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Datasheet> All Categories > Analog mixed-signal IC> The signal circuit> NE555N
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NE555N

Description
1 Func, PDIP8, DIP-8
CategoryAnalog mixed-signal IC    The signal circuit   
File Size832KB，15 Pages
ManufacturerRochester Electronics
Websitehttps://www.rocelec.com/
Related ProductsFound16parts with similar functions to NE555N
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NE555N Overview

1 Func, PDIP8, DIP-8

NE555N Parametric

Parameter NameAttribute value
Is it lead-free?Lead free
Is it Rohs certified?incompatible
MakerRochester Electronics
Parts packaging codeDIP
package instructionDIP,
Contacts8
Reach Compliance Codeunknown
ECCN codeEAR99
Other featuresIT CAN ALSO OPERATE AT 15V NOMINAL SUPPLY
Analog Integrated Circuits - Other TypesPULSE; RECTANGULAR
JESD-30 codeR-PDIP-T8
JESD-609 codee0
length9.2 mm
Number of functions1
Number of terminals8
Maximum operating temperature70 °C
Minimum operating temperature
Package body materialPLASTIC/EPOXY
encapsulated codeDIP
Package shapeRECTANGULAR
Package formIN-LINE
Peak Reflow Temperature (Celsius)NOT SPECIFIED
Certification statusNot Qualified
Maximum seat height5.08 mm
Maximum supply voltage (Vsup)16 V
Minimum supply voltage (Vsup)4.5 V
Nominal supply voltage (Vsup)5 V
surface mountNO
Temperature levelCOMMERCIAL
Terminal surfaceTin/Lead (Sn/Pb)
Terminal formTHROUGH-HOLE
Terminal pitch2.54 mm
Terminal locationDUAL
Maximum time at peak reflow temperatureNOT SPECIFIED
width7.62 mm

NE555N Preview

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www.fairchildsemi.com
LM555/NE555/SA555
Single Timer
Features
•
•
•
•
•
High Current Drive Capability (200mA)
Adjustable Duty Cycle
Temperature Stability of 0.005%/°C
Timing From
µSec
to Hours
Turn off Time Less Than 2µSec
Description
The LM555/NE555/SA555 is a highly stable controller
capable of producing accurate timing pulses. With a
monostable operation, the time delay is controlled by one
external resistor and one capacitor. With an astable
operation, the frequency and duty cycle are accurately
controlled by two external resistors and one capacitor.
8-DIP
Applications
•
•
•
•
Precision Timing
Pulse Generation
Time Delay Generation
Sequential Timing
1
8-SOP
1
Internal Block Diagram
R
R
R
8
GND
1
Vcc
Comp.
Trigger
Discharging Tr.
7
2
Discharge
Output
3
OutPut
Stage
F/F
6
Comp.
Threshold
Control
Voltage
Reset
4
5
Vref
Rev. 1.0.3
©2002 Fairchild Semiconductor Corporation
LM555/NE555/SA555
25°
Absolute Maximum Ratings (T
A
= 25
°
C)
Parameter
Supply Voltage
Lead Temperature (Soldering 10sec)
Power Dissipation
Operating Temperature Range
LM555/NE555
SA555
Storage Temperature Range
Symbol
V
CC
T
LEAD
P
D
T
OPR
T
STG
Value
16
300
600
0 ~ +70
-40 ~ +85
-65 ~ +150
Unit
V
°C
mW
°C
°C
2
LM555/NE555/SA555
Electrical Characteristics
(T
A
= 25°C, V
CC
= 5 ~ 15V, unless otherwise specified)
Parameter
Supply Voltage
Supply Current (Low Stable) (Note1)
Timing Error (Monostable)
Initial Accuracy (Note2)
Drift with Temperature (Note4)
Drift with Supply Voltage (Note4)
Timing Error (Astable)
Intial Accuracy (Note2)
Drift with Temperature (Note4)
Drift with Supply Voltage (Note4)
Control Voltage
Threshold Voltage
Threshold Current (Note3)
Trigger Voltage
Trigger Current
Reset Voltage
Reset Current
Symbol
V
CC
I
CC
Conditions
-
V
CC
= 5V, R
L
=
∞
V
CC
= 15V, R
L
=
∞
Min.
4.5
-
-
Typ.
-
3
7.5
Max.
16
6
15
Unit
V
mA
mA
ACCUR
∆t/∆T
∆t/∆V
CC
R
A
= 1kΩ to100kΩ
C = 0.1µF
-
1.0
50
0.1
3.0
0.5
%
ppm/°C
%/V
ACCUR
∆t/∆T
∆t/∆V
CC
V
C
V
TH
I
TH
V
TR
I
TR
V
RST
I
RST
R
A
= 1kΩ to 100kΩ
C = 0.1µF
V
CC
= 15V
V
CC
= 5V
V
CC
= 15V
V
CC
= 5V
-
V
CC
= 5V
V
CC
= 15V
V
TR
= 0V
-
-
V
CC
= 15V
I
SINK
= 10mA
I
SINK
= 50mA
V
CC
= 5V
I
SINK
= 5mA
V
CC
= 15V
I
SOURCE
= 200mA
I
SOURCE
= 100mA
V
CC
= 5V
I
SOURCE
= 100mA
-
2.25
150
0.3
10.0
3.33
10.0
3.33
0.1
1.67
5
0.01
0.7
0.1
-
%
ppm/°C
%/V
V
V
V
V
µA
V
V
µA
V
mA
V
V
V
V
V
V
ns
ns
nA
9.0
2.6
-
-
-
1.1
4.5
0.4
11.0
4.0
-
-
0.25
2.2
5.6
2.0
1.0
0.4
0.25
0.75
0.35
-
-
-
-
100
-
-
Low Output Voltage
V
OL
0.06
0.3
0.05
12.5
13.3
3.3
100
100
20
High Output Voltage
V
OH
12.75
2.75
-
-
-
Rise Time of Output (Note4)
Fall Time of Output (Note4)
Discharge Leakage Current
t
R
t
F
I
LKG
-
-
-
Notes:
1. When the output is high, the supply current is typically 1mA less than at V
CC
= 5V.
2. Tested at V
CC
= 5.0V and V
CC
= 15V.
3. This will determine the maximum value of R
A
+ R
B
for 15V operation, the max. total R = 20MΩ, and for 5V operation, the max.
total R = 6.7MΩ.
4. These parameters, although guaranteed, are not 100% tested in production.
3
LM555/NE555/SA555
Application Information
Table 1 below is the basic operating table of 555 timer:
Table 1. Basic Operating Table
Threshold Voltage
Trigger Voltage
Discharging Tr.
Reset(PIN 4)
Output(PIN 3)
(V
th
)(PIN 6)
(V
tr
)(PIN 2)
(PIN 7)
Don't care
Don't care
Low
Low
ON
V
th
> 2Vcc / 3
High
Low
ON
V
th
> 2Vcc / 3
High
-
-
Vcc / 3 < V
th
< 2 Vcc / 3 Vcc / 3 < V
th
< 2 Vcc / 3
V
th
< Vcc / 3
High
High
OFF
V
th
< Vcc / 3
When the low signal input is applied to the reset terminal, the timer output remains low regardless of the threshold voltage or
the trigger voltage. Only when the high signal is applied to the reset terminal, the timer's output changes according to
threshold voltage and trigger voltage.
When the threshold voltage exceeds 2/3 of the supply voltage while the timer output is high, the timer's internal discharge Tr.
turns on, lowering the threshold voltage to below 1/3 of the supply voltage. During this time, the timer output is maintained
low. Later, if a low signal is applied to the trigger voltage so that it becomes 1/3 of the supply voltage, the timer's internal
discharge Tr. turns off, increasing the threshold voltage and driving the timer output again at high.
1. Monostable Operation
+Vcc
10
2
4
RESET
Trigger
8
Vcc
DISCH
R
A
=1
k
Ω
10
1
2
TRIG
THRES
Capacitance(uF)
10
0
6
C1
10
-1
3
OUT
GND
R
L
CONT
5
C2
10
-2
1
10
-3
10
-5
10
-4
R
10
-3
10
-2
10
-1
1M
10
0
10
M
10
1
A
A
7
10
0k
Ω
10
k
Ω
Ω
Ω
10
2
Time Delay(s)
Figure 1. Monoatable Circuit
Figure 2. Resistance and Capacitance vs.
Time delay(t
d
)
Figure 3. Waveforms of Monostable Operation
4
More (Only the first 5 pages are displayed. Please Download Datasheet to view the full content.) >

