IC TIMER HIGH TEMPERATURE 8-CDIP

LM555J

Manufacturer Part NumberLM555J
DescriptionIC TIMER HIGH TEMPERATURE 8-CDIP
ManufacturerNational Semiconductor
Type555 Type, Timer/Oscillator (Single)
LM555J datasheet
 

Specifications of LM555J

Voltage - Supply4.5 V ~ 16 VCurrent - Supply10mA
Operating Temperature-55°C ~ 125°CPackage / Case8-CDIP (0.300", 7.62mm)
Frequency100kHzLead Free Status / RoHS StatusContains lead / RoHS non-compliant
Count-Other names*LM555J
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LM555/LM555C
Timer
General Description
The LM555 is a highly stable device for generating accurate
time delays or oscillation. Additional terminals are provided
for triggering or resetting if desired. In the time delay mode of
operation, the time is precisely controlled by one external re-
sistor and capacitor. For astable operation as an oscillator,
the free running frequency and duty cycle are accurately
controlled with two external resistors and one capacitor. The
circuit may be triggered and reset on falling waveforms, and
the output circuit can source or sink up to 200 mA or drive
TTL circuits.
Schematic Diagram
© 1997 National Semiconductor Corporation
DS007851
Features
n Direct replacement for SE555/NE555
n Timing from microseconds through hours
n Operates in both astable and monostable modes
n Adjustable duty cycle
n Output can source or sink 200 mA
n Output and supply TTL compatible
n Temperature stability better than 0.005% per ˚C
n Normally on and normally off output
n Available in 8 pin MSOP package
Applications
n Precision timing
n Pulse generation
n Sequential timing
n Time delay generation
n Pulse width modulation
n Pulse position modulation
n Linear ramp generator
May 1997
DS007851-1
www.national.com

LM555J Summary of contents

  • Page 1

    ... The circuit may be triggered and reset on falling waveforms, and the output circuit can source or sink up to 200 mA or drive TTL circuits. Schematic Diagram © 1997 National Semiconductor Corporation DS007851 Features n Direct replacement for SE555/NE555 n Timing from microseconds through hours ...

  • Page 2

    ... Absolute Maximum Ratings If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage Power Dissipation (Note 3) LM555H, LM555CH LM555, LM555CN LM555CMM Operating Temperature Ranges LM555C LM555 Electrical Characteristics = 25˚ +5V to +15V, unless othewise specified) ...

  • Page 3

    ... CC Note 6: This will determine the maximum value Note 7: No protection against excessive pin 7 current is necessary providing the package dissipation rating will not be exceeded. Note 8: Refer to RETS555X drawing of military LM555H and LM555J versions for specifications. Connection Diagrams Metal Can Package DS007851-2 Top View ...

  • Page 4

    Typical Performance Characteristics Minimuim Pulse Width Required for Triggering DS007851-4 Low Output Voltage vs Output Sink Current DS007851-21 Output Propagation Delay vs Voltage Level of Trigger Pulse DS007851-24 www.national.com Supply Current vs High Output Voltage vs Supply Voltage Output Source ...

  • Page 5

    Typical Performance Characteristics Applications Information MONOSTABLE OPERATION In this mode of operation, the timer functions as a one-shot ( Figure 1 ). The external capacitor is initially held discharged by a transistor inside the timer. Upon application of a nega- ...

  • Page 6

    Applications Information FIGURE 3. Time Delay ASTABLE OPERATION If the circuit is connected as shown in Figure 4 (pins 2 and 6 connected) it will trigger itself and free run as a multivibrator. The external capacitor charges through R charges ...

  • Page 7

    Applications Information (Continued Top Trace: Input 4V/Div. CC TIME = 20 µs/DIV. Middle Trace: Output 2V/Div Bottom Trace: Capacitor 2V/Div 0.01 µF FIGURE 7. Frequency Divider PULSE WIDTH MODULATOR When ...

  • Page 8

    Applications Information Figure 13 shows waveforms generated by the linear ramp. The time interval is given by Top Trace: Input 3V/Div. CC TIME = 20 µs/DIV. Middle Trace: Output 5V/Div ...

  • Page 9

    ... Physical Dimensions inches (millimeters) Metal Can Package (H) Order Number LM555H or LM555CH NS Package Number H08C Ceramic Dual-In-Line Package (J) Order Number LM555J or LM555CJ NS Package Number J08A 9 www.national.com ...

  • Page 10

    Physical Dimensions inches (millimeters) (Continued) www.national.com Small Outline Package (M) Order Number LM555CM NS Package Number M08A 10 ...

  • Page 11

    Physical Dimensions inches (millimeters) (Continued) 8-Lead (0.118” Wide) Molded Mini Small Outline Package Order Number LM555CMM NS Package Number MUA08A 11 www.national.com ...

  • Page 12

    ... National Semiconductor Hong Kong Ltd. Fax: (+49) 0-180-530 85 86 13th Floor, Straight Block, Email: cnjwge@tevm2.nsc.com Ocean Centre, 5 Canton Rd. Tsimshatsui, Kowloon Tel: (+49) 0-180-532 78 32 Hong Kong Tel: (852) 2737-1600 Tel: (+49) 0-180-534 16 80 Fax: (852) 2736-9960 National Semiconductor Japan Ltd. Tel: 81-043-299-2308 Fax: 81-043-299-2408 ...