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NE555 Datasheet(PDF) 3 Page - Texas Instruments

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Part No. NE555
Description  xx555 Precision Timers
Download  36 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

NE555 Datasheet(HTML) 3 Page - Texas Instruments

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1
2
3
4
8
7
6
5
GND
TRIG
OUT
RESET
V
CC
DISCH
THRES
CONT
3
2
1 20 19
9 10 11 12 13
4
5
6
7
8
18
17
16
15
14
NC
DISCH
NC
THRES
NC
NC
TRIG
NC
OUT
NC
NC – No internal connection
NA555...D OR P PACKAGE
NE555...D, P, PS, OR PW PACKAGE
SA555...D OR P PACKAGE
SE555...D, JG, OR P PACKAGE
(TOP VIEW)
SE555...FK PACKAGE
(TOP VIEW)
NA555, NE555, SA555, SE555
www.ti.com
SLFS022I – SEPTEMBER 1973 – REVISED SEPTEMBER 2014
6 Pin Configuration and Functions
Pin Functions
PIN
D, P, PS,
FK
I/O
DESCRIPTION
PW, JG
NAME
NO.
Controls comparator thresholds, Outputs 2/3 VCC, allows bypass capacitor
CONT
5
12
I/O
connection
DISCH
7
17
O
Open collector output to discharge timing capacitor
GND
1
2
Ground
1, 3, 4, 6, 8,
9, 11, 13,
NC
No internal connection
14, 16, 18,
19
OUT
3
7
O
High current timer output signal
RESET
4
10
I
Active low reset input forces output and discharge low.
THRES
6
15
I
End of timing input. THRES > CONT sets output low and discharge low
TRIG
2
5
I
Start of timing input. TRIG < ½ CONT sets output high and discharge open
VCC
8
20
Input supply voltage, 4.5 V to 16 V. (SE555 maximum is 18 V)
Copyright © 1973–2014, Texas Instruments Incorporated
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3
Product Folder Links: NA555 NE555 SA555 SE555


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