NE555N Related Products

NE555N SA555D NE555D
Description 1 Func, PDIP8, DIP-8 PULSE; RECTANGULAR, TIMER, PDSO8, SOP-8 PULSE; RECTANGULAR, TIMER, PDSO8, SOP-8
Is it lead-free? Lead free Lead free Lead free
Maker Rochester Electronics Rochester Electronics Rochester Electronics
Parts packaging code DIP SOIC SOIC
package instruction DIP, SOP-8 SOP-8
Contacts 8 8 8
Reach Compliance Code unknown unknown unknown
Other features IT CAN ALSO OPERATE AT 15V NOMINAL SUPPLY IT CAN ALSO OPERATE AT 15V NOMINAL SUPPLY IT CAN ALSO OPERATE AT 15V NOMINAL SUPPLY
Analog Integrated Circuits - Other Types PULSE; RECTANGULAR PULSE; RECTANGULAR PULSE; RECTANGULAR
JESD-30 code R-PDIP-T8 R-PDSO-G8 R-PDSO-G8
JESD-609 code e0 e3 e3
length 9.2 mm 4.9 mm 4.9 mm
Number of functions 1 1 1
Number of terminals 8 8 8
Maximum operating temperature 70 °C 85 °C 70 °C
Package body material PLASTIC/EPOXY PLASTIC/EPOXY PLASTIC/EPOXY
encapsulated code DIP SOP SOP
Package shape RECTANGULAR RECTANGULAR RECTANGULAR
Package form IN-LINE SMALL OUTLINE SMALL OUTLINE
Peak Reflow Temperature (Celsius) NOT SPECIFIED 260 260
Certification status Not Qualified COMMERCIAL COMMERCIAL
Maximum seat height 5.08 mm 1.8 mm 1.8 mm
Maximum supply voltage (Vsup) 16 V 16 V 16 V
Minimum supply voltage (Vsup) 4.5 V 4.5 V 4.5 V
Nominal supply voltage (Vsup) 5 V 5 V 5 V
surface mount NO YES YES
Temperature level COMMERCIAL INDUSTRIAL COMMERCIAL
Terminal surface Tin/Lead (Sn/Pb) MATTE TIN MATTE TIN
Terminal form THROUGH-HOLE GULL WING GULL WING
Terminal pitch 2.54 mm 1.27 mm 1.27 mm
Terminal location DUAL DUAL DUAL
Maximum time at peak reflow temperature NOT SPECIFIED NOT SPECIFIED NOT SPECIFIED
width 7.62 mm 3.9 mm 3.9 mm
Humidity sensitivity level - 1 1

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