
C=0.1µF
0.5
30
0.05
2.0
100
0.2
1.0
50
0.1
3.0
150
0.5
%
ppm/°C
%/V
TEST CONDITIONS
SE555
Min
4.5
3
10
Typ
Max
18
5
12
NE555/SE555C
Min
4.5
3
10
Typ
Max
16
6
15
UNIT
V
mA
mA
NOTES:
1. Supply current when output high typically 1mA less.
2. Tested at V
CC
=5V and V
CC
=15V.
3. This will determine the max value of R
A
+R
B
, for 15V operation, the max total R=10MΩ, and for 5V operation, the max. total R=3.4MΩ.
4. Specified with trigger input high.
5. Time measured from a positive going input pulse from 0 to 0.8×V
CC
into the threshold to the drop from high to low of the output. Trigger is
tied to threshold.
August 31, 1994
349
Philips Semiconductors Linear Products
Product specification
Timer
NE/SA/SE555/SE555C
TYPICAL PERFORMANCE CHARACTERISTICS
Minimum Pulse Width
Required for Triggering
150
MINIMUM PULSE WIDTH (ns)
SUPPLY CURRENT – mA
125
100
75
+25
o
C
50
25
0
0
0.1
0.2
0.3
0.4 (XV
CC
)
+70
o
C
-55
o
C
0
o
C
10.0
8.0
+25
o
C
6.0
-55
o
C
4.0
+125
o
C
Supply Current
vs Supply Voltage
1.015
1.010
1.005
1.000
0.995
Delay Time
vs Temperature
+125
o
C
2.0
0
5.0
10.0
SUPPLY VOLTAGE – VOLTS
15.0
NORMALIZED DELAY TIME
0.990
0.985
-50 -25
0
+25 +50
+75 +100 +125
LOWEST VOLTAGE LEVEL OF TRIGGER PULSE
TEMPERATURE –
o
C
Low Output Voltage
vs Output Sink Current
10
V
CC
= 5V
1.0
V OUT – VOLTS
+25
o
C
+25
o
C
0.1
V OUT – VOLTS
1.0
-55
o
C
10
Low Output Voltage
vs Output Sink Current
10
V
CC
= 10V
-55
o
C
V OUT – VOLTS
+25
o
C
+25
o
C
0.1
+25
o
C
-55
o
C
+25
o
C
1.0
Low Output Voltage
vs Output Sink Current
V
CC
= 15V
-55
o
C
0.1
+25
o
C
+25
o
C
55
o
C
0.001
1.0
2.0
5.0
10
20
50
100
0.01
1.0
2.0
5.0
10
20
50
100
0.01
1.0
2.0
5.0
10
20
50
100
I
SINK
– mA
I
SINK
– mA
I
SINK
– mA
High Output Voltage Drop
vs Output Source Current
2.0
1.8
1.6
V CC V OUT – VOLTS
1.4
1.2
1.0
0.8
0.6
0.4
0.2
0
1.0
2.0
5.0
10
20
50
100
5V
≤
V
CC
≤
15V
0.985
0
+125
o
C
–55
o
C
+25
o
C
NORMALIZED DELAY TIME
1.015
Delay Time
vs Supply Voltage
300
250
Propagation Delay vs Voltage
Level of Trigger Pulse
PROPAGATION DELAY – ns
1.010
1.005
1.000
0.995
0.990
-55
o
C
200
0
o
C
150
100
50
+25
o
C
0
+25
o
C
+70
o
C
5
10
15
20
0
0.1
0.2
0.3
0.4
I
SOURCE
– mA
SUPPLY VOLTAGE – V
LOWEST VOLTAGE LEVEL
OF TRIGGER PULSE – XV
CC
August 31, 1994
350
嵌入式系统
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