SLFS047C February   1984  – December 2024 TLC556 , TLC556M

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: VDD = 2V for TLC556C, VDD = 3V for TLC556I
    6. 5.6 Electrical Characteristics: VDD = 5V
    7. 5.7 Electrical Characteristics: VDD = 15V
    8. 5.8 Switching Characteristics
    9. 5.9 Typical Characteristics
  7. 6 Detailed Description
    1. 6.1 Overview
    2. 6.2 Functional Block Diagram (Each Timer)
    3. 6.3 Feature Description
      1. 6.3.1 Monostable Operation
      2. 6.3.2 Astable Operation
    4. 6.4 Device Functional Modes
  8. 7 Application and Implementation
    1. 7.1 Application Information
      1. 7.1.1 Designing for Improved ESD Performance
    2. 7.2 Typical Applications
      1. 7.2.1 Pulse-Width Modulation
        1. 7.2.1.1 Design Requirements
        2. 7.2.1.2 Detailed Design Procedure
        3. 7.2.1.3 Application Curve
      2. 7.2.2 Pulse-Position Modulation
        1. 7.2.2.1 Design Requirements
        2. 7.2.2.2 Detailed Design Procedure
        3. 7.2.2.3 Application Curves
  9. 8 Device and Documentation Support
    1. 8.1 Receiving Notification of Documentation Updates
    2. 8.2 Support Resources
    3. 8.3 Trademarks
    4. 8.4 Electrostatic Discharge Caution
    5. 8.5 Glossary
  10. 9 Revision History
  11. 10Mechanical, Packaging, and Orderable Information

6.1 Overview

The TLC556 is a precision timing device used for general-purpose timing applications up to 2.1MHz. All inputs are level sensitive, not edge-triggered inputs. RESET overrides TRIG, which overrides THRES (when CONT pin is 2/3 VDD). The resistance of R resistors vary with VDD and temperature. The resistors match each other very well across VDD and temperature for a temperature-stable control-voltage ratio.

TLC556 TLC556M Simplified Schematic Simplified Schematic