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PDF LM555I Fiche technique - Fairchild Semiconductor

Numéro de référence LM555I
Description SINGLE TIMER
Fabricant Fairchild Semiconductor 
Logo Fairchild Semiconductor Logo 

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LM555I Datasheet, Description
LM555/I
SINGLE TIMER
SINGLE TIMER
The LM555/I is a highly stable controller capable of producing accurate
timing pulses. With monostable operation, the time delay is controlled
by one external and one capacitor. With astable operation, the frequency
and duty cycle are accurately controlled with two external resistors and
one capacitor.
8 DIP
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
8 SOP
APPLICATIONS
Precision Timing
Pulse Generation
Time Delay Generation
Sequential Timing
ORDERING INFORMATION
BLOCK DIAGRAM
Device Package
LM555CN 8 DIP
LM555CM 8 SOP
LM555CIN 8 DIP
LM555CIM 8 SOP
Operating Temperature
0 ~ +70°C
-40 ~ +85°C
©1999 Fairchild Semiconductor Corporation
Rev. B
LM555I Fiche technique
LM555/I
SINGLE TIMER
ELECTRICAL CHARACTERISTICS
(TA = 25°C, VCC = 5 ~ 15V, unless otherwise specified)
Characteristic
Low Output Voltage
High Output Voltage
Rise Time of Output
Fall Time of Output
Discharge Leakage Current
Symbol
VOL
VOH
tR
tF
ILKG
Test
Conditions
VCC = 15V
ISINK = 10mA
ISINK = 50mA
VCC = 5V
ISINK = 5mA
VCC = 15V
ISOURCE = 200mA
ISOURCE = 100mA
VCC = 5V
ISOURCE = 100mA
Min
12.75
2.75
Typ
0.06
0.3
0.05
12.5
13.3
3.3
100
100
20
Max
0.25
0.75
0.35
100
Unit
V
V
V
V
V
V
ns
ns
nA
Notes:
1. Supply current when output is high is typically 1mA less at VCC = 5V
2. Tested at VCC = 5.0V and VCC = 15V
3. This will determine maximum value of RA + RB for 15V operation, the max. total R = 20M, and for 5V operation the
max. total R = 6.7M
APPLICATION CIRCUIT

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LM555I pdf
TRADEMARKS
The following are registered and unregistered trademarks Fairchild Semiconductor owns or is authorized to use and is
not intended to be an exhaustive list of all such trademarks.
ACEx™
CoolFET™
CROSSVOLT™
E2CMOSTM
FACT™
FACT Quiet Series™
FAST®
FASTr™
GTO™
HiSeC™
ISOPLANAR™
MICROWIRE™
POP™
PowerTrench™
QS™
Quiet Series™
SuperSOT™-3
SuperSOT™-6
SuperSOT™-8
TinyLogic™
DISCLAIMER
FAIRCHILD SEMICONDUCTOR RESERVES THE RIGHT TO MAKE CHANGES WITHOUT FURTHER
NOTICE TO ANY PRODUCTS HEREIN TO IMPROVE RELIABILITY, FUNCTION OR DESIGN. FAIRCHILD
DOES NOT ASSUME ANY LIABILITY ARISING OUT OF THE APPLICATION OR USE OF ANY PRODUCT
OR CIRCUIT DESCRIBED HEREIN; NEITHER DOES IT CONVEY ANY LICENSE UNDER ITS PATENT
RIGHTS, NOR THE RIGHTS OF OTHERS.
LIFE SUPPORT POLICY
FAIRCHILD’S PRODUCTS ARE NOT AUTHORIZED FOR USE AS CRITICAL COMPONENTS IN LIFE SUPPORT
DEVICES OR SYSTEMS WITHOUT THE EXPRESS WRITTEN APPROVAL OF FAIRCHILD SEMICONDUCTOR CORPORATION.
As used herein:
1. Life support devices or systems are devices or
2. A critical component is any component of a life
systems which, (a) are intended for surgical implant into
support device or system whose failure to perform can
the body, or (b) support or sustain life, or (c) whose
be reasonably expected to cause the failure of the life
failure to perform when properly used in accordance
support device or system, or to affect its safety or
with instructions for use provided in the labeling, can be
reasonably expected to result in significant injury to the
effectiveness.
user.
PRODUCT STATUS DEFINITIONS
Definition of Terms
Datasheet Identification
Advance Information
Preliminary
Product Status
Formative or
In Design
First Production
No Identification Needed
Full Production
Definition
This datasheet contains the design specifications for
product development. Specifications may change in
any manner without notice.
This datasheet contains preliminary data, and
supplementary data will be published at a later date.
Fairchild Semiconductor reserves the right to make
changes at any time without notice in order to improve
design.
This datasheet contains final specifications. Fairchild
Semiconductor reserves the right to make changes at
any time without notice in order to improve design.
Obsolete
Not In Production
This datasheet contains specifications on a product
that has been discontinued by Fairchild semiconductor.
The datasheet is printed for reference information only.

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