SNAS558N January   2000  – March 2024 LMC555

PRODUCTION DATA  

  1.   1
  2. 1 Features
  3. 2 Applications
  4. 3 Description
  5. 4 Pin Configuration and Functions
  6. 5 Specifications
    1. 5.1 Absolute Maximum Ratings
    2. 5.2 ESD Ratings
    3. 5.3 Recommended Operating Conditions
    4. 5.4 Thermal Information
    5. 5.5 Electrical Characteristics
    6. 5.6 Switching Characteristics
  7. 6 Parameter Measurement Information
  8. 7 Detailed Description
    1. 7.1 Overview
    2. 7.2 Functional Block Diagram
    3. 7.3 Feature Description
      1. 7.3.1 Low-Power Dissipation
      2. 7.3.2 Various Packages and Compatibility
      3. 7.3.3 Operates in Both Astable and Monostable Mode
    4. 7.4 Device Functional Modes
      1. 7.4.1 Monostable Operation
      2. 7.4.2 Astable Operation
  9. 8 Application and Implementation
    1. 8.1 Application Information
    2. 8.2 Typical Applications
      1. 8.2.1 Flash LED in Monostable Mode
        1. 8.2.1.1 Design Requirements
        2. 8.2.1.2 Detailed Design Procedure
        3. 8.2.1.3 Application Curve
      2. 8.2.2 Frequency Divider
        1. 8.2.2.1 Design Requirements
        2. 8.2.2.2 Application Curve
      3. 8.2.3 Pulse Width Modulator
        1. 8.2.3.1 Design Requirements
        2. 8.2.3.2 Application Curve
      4. 8.2.4 Pulse Position Modulator
        1. 8.2.4.1 Design Requirements
        2. 8.2.4.2 Application Curve
      5. 8.2.5 50% Duty Cycle Oscillator
        1. 8.2.5.1 Design Requirements
    3. 8.3 Power Supply Recommendations
    4. 8.4 Layout
      1. 8.4.1 Layout Guidelines
      2. 8.4.2 Layout Example
  10. 9 Device and Documentation Support
    1. 9.1 Receiving Notification of Documentation Updates
    2. 9.2 Support Resources
    3. 9.3 Trademarks
    4. 9.4 Electrostatic Discharge Caution
    5. 9.5 Glossary
  11. 10Revision History
  12. 11Mechanical, Packaging, and Orderable Information

Package Options

Refer to the PDF data sheet for device specific package drawings

Mechanical Data (Package|Pins)
  • D|8
  • P|8
  • YPB|8
  • DGK|8
Thermal pad, mechanical data (Package|Pins)
Orderable Information

5.6 Switching Characteristics

Test Circuit, T = 25°C, all switches open, RESET to VS unless otherwise noted.(1) Characteristic values are specified by design, characterization, or both.
PARAMETER TEST CONDITIONS MIN TYP MAX UNIT
t Timing accuracy SW 2, 4 closed VS = 1.5 V 0.9 1.1 1.25 ms
VS = 5 V 1.0 1.1 1.20
VS = 12 V 1.0 1.1 1.25
Δt/ΔVS Timing shift with supply VS = 5 V ± 1 V 0.3 %/V
Δt/ΔT Timing shift with temperature VS = 5 V 75 ppm/°C
fA Astable frequency SW 1, 3 closed, VS = 12 V 4.0 4.8 5.6 kHz
fMAX Maximum frequency Maximum frequency test circuit, VS = 5 V 3.0 MHz
tR, tF Output rise and
fall times		 Maximum frequency test circuit
VS = 5 V, CL = 10 pF		 15 ns
tPD Trigger propagation delay VS = 5 V, measure delay
from trigger to output		 100 ns
(1) All voltages are measured with respect to the ground pin, unless otherwise specified.
(2) If the RESET pin is to be used at temperatures of −20°C and less, then ensure that VS is 2.0 V or greater